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9193 Commits

Author SHA1 Message Date
Chris Lattner
e7945a2e2e Add an option to view the selection dags as they are generated. 
llvm-svn: 19498
 2005-01-12 03:41:21 +00:00
Chris Lattner
4e72a2a000 There are no [mem] op= reg instructions for FP, so remove their entries. 
llvm-svn: 19496
 2005-01-12 03:16:09 +00:00
Chris Lattner
00cb0ace9b Fix a bug where we didn't insert FP_REG_KILL instructions into MBB's that 
contain FP PHI nodes but no other FP defining instructions.  This fixes
183.equake

llvm-svn: 19495
 2005-01-12 02:57:10 +00:00
Chris Lattner
92166ed1df Fold TRUNCATE (LOAD P) into a smaller load from P. 
llvm-svn: 19494
 2005-01-12 02:19:06 +00:00
Chris Lattner
258b23bd9d Be more careful about order of arg evalution for CopyToReg nodes. This shrinks 
256.bzip2 from 7142 to 7103 lines of .s file.

Second, add initial support for folding loads into compares, though this code
is dynamically dead for now. :(

llvm-svn: 19493
 2005-01-12 02:02:48 +00:00
Chris Lattner
604416e8f4 Fold some more [mem] op= val operators. This allows us to things like this 
several times in 256.bzip2:

        mov %EAX, DWORD PTR [%ESP + 204]
-       mov %EAX, DWORD PTR [%EAX]
-       or %EAX, 2097152
-       mov %ECX, DWORD PTR [%ESP + 204]
-       mov DWORD PTR [%ECX], %EAX
+       or DWORD PTR [%EAX], 2097152

llvm-svn: 19492
 2005-01-12 01:28:00 +00:00
Chris Lattner
e83ae1063f Fold loads into sign/zero extends. instead of: 
mov %AL, BYTE PTR [%EDX + l18_length_code]
  movzx %EAX, %AL

Emit:

  movzx %EAX, BYTE PTR [%EDX + l18_length_code]

llvm-svn: 19489
 2005-01-11 23:33:00 +00:00
Chris Lattner
87a38bd4a8 Comment out debug code :) 
Select [mem] += Val operations.  For constants, we used to get:

  mov %ECX, -32768
  add %ECX, DWORD PTR [l4_match_start]
  mov DWORD PTR [l4_match_start], %ECX

Now we get:

  add DWORD PTR [l4_match_start], -32768

For other values we used to get:

  mov %EBP, %EDI   ;; because the add destroys the value
  add %EBP, DWORD PTR [l4_input_len]
  mov DWORD PTR [l4_input_len], %EBP

now we get:

  add DWORD PTR [l4_input_len], %EDI

Both of these use less registers than the alternative, are faster and smaller.

llvm-svn: 19488
 2005-01-11 23:21:30 +00:00
Chris Lattner
282473a25d Handle the global address case here, not just the offset case. 
llvm-svn: 19487
 2005-01-11 22:58:43 +00:00
Chris Lattner
9eb2cc700b Treat int constants as not requiring a register, since they are almost always 
folded into an instruction.

llvm-svn: 19486
 2005-01-11 22:29:12 +00:00
Chris Lattner
74fcfd5148 Print the value types in the nodes of the graph 
llvm-svn: 19485
 2005-01-11 22:21:04 +00:00
Chris Lattner
f588cdd51e add an assertion, avoid creating copyfromreg/copytoreg pairs that are the 
same for PHI nodes.

llvm-svn: 19484
 2005-01-11 22:03:46 +00:00
Chris Lattner
7cb2220907 * Factor a bunch of binary operator cases into shared code. 
* Fold loads into Add, sub, and, or, xor and mul when possible.
* Codegen shl X, 1 as add X, X

llvm-svn: 19483
 2005-01-11 21:19:59 +00:00
Chris Lattner
b1a72cb39a Clear the whole array, always. 
llvm-svn: 19482
 2005-01-11 20:25:26 +00:00
Chris Lattner
b838c9748e Fold multiplies by 3,5,9 into addressing modes when possible. 
llvm-svn: 19480
 2005-01-11 19:37:02 +00:00
Chris Lattner
8de5a27681 Squelch optimized warning. 
llvm-svn: 19475
 2005-01-11 17:46:49 +00:00
Chris Lattner
e7b1130b01 Instead of generating stuff like this: 
mov %ECX, %EAX
        add %ECX, 32768
        mov %SI, WORD PTR [2*%ECX + l13_prev]

Generate this:

        mov %SI, WORD PTR [2*%ECX + l13_prev + 65536]

This occurs when you have a GEP instruction where an index is
"something + imm".

llvm-svn: 19472
 2005-01-11 06:36:20 +00:00
Chris Lattner
bb63a09cd1 Implement MEMCPY natively in terms of rep movs* 
llvm-svn: 19468
 2005-01-11 06:19:26 +00:00
Chris Lattner
b2b08a8bc1 Implement memset -> rep stos* 
llvm-svn: 19467
 2005-01-11 06:14:36 +00:00
Chris Lattner
58816a9e81 Announce that we don't support mem ops yet. 
llvm-svn: 19466
 2005-01-11 05:57:36 +00:00
Chris Lattner
963af6652b Teach legalize to lower MEMSET/MEMCPY/MEMMOVE operations if the target 
does not support them.

llvm-svn: 19465
 2005-01-11 05:57:22 +00:00
Chris Lattner
6b9082114f Print new operations. 
llvm-svn: 19464
 2005-01-11 05:57:01 +00:00
Chris Lattner
7cde8a2658 Turn memset/memcpy/memmove into the corresponding operations. 
llvm-svn: 19463
 2005-01-11 05:56:49 +00:00
Chris Lattner
f867443d7e Teach the address selector to make 'reg+reg' addressing modes. 
llvm-svn: 19457
 2005-01-11 04:40:19 +00:00
Reid Spencer
7e9642515c Add the LOADABLE_MODULE=1 directive to indicate that this shared library is 
intended to be a dlopenable module and not a "plain" shared library.

llvm-svn: 19456
 2005-01-11 04:33:32 +00:00
Chris Lattner
edf06be50e Emit NOT instructions. 
llvm-svn: 19455
 2005-01-11 04:31:30 +00:00
Chris Lattner
2eacd11a86 shift X, 0 -> X 
llvm-svn: 19453
 2005-01-11 04:25:13 +00:00
Chris Lattner
4e4bef2d6c Fix a bug emitting branches that broke a lot of programs. 
llvm-svn: 19452
 2005-01-11 04:06:27 +00:00
Chris Lattner
4b51297a94 Be more careful where we set ContainsFPCode. We were missing a set in the 
int -> FP casting code.  Note that we don't have to set it for FP operations
that take FP values as operands: whatever produces the FP value will set the
flag.

llvm-svn: 19451
 2005-01-11 03:50:45 +00:00
Chris Lattner
0c4c4094e3 Fix a major bug in setcc/cmov folding, where we accidentally 
inverted the sense of the comparison.

llvm-svn: 19450
 2005-01-11 03:37:59 +00:00
Chris Lattner
d188e03011 Take register pressure into account when we have to decide whether to 
evaluate the LHS or the RHS of an operation first.  This causes good things
to happen.  For example, instead of compiling a loop to this:

.LBBstrength_result7_1: # loopentry
        movl 16(%esp), %edi
        movl (%edi), %edi             ;;; LOAD
        movl (%ecx), %ebx
        movl $2, (%eax,%ebx,4)
        movl (%edx), %ebx
        movl %esi, %ebp
        addl $21, %ebp
        addl $42, %esi
        cmpl $0, %edi                 ;;; USE
        cmovne %esi, %ebp
        cmpl %ebp, %ebx
        movl %ebp, %esi
        jg .LBBstrength_result7_1

We now compile it to this:

.LBBstrength_result7_1: # loopentry
        movl %edi, %ebx
        addl $42, %ebx
        addl $21, %edi
        movl (%ecx), %ebp              ;; LOAD
        cmpl $0, %ebp                  ;; USE
        cmovne %ebx, %edi
        movl (%edx), %ebx
        movl $2, (%eax,%ebx,4)
        movl (%esi), %ebx
        cmpl %edi, %ebx
        jg .LBBstrength_result7_1

Which reduces register pressure enough (in this case) to avoid spilling in the
loop.

As another example, consider the CodeGen/X86/regpressure.ll testcase.  We
used to generate this code for both cases:

regpressure1:
        subl $32, %esp
        movl %esi, 12(%esp)
        movl %edi, 8(%esp)
        movl %ebx, 4(%esp)
        movl %ebp, (%esp)
        movl 36(%esp), %ecx
        movl (%ecx), %eax
        movl 4(%ecx), %edx
        movl %edx, 24(%esp)
        movl 8(%ecx), %edx
        movl %edx, 16(%esp)
        movl 12(%ecx), %edx
        movl 16(%ecx), %esi
        movl 20(%ecx), %edi
        movl 24(%ecx), %ebx
        movl %ebx, 28(%esp)
        movl 28(%ecx), %ebx
        movl 32(%ecx), %ebp
        movl %ebp, 20(%esp)
        movl 36(%ecx), %ecx
        imull 24(%esp), %eax
        imull 16(%esp), %eax
        imull %edx, %eax
        imull %esi, %eax
        imull %edi, %eax
        imull 28(%esp), %eax
        imull %ebx, %eax
        imull 20(%esp), %eax
        imull %ecx, %eax
        movl (%esp), %ebp
        movl 4(%esp), %ebx
        movl 8(%esp), %edi
        movl 12(%esp), %esi
        addl $32, %esp
        ret

This code is basically trying to do all of the loads first, then execute all
of the multiplies.  Because we run out of registers, lots of spill code happens.
We now generate this code for both cases:

regpressure1:
        movl 4(%esp), %ecx
        movl (%ecx), %eax
        movl 4(%ecx), %edx
        imull %edx, %eax
        movl 8(%ecx), %edx
        imull %edx, %eax
        movl 12(%ecx), %edx
        imull %edx, %eax
        movl 16(%ecx), %edx
        imull %edx, %eax
        movl 20(%ecx), %edx
        imull %edx, %eax
        movl 24(%ecx), %edx
        imull %edx, %eax
        movl 28(%ecx), %edx
        imull %edx, %eax
        movl 32(%ecx), %edx
        imull %edx, %eax
        movl 36(%ecx), %ecx
        imull %ecx, %eax
        ret

which is much nicer (when we fold loads into the muls it will be even better).
The old instruction selector used to produce the good code for regpressure1
but not for regpressure2, as it depended on the order of operations in the
LLVM code.

llvm-svn: 19449
 2005-01-11 03:11:44 +00:00
Chris Lattner
07a3ade230 Print SelectionDAGs bottom up, include extra info in the node labels 
llvm-svn: 19447
 2005-01-11 00:34:33 +00:00
Chris Lattner
1c273d3a14 Add a marker for the graph root. 
llvm-svn: 19445
 2005-01-10 23:52:04 +00:00
Chris Lattner
daa052a97e Put the operation name in each node, put the function name on the graph. 
llvm-svn: 19444
 2005-01-10 23:26:00 +00:00
Chris Lattner
0307506841 Split out SDNode::getOperationName into its own method. 
llvm-svn: 19443
 2005-01-10 23:25:25 +00:00
Chris Lattner
8c13447254 Implement initial selectiondag printing support. This gets us a nice 
graph with no labels! :)

llvm-svn: 19441
 2005-01-10 23:08:40 +00:00
Chris Lattner
497e24c885 Fold setcc instructions into selects. 
llvm-svn: 19438
 2005-01-10 22:10:13 +00:00
Chris Lattner
65d007ab62 Add conditional moves for the parity flag. 
llvm-svn: 19437
 2005-01-10 22:09:33 +00:00
Chris Lattner
5433d8de29 Lower to the correct functions. This fixes FreeBench/fourinarow 
llvm-svn: 19436
 2005-01-10 21:02:37 +00:00
Chris Lattner
d61491dea2 Implement 8-bit multiply for X86. 
llvm-svn: 19435
 2005-01-10 20:55:48 +00:00
Chris Lattner
b35b30c283 Rework constant pool handling so that function constant pools are no longer 
leaked to the system.  Now they are destroyed with the JITMemoryManager is
destroyed.

llvm-svn: 19434
 2005-01-10 18:23:22 +00:00
Jeff Cohen
8b03a55724 Apply feedback from Chris. 
llvm-svn: 19432
 2005-01-10 04:23:32 +00:00
Jeff Cohen
a7f1ae5dc0 Apply feed back from Chris: 
1. Rename createLoaderPass to CreateProfileLoaderPass
  2. Opt shouldn't use the pass registered in CodeGen.

llvm-svn: 19431
 2005-01-10 03:56:27 +00:00
Chris Lattner
02236df007 Implement a couple of more simplifications. This lets us codegen: 
int test2(int * P, int* Q, int A, int B) {
        return P+A == P;
}

into:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %eax
        shll $2, %eax
        cmpl $0, %eax
        sete %al
        movzbl %al, %eax
        ret

instead of:

test2:
        movl 4(%esp), %eax
        movl 12(%esp), %ecx
        leal (%eax,%ecx,4), %ecx
        cmpl %eax, %ecx
        sete %al
        movzbl %al, %eax
        ret

ICC is producing worse code:

test2:
        movl      4(%esp), %eax                                 #8.5
        movl      12(%esp), %edx                                #8.5
        lea       (%edx,%edx), %ecx                             #9.9
        addl      %ecx, %ecx                                    #9.9
        addl      %eax, %ecx                                    #9.9
        cmpl      %eax, %ecx                                    #9.16
        movl      $0, %eax                                      #9.16
        sete      %al                                           #9.16
        ret                                                     #9.16

as is GCC (looks like our old code):

test2:
        movl    4(%esp), %edx
        movl    12(%esp), %eax
        leal    (%edx,%eax,4), %ecx
        cmpl    %edx, %ecx
        sete    %al
        movzbl  %al, %eax
        ret

llvm-svn: 19430
 2005-01-10 02:03:02 +00:00
Chris Lattner
8d09b03ed1 Fix incorrect constant folds, fixing Stepanov after the SHR patch. 
llvm-svn: 19429
 2005-01-10 01:16:03 +00:00
Chris Lattner
9d479d4a34 Constant fold shifts, turning this loop: 
.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $16000, %ecx
        sarl $3, %ecx
        cmpl %eax, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jg .LBB_Z5test0PdS__3   # no_exit.1

into:

.LBB_Z5test0PdS__3:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__3   # no_exit.1

llvm-svn: 19427
 2005-01-10 00:07:15 +00:00
Reid Spencer
283688b80d Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly 
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

llvm-svn: 19426
 2005-01-09 23:29:00 +00:00
Chris Lattner
59d7066da8 Add some folds for == and != comparisons. This allows us to 
codegen this loop in stepanov:

no_exit.i:              ; preds = %entry, %no_exit.i, %then.i, %_Z5checkd.exit
        %i.0.0 = phi int [ 0, %entry ], [ %i.0.0, %no_exit.i ], [ %inc.0, %_Z5checkd.exit ], [ %inc.012, %then.i ]              ; <int> [#uses=3]
        %indvar = phi uint [ %indvar.next, %no_exit.i ], [ 0, %entry ], [ 0, %then.i ], [ 0, %_Z5checkd.exit ]          ; <uint> [#uses=3]
        %result_addr.i.0 = phi double [ %tmp.4.i.i, %no_exit.i ], [ 0.000000e+00, %entry ], [ 0.000000e+00, %then.i ], [ 0.000000e+00, %_Z5checkd.exit ]          ; <double> [#uses=1]
        %first_addr.0.i.2.rec = cast uint %indvar to int                ; <int> [#uses=1]
        %first_addr.0.i.2 = getelementptr [2000 x double]* %data, int 0, uint %indvar           ; <double*> [#uses=1]
        %inc.i.rec = add int %first_addr.0.i.2.rec, 1           ; <int> [#uses=1]
        %inc.i = getelementptr [2000 x double]* %data, int 0, int %inc.i.rec            ; <double*> [#uses=1]
        %tmp.3.i.i = load double* %first_addr.0.i.2             ; <double> [#uses=1]
        %tmp.4.i.i = add double %result_addr.i.0, %tmp.3.i.i            ; <double> [#uses=2]
        %tmp.2.i = seteq double* %inc.i, getelementptr ([2000 x double]* %data, int 0, int 2000)                ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
        br bool %tmp.2.i, label %_Z10accumulateIPddET0_T_S2_S1_.exit, label %no_exit.i

To this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        movl %eax, %ecx
        shll $3, %ecx
        cmpl $16000, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i

instead of this:

.LBB_Z4testIPddEvT_S1_T0__1:    # no_exit.i
        fldl data(,%eax,8)
        fldl 16(%esp)
        faddp %st(1)
        fstpl 16(%esp)
        incl %eax
        leal data(,%eax,8), %ecx
        leal data+16000, %edx
        cmpl %edx, %ecx
        #FP_REG_KILL
        jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i

llvm-svn: 19425
 2005-01-09 20:52:51 +00:00
Jeff Cohen
f692cd303d Add last four createXxxPass functions 
llvm-svn: 19424
 2005-01-09 20:42:52 +00:00
Jeff Cohen
91dd6d2d20 Fix VC++ compilation error 
llvm-svn: 19423
 2005-01-09 20:41:56 +00:00
Chris Lattner
fa06762d0e Print the DAG out more like a DAG in nested format. 
llvm-svn: 19422
 2005-01-09 20:38:33 +00:00
Chris Lattner
e3b9f22967 Print out nodes sorted by their address to make it easier to find them in a list. 
llvm-svn: 19421
 2005-01-09 20:26:36 +00:00
Chris Lattner
fcab5f75c0 Codegen (Reg|imm)+&GV as an LEA, because we cannot put it into the immediate field 
of an ADDri (due to current restrictions on MachineOperand :( ).  This allows
us to generate:

        leal Data+16000, %edx

instead of:

        movl $Data, %edx
        addl $16000, %edx

llvm-svn: 19420
 2005-01-09 20:20:29 +00:00
Chris Lattner
82caa0dc2e Add a simple transformation. This allows us to compile one of the inner 
loops in stepanov to this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        cmpl $2000, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

instead of this:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl data(,%eax,8)
        fldl 24(%esp)
        faddp %st(1)
        fstl 24(%esp)
        incl %eax
        movl $data, %ecx
        movl %ecx, %edx
        addl $16000, %edx
        subl %ecx, %edx
        movl %edx, %ecx
        sarl $2, %ecx
        shrl $29, %ecx
        addl %ecx, %edx
        sarl $3, %edx
        cmpl %edx, %eax
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2

The old instruction selector produced:

.LBB_Z5test0PdS__2:     # no_exit.1
        fldl 24(%esp)
        faddl data(,%eax,8)
        fstl 24(%esp)
        movl %eax, %ecx
        incl %ecx
        incl %eax
        leal data+16000, %edx
        movl $data, %edi
        subl %edi, %edx
        movl %edx, %edi
        sarl $2, %edi
        shrl $29, %edi
        addl %edi, %edx
        sarl $3, %edx
        cmpl %edx, %ecx
        fstpl 16(%esp)
        #FP_REG_KILL
        jl .LBB_Z5test0PdS__2   # no_exit.1

Which is even worse!

llvm-svn: 19419
 2005-01-09 20:09:57 +00:00
Chris Lattner
35375c11bf Fix copy and pasto's for FP -> Int. This fixes fldry 
llvm-svn: 19418
 2005-01-09 19:49:59 +00:00
Chris Lattner
d674d08230 Fix a bug legalizing call instructions (make sure to remember all result 
values), and eliminate some switch statements.

llvm-svn: 19417
 2005-01-09 19:43:23 +00:00
Chris Lattner
ac23355362 Fix a minor bug legalizing dynamic_stackalloc. This allows us to compile 
std::__pad<wchar_t, std::char_traits<wchar_t> >::_S_pad(std::ios_base&, wchar_t, wchar_t*, wchar_t const*, int, int, bool)

from libstdc++

llvm-svn: 19416
 2005-01-09 19:07:54 +00:00
Chris Lattner
b3e31c6def Teach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca) 
llvm-svn: 19415
 2005-01-09 19:03:49 +00:00
Chris Lattner
45155a3dee Initial implementation of FP->INT and INT->FP casts 
Also, fix zero_extend from bool to i8, which fixes Shootout/objinst.

llvm-svn: 19414
 2005-01-09 18:52:44 +00:00
Jeff Cohen
6827f061cc Get lib/Analysis/DataStructure to compile with VC++ 
llvm-svn: 19412
 2005-01-09 04:18:28 +00:00
Chris Lattner
9ca9b20447 Fix a subtle bug involving constant expr casts from int to fp 
llvm-svn: 19410
 2005-01-09 01:49:29 +00:00
Chris Lattner
cc18c057cf Handle static alloca arguments to PHI nodes. 
llvm-svn: 19409
 2005-01-09 01:16:24 +00:00
Chris Lattner
c5e53c07fd Implement varargs and returnaddress/frameaddress intrinsics. With this 
patch, all of SingleSource/UnitTests passes.

llvm-svn: 19408
 2005-01-09 00:01:27 +00:00
Chris Lattner
3454e31bba Use new interfaces to correctly lower varargs and return/frame address intrinsics. 
llvm-svn: 19407
 2005-01-09 00:00:49 +00:00
Chris Lattner
aad3ca491d Add support for llvm.setjmp and longjmp. Only 3 SingleSource/UnitTests fail now. 
llvm-svn: 19404
 2005-01-08 22:48:57 +00:00
Jeff Cohen
6c0db8d863 Add even more missing createXxxPass functions. 
llvm-svn: 19402
 2005-01-08 22:01:16 +00:00
Chris Lattner
ca81756527 Okay 15th time is the charm. Looking at the vector size is useless as it 
gets clobbered by a previous statement.  This fixes all calls finally.

llvm-svn: 19399
 2005-01-08 20:51:36 +00:00
Chris Lattner
85816cff9a Okay, my off by one was actually off by two. This fixes Generic/2003-07-07-BadLongConst.ll 
llvm-svn: 19398
 2005-01-08 20:39:31 +00:00
Chris Lattner
3b52b2f6c2 Tighten up assertions. 
llvm-svn: 19397
 2005-01-08 20:35:13 +00:00
Chris Lattner
2d68cb6cf4 Fix off by one error 
llvm-svn: 19396
 2005-01-08 20:31:34 +00:00
Chris Lattner
9dc8275f47 Allow arrays to have more than 4G elements. 
llvm-svn: 19395
 2005-01-08 20:19:51 +00:00
Jeff Cohen
aef3f70921 Use size_t instead of long to represent memory usage. long is 32 bits 
on 64-bit Windows.

llvm-svn: 19393
 2005-01-08 20:15:57 +00:00
Chris Lattner
7a6914d3fc Silence warnings 
llvm-svn: 19392
 2005-01-08 20:13:44 +00:00
Chris Lattner
ed92fd75e8 Silence VS warnings. 
llvm-svn: 19391
 2005-01-08 20:13:19 +00:00
Chris Lattner
f1c684b3a2 Silence VS warnings. 
llvm-svn: 19390
 2005-01-08 20:07:03 +00:00
Chris Lattner
a4a16f17a3 Silence VS warnings 
llvm-svn: 19389
 2005-01-08 20:05:34 +00:00
Chris Lattner
c23687789e Silence VS warnings 
llvm-svn: 19388
 2005-01-08 19:59:10 +00:00
Chris Lattner
2dafaac5d1 Silence warnings from VS 
llvm-svn: 19386
 2005-01-08 19:55:00 +00:00
Chris Lattner
104064bf2c Silence VS warnings 
llvm-svn: 19385
 2005-01-08 19:53:50 +00:00
Chris Lattner
a58b3f48ef Silence VS warnings. 
llvm-svn: 19384
 2005-01-08 19:52:31 +00:00
Chris Lattner
c2821461e9 Fix VS warnings 
llvm-svn: 19383
 2005-01-08 19:48:40 +00:00
Chris Lattner
2e24bcf264 Fix VS warnings. 
llvm-svn: 19382
 2005-01-08 19:45:31 +00:00
Chris Lattner
131ada2668 Fix uint64_t -> unsigned VS warnings. 
llvm-svn: 19381
 2005-01-08 19:42:22 +00:00
Chris Lattner
ee218d4348 Silence VS warnings. 
llvm-svn: 19380
 2005-01-08 19:37:20 +00:00
Chris Lattner
d1e987d9ae Silence warnings 
llvm-svn: 19379
 2005-01-08 19:34:41 +00:00
Chris Lattner
77d45e2e60 Do not throw away bits for no reason 
llvm-svn: 19378
 2005-01-08 19:32:59 +00:00
Chris Lattner
e4d415db9d Silence a VS warning. 
llvm-svn: 19377
 2005-01-08 19:31:31 +00:00
Chris Lattner
c4d075cfa3 Adjust to changes in LowerCallTo interface 
Minor bugfixes

llvm-svn: 19376
 2005-01-08 19:28:19 +00:00
Chris Lattner
38545e9952 Implement handling of most long operators through libcalls. 
Fix a bug legalizing "ret (Val,Val)"

llvm-svn: 19375
 2005-01-08 19:27:05 +00:00
Chris Lattner
60ef22ce82 Adjust to changes in LowerCAllTo interfaces 
llvm-svn: 19374
 2005-01-08 19:26:18 +00:00
Jeff Cohen
ce541ade79 Add more missing createXxxPass functions. 
llvm-svn: 19370
 2005-01-08 17:21:40 +00:00
Chris Lattner
fd84495692 Add support for FP->INT conversions and back. 
llvm-svn: 19369
 2005-01-08 08:08:56 +00:00
Chris Lattner
6c7d3bd8ea Wrap long line. 
llvm-svn: 19367
 2005-01-08 06:59:50 +00:00
Chris Lattner
e759d984cf Implement the 'store FPIMM, Ptr' -> 'store INTIMM, Ptr' optimization for 
all targets.

llvm-svn: 19366
 2005-01-08 06:25:56 +00:00
Chris Lattner
e32ab4bd47 1ULL << 64 is undefined, don't do it. 
llvm-svn: 19365
 2005-01-08 06:24:30 +00:00
Chris Lattner
473ec492f7 The X86 instruction selector already handles codegen of: 
store float 123.45, float* %P

as an integer store.  This adds handling of float immediate stores as integers
for arguments passed function calls.

This is now tested by CodeGen/X86/store-fp-constant.ll

llvm-svn: 19364
 2005-01-08 05:45:24 +00:00
Chris Lattner
717236fcd3 Fix a pointer invalidation problem. This fixes Generic/badarg6.ll 
llvm-svn: 19361
 2005-01-07 23:32:00 +00:00
Chris Lattner
53173ba1d1 Fold conditional branches on constants away. 
llvm-svn: 19360
 2005-01-07 22:49:57 +00:00
Chris Lattner
8f55fae569 Fix a thinko in the reassociation code, fixing Generic/badlive.ll 
llvm-svn: 19359
 2005-01-07 22:44:09 +00:00
Chris Lattner
6f461f406e Add support for truncating integer casts from long. 
llvm-svn: 19358
 2005-01-07 22:37:48 +00:00
Chris Lattner
79ca9cdb7e Fix a bug in load expansion legalization and ret legalization. This fixes 
CodeGen/Generic/select.ll:castconst.

llvm-svn: 19357
 2005-01-07 22:28:47 +00:00
Chris Lattner
a834e96647 Legalize unconditional branches too 
llvm-svn: 19356
 2005-01-07 22:12:08 +00:00
Chris Lattner
3f2ce91a99 Implement support for long GEP indices on 32-bit archs and support for 
int GEP indices on 64-bit archs.

llvm-svn: 19354
 2005-01-07 21:56:57 +00:00
Chris Lattner
191554c09f Simplify: truncate ({zero|sign}_extend (X)) 
llvm-svn: 19353
 2005-01-07 21:56:24 +00:00
Chris Lattner
60e3842843 implement legalization of a bunch more operators. 
llvm-svn: 19352
 2005-01-07 21:45:56 +00:00
Chris Lattner
8c6c12da86 Fix another bug legalizing calls! 
llvm-svn: 19350
 2005-01-07 21:35:32 +00:00
Chris Lattner
86601673d6 Fix handling of dead PHI nodes. 
llvm-svn: 19349
 2005-01-07 21:34:19 +00:00
Chris Lattner
d671aa053c Fix a bug legalizing calls 
llvm-svn: 19348
 2005-01-07 21:34:13 +00:00
Chris Lattner
3871313761 After legalizing a DAG, delete dead nodes to save space. 
llvm-svn: 19346
 2005-01-07 21:09:37 +00:00
Chris Lattner
16faa6501a Implement RemoveDeadNodes 
llvm-svn: 19345
 2005-01-07 21:09:16 +00:00
Chris Lattner
39baa91b9a Teach legalize how to handle condbranches 
llvm-svn: 19339
 2005-01-07 08:19:42 +00:00
Chris Lattner
2c398fc8f6 Allow the selection-dag based selector to be diabled with -disable-pattern-isel. 
For now, this is the default, as the current selector is missing some big pieces.
To enable the new selector, pass -disable-pattern-isel=false to llc or lli.

llvm-svn: 19335
 2005-01-07 07:50:50 +00:00
Chris Lattner
216198574d Reimplementation of the X86 pattern isel. This is still missing many large 
pieces, but can already do amazing things in some cases.

llvm-svn: 19334
 2005-01-07 07:49:41 +00:00
Chris Lattner
74019f517a This file is now dead. 
llvm-svn: 19333
 2005-01-07 07:49:05 +00:00
Chris Lattner
079b497982 Add a new prototype 
llvm-svn: 19332
 2005-01-07 07:48:33 +00:00
Chris Lattner
74f8f6f657 Initial implementation of the SelectionDAGISel class. This contains most 
of the code for lowering from LLVM code to a SelectionDAG.

llvm-svn: 19331
 2005-01-07 07:47:53 +00:00
Chris Lattner
89f2ccbe9c This file is obsolete 
llvm-svn: 19330
 2005-01-07 07:47:23 +00:00
Chris Lattner
fd473edcd8 Initial implementation of the DAG legalization. This still has a long way 
to go, but it does work for some non-trivial cases now.

llvm-svn: 19329
 2005-01-07 07:47:09 +00:00
Chris Lattner
c72669973a Complete rewrite of the SelectionDAG class. 
llvm-svn: 19327
 2005-01-07 07:46:32 +00:00
Chris Lattner
fb848e6fad First draft of new Target interface 
llvm-svn: 19324
 2005-01-07 07:44:53 +00:00
Chris Lattner
83deb67391 Add convenience method. 
llvm-svn: 19321
 2005-01-07 07:40:32 +00:00
Misha Brukman
22df7f894f Convert tabs to spaces 
llvm-svn: 19320
 2005-01-07 07:05:34 +00:00
Jeff Cohen
c07c54f5b4 Add missing createXxxPass functions 
llvm-svn: 19319
 2005-01-07 06:57:28 +00:00
Jeff Cohen
79dc6715bb Add missing include 
llvm-svn: 19315
 2005-01-07 05:42:13 +00:00
Chris Lattner
608dd77d6b Codegen -1 and -0.0 more efficiently. This implements CodeGen/X86/negatize_zero.ll 
llvm-svn: 19313
 2005-01-06 21:19:16 +00:00
Chris Lattner
97d3bf5049 No need to pessimize current code for future possibilities. 
llvm-svn: 19311
 2005-01-06 16:26:38 +00:00
Jeff Cohen
67f737e5d1 Put createLoopUnswitchPass() into proper namespace 
llvm-svn: 19306
 2005-01-06 05:47:18 +00:00
Jeff Cohen
a8574e28a3 Add missing include 
llvm-svn: 19305
 2005-01-06 05:46:44 +00:00
Jeff Cohen
146e5504e5 Fix CBE code so that it compiles with VC++. 
llvm-svn: 19303
 2005-01-06 04:21:49 +00:00
Chris Lattner
6d651234d6 1. If a double FP constant must be put into a constant pool, but it can be 
precisely represented as a float, put it into the constant pool as a
   float.
2. Use the cbw/cwd/cdq instructions instead of an explicit SAR for signed
   division.

llvm-svn: 19291
 2005-01-05 16:30:14 +00:00
Chris Lattner
b438f5251f Minor optimization to allocate R8 registers in a better order. 
llvm-svn: 19289
 2005-01-05 16:09:16 +00:00
Chris Lattner
6446c6fb34 To not break TBAA rules, use a union. 
llvm-svn: 19280
 2005-01-04 01:56:57 +00:00
Jeff Cohen
36968ed8c1 Revert elimination of global variable hack... still needed. 
llvm-svn: 19273
 2005-01-03 16:34:19 +00:00
Chris Lattner
1aaf8cccb2 ADC and IMUL are also commutable. 
llvm-svn: 19264
 2005-01-03 01:27:59 +00:00
Chris Lattner
93fc4bd9cb This hunk: 
-  unsigned TrueValue = getReg(TrueVal, BB, BB->begin());
+  unsigned TrueValue = getReg(TrueVal);

Fixes the PPC regressions from last night.

The other hunk is just a clarity improvement.

llvm-svn: 19263
 2005-01-02 23:07:31 +00:00
Reid Spencer
110e76fd79 Correct the case of a #include directory name, just in case. 
llvm-svn: 19254
 2005-01-02 09:45:04 +00:00
Jeff Cohen
1087b72875 Eliminate the use of the global variable hack in the X86 target that was used 
to get Visual Studio to link in X86.lib to the executables that need it.  There
is another way of doing it.

llvm-svn: 19252
 2005-01-02 04:23:12 +00:00
Chris Lattner
a78fd4726e Disable 2->3 address promotion of add and inc instructions to LEA's. In 
addition to being three address, LEA's don't set the flags.

This fixes 186.crafty.

llvm-svn: 19251
 2005-01-02 04:18:17 +00:00
Chris Lattner
3ef32da6c3 Add a new method. 
llvm-svn: 19249
 2005-01-02 02:38:18 +00:00
Chris Lattner
95f1e628ed Add support for SETNPr to lower to memory form. 
llvm-svn: 19248
 2005-01-02 02:37:46 +00:00
Chris Lattner
d6bc921fa8 Implement the convertToThreeAddress method, add support for inverting JP/JNP 
branches.

llvm-svn: 19247
 2005-01-02 02:37:07 +00:00
Chris Lattner
0d6f03e52b Two changes here: 
1. Add new instructions for checking parity flags: JP, JNP, SETP, SETNP.
2. Set the isCommutable and isPromotableTo3Address bits on several
   instructions.

llvm-svn: 19246
 2005-01-02 02:35:46 +00:00
Chris Lattner
c1feb0c8fe Make the 2-address instruction lowering pass smarter in two ways: 
1. If we are two-addressing a commutable instruction and the LHS is not the
   last use of the variable, see if the instruction is the last use of the
   RHS.  If so, commute the instruction, allowing us to avoid a
   register-register copy in many cases for common instructions like ADD, OR,
   AND, etc on X86.
2. If #1 doesn't hold, and if this is an instruction that also existing in
   3-address form, promote the instruction to a 3-address instruction to
   avoid the register-register copy.  We can do this for several common
   instructions in X86, including ADDrr, INC, DEC, etc.

This patch implements test/Regression/CodeGen/X86/commute-two-addr.ll,
overlap-add.ll, and overlap-shift.ll when I check in the X86 support for it.

llvm-svn: 19245
 2005-01-02 02:34:12 +00:00
Chris Lattner
cc26e332b3 Add some bits that can be set for instructions. 
llvm-svn: 19241
 2005-01-02 02:27:48 +00:00
Reid Spencer
37f31d4aa1 Make printing a warning message optional in CheckBytecodeOutputToConsole. 
llvm-svn: 19240
 2005-01-02 00:10:03 +00:00
Reid Spencer
2d73c4d556 Implement a function to print a warning if bytecode output is to be sent to 
a terminal/console.

llvm-svn: 19237
 2005-01-01 23:56:20 +00:00
Jeff Cohen
7466dd37d0 Add functions for determining if the stdin/out/err is connected to a 
console or not.

llvm-svn: 19236
 2005-01-01 22:54:05 +00:00
Reid Spencer
ed2f874a8d Add functions for determining if the stdin/out/err is connected to a 
console or not.

llvm-svn: 19233
 2005-01-01 22:29:26 +00:00
Chris Lattner
14d51ed06a This is a bulk commit that implements the following primary improvements: 
* We can now fold cast instructions into select instructions that
    have at least one constant operand.
  * We now optimize expressions more aggressively based on bits that are
    known to be zero.  These optimizations occur a lot in code that uses
    bitfields even in simple ways.
  * We now turn more cast-cast sequences into AND instructions.  Before we
    would only do this if it if all types were unsigned.  Now only the
    middle type needs to be unsigned (guaranteeing a zero extend).
  * We transform sign extensions into zero extensions in several cases.

This corresponds to these test/Regression/Transforms/InstCombine testcases:
  2004-11-22-Missed-and-fold.ll
  and.ll: test28-29
  cast.ll: test21-24
  and-or-and.ll
  cast-cast-to-and.ll
  zeroext-and-reduce.ll

llvm-svn: 19220
 2005-01-01 16:22:27 +00:00
Chris Lattner
ad63a0d6a4 Fix a FIXME: Select instructions on longs were miscompiled. 
While we're at it, improve codegen of select instructions.  For this
testcase:

int %test(bool %C, int %A, int %B) {
  %D = select bool %C, int %A, int %B
  ret int %D
}

We used to generate this code:

_test:
        cmpwi cr0, r3, 0
        bne .LBB_test_2 ;
.LBB_test_1:    ;
        b .LBB_test_3   ;
.LBB_test_2:    ;
        or r5, r4, r4
.LBB_test_3:    ;
        or r3, r5, r5
        blr

Now we emit:

_test:
        cmpwi cr0, r3, 0
        bne .LBB_test_2 ;
.LBB_test_1:    ;
        or r4, r5, r5
.LBB_test_2:    ;
        or r3, r4, r4
        blr

-Chris

llvm-svn: 19214
 2005-01-01 16:10:12 +00:00
Chris Lattner
ccd0d44133 Substantially improve the code generated by non-folded setcc instructions. 
In particular, instead of compiling this:

bool %test(int %A, int %B) {
  %C = setlt int %A, %B
  ret bool %C
}

to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        bl .LBBtest_1   !
        nop
        ba .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, 1, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_2:     !
        or %g0, 0, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_3:     !
        restore %g0, %g0, %g0
        retl
        nop

We now compile it to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        or %g0, 1, %i0
        bl .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, %g0, %i0
.LBBtest_2:     !
        restore %g0, %g0, %g0
        retl
        nop

llvm-svn: 19213
 2005-01-01 16:06:57 +00:00
Chris Lattner
5fff877f74 Implement SimplifyCFG/DeadSetCC.ll 
SimplifyCFG is one of those passes that we use for final cleanup: it should
not rely on other passes to clean up its garbage.  This fixes the "why are
trivially dead setcc's in the output of gccas" problem.

llvm-svn: 19212
 2005-01-01 16:02:12 +00:00
Chris Lattner
043ec8bb61 Allow getZeroExtend and getSignExtend to work with boolean inputs. 
llvm-svn: 19210
 2005-01-01 15:59:57 +00:00
Jeff Cohen
a46121ed32 Where do these tabs keep coming from??? 
llvm-svn: 19203
 2004-12-31 19:03:31 +00:00
Jeff Cohen
9b439381c3 Mostly cleanup, but also some bug fixes, for win32/Path.cpp 
llvm-svn: 19202
 2004-12-31 19:01:08 +00:00
Reid Spencer
7b4b2407c1 Fix a compilation error for the case where mallinfo() is not available. 
llvm-svn: 19201
 2004-12-31 05:53:27 +00:00
Jeff Cohen
01422b3799 Get rid of those nasty tabs... 
llvm-svn: 19199
 2004-12-31 05:07:26 +00:00
Jeff Cohen
82a2c68071 Bring win32/Path.cpp up to date with respect to Unix/Path.cpp 
llvm-svn: 19198
 2004-12-31 04:39:07 +00:00
Jeff Cohen
89e7c7553c Fix MINGW compilation errors 
llvm-svn: 19190
 2004-12-30 03:02:31 +00:00
Chris Lattner
b49dd5c526 Fix PR491 and testcase Transforms/DeadStoreElimination/2004-12-28-PartialStore.ll 
llvm-svn: 19180
 2004-12-29 04:36:02 +00:00
Chris Lattner
37b9eef884 Fix PR490 
Fix testcase CodeGen/CBackend/2004-12-28-LogicalConstantExprs.ll

llvm-svn: 19176
 2004-12-29 04:00:09 +00:00
Reid Spencer
03a53912a7 Remove potential platform portability issue with size of "int". 
llvm-svn: 19172
 2004-12-29 01:20:24 +00:00
Reid Spencer
298690bde2 Fix a bug that made the nightly tester *really* slow. During changes for 
portability, the --track-space option was inadvertently ignored. This patch
fixes that so that sys::Process::GetMallocUsage() is only invoked if the
--track-spaces option is given. Apparently the mallinfo() call that
GetMallocUsage() uses is *very* slow, especially when processing very large
modules like projects/llvm-test/MultiSource/Applications/kimwitu++.

llvm-svn: 19163
 2004-12-27 08:03:04 +00:00
Reid Spencer
1c90f8199e For PR351: 
* Ensure #includes are wrapped with appropriate HAVE_ guards
* Account for variations in time.h and sys/time.h inclusion.
* Add macros for getting wait(2) exit status correctly (per autoconf sugg.)
* Implement ThrowErrno in terms of strerror_r, strerror or none based on
  what is available on the platform.

llvm-svn: 19161
 2004-12-27 06:17:50 +00:00
Reid Spencer
73adbe7c2d For PR351: 
* Remove redundant #includes that are now in Unix.h

llvm-svn: 19160
 2004-12-27 06:17:39 +00:00
Reid Spencer
b454405d4a For PR351: 
* Move implementation of sys::PreventCoreFiles function to this file from
  the now defunct SysConfig abstraction.

llvm-svn: 19159
 2004-12-27 06:17:27 +00:00
Reid Spencer
4d34db1fe6 For PR351: 
* Ensure #includes are wrapped with appropriate HAVE_ guards
* Ensure variations in "dirent" structure are accounted for.

llvm-svn: 19158
 2004-12-27 06:17:15 +00:00
Reid Spencer
537353c09e For PR351: 
* Ensure #includes are wrapped with appropriate HAVE_ guards
* Consolidate implementation from operating system specific directory.

llvm-svn: 19157
 2004-12-27 06:17:03 +00:00
Reid Spencer
7f7fd13285 For PR351: 
* Ensure #includes are wrapped with appropriate HAVE_ guards

llvm-svn: 19156
 2004-12-27 06:16:52 +00:00
Reid Spencer
3d53c8b8aa For PR351: 
* Consolidate implementation for Unix systems into Unix/TimeValue.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19155
 2004-12-27 06:16:38 +00:00
Reid Spencer
adaad82e3a For PR351: 
* Consolidate implementation for Unix systems into Unix/Program.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19154
 2004-12-27 06:16:25 +00:00
Reid Spencer
62ed25388e For PR351: 
* Consolidate implementation for Unix systems into Unix/Signals.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19153
 2004-12-27 06:16:11 +00:00
Reid Spencer
38ecc1456a For PR351: 
* Consolidate implementation for Unix systems into Unix/Memory.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19152
 2004-12-27 06:15:57 +00:00
Reid Spencer
75d13b2e49 For PR351: 
* Consolidate implementation for Unix systems into Unix/MappedFile.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19151
 2004-12-27 06:15:43 +00:00
Reid Spencer
ae90b4a287 For PR351: 
* Consolidate implementation for Unix systems into Unix/Process.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19150
 2004-12-27 06:15:29 +00:00
Reid Spencer
7da5e588d4 For PR351: 
SysConf abstraction was pointless because it had a single function in it that
pertained only to the current process. So merge it into the Process abstraction
and remove the files completely.

llvm-svn: 19149
 2004-12-27 06:15:14 +00:00
Jeff Cohen
1f2d9696bf mingw doesn't support the official debug API. 
Old versions of the C runtime somehow get loaded into the process.  Make
sure they aren't searched for symbols.

llvm-svn: 19141
 2004-12-25 04:50:17 +00:00
Jeff Cohen
724ac32c61 Get VC++ building again 
llvm-svn: 19140
 2004-12-24 16:26:47 +00:00
Jeff Cohen
f3543c32a5 Eliminate use of ltdl.c when doing a VC++ build. Because libtool isn't used, 
ltdl's LGPL license would infect all of LLVM.

llvm-svn: 19137
 2004-12-24 07:57:09 +00:00
Reid Spencer
870c0e8f4f For PR351: 
Merge implementations of isValid and GetTemporaryDirectory into this file. There
is not any point having the operating system specific files for such little
variation between the Unix family of systems.

llvm-svn: 19134
 2004-12-24 06:29:42 +00:00
Reid Spencer
d1a0baa811 For PR351: 
This implementation is no longer needed, its been merged to Unix/Path.cpp since
there is such little variation between the platforms.

llvm-svn: 19133
 2004-12-24 06:29:28 +00:00
Reid Spencer
9cf9b6fe85 For PR351: 
Use the LLVM_ON_UNIX and LLVM_ON_WIN32 #defines to include the implementation
instead of relying upon the "platform" link

llvm-svn: 19132
 2004-12-24 06:29:17 +00:00
Reid Spencer
b1eb2641f3 Resurrect this file. 
llvm-svn: 19130
 2004-12-24 06:03:31 +00:00
Reid Spencer
c2e45f4610 Remove these files as they are not being included any more. DynamicLibrary 
is now implemented via ltdl.cpp which has its own way of dealing with
the different platforms.

llvm-svn: 19129
 2004-12-24 03:59:46 +00:00
Jeff Cohen
916051a9fd Fix VC++ compilation error 
llvm-svn: 19124
 2004-12-24 02:38:34 +00:00
Reid Spencer
5885a388b8 Put CopyFile in the sys namespace. 
llvm-svn: 19122
 2004-12-23 22:14:32 +00:00
Misha Brukman
0424fc40fa Wrap at 80 cols 
llvm-svn: 19121
 2004-12-23 21:17:41 +00:00
Reid Spencer
d536e95035 Correct the comments and file header. 
llvm-svn: 19120
 2004-12-23 21:16:46 +00:00
Reid Spencer
351a3efea1 Try to speed up gccld hot spot in BasicVN::getEqualNumberNodes by making 
a function call at the core of the loop inline and removing unused
stack variables from an often called function. This doesn't improve things
much, the real saving will be by reducing the number of calls to this
function (100K+ when linking kimwitu++).

llvm-svn: 19119
 2004-12-23 21:13:26 +00:00
Jeff Cohen
9ffd97b636 Patch to fix mingw compilation problem contributed by Henrik. 
llvm-svn: 19112
 2004-12-23 03:44:40 +00:00
Reid Spencer
e50d61c98b For PR351: 
Include local FDHandle.h file now that FDHandle is local to this library
and not in lib/System/FileUtilities.

llvm-svn: 19108
 2004-12-22 10:25:06 +00:00
Reid Spencer
2d153e2328 For PR351: 
FDHandle class (non-portable) moved here from lib/Support/FileUtilities

llvm-svn: 19107
 2004-12-22 10:24:55 +00:00
Reid Spencer
9d949160f5 For PR351: 
Move non-portable FDHandle class to its only user: lib/Debugger

llvm-svn: 19106
 2004-12-22 10:24:43 +00:00
Reid Spencer
44d96443fe For PR351: 
Remove unix specific code (use of errno and read) from the reader.
Thanks to Jeff Cohen for pointing this out.

llvm-svn: 19081
 2004-12-21 07:51:33 +00:00
Reid Spencer
17e4392807 Put the CopyFile function explicitly in the sys namespace. 
llvm-svn: 19079
 2004-12-21 03:27:08 +00:00
Reid Spencer
85557cf915 Include <cassert> for Cygwin. 
llvm-svn: 19077
 2004-12-21 00:22:51 +00:00
Reid Spencer
6324bbcd91 Cygwin doesn't like .. through a link, so drop the .. 
llvm-svn: 19076
 2004-12-20 22:21:41 +00:00
Reid Spencer
cf546aca4e Fix a bug where system time always equals user time 
llvm-svn: 19075
 2004-12-20 21:44:27 +00:00
Reid Spencer
76147edb0c Implement GetTimeUsage correctly. 
llvm-svn: 19074
 2004-12-20 21:43:33 +00:00
Reid Spencer
b9376dde14 Provide a getrusage based implementation of GetTotalMemoryUsage and use 
the ru_maxrss field as an approximation.

llvm-svn: 19072
 2004-12-20 16:33:37 +00:00
Reid Spencer
c34325ae5f Consistently use the same #if style. Also, fix a bug testing for sbrk(3) 
llvm-svn: 19071
 2004-12-20 16:06:44 +00:00
Reid Spencer
31f9f29707 Remove unnecessary #includes. 
llvm-svn: 19070
 2004-12-20 06:38:12 +00:00
Reid Spencer
5cc7e5cbd5 Be double sure about including sys/stat.h by wrapping the inclusion in 
an "#if defined(HAVE_SYS_STAT_H)".

llvm-svn: 19069
 2004-12-20 06:34:02 +00:00
Reid Spencer
f9693c67ae Remove the #include of llvm/Config/unistd.h as it is no longer needed. 
llvm-svn: 19067
 2004-12-20 04:52:04 +00:00
Reid Spencer
68f4d407fc Remove un-needed #includes. 
llvm-svn: 19061
 2004-12-20 04:15:44 +00:00
Reid Spencer
c2e70a2a41 Put some header files back that Win32 needs. 
llvm-svn: 19058
 2004-12-20 03:59:23 +00:00
Jeff Cohen
a61823c49e Keep up with lib/System changes 
llvm-svn: 19057
 2004-12-20 03:24:56 +00:00
Jeff Cohen
61fe69a426 Fix problems uncovered by VC++ (first time compiled by VC++) 
llvm-svn: 19056
 2004-12-20 03:23:46 +00:00
Reid Spencer
3f8be49b9e For PR351: 
* Implement GetMallocUsage to get usage of malloc heap
* Implement GetMemoryUsage to get total memory usage of process
* Implement GetTimeUsage to get elapsed/user/system time

llvm-svn: 19055
 2004-12-20 00:59:28 +00:00
Reid Spencer
82588cf403 For PR351: 
No need for Unix/SUS/Process.cpp any more, just ifdef it.

llvm-svn: 19054
 2004-12-20 00:59:16 +00:00
Reid Spencer
8b62c3dfae For PR351: 
* Move system dependent implementation out of this file.
* Make implementation use sys::Process::GetMallocUsage where necessary.
* Make implementation use sys::Process::GetTimeUsage where necessary.

llvm-svn: 19053
 2004-12-20 00:59:04 +00:00
Misha Brukman
272c37ff7b * Use "" for LLVM include files, not <> 
* llvm/Config/alloca.h already #includes config.h
* Minor readability/stylistic changes

llvm-svn: 19048
 2004-12-20 00:16:38 +00:00
Misha Brukman
247ee9ee4a Use <> for system #include files 
llvm-svn: 19046
 2004-12-19 19:27:11 +00:00
Brian Gaeke
63c01d5387 Make references to 'struct sigaction' compile under Solaris. 
llvm-svn: 19045
 2004-12-19 18:58:11 +00:00
Reid Spencer
e377d1308e For PR351: 
Move the functionality of RunProgramWithTimeout into the ExecuteAndWait
function: support a timeout and I/O redirects

llvm-svn: 19043
 2004-12-19 18:00:44 +00:00
Reid Spencer
5eba1617bf For PR351: 
Add a needed include.

llvm-svn: 19042
 2004-12-19 18:00:32 +00:00
Reid Spencer
5b729e8d2d For PR351: 
* Pass sys::Path instead of std::string for paths
* Correct the types of arguments passed to RunProgramWithTimeout due to its
  interface using sys::Path instead of std::string
* Replace "/dev/null" (not portable) with empty string which
  sys::Program::ExecuteAndWait recognizes as "redirect to bit bucket"

llvm-svn: 19041
 2004-12-19 18:00:21 +00:00
Reid Spencer
d1b74b9f5b For PR351: 
* Remove unneeded header files.
* Move RedirectFD static function to lib/System/Unix/Program.cpp
* Delete RunProgramWithTimeout, now implemented by
  sys::Program::ExecuteAndWait. RunProgramWithTimeout is now a convenience func.

llvm-svn: 19040
 2004-12-19 18:00:09 +00:00
Jeff Cohen
f6a4f3f347 Fix win32 breakage 
llvm-svn: 19028
 2004-12-18 06:42:15 +00:00
Chris Lattner
3b78513843 Remove unused enum value 
llvm-svn: 19024
 2004-12-17 22:41:46 +00:00
Reid Spencer
96bd09da4a Move the #include of sys/stat.h inside the linux "hack" for the stat 
family of functions so it gets noticed if we ever remove this.

llvm-svn: 19022
 2004-12-17 19:09:16 +00:00
Chris Lattner
5f28e9fafc Remove unused #include 
llvm-svn: 19021
 2004-12-17 19:07:04 +00:00
Reid Spencer
bf452c05e9 Only #include sys/stat.h if we're on linux where we have the PR274 problem. 
llvm-svn: 19020
 2004-12-17 18:56:29 +00:00
Chris Lattner
a2afb3775e Actually overload the virtual method. This fixes 
Regression/Analysis/GlobalsModRef/purecse.ll.  Isn't this what the
-Woverload-whatever flag would warn about :)

llvm-svn: 19018
 2004-12-17 17:12:24 +00:00
Chris Lattner
d11ba51208 Change the sentinal 
llvm-svn: 19007
 2004-12-17 00:46:51 +00:00
Chris Lattner
59d0c02d2b Create a stack slot for the return address lazily instead of eagerly. This 
save small amounts of time for functions that don't call llvm.returnaddress
or llvm.frameaddress (which is almost all functions).

llvm-svn: 19006
 2004-12-17 00:07:46 +00:00
Tanya Lattner
3b44c9a485 Chris is a pain ;) Removing reassociate. 
llvm-svn: 19005
 2004-12-16 23:16:16 +00:00
Tanya Lattner
93142a02ee Removing commented out lines. 
llvm-svn: 19004
 2004-12-16 23:13:16 +00:00
Tanya Lattner
c537a19bad Removed LICM and GCSE. 
llvm-svn: 19003
 2004-12-16 23:07:36 +00:00
Reid Spencer
df60327fbe For PR351: 
* Make the OutputC and OutputAsm functions work with sys::Path for the output
  file name instead of using std::string.
* Get rid of extraneous "toString" calls.
* Change "removeFile" to sys::Path::destroyFile()

llvm-svn: 19000
 2004-12-16 23:01:34 +00:00
Reid Spencer
391b891e42 For PR351: 
* Remove the "removeFile" function, now implemented by the
  sys::Path::destroyFile method.
* Make the FileRemove work with a sys::Path instead of a std::string

llvm-svn: 18999
 2004-12-16 23:00:05 +00:00
Chris Lattner
50411edddf Remove dead #include 
llvm-svn: 18994
 2004-12-16 19:32:38 +00:00
Reid Spencer
8b758b07c4 Fix a compile error. config.h is now needed because DataTypes.h doesn't 
include it any more.

llvm-svn: 18993
 2004-12-16 19:19:24 +00:00
Chris Lattner
4b1d58bf4b Adjust to changes in asmwriter filenames 
llvm-svn: 18987
 2004-12-16 17:33:24 +00:00
Chris Lattner
cea3ae9792 Specify all of the targets built. 
llvm-svn: 18985
 2004-12-16 17:26:44 +00:00
Chris Lattner
dc59826592 Use the rules in Makefile.rules to build SparcV9GenCodeEmitter.inc instead 
of custom rules.

llvm-svn: 18984
 2004-12-16 16:47:56 +00:00
Chris Lattner
d311c2587d Fix header 
llvm-svn: 18983
 2004-12-16 16:47:03 +00:00
Chris Lattner
a0561d43b2 Factor out common .td file chunks. 
llvm-svn: 18982
 2004-12-16 16:31:57 +00:00
Jeff Cohen
21f0b01731 Expository comment submitted by Henrik Bach 
llvm-svn: 18976
 2004-12-16 04:06:56 +00:00
Chris Lattner
cf5cd542d4 Fix PR485, instead of emitting zero sized arrays, emit arrays of size 1. 
llvm-svn: 18974
 2004-12-15 23:13:15 +00:00
Reid Spencer
43693c5432 Change the signatures of the destroyFile and destroyDirectory methods to 
const because they affect the file system, not the Path object.

llvm-svn: 18973
 2004-12-15 23:02:10 +00:00
Reid Spencer
c5c37ed49f Remove the CFE's lib directory from the bytecode path because LLVM should 
be agnostic to the needs of any specific FE.

llvm-svn: 18969
 2004-12-15 22:22:51 +00:00
Reid Spencer
a2d326c825 Remove automatic insertion of CFE's lib directory into the bytecode path 
because LLVM should be agnostic to the needs of specific front ends.

llvm-svn: 18968
 2004-12-15 22:21:42 +00:00
Chris Lattner
4faf86336e Add a verifier assertion 
llvm-svn: 18965
 2004-12-15 20:23:49 +00:00
Chris Lattner
be18a7e20a Eliminate a virtual method call 
llvm-svn: 18964
 2004-12-15 18:14:04 +00:00
Chris Lattner
6fe0ea70e2 Fix a bug in -no-aa that caused two DSGraph tests to XPASS. 
llvm-svn: 18962
 2004-12-15 17:13:24 +00:00
Reid Spencer
9d3a8ad836 Fix a file overwrite bug in llvm-ar introduced by changes to 
createTemporaryFile semantics where it doesn't create a fully unique name
if the basename doesn't exist. This functionality is now optionally
provided by the boolean reuse_current parameter to createTemporaryFile and
makeUnique. The default values differ because of the way these functions
are used in LLVM.

llvm-svn: 18961
 2004-12-15 08:32:45 +00:00
Chris Lattner
3a260f9757 Adjust to new interfaces 
llvm-svn: 18958
 2004-12-15 07:22:25 +00:00
Chris Lattner
8139749984 Adjust to new alias analysis interfaces 
llvm-svn: 18957
 2004-12-15 07:22:13 +00:00
Chris Lattner
558a640b3c Move virtual method call out of loop 
llvm-svn: 18955
 2004-12-15 07:04:32 +00:00
Jeff Cohen
a78192f9b7 Make Win32 TimeValue::toString() re-entrant and work with mingw 
llvm-svn: 18954
 2004-12-15 04:28:44 +00:00
Jeff Cohen
9fd13f9f81 Fix VC++ compilation errors 
llvm-svn: 18953
 2004-12-15 04:08:15 +00:00
Reid Spencer
ffc90507a4 For PR351: 
* Remove #inclusion of FileUtilities.h, not needed any more.
* Convert getUniqueFilename -> sys::Pat::makeUnique()

llvm-svn: 18948
 2004-12-15 01:51:56 +00:00
Reid Spencer
8fe73b4d39 For PR351: 
* Fix implementation and documentation about LLVMGCCDIR/bytecode-libs
* Add the makeUnique method, replacement for getUniqueFilename in Support.
* Add the sys::CopyFile function, replacement for CopyFile in Support.
* Move GetLLVMConfigDir() into generic code area since its generic.

llvm-svn: 18947
 2004-12-15 01:50:13 +00:00
Reid Spencer
c13933032d For PR351: 
Remove getUniqueFilename and CopyFile. These are now implemented by
sys::Path::makeUnique and sys::CopyFile, respectively.

llvm-svn: 18946
 2004-12-15 01:46:54 +00:00
Chris Lattner
763e852e7a Constant exprs are not efficiently negatable in practice. This disables 
turning X - (constantexpr) into X + (-constantexpr) among other things.

llvm-svn: 18935
 2004-12-14 20:08:06 +00:00
Reid Spencer
006364762d Add the getMagicNumber method. 
Patch contributed by Henrik Bach. Thanks Henrik!

llvm-svn: 18933
 2004-12-14 18:42:13 +00:00
Brian Gaeke
1b6a79c6d5 The mystery of Olden/tsp solved, and more opportunities for speedup. 
llvm-svn: 18932
 2004-12-14 09:10:10 +00:00
Brian Gaeke
83dcf14697 Get rid of shifts by zero in most cases. 
llvm-svn: 18931
 2004-12-14 08:21:02 +00:00
Jeff Cohen
cc0adb0271 Implement Win32 Path::getStatusInfo(), TimeValue::toString() 
llvm-svn: 18930
 2004-12-14 05:26:43 +00:00
Reid Spencer
4dec8e9e27 For PR351: 
Implement the new environment pointer for ExecuteAndWait

llvm-svn: 18928
 2004-12-14 04:18:51 +00:00
Reid Spencer
734177e5f0 For PR351: 
* Remove the ExecWait function. This is now in sys::Program::ExecuteAndWait

llvm-svn: 18927
 2004-12-14 04:18:15 +00:00
Reid Spencer
9763c42a40 Revert the last patch as it causes a static destruction ordering problem. 
llvm-svn: 18925
 2004-12-14 03:55:21 +00:00
Reid Spencer
09422bf438 For PR351: 
Adjust to changes in the interface of FindExecutable, getting ToolRunner
ready for bigger things to come.

llvm-svn: 18919
 2004-12-13 23:43:44 +00:00
Reid Spencer
ce8f14e07e For PR351: 
* Remove isExecutable as its now implemented by sys::Path::executable
* Make FindExecutable a thin veneer over sys::Program::FindProgramByName.

llvm-svn: 18918
 2004-12-13 23:41:37 +00:00
Chris Lattner
0e9a9d2098 When generating code for X86 targets, make sure the fp control word is set 
to 64-bit precision, not 80 bits.

llvm-svn: 18915
 2004-12-13 21:52:52 +00:00
Brian Gaeke
ca2d45f5c1 Fix link error in PPC optimized build of 'opt'. 
llvm-svn: 18913
 2004-12-13 21:28:39 +00:00
Reid Spencer
3b88b3427b For PR351: 
Remove AllocateRWXMemory as it is not used any more in LLVM. The function
has been replaced with sys::Memory::AllocateRWX several months ago.

llvm-svn: 18912
 2004-12-13 20:14:30 +00:00
Chris Lattner
3fe2a6aa6a Add some notes 
llvm-svn: 18911
 2004-12-13 20:13:10 +00:00
Reid Spencer
df7f779d7d For PR351: 
Remove the MakeFileReadable and MakeFileExecutable functions which are no
longer present in LLVM. They have been replaced with the sys::Path methods
makeReadable and makeExecutable, respectively.

llvm-svn: 18910
 2004-12-13 20:08:14 +00:00
Chris Lattner
318f80ae39 Get rid of getSizeOf, using ConstantExpr::getSizeOf instead. 
do not insert a prototype for malloc of: void* malloc(uint): on 64-bit u
targets this is not correct.  Instead of prototype it as void *malloc(...),
and pass the correct intptr_t through the "...".

Finally, fix Regression/CodeGen/SparcV9/2004-12-13-MallocCrash.ll, by not
forming constantexpr casts from pointer to uint.

llvm-svn: 18908
 2004-12-13 20:00:02 +00:00
Reid Spencer
5a18b63eb5 For PR351: 
Implement three new functions to allow setting access/permission bits on
the file referenced by a path. The makeReadable and makeExecutable methods
replace the FileUtilities MakeFileReadable and MakeFileExecutable
functions. The makeWritable function is new and provided for consistency
since Path has a writable() method.

llvm-svn: 18907
 2004-12-13 19:59:50 +00:00
Chris Lattner
79c3a57af7 Change this method to return ulong, not uint, for 64-bit targets. 
llvm-svn: 18906
 2004-12-13 19:48:51 +00:00
Reid Spencer
8fc3e4392e Genericize implementation of GetDLLSuffix now that we have LTDL_SHLIB_EXT 
available.

llvm-svn: 18904
 2004-12-13 18:41:28 +00:00
Reid Spencer
7dfa723d34 For PR351: 
The ReadFileIntoAddressSpace and UnmapFileFromAddressSpace functions are no
longer used by LLVM. Remove them. Replacement functionality for both
functions is now encapsulated in the sys::MappedFile class.

llvm-svn: 18903
 2004-12-13 18:28:59 +00:00
Reid Spencer
1c72c28b2b For PR351: 
Use sys::MappedFile instead of ReadFileIntoAddressSpace and
UnmapFileFromAddressSpace. sys::MappedFile has the nice property that it
cleans up after itself so exception handling can be removed.

llvm-svn: 18902
 2004-12-13 18:25:27 +00:00
Chris Lattner
4136428410 Set the rounding mode for the X86 FPU to 64-bits instead of 80-bits. We 
don't support long double anyway, and this gives us FP results closer to
other targets.

This also speeds up 179.art from 41.4s to 18.32s, by eliminating a problem
with extra precision that causes an FP == comparison to fail (leading to
extra loop iterations).

llvm-svn: 18895
 2004-12-13 17:23:11 +00:00
Reid Spencer
dd50ab43d0 For PR351: \ 
The getFileTimestamp and getFileSize functions have been removed from  \
FileUtilities.{h,cpp}. They are replaced by Path::getTimestamp and  \
Path::getSize,respectively.

llvm-svn: 18892
 2004-12-13 17:01:53 +00:00
Reid Spencer
663dc7fb78 Get rid of some leaks found by VC leak detector. 
Patch contributed by Morten Ofsted.

llvm-svn: 18889
 2004-12-13 16:04:04 +00:00
Reid Spencer
e98ef91f76 Fix a bug where "." or any single character file name doesn't get the 
terminating / when setDirectory is called.

llvm-svn: 18886
 2004-12-13 07:51:52 +00:00
Reid Spencer
2062d248c7 Remove an always false clause from an if statement. 
llvm-svn: 18885
 2004-12-13 07:51:07 +00:00
Alkis Evlogimenos
72ddb084c4 Fix a bug where directory names of length one or less where not set 
properly (examples: "", ".", "a").

llvm-svn: 18883
 2004-12-13 07:41:35 +00:00
Reid Spencer
24cf14cef6 * Add a std::ostream inserter for sys::Path 
* Correct the std::string constructor to take a const reference.

llvm-svn: 18877
 2004-12-13 06:57:15 +00:00
Jeff Cohen
b2b5f8f969 Fix recent breakage of win32 build 
llvm-svn: 18876
 2004-12-13 06:26:35 +00:00
Reid Spencer
cc77c7abb5 * Fix header block. 
* Fix loop style per standards
* Don't create a new Module when the Linker's module is released.
* Add/fix function comments.

llvm-svn: 18871
 2004-12-13 03:50:50 +00:00
Reid Spencer
7df034022a Add missing space in a comment. 
llvm-svn: 18870
 2004-12-13 03:23:13 +00:00
Reid Spencer
aaa17b8807 Make sure the Archive gets deleted if there's an error. 
llvm-svn: 18869
 2004-12-13 03:22:31 +00:00
Reid Spencer
57575286ec Fix header and function comments. 
llvm-svn: 18867
 2004-12-13 03:13:18 +00:00
Reid Spencer
18018b3967 Implement new functions per new interface 
llvm-svn: 18866
 2004-12-13 03:03:42 +00:00
Reid Spencer
dac49a55a1 For PR351: \ 
* Remove IsLibrary and GetLibraryPath, replaced by FindLibrary in ../Path.cpp \
* Implement GetSystemLibraryPaths and GetBytecodeLibraryPaths, instead of the \
  GetSystemLibraryPath1 and GetSystemLibraryPath2 methods

llvm-svn: 18862
 2004-12-13 03:00:51 +00:00
Reid Spencer
38992108f9 For PR351: \ 
* Move generic isArchive method here from Unix/Path.cpp \
* Implement isDynamicLibrary \
* Implement FindLibrary for Linker

llvm-svn: 18861
 2004-12-13 03:00:39 +00:00
Reid Spencer
ed05e1fa02 This file contains basic Linker facilities needed by all tools 
llvm-svn: 18860
 2004-12-13 03:00:28 +00:00
Reid Spencer
94a27a253c Make LinkModules a static member function 
llvm-svn: 18859
 2004-12-13 03:00:16 +00:00
Reid Spencer
24726c4a89 This file contains only the Linker's library linking support 
llvm-svn: 18858
 2004-12-13 03:00:04 +00:00
Reid Spencer
f10f056fe4 For PR351: \ 
* Remove redundant static function LinkOneLibrary. \
* Remove unneded #includes \
* Convert FileSupport usage to sys::Path instead

llvm-svn: 18857
 2004-12-13 02:59:52 +00:00
Reid Spencer
e7d544a97d This file contains only the Linker's file linking support 
llvm-svn: 18856
 2004-12-13 02:59:41 +00:00
Reid Spencer
9d9fc4e4ec For PR351: \ 
* Convert functions to Linker:: methods. \
* Remove unneeded #includes \
* Utilize sys::Path utilities not FileSupport utilities \
* Move File & Library linking functions to other source files

llvm-svn: 18855
 2004-12-13 02:59:29 +00:00
Reid Spencer
482ecf5595 For PR351: \ 
* Get file information from a MappedFile instance \
* Convert file type tests to sys::Path form

llvm-svn: 18854
 2004-12-13 02:59:15 +00:00
Reid Spencer
466ab53f35 Implement error handling in OpenAndLoad* functions so the Linker can handle it. 
llvm-svn: 18853
 2004-12-13 02:59:03 +00:00
Reid Spencer
1e51643433 Make the size() method const 
llvm-svn: 18852
 2004-12-13 02:58:51 +00:00
Reid Spencer
71746efbf5 For PR351:Remove the file type checking methods (now in sys::Path) 
llvm-svn: 18846
 2004-12-13 02:57:41 +00:00
Brian Gaeke
aa9f3851f7 Add V8 SPEC status. 
llvm-svn: 18844
 2004-12-13 00:27:35 +00:00
Chris Lattner
bc889ab3c7 Change indentation of a whole bunch of code, no real changes here. 
llvm-svn: 18843
 2004-12-12 23:49:37 +00:00
Chris Lattner
85776b0e99 More substantial simplifications and speedups. This makes ADCE about 20% faster 
in some cases.

llvm-svn: 18842
 2004-12-12 23:40:17 +00:00
Chris Lattner
deda69d473 More minor microoptimizations 
llvm-svn: 18841
 2004-12-12 22:44:30 +00:00
Chris Lattner
1629a92f18 Remove some more set operations 
llvm-svn: 18840
 2004-12-12 22:22:18 +00:00
Chris Lattner
a47e7e4093 Reduce number of set operations. 
llvm-svn: 18839
 2004-12-12 22:16:13 +00:00
Chris Lattner
2be8c4a870 Optimize div/rem + select combinations more. 
In particular, implement div.ll:test10 and rem.ll:test4.

llvm-svn: 18838
 2004-12-12 21:48:58 +00:00
Chris Lattner
9f0237ca85 Fix Regression/CodeGen/PowerPC/2004-12-12-ZeroSizeCommon.ll, and all programs 
when compiled with debug information.

llvm-svn: 18835
 2004-12-12 20:36:19 +00:00
Chris Lattner
dc33000e67 CSE calls to getTypeSize. 
llvm-svn: 18833
 2004-12-12 20:31:00 +00:00
Chris Lattner
0a2feabdc9 Properly implement copying of a global, fixing the 255.vortex & povray 
failures from last night.

llvm-svn: 18832
 2004-12-12 19:34:41 +00:00
Chris Lattner
9e7ce53b82 Simplify code and do not invalidate iterators. 
This fixes a crash compiling TimberWolfMC that was exposed due to recent
optimizer changes.

llvm-svn: 18831
 2004-12-12 18:23:20 +00:00
Chris Lattner
6131b06f73 Use the target triple to pick this target. 
llvm-svn: 18830
 2004-12-12 17:40:28 +00:00
Brian Gaeke
757a3aa9b9 Complete the list of MultiSource failures. 
llvm-svn: 18826
 2004-12-12 08:22:11 +00:00
Brian Gaeke
a440424596 hbd should be working now. 
llvm-svn: 18824
 2004-12-12 07:42:59 +00:00
Brian Gaeke
ee60e35a28 Finally enable the setcc-branch folding code. 
Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.

llvm-svn: 18823
 2004-12-12 07:42:58 +00:00
Brian Gaeke
09c4a78ece Add (currently disabled) code for canFoldSetCC 
llvm-svn: 18820
 2004-12-12 06:22:30 +00:00
Chris Lattner
97adae1fa4 Though the previous xform applies to literally dozens (hundreds?) of variables 
in SPEC, the subsequent optimziations that we are after don't play with
with FP values, so disable this xform for them.  Really we just don't want
stuff like:

double G;   (always 0 or 412312.312)
  = G;

turning into:

bool G_b;
  = G_b ? 412312.312 : 0;

We'd rather just do the load.

-Chris

llvm-svn: 18819
 2004-12-12 06:03:06 +00:00
Brian Gaeke
55c163e41e Add stubs for setcc-branch folding support. 
llvm-svn: 18818
 2004-12-12 06:01:26 +00:00
Chris Lattner
f125dc0e49 If a variable can only hold two values, and is not already a bool, shrink it 
down to actually BE a bool.  This allows simple value range propagation
stuff work harder, deleting comparisons in bzip2 in some hot loops.

This implements GlobalOpt/integer-bool.ll, which is the essence of the
loop condition distilled into a testcase.

llvm-svn: 18817
 2004-12-12 05:53:50 +00:00
Chris Lattner
02c04bbf45 If one side of and/or is known to be 0/-1, it doesn't matter 
if the other side is overdefined.

This allows us to fold conditions like:  if (X < Y || Y > Z) in some cases.

llvm-svn: 18807
 2004-12-11 23:15:19 +00:00
Brian Gaeke
5d213ad8c3 Print llvm code one function at a time. 
llvm-svn: 18805
 2004-12-11 22:17:07 +00:00
Chris Lattner
5ba315dbbe Check in the file I forgot last night, to solve all of the crashes in every 
test in the suite.  :(

llvm-svn: 18804
 2004-12-11 22:10:29 +00:00
Brian Gaeke
80831ad19a JIT should print LLVM each function before selecting instructions for it. 
llvm-svn: 18803
 2004-12-11 18:41:09 +00:00
Reid Spencer
e43fb31a1f Rename Path::get -> Path::toString 
llvm-svn: 18802
 2004-12-11 17:37:01 +00:00
Chris Lattner
59ce936426 Only cound if we actually made a change. 
llvm-svn: 18800
 2004-12-11 17:00:14 +00:00
Chris Lattner
8378361f0c The split bb is really the exit of the old function 
llvm-svn: 18799
 2004-12-11 16:59:54 +00:00
Chris Lattner
06bfa390f6 Two bug fixes: 
1. Actually increment the Statistic for the GV elim optzn
 2. When resolving undef branches, only resolve branches in executable blocks,
    avoiding marking a bunch of completely dead blocks live.  This has a big
    impact on the quality of the generated code.

With this patch, we positively rip up vortex, compiling Ut_MoveBytes to a
single memcpy call. In vortex we get this:

     12 ipsccp           - Number of globals found to be constant
    986 ipsccp           - Number of arguments constant propagated
   1378 ipsccp           - Number of basic blocks unreachable
   8919 ipsccp           - Number of instructions removed

llvm-svn: 18796
 2004-12-11 06:05:53 +00:00
Chris Lattner
5af0ef5c44 Do not delete the entry block to a function. 
llvm-svn: 18795
 2004-12-11 05:32:19 +00:00
Brian Gaeke
220fb4f8cd Bools are *also* not ints. Sigh. Furthermore, most of the TargetMachine 
ctor parameters can be defaulted.

Print the transformed llvm code input to the instruction selector
when -print-machineinstrs is on, just like V9.

llvm-svn: 18794
 2004-12-11 05:19:04 +00:00
Brian Gaeke
24ea5d3dd7 Look for many more moves to fold (previously, we only 
*or g0, x      add g0, x          recognized * as a move)
 or  x, g0     add  x, g0
 or  0, x      add  0, x
 or  x, 0      add  x, 0

llvm-svn: 18793
 2004-12-11 05:19:03 +00:00
Brian Gaeke
948a8145bf Make GEPs not suck so much: 
* Don't emit the Index * ElementSize multiply if Index is a constant.
* Use a shift, not a multiply, if ElementSize is 1/2/4/8.
* If ElementSize fits in the immediate field of SMUL, then put it there.

Fix a bug where struct offsets might be truncated (ConstantSInt::get is
now used instead of ConstantInt::get).

llvm-svn: 18792
 2004-12-11 05:19:02 +00:00
Brian Gaeke
e0643b792b Update lists of failing benchmarks, including info on which 
ones are failing in cbe.

llvm-svn: 18791
 2004-12-11 05:19:01 +00:00
Chris Lattner
943f94d2b3 Implement Transforms/SCCP/ipsccp-gvar.ll, by tracking values stored to 
non-address-taken global variables.

llvm-svn: 18790
 2004-12-11 05:15:59 +00:00
Chris Lattner
beeab3a124 Fix a bug where we could delete dead invoke instructions with uses. 
In functions where we fully constant prop the return value, replace all
ret instructions with 'ret undef'.

llvm-svn: 18786
 2004-12-11 02:53:57 +00:00
Reid Spencer
e2af9dc813 Path::get -> Path::toString 
llvm-svn: 18785
 2004-12-11 00:14:15 +00:00
Chris Lattner
d1d00e017b Implement SCCP/ipsccp-conditional.ll, by totally deleting dead blocks. 
llvm-svn: 18781
 2004-12-10 22:29:08 +00:00
Chris Lattner
5be2c2e299 Fix SCCP/2004-12-10-UndefBranchBug.ll 
llvm-svn: 18776
 2004-12-10 20:41:50 +00:00
Chris Lattner
3c31189583 Make sure to link the target-triple as well, so it ends up in the .llvm.bc file 
llvm-svn: 18774
 2004-12-10 20:26:15 +00:00
Chris Lattner
40e97884f6 Fix Regression/Transforms/SimplifyCFG/2004-12-10-SimplifyCFGCrash.ll, 
and the failure on make_dparser last night.

llvm-svn: 18766
 2004-12-10 17:42:31 +00:00
Brian Gaeke
dc916ae40f Move -lowerselect later in the chain; some select instructions were 
slipping through into the instruction selector, which can't deal with
them yet.

llvm-svn: 18758
 2004-12-10 08:39:30 +00:00
Brian Gaeke
7ec3883e1a Add the rest of the multiply instructions. 
llvm-svn: 18757
 2004-12-10 08:39:29 +00:00
Brian Gaeke
2a9ecc433f Support binary operations with immediates for <= cInt. 
llvm-svn: 18756
 2004-12-10 08:39:28 +00:00
Brian Gaeke
45f3af8d88 Update lists of failing benchmarks (except C++...something is the 
matter with my sparcv8 libstdc++.a) and to-do list.

llvm-svn: 18755
 2004-12-10 08:39:27 +00:00
Chris Lattner
ead42a768e This is the initial implementation of IPSCCP, as requested by Brian. 
This implements SCCP/ipsccp-basic.ll, rips apart Olden/mst (as described in
PR415), and does other nice things.

There is still more to come with this, but it's a start.

llvm-svn: 18752
 2004-12-10 08:02:06 +00:00
Brian Gaeke
1da3720799 Emit correct prototype for __builtin_alloca on V8. 
llvm-svn: 18745
 2004-12-10 05:44:45 +00:00
Alkis Evlogimenos
9b02192468 Fix writer to properly quote label names when they don't contain 
simple characters.

llvm-svn: 18744
 2004-12-10 05:41:10 +00:00
Alkis Evlogimenos
189fdf11db Do not allow empty label names. 
llvm-svn: 18743
 2004-12-10 05:40:19 +00:00
Chris Lattner
e0936a0bd3 Implement test/Feature/escaped_label.ll 
llvm-svn: 18741
 2004-12-10 05:27:29 +00:00
Brian Gaeke
91cf4fe1ca Add SparcV8 target back into the build 
llvm-svn: 18738
 2004-12-10 04:54:21 +00:00