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7947 Commits

Author SHA1 Message Date
Brian Gaeke
65540b3e58 Correct type of accessor functions. 
llvm-svn: 16621
 2004-09-30 20:14:18 +00:00
Brian Gaeke
90a286872c Namespacify. Add accessor function. 
llvm-svn: 16620
 2004-09-30 20:14:07 +00:00
Brian Gaeke
c667e351ed I think this will handle double args. 
llvm-svn: 16618
 2004-09-30 19:44:32 +00:00
Misha Brukman
8a43086705 That should actually be __MING, not __MINGW. 
llvm-svn: 16617
 2004-09-30 18:28:07 +00:00
Misha Brukman
549b3533be Check for __MINGW define instead of __MINGW_H, patch by Henrik Bach. 
llvm-svn: 16615
 2004-09-30 18:24:58 +00:00
Chris Lattner
db2a0987cc Use more efficient map operations. Fix a bug that would affect hypothetical 
targets that supported multiple memory operands.

llvm-svn: 16614
 2004-09-30 16:35:08 +00:00
Chris Lattner
8d8b8b05bd There is no need to call MachineInstr::print directly, just send the MI& to an ostream. 
llvm-svn: 16613
 2004-09-30 16:10:45 +00:00
Chris Lattner
bb425800f5 * Wrap some comments to 80 cols 
* Add const_iterator stuff
* Add a print method, which means that I can now call dump() from the
  debugger.

llvm-svn: 16612
 2004-09-30 15:59:17 +00:00
Brian Gaeke
0d4d060dbd Mark the instructions that have delay slots with the hasDelaySlot flag. 
Add some comments.

llvm-svn: 16611
 2004-09-30 04:04:48 +00:00
Brian Gaeke
738005408e Use TargetMachine::hasDelaySlot() instead of our old switch statement 
to find instrs that have delay slots.

llvm-svn: 16610
 2004-09-30 04:04:47 +00:00
Chris Lattner
168a4380d9 Simplify the logic in the simple spiller and capitalize some variables 
llvm-svn: 16609
 2004-09-30 02:59:33 +00:00
Chris Lattner
1f61bfb971 Switch from defaulting to the 'local' spiller to the 'simple' spiller. The 
two spillers produce perfectly identical code (at least on povray and eon),
but the simple spiller is substantially faster than the local spiller. Once
the local spiller is improved, we can switch back.

Switching cuts 5.2% off of the llc time for povray (about 1.3s).

llvm-svn: 16608
 2004-09-30 02:40:06 +00:00
Chris Lattner
d716b5739c Don't use a densemap for keeping track of which vregs are already loaded, just 
use a simple vector.  This speeds up -spiller=simple from taking 22s to taking
.1s on povray (debug build).  This change does not modify the generated code.

llvm-svn: 16607
 2004-09-30 02:33:48 +00:00
Chris Lattner
d27ff8035e Use longer and more explicit names for instance vars (particularly important 
data structures).  Fix the print method to send to the right ostream, not
always cerr.  Delete typedefs that are only used once.

llvm-svn: 16606
 2004-09-30 02:15:18 +00:00
Chris Lattner
962d398430 Free the VirtRegMap at the end of MachineFunction processing instead of at 
the beginning of processing the next one.

llvm-svn: 16605
 2004-09-30 02:02:33 +00:00
Chris Lattner
418207045d Reindent code, improve comments, move huge nested methods out of classes, 
prune #includes, add print/dump methods, etc.  No functionality changes.

llvm-svn: 16604
 2004-09-30 01:54:45 +00:00
Chris Lattner
af68e9a012 Disable the 'WARNING: Found global types that are not compatible' warning 
that always prints when linking programs to libstdc++ :(

llvm-svn: 16603
 2004-09-30 00:12:29 +00:00
Misha Brukman
7c87c6b215 Change the #ifdefs to allow compilation with a V8 compiler, but the JIT still 
won't work if not compiled in V9 mode, currently by GCC only, because Sun's
system compiler does not tell us if it's a V8 or V9 system.

llvm-svn: 16602
 2004-09-29 23:01:17 +00:00
Chris Lattner
8341306cba Hrm, debugging printouts do not need to be in here 
llvm-svn: 16598
 2004-09-29 21:21:14 +00:00
Chris Lattner
7af052f5c8 Make sure to check select instructions for generic instruction properties 
llvm-svn: 16597
 2004-09-29 21:19:28 +00:00
Brian Gaeke
ee2dab29f9 Update list of shootout programs that should be working. 
llvm-svn: 16595
 2004-09-29 20:45:06 +00:00
Brian Gaeke
d4c38d8c4b Tell the target description that calls clobber registers O0...O5. 
llvm-svn: 16594
 2004-09-29 20:45:05 +00:00
Chris Lattner
da5c635143 Don't use DominatorSet::dominates for intra-block instruction dom checks. 
This method is linear time in the size of the basic block, which is very
bad for large basic blocks.  On the Assembler/2004-09-29-VerifierIsReallySlow.llx
testcase, the verifier changes from taking 50s to 0.23s with this patch.

llvm-svn: 16593
 2004-09-29 20:07:45 +00:00
Brian Gaeke
5bca3b8e5f FITOD is spelled "fitod", not "fitos". Ouch. 
llvm-svn: 16591
 2004-09-29 19:59:07 +00:00
Brian Gaeke
e9aabee09d Don't use .quad to output double constants. The assembler must have a bug or 
something, because the wrong bit patterns get output.

llvm-svn: 16590
 2004-09-29 19:59:06 +00:00
Chris Lattner
79ceb6ba53 * Pull range optimization code out into new InsertRangeTest function. 
* SubOne/AddOne functions always return ConstantInt, declare them as such
* Pull code for handling setcc X, cst, where cst is at the end of the range,
  or cc is LE or GE up earlier in visitSetCondInst.  This reduces #iterations
  in some cases.
* Fold: (div X, C1) op C2 -> range check, implementing div.ll:test6 - test9.

llvm-svn: 16588
 2004-09-29 17:40:11 +00:00
Brian Gaeke
b8237dfbb9 Recognize FpMOVD as a move. 
llvm-svn: 16586
 2004-09-29 16:45:47 +00:00
Chris Lattner
778a49acfd Do not insert trivially dead select instructions, which allows us to 
potentially fold more in one pass.

llvm-svn: 16583
 2004-09-29 05:43:32 +00:00
Chris Lattner
572652718c Fold binary expressions and casts into PHI nodes that have all constant inputs. 
This takes something like this:

%A = phi int [ 3, %cond_false.0 ], [ 2, %endif.0.i ], [ 2, %endif.1.i ]
%B = div int %tmp.243, 4

and turns it into:

%A = phi int [ 3/4, %cond_false.0 ], [ 2/4, %endif.0.i ], [ 2/4, %endif.1.i ]

which is later simplified (in this case) into %A = 0.

This triggers thousands of times in spec, for example, 269 times in 176.gcc.

This is tested by InstCombine/add.ll:test23 and set.ll:test18.

llvm-svn: 16582
 2004-09-29 05:07:12 +00:00
Nate Begeman
65376f660e Generate better code by being far less clever when it comes to the select instruction. Don't create overlapping register lifetimes 
llvm-svn: 16580
 2004-09-29 05:00:31 +00:00
Brian Gaeke
25154c9580 add results 
llvm-svn: 16579
 2004-09-29 03:48:55 +00:00
Nate Begeman
a8b079e16a improve Type::BoolTy codegen by eliminating unnecessary clears and sign extends 
llvm-svn: 16578
 2004-09-29 03:45:33 +00:00
Brian Gaeke
bad755c1d1 Simplify copyConstantToRegister() for longs, using a pair of recursive calls. 
Copy constant-pool entries' addresses into registers before loading out of them,
to avoid errors from the assembler.
Handle loading call args past the 6th one off the stack.
Add IMPLICIT_DEF pseudo-instrs for double and long arguments passed in register
pairs.
Use FpMOVD to copy doubles around instead of the horrible store-load thing we
were doing before.
Handle 'ret double' and 'ret long'.
Fix a bug in handling 'and/or/xor long'.

llvm-svn: 16577
 2004-09-29 03:34:41 +00:00
Brian Gaeke
279e98a3b4 Fix bug recognizing moves: isMoveInstr should only treat ORs with %g0 as 
moves, not all ORs.

llvm-svn: 16576
 2004-09-29 03:28:15 +00:00
Brian Gaeke
86aaed6a34 Use FpMOVD pseudo-instruction to move doubles around. 
llvm-svn: 16575
 2004-09-29 03:27:30 +00:00
Brian Gaeke
02c3d2f588 Add new FpMOVD pseudo-instruction, used to move doubles around. 
llvm-svn: 16574
 2004-09-29 03:27:29 +00:00
Brian Gaeke
42a0b9a05c Fix double and long alignment. 
Call the FPMover pass after register allocation.

llvm-svn: 16573
 2004-09-29 03:26:27 +00:00
Brian Gaeke
ab7ac780bb Put quotes around argument to .section directive. 
llvm-svn: 16572
 2004-09-29 03:25:40 +00:00
Brian Gaeke
8d39e108a5 Add createSparcV8FPMoverPass(). 
llvm-svn: 16571
 2004-09-29 03:25:39 +00:00
Brian Gaeke
81597f52ff Pass which converts FpMOVD (double move pseudoinstructions) to pairs 
of FMOVS instrs.

llvm-svn: 16570
 2004-09-29 03:24:34 +00:00
Chris Lattner
4ea03eea49 Hrm, really, all tests passed without this, but it is scary to think how... 
llvm-svn: 16568
 2004-09-29 03:16:24 +00:00
Chris Lattner
1ad393b186 Remove debugging printout 
Instcombine (setcc (truncate X), C1).

This occurs THOUSANDS of times in many benchmarks.  Particularlly common
seem to be things like (seteq (cast bool X to int), int 0)

This turns it into (seteq bool %X, false), which then becomes (not %X).

llvm-svn: 16567
 2004-09-29 03:09:18 +00:00
Nate Begeman
dc50ea0d82 To go along with sabre's improved InstCombining, improve recognition of 
integers that we can use as immediate values in instructions.

Example from yacr2:
-       lis r10, -1
-       ori r10, r10, 65535
-       add r28, r28, r10
+       addi r28, r28, -1
        addi r7, r7, 1
        addi r9, r9, 1
        b .LBB_main_9   ; loopentry.1.i214

llvm-svn: 16566
 2004-09-29 02:35:05 +00:00
Reid Spencer
3d434887d4 Improve validity checking of windows path names and fix file creation 
problems.

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16565
 2004-09-29 00:01:17 +00:00
Reid Spencer
6a072ccbb0 Use llvm::sys::Path to destroy the file. 
Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16564
 2004-09-28 23:58:03 +00:00
Reid Spencer
e2e85bd507 Win32 implementation of TimeValue::now(). 
Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16563
 2004-09-28 23:56:20 +00:00
Reid Spencer
9ef91b3145 FreeBSD implementation of the TimeValue::now() method. 
Patch kindly contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16562
 2004-09-28 23:54:12 +00:00
Chris Lattner
0046cec2a2 Fold (X setcc C1) | (X setcc C2) 
This implements or.ll:test1[89]

llvm-svn: 16561
 2004-09-28 22:33:08 +00:00
Chris Lattner
d3cfa5aba5 Fold (and (setcc X, C1), (setcc X, C2)) 
This is important for several reasons:

1. Benchmarks have lots of code that looks like this (perlbmk in particular):

  %tmp.2.i = setne int %tmp.0.i, 128              ; <bool> [#uses=1]
  %tmp.6343 = seteq int %tmp.0.i, 1               ; <bool> [#uses=1]
  %tmp.63 = and bool %tmp.2.i, %tmp.6343          ; <bool> [#uses=1]

   we now fold away the setne, a clear improvement.

2. In the more important cases, such as (X >= 10) & (X < 20), we now produce
   smaller code: (X-10) < 10.

3. Perhaps the nicest effect of this patch is that it really helps out the
   code generators.  In particular, for a 'range test' like the above,
   instead of generating this on X86 (the difference on PPC is even more
   pronounced):

        cmp %EAX, 50
        setge %CL
        cmp %EAX, 100
        setl %AL
        and %CL, %AL
        cmp %CL, 0

   we now generate this:

        add %EAX, -50
        cmp %EAX, 50

   Furthermore, this causes setcc's to be folded into branches more often.

These combinations trigger dozens of times in the spec benchmarks, particularly
in 176.gcc, 186.crafty, 253.perlbmk, 254.gap, & 099.go.

llvm-svn: 16559
 2004-09-28 21:48:02 +00:00
Nate Begeman
18d4f04e0a Add support for the isLoad and isStore flags, needed by the instruction scheduler 
llvm-svn: 16555
 2004-09-28 21:29:00 +00:00
Chris Lattner
bd2d966db6 Capture delay slot info 
llvm-svn: 16551
 2004-09-28 18:34:14 +00:00
Chris Lattner
d7b9ededb4 Implement X / C1 / C2 folding 
Implement (setcc (shl X, C1), C2) folding.

The second one occurs several dozen times in spec.  The first was added
just in case.  :)

These are tested by shift.ll:test2[12], and div.ll:test5

llvm-svn: 16549
 2004-09-28 18:22:15 +00:00
Chris Lattner
a4e0ed87bc shl is always zero extending, so always use a zero extending shift right. 
This latent bug was exposed by recent changes, and is tested as:
llvm/test/Regression/Transforms/InstCombine/2004-09-28-BadShiftAndSetCC.llx

llvm-svn: 16546
 2004-09-28 17:54:07 +00:00
Misha Brukman
a31e841080 Fix doxygen comment 
llvm-svn: 16542
 2004-09-28 16:57:46 +00:00
Alkis Evlogimenos
4f5920aaef Add includes and use std:: for standard library calls to make code 
compile on windows. This patch was contributed by Paolo Invernizzi.

llvm-svn: 16539
 2004-09-28 14:42:44 +00:00
Alkis Evlogimenos
192cc2e3aa Since we use alloca now make sure we include the proper headers for it. 
llvm-svn: 16536
 2004-09-28 02:53:15 +00:00
Alkis Evlogimenos
a10f96d417 Use alloca instead of a C99 style array. This should fix the 
compilation problem in windows.

llvm-svn: 16535
 2004-09-28 02:47:38 +00:00
Alkis Evlogimenos
7ff66b2884 Pull assignment out of for loop conditional in order for this to 
compile under windows. Patch contributed by Paolo Invernizzi!

llvm-svn: 16534
 2004-09-28 02:40:37 +00:00
Alkis Evlogimenos
95cc7f115a Fix includes. Patch contributed by Paolo Invernizzi! 
llvm-svn: 16533
 2004-09-28 02:38:58 +00:00
Chris Lattner
f953091075 Fix two bugs: one where a condition was mistakenly swapped, and another 
where we folded (X & 254) -> X < 1 instead of X < 2.  These problems were
latent problems exposed by the latest patch.

llvm-svn: 16528
 2004-09-27 19:29:18 +00:00
Misha Brukman
88a1e0aba4 SparcV8 int regs are not only 32-bits in width, but they are 32-bit aligned! 
llvm-svn: 16526
 2004-09-27 18:22:18 +00:00
Chris Lattner
047daf6261 The system ranlib on darwin occasionally adds two extra newlines to the 
end of files, breaking the CFE build.  As a gross hack around this,
ignore any trailing garbage on bytecode files.  Thanks to Brian for digging
in and identifying the problem.

llvm-svn: 16525
 2004-09-27 16:59:06 +00:00
Chris Lattner
a715ffded3 Fold: (setcc (shr X, ShAmt), CI), where 'cc' is eq or ne. This xform 
triggers often, for example:

6x in povray, 1x in gzip, 279x in gcc, 1x in crafty, 8x in eon, 11x in perlbmk,
362x in gap, 4x in vortex, 14 in m88ksim, 211x in 126.gcc, 1x in compress,
11x in ijpeg, and 4x in 147.vortex.

llvm-svn: 16521
 2004-09-27 16:18:50 +00:00
Nate Begeman
921a44443d Correct some BuildMI arguments for the upcoming simple scheduler 
llvm-svn: 16519
 2004-09-27 05:08:17 +00:00
Misha Brukman
84e238e5ed Fix the copy-pasto that Brian noticed: V8 int regs are 32-bits wide, not 64. 
llvm-svn: 16518
 2004-09-26 21:07:43 +00:00
Reid Spencer
4c3cda9e95 Updated to reflect changes in the interface of TimeValue::now(). 
llvm-svn: 16515
 2004-09-25 08:32:37 +00:00
Reid Spencer
78e20a7f60 Added stub implementations of TimeValue concept for remaining platforms. 
llvm-svn: 16513
 2004-09-25 05:03:54 +00:00
Reid Spencer
07d5fa1312 Wrap to 80 cols. 
llvm-svn: 16512
 2004-09-25 05:03:22 +00:00
Reid Spencer
894f394594 Initial implementation of the TimeValue abstraction. 
llvm-svn: 16511
 2004-09-24 23:25:19 +00:00
Chris Lattner
9d4748d32d Implement shift-and combinations, implementing InstCombine/and.ll:test19-21 
These combinations trigger 4 times in povray, 7x in gcc, 4x in gap, and 2x in bzip2.

llvm-svn: 16508
 2004-09-24 15:21:34 +00:00
Chris Lattner
7e603bfc67 Move LHSI->hasOneUse() into the arms of the conditional, reindenting code. 
No functionality changes here.

llvm-svn: 16505
 2004-09-23 21:52:49 +00:00
Chris Lattner
00ea30c3c5 Implement Transforms/InstCombine/and.ll:test18, a case that occurs 20 times 
in perlbmk

llvm-svn: 16504
 2004-09-23 21:46:38 +00:00
Chris Lattner
6409a166e8 Implement select.ll:test16: fold load (select C, X, null) -> load X 
llvm-svn: 16499
 2004-09-23 15:46:00 +00:00
Reid Spencer
6210b04509 Patch for MINGW. Patch provided by Henrik Bach. 
llvm-svn: 16495
 2004-09-23 14:47:10 +00:00
Nate Begeman
75f0d35dc6 Fix the last of the major PPC GEP folding deficiencies. This will allow 
the ISel to use indexed and non-zero immediate offsets for GEPs that have
more than one use.  This is common for instruction sequences such as a load
followed by a modify and store to the same address.

llvm-svn: 16493
 2004-09-23 05:31:33 +00:00
Misha Brukman
a59d95f2ed Use the V8/V9 shared register file description 
llvm-svn: 16485
 2004-09-22 21:48:50 +00:00
Misha Brukman
72c0988b77 Combine the F2 and F3 instruction classes into one file for simplicity 
llvm-svn: 16484
 2004-09-22 21:38:42 +00:00
Misha Brukman
5290581b39 Fix file header path 
llvm-svn: 16483
 2004-09-22 21:29:12 +00:00
Misha Brukman
3f8390a72f Prettify formatting of the file, adjust paths to making V8 a subdir of Sparc 
llvm-svn: 16482
 2004-09-22 20:09:29 +00:00
Misha Brukman
f8a2aee058 V8 is now a subdirectory of Sparc; adjust paths accordingly 
llvm-svn: 16481
 2004-09-22 20:08:52 +00:00
Nate Begeman
61d1797c03 add optimized code sequences for setcc x, 0 
llvm-svn: 16478
 2004-09-22 04:40:25 +00:00
Chris Lattner
537636bb55 Do not fold (X + C1 != C2) if there are other users of the add. Doing 
this transformation used to take a loop like this:

int Array[1000];
void test(int X) {
  int i;
  for (i = 0; i < 1000; ++i)
    Array[i] += X;
}

Compiled to LLVM is:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ]            ; <uint> [#uses=2]
        %tmp.4 = getelementptr [1000 x int]* %Array, int 0, uint %indvar                ; <int*> [#uses=2]
        %tmp.7 = load int* %tmp.4               ; <int> [#uses=1]
        %tmp.9 = add int %tmp.7, %X             ; <int> [#uses=1]
        store int %tmp.9, int* %tmp.4
***     %indvar.next = add uint %indvar, 1              ; <uint> [#uses=2]
***     %exitcond = seteq uint %indvar.next, 1000               ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

and turn it into a loop like this:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ]            ; <uint> [#uses=3]
        %tmp.4 = getelementptr [1000 x int]* %Array, int 0, uint %indvar                ; <int*> [#uses=2]
        %tmp.7 = load int* %tmp.4               ; <int> [#uses=1]
        %tmp.9 = add int %tmp.7, %X             ; <int> [#uses=1]
        store int %tmp.9, int* %tmp.4
***     %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
***     %exitcond = seteq uint %indvar, 999             ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

Note that indvar.next and indvar can no longer be coallesced.  In machine
code terms, this patch changes this code:

.LBBtest_1:     # no_exit
        mov %EDX, OFFSET Array
        mov %ESI, %EAX
        add %ESI, DWORD PTR [%EDX + 4*%ECX]
        mov %EDX, OFFSET Array
        mov DWORD PTR [%EDX + 4*%ECX], %ESI
        mov %EDX, %ECX
        inc %EDX
        cmp %ECX, 999
        mov %ECX, %EDX
        jne .LBBtest_1  # no_exit

into this:

.LBBtest_1:     # no_exit
        mov %EDX, OFFSET Array
        mov %ESI, %EAX
        add %ESI, DWORD PTR [%EDX + 4*%ECX]
        mov %EDX, OFFSET Array
        mov DWORD PTR [%EDX + 4*%ECX], %ESI
        inc %ECX
        cmp %ECX, 1000
        jne .LBBtest_1  # no_exit

We need better instruction selection to get this:

.LBBtest_1:     # no_exit
        add DWORD PTR [Array + 4*%ECX], EAX
        inc %ECX
        cmp %ECX, 1000
        jne .LBBtest_1  # no_exit

... but at least there is less register juggling

llvm-svn: 16473
 2004-09-21 21:35:23 +00:00
Alkis Evlogimenos
3f8f30bcb8 The real x87 floating point registers should not be allocatable. They 
are only used by the stackifier when transforming FPn register
allocations to the real stack file x87 registers.

llvm-svn: 16472
 2004-09-21 21:22:11 +00:00
Misha Brukman
bd9f406b0b s/ISel/PPC64ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.

llvm-svn: 16471
 2004-09-21 18:22:33 +00:00
Misha Brukman
6ad6dd2ab9 s/ISel/PPC32ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.

llvm-svn: 16470
 2004-09-21 18:22:19 +00:00
Misha Brukman
e877aacbaa s/ISel/X86ISel/ to have unique class names for debugging via gdb because the C++ 
front-end in gcc does not mangle classes in anonymous namespaces correctly.

llvm-svn: 16469
 2004-09-21 18:21:21 +00:00
Chris Lattner
55d0f3ae97 Make sure to set the operand list 
llvm-svn: 16466
 2004-09-21 17:30:54 +00:00
Chris Lattner
b64bfebc25 Fix potential miscompilations: InstCombine/2004-09-20-BadLoadCombine*.llx 
llvm-svn: 16447
 2004-09-20 10:15:10 +00:00
Alkis Evlogimenos
a3a9fa1d80 Fix loop condition so that we don't decrement off the beginning of the 
list.

llvm-svn: 16440
 2004-09-20 06:42:58 +00:00
Chris Lattner
43c0372c0b 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

llvm-svn: 16436
 2004-09-20 04:48:05 +00:00
Chris Lattner
3acc541d97 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

Also, fix some undefined behavior, expecting | on booleans to evaluate
left-to-right.

llvm-svn: 16435
 2004-09-20 04:47:19 +00:00
Chris Lattner
01bbefa96c Finegrainify namespacification 
'Pass' should now not be derived from by clients.  Instead, they should derive
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

llvm-svn: 16434
 2004-09-20 04:44:31 +00:00
Chris Lattner
b65d7c65d6 Prototype more accurately 
llvm-svn: 16433
 2004-09-20 04:43:57 +00:00
Chris Lattner
c137c9ac39 Prototype these functions more accurately 
llvm-svn: 16432
 2004-09-20 04:43:15 +00:00
Reid Spencer
046d7d920a Put in a #error in the event that we don't have an mmap that can map a file 
into memor. This is just a reminder that the ReadFileIntoAddressSpace
function needs to be properly converted to lib/System and implemented via
read/write if there's no mmap of file support.

llvm-svn: 16428
 2004-09-20 04:13:43 +00:00
Chris Lattner
f607a26457 Make isSafeToLoadUnconditionally a bit smarter, implementing PR362 and 
Regression/Transforms/InstCombine/CPP_min_max.llx

llvm-svn: 16409
 2004-09-19 19:18:10 +00:00
Chris Lattner
e6755fe307 Fix a nasty iterator invalidation problem I introduced yesterday. This 
unfortunately is the cause of a bunch of failures from tonight, and the
reason the tester is running so slow :(

llvm-svn: 16407
 2004-09-19 19:01:06 +00:00
Chris Lattner
98d434988e Remove a whole bunch of horrible hacky code that was used to promote allocas 
whose addresses where used by trivial phi nodes and select instructions.  This
is now performed by the instcombine pass, which is more powerful, is much
simpler, and is faster.  This allows the deletion of a bunch of code, two
FIXME's and two gotos.

llvm-svn: 16406
 2004-09-19 18:51:51 +00:00
Chris Lattner
f45dc6dae6 Make instruction combining a bit more aggressive in the face of volatile 
loads, and implement two new transforms: InstCombine/load.ll:test[56].

llvm-svn: 16404
 2004-09-19 18:43:46 +00:00
Reid Spencer
5eee940491 Minor correction to Signals implementation. 
Patch submitted by Jeff Cohen. Thanks Jeff!

llvm-svn: 16401
 2004-09-19 05:37:39 +00:00
Chris Lattner
188b4e4983 Add comment 
llvm-svn: 16400
 2004-09-19 01:05:16 +00:00
Chris Lattner
12bcdf2e01 Fix the inliner to always delete any edges from the external call node to 
a function being deleted.  Due to optimizations done while inlining, there
can be edges from the external call node to a function node that were not
apparent any longer.

This fixes the compiler crash while compiling 175.vpr

llvm-svn: 16399
 2004-09-18 21:37:03 +00:00
Chris Lattner
110bbafcf7 Add CallGraphNode::removeAnyCallEdgeTo method 
llvm-svn: 16398
 2004-09-18 21:34:34 +00:00
Reid Spencer
b503c250a3 Use the /dev/zero device as the device on which the pages are mapped. 
Patch contributed by Henrik Bach. Thanks Henrik!

llvm-svn: 16397
 2004-09-18 19:34:09 +00:00
Reid Spencer
fb3c25ded9 Porting of Unix implementation to Win32. 
Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16396
 2004-09-18 19:29:16 +00:00
Reid Spencer
9717ec42eb Get rid of file descriptor leak in create_file. 
llvm-svn: 16395
 2004-09-18 19:25:11 +00:00
Chris Lattner
223e9d38b5 Convert this pass to be a CallGraphSCCPass instead of a Pass, which eliminates 
the worklist and makes it more efficient.  This does not change functionality
at all.

llvm-svn: 16390
 2004-09-18 00:34:13 +00:00
Chris Lattner
f31ae4da07 Make sure to remove the Select instruction as well 
llvm-svn: 16389
 2004-09-18 00:32:40 +00:00
Chris Lattner
53dea1ce37 When changing a function, make sure to update the CallGraphNode for the 
function, not just the CallGraph.

llvm-svn: 16388
 2004-09-18 00:27:20 +00:00
Chris Lattner
a9b80a3258 Implement new changeFunction method, nuke a never implemented one. 
llvm-svn: 16386
 2004-09-18 00:22:13 +00:00
Chris Lattner
228e66d208 Fix typo in comment 
llvm-svn: 16384
 2004-09-17 03:58:39 +00:00
Reid Spencer
fe3656ecc6 Make sure critical sections are entered before trying to leave them. 
Add some additional commentary about the workings of this module.

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16383
 2004-09-17 03:02:27 +00:00
Reid Spencer
08cba3070b Allow "bc" as suffix for bytecode files. 
llvm-svn: 16381
 2004-09-16 16:36:10 +00:00
Reid Spencer
c7ed215028 Implement the signals interface for Win32. 
Patch provided by Jeff Cohen. Thanks Jeff!

llvm-svn: 16380
 2004-09-16 15:53:16 +00:00
Chris Lattner
e54e70266e Add a newline 
llvm-svn: 16369
 2004-09-15 17:53:52 +00:00
Reid Spencer
c6a8d70cff Convert code to compile with vc7.1. 
Patch contributed by Paolo Invernizzi. Thanks Paolo!

llvm-svn: 16368
 2004-09-15 17:06:42 +00:00
Chris Lattner
f1a0bf88c5 Add some assertions 
llvm-svn: 16366
 2004-09-15 16:59:47 +00:00
Reid Spencer
b985bbc08d Patches to make this file actually compile under windows. 
Patches submitted by Jeff Cohen. Thanks Jeff!

llvm-svn: 16362
 2004-09-15 05:49:50 +00:00
Reid Spencer
f8a8c7dd06 Initial version of the SysConfig abstraction for Win32. 
llvm-svn: 16361
 2004-09-15 05:48:49 +00:00
Reid Spencer
32525ca7db First version of a common header file for Win32 implementations. 
llvm-svn: 16360
 2004-09-15 05:48:11 +00:00
Reid Spencer
64076f59a3 Initial implementation of the Process abstraction for Win32. 
llvm-svn: 16359
 2004-09-15 05:47:40 +00:00
Reid Spencer
78f98e5b49 Fix the interface to ReleaseRWX to take MemoryBlock& not Memory& 
llvm-svn: 16356
 2004-09-15 03:55:45 +00:00
Chris Lattner
5751f19d86 Fix a bug in the previous checkin that broke 255.vortex 
llvm-svn: 16355
 2004-09-15 02:34:40 +00:00
Alkis Evlogimenos
95075646ab When creating constant arrays check that the initializer vector is the 
same size as the one in the array type.

llvm-svn: 16354
 2004-09-15 02:32:15 +00:00
Misha Brukman
9e5af08ef9 Fit long lines into 80 cols via creative space elimination 
llvm-svn: 16353
 2004-09-15 01:40:18 +00:00
Misha Brukman
20c26ca53b Wrap long line 
llvm-svn: 16352
 2004-09-15 01:34:42 +00:00
Misha Brukman
90cc1b0ed2 Targets are independent of each other, so compile them in parallel 
llvm-svn: 16351
 2004-09-15 01:34:25 +00:00
Chris Lattner
6833186048 Make sure to update alias analysis information as we transform the function. 
This fixes PR420 and Regression/Transforms/LICM/2004-09-14-AliasAnalysisInvalidate.llx

llvm-svn: 16348
 2004-09-15 01:04:07 +00:00
Chris Lattner
1d9b957384 If given an AliasSetTracker object to update, update it. 
llvm-svn: 16347
 2004-09-15 01:02:54 +00:00
Chris Lattner
606caa617e Implement an AliasSetTracker::copyValue method 
llvm-svn: 16344
 2004-09-14 19:15:32 +00:00
Chris Lattner
a7635e78c2 Remove a long-dead pass. Actually, this pass was never used at all. 
llvm-svn: 16337
 2004-09-14 16:33:01 +00:00
Reid Spencer
73742a57c4 Fix a compilation error. 
llvm-svn: 16335
 2004-09-14 15:42:11 +00:00
Reid Spencer
7bd9d86b65 Okay, the list of link-time passes wasn't such a hot idea. Its prone to 
error. We'll strategize on this when we have multiple front ends to deal
with. For now llvm-ld just runs a standard set of transforms.

llvm-svn: 16333
 2004-09-14 05:43:23 +00:00
Chris Lattner
99d5ceac0d Don't print newlines between passes in the pass list. 
Note to self: sentences end with ".", not "...".
Note to reid: sentences end with ".", not "".   :)

llvm-svn: 16332
 2004-09-14 05:06:58 +00:00
Chris Lattner
c131f05ebb Don't print newlines between each library in the deplibs list. 
llvm-svn: 16331
 2004-09-14 04:51:44 +00:00
Chris Lattner
aee36bb527 Revamp the Register class, and allow the use of the RegisterGroup class to 
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!

llvm-svn: 16330
 2004-09-14 04:17:02 +00:00
Reid Spencer
d7f00c68ef Implement the GetLibraryPath function. 
llvm-svn: 16323
 2004-09-14 00:16:39 +00:00
Reid Spencer
4a1593ebd2 Add support for the link-time pass list to Modules. 
llvm-svn: 16321
 2004-09-13 23:44:23 +00:00
Reid Spencer
ce7c15737a Simplify the sys::Memory interface per Chris' request. 
llvm-svn: 16318
 2004-09-13 22:38:11 +00:00
Reid Spencer
2114c143cf Clean up the interface and implementation of sys::Program so that it is 
cleanly dissociated from the sys::Path class.

llvm-svn: 16315
 2004-09-13 21:48:44 +00:00
Chris Lattner
3cfb801817 Changes to make this work with Jason's patch. I checked this by hand, but 
would appreciate if others would also look at this to make sure I didn't
botch something obvious

llvm-svn: 16312
 2004-09-13 21:32:03 +00:00
Misha Brukman
ec87a61944 Fix filename: Printer.cpp has become X86AsmPrinter.cpp 
llvm-svn: 16299
 2004-09-12 21:26:04 +00:00
Misha Brukman
e0998a1df8 Unbreak doxygen, according to Reid. 
llvm-svn: 16298
 2004-09-12 20:56:38 +00:00
Misha Brukman
7554de4ba6 Fix code spacing/alignment 
llvm-svn: 16297
 2004-09-12 20:47:33 +00:00
Reid Spencer
ab5442eccc Fix typo: sterror -> strerror 
llvm-svn: 16294
 2004-09-11 20:18:08 +00:00
Reid Spencer
8496e508e2 Correct the dynamic lib suffix on Darwin. 
llvm-svn: 16293
 2004-09-11 07:35:01 +00:00
Reid Spencer
6920555959 Provide initial implementations of Memory and Process concepts for various 
platforms.
Implement GetLLVMSuffix function for the Path concept.

llvm-svn: 16292
 2004-09-11 04:59:30 +00:00
Reid Spencer
513f442c67 Provide a generic Unix implementation of the Memory concept. 
llvm-svn: 16291
 2004-09-11 04:57:25 +00:00
Reid Spencer
04d8abc147 Provide a generic unix implementation of the Process abstraction. 
llvm-svn: 16290
 2004-09-11 04:56:56 +00:00
Reid Spencer
aad677983e Implemented support for detecting file types by magic number, stripping 
path and suffix to leave basename, and getting the DLL suffix.

llvm-svn: 16289
 2004-09-11 04:55:08 +00:00
Reid Spencer
94b2c61caa Implementation of Process concept for SUSv2 platforms. 
llvm-svn: 16288
 2004-09-11 04:54:06 +00:00
Reid Spencer
b1df891777 Convert the Emitter to use the lib/System "Memory" interface instead of the 
old SystemUtils.h interface to allocate RWX blocks of memory.

llvm-svn: 16286
 2004-09-11 04:31:03 +00:00
Reid Spencer
870976f573 Implement support for dependent libraries. The "source" module's dependent 
libraries list is merged into the "destination" module's list. Also, if the
source module is one of the dependent libraries, it is removed from the
list.

llvm-svn: 16282
 2004-09-11 04:25:17 +00:00
Reid Spencer
378bdcd409 Change interface to use correct typedef so it will always compile. 
llvm-svn: 16281
 2004-09-11 04:22:58 +00:00
Reid Spencer
f0bec2fe30 Print the dependent libraries when dumping bytecode. 
llvm-svn: 16275
 2004-09-11 04:14:07 +00:00
Misha Brukman
587a924177 Renamed file to SparcV8ISelSimple.cpp 
llvm-svn: 16267
 2004-09-10 18:51:12 +00:00
Brian Gaeke
1e7a5e01e0 Roll back constant printing changes until the problems with larger 
programs and C++ can be looked at in detail.

llvm-svn: 16266
 2004-09-10 18:01:45 +00:00
Alkis Evlogimenos
04207a7cf6 Add assertion descriptiosn on type mismatches when creating 
ConstantArray and ConstantPacked objects.

llvm-svn: 16261
 2004-09-10 04:16:59 +00:00
Alkis Evlogimenos
4117e2a7a9 Grow the map on entry so that we don't crash if joinIntervals never 
runs (if coalescing is disabled for example).

llvm-svn: 16259
 2004-09-09 19:24:38 +00:00
Alkis Evlogimenos
4d2b0a2b5b Use a shorter form to express implicit use/defs in FpGETRESULT and 
FpSETRESULT.

llvm-svn: 16247
 2004-09-08 18:29:31 +00:00
Alkis Evlogimenos
3540de9ea6 A call instruction should implicitely define ST0 since the return 
value is returned in that register. The pseudo instructions
FpGETRESULT and FpSETRESULT shold also have an implicity use and def
of ST0 repsecitvely.

llvm-svn: 16246
 2004-09-08 16:54:54 +00:00
Brian Gaeke
3229885493 This file does not need <iostream>, I think. 
llvm-svn: 16245
 2004-09-08 04:10:52 +00:00
Alkis Evlogimenos
a5edc58139 Use a DenseMap for mapping reg->reg. This improves the LiveInterval 
analysis running time from 2.7869secs to 2.5226secs on 176.gcc.

llvm-svn: 16244
 2004-09-08 03:01:50 +00:00
Nate Begeman
ce6d62eac7 Add 64 bit divide instructions, and use them 
llvm-svn: 16198
 2004-09-06 18:46:59 +00:00
Alkis Evlogimenos
992cf4f638 Indent to 2 spaces and cleanup excess whitespace. 
llvm-svn: 16188
 2004-09-05 18:41:35 +00:00
Alkis Evlogimenos
d1388a3eae Indent to 2 spaces. 
llvm-svn: 16187
 2004-09-05 18:39:20 +00:00
Misha Brukman
8e6e187922 * Change PPC32AsmPrinter => PowerPCAsmPrinter since it is now shared between 
Darwin and AIX and is not 32- or 64-bit specific
* Bring back PowerPC.td as a result, to make it use the `PowerPC' class name
* Adjust Makefile accordingly

llvm-svn: 16174
 2004-09-05 02:42:44 +00:00
Misha Brukman
f55a7b3afa Renamed PPC32AsmPrinter.cpp => PowerPCAsmPrinter.cpp as the Darwin and AIX asm 
printers are now unified into one file.

llvm-svn: 16173
 2004-09-05 02:27:37 +00:00
Nate Begeman
56a134d07a Include MathExtras.h to fix build breakage, thanks to Vladimir 
llvm-svn: 16164
 2004-09-04 14:51:26 +00:00
Nate Begeman
e816600b3e All PPC instructions are now auto-printed 
32 and 64 bit AsmWriters unified
Darwin and AIX specific features of AsmWriter split out

llvm-svn: 16163
 2004-09-04 05:00:00 +00:00
Reid Spencer
d5b1443205 Clean up some "clean:" targets so they use $(VERB) and don't print anything 
by default, like every other "clean" target in LLVM.

llvm-svn: 16161
 2004-09-03 23:19:53 +00:00
Misha Brukman
73837314b6 Order #includes alphabetically, local .h files first. 
llvm-svn: 16153
 2004-09-03 18:25:53 +00:00
Alkis Evlogimenos
0c50e0f211 Fixes to make LLVM compile with vc7.1. 
Patch contributed by Paolo Invernizzi!

llvm-svn: 16152
 2004-09-03 18:19:51 +00:00
Alkis Evlogimenos
2676000067 Change the way we choose a free register: instead of picking the first 
free allocatable register, we prefer the a free one with the most uses
of inactive intervals.

llvm-svn: 16148
 2004-09-02 21:24:33 +00:00
Alkis Evlogimenos
999a10318f Change the way we choose a free register: instead of picking the first 
free allocatable register, we prefer the a free one with the most uses
of inactive intervals. This causes less spills and performes a bit
better compared to gcc:

Program                 | GCC/LLC (Before)| GCC/LLC (After)
164.gzip/164.gzip       | 0.59            | 0.60
175.vpr/175.vpr         | 0.57            | 0.58
176.gcc/176.gcc         | 0.59            | 0.61
181.mcf/181.mcf         | 0.94            | 0.95
186.crafty/186.crafty   | 0.62            | 0.62
197.parser/197.parser   | 0.89            | 0.88
252.eon/252.eon         | 0.61            | 0.66
253.perlbmk/253.perlbmk | 0.79            | 0.84
254.gap/254.gap         | 0.81            | 0.81
255.vortex/255.vortex   | 0.92            | 0.93
256.bzip2/256.bzip2     | 0.69            | 0.69
300.twolf/300.twolf     | 0.91            | 0.90

llvm-svn: 16147
 2004-09-02 21:23:32 +00:00
Alkis Evlogimenos
7a287da6cd We don't need to sort the added vector as unhandled intervals are 
stored in a binary heap.

llvm-svn: 16143
 2004-09-02 18:00:38 +00:00
Nate Begeman
3bad485eec Convert remaining X-Form and Pseudo instructions over to asm writer 
llvm-svn: 16142
 2004-09-02 08:13:00 +00:00
Brian Gaeke
79802222d1 Back to compiling land for v8 
llvm-svn: 16138
 2004-09-02 02:37:43 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Alkis Evlogimenos
e7e63c8da4 Be a bit more efficient when processing the active and inactive 
lists. Instead of scanning the vector backwards, scan it forward and
swap each element we want to erase. Then at the end erase all removed
intervals at once. This doesn't save much: 0.08s out of 4s when
compiling 176.gcc.

llvm-svn: 16136
 2004-09-01 22:52:29 +00:00
Alkis Evlogimenos
ad6f0f57fa Give a better assertion if we see a use before a def. 
llvm-svn: 16135
 2004-09-01 22:34:52 +00:00
Reid Spencer
07837f4d24 mkdtemp doesn't exist on Cygwin. Use tempnam & mkdir instead. 
llvm-svn: 16133
 2004-09-01 20:29:35 +00:00
Reid Spencer
fc74d1fba8 Make CommandLine prefix error output with the name of the program. 
llvm-svn: 16129
 2004-09-01 04:41:28 +00:00
Reid Spencer
866afbdcf9 Add support for FreeBSD 
llvm-svn: 16127
 2004-08-31 18:09:35 +00:00
Reid Spencer
6e79910f16 Add support for Interix and FreeBSD 
llvm-svn: 16126
 2004-08-31 18:03:23 +00:00
Reid Spencer
20defbca69 Actually define PreventCoreFiles in the sys namespace. 
llvm-svn: 16125
 2004-08-31 17:53:41 +00:00
Reid Spencer
31513069db Add a new abstraction, SysConfig for platform independent system 
configuration calls. Right now this just contains PreventCoreFiles so that
bugpoint can by platform independent.

llvm-svn: 16124
 2004-08-31 17:43:29 +00:00
Alkis Evlogimenos
0513a4d8e1 Minor code clarity changes. 
llvm-svn: 16123
 2004-08-31 17:39:15 +00:00
Nate Begeman
220175aa4d convert M and MD form instructions to generated asm writer 
llvm-svn: 16121
 2004-08-31 02:28:08 +00:00
Reid Spencer
f50551771b Move the GetTemporaryDirectory function from "generic Unix" to platform 
specific.

llvm-svn: 16119
 2004-08-30 21:46:55 +00:00
Reid Spencer
bb50ba0d5a Add inclusion of assert.h 
llvm-svn: 16118
 2004-08-30 16:03:54 +00:00
Nate Begeman
e58512a61c Move yet more instructions over to being printed by the generated asm writer 
llvm-svn: 16112
 2004-08-30 02:28:06 +00:00
Reid Spencer
b67b467dc9 Abbreviate the long descriptions which are now in docs/SystemLibrary.html. 
llvm-svn: 16111
 2004-08-30 02:03:51 +00:00
Reid Spencer
59cb27bcdc Reduce the number of arguments in the instruction builder and make some 
improvements on instruction selection that account for register and frame
index bases.

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16110
 2004-08-30 00:13:26 +00:00
Nate Begeman
7792aa1f8b Convert A-Form instructions to auto-generated asm writer 
llvm-svn: 16107
 2004-08-29 22:45:13 +00:00
Nate Begeman
4a284c7521 Register sizes should be specified in bits 
llvm-svn: 16106
 2004-08-29 22:03:40 +00:00
Nate Begeman
68e2dd66af Improvements to int->float cast code for PPC-64 
llvm-svn: 16105
 2004-08-29 22:02:43 +00:00
Nate Begeman
efbdaad4b7 Put this change back in after testing from Reid proved its innocence. getSpillSize now returns value in bits 
llvm-svn: 16102
 2004-08-29 22:00:24 +00:00
Reid Spencer
2413fb8988 Add a declaration of environ global for Darwin 
llvm-svn: 16100
 2004-08-29 20:10:07 +00:00
Reid Spencer
0c3bada696 Add an assert to cature null Operands. It is better to catch it here than 
to SIGSEGV in the bowels of isa<...> later.

llvm-svn: 16098
 2004-08-29 19:37:59 +00:00
Reid Spencer
3684d5e557 Signals support has been moved to lib/System 
llvm-svn: 16097
 2004-08-29 19:36:34 +00:00
Reid Spencer
e5793abe5e Move a warning comment to where it should have been in the first place. 
llvm-svn: 16088
 2004-08-29 19:25:54 +00:00
Reid Spencer
de380840a4 Correct the vim: specification 
llvm-svn: 16087
 2004-08-29 19:24:53 +00:00
Reid Spencer
fd00fa3ad8 Include some additional header files. 
Fix the banner length.

llvm-svn: 16086
 2004-08-29 19:24:20 +00:00
Reid Spencer
49f3c9b9ee Initial platform independent implementation of operating system concept 
of "Signals" (cleanup after fatal errors).

llvm-svn: 16085
 2004-08-29 19:22:48 +00:00
Reid Spencer
159b0103de Initial commit of an platform-indepdendent implementation for the 
"Program" operating system concept (find and execute programs).

llvm-svn: 16084
 2004-08-29 19:20:41 +00:00
Nate Begeman
923af3763d Implement the following missing functionality in the PPC backend: 
cast fp->bool
cast ulong->fp
algebraic right shift long by non-constant value
These changes tested across most of the test suite.  Fixes Regression/casts

llvm-svn: 16081
 2004-08-29 08:19:32 +00:00
Reid Spencer
f7b4fa2e24 Revise the design of the Path concept per peer review. Too many changes to 
note individually but these essence of it is to not derive from
std::string, clarify the interface, and provide better documentation.
There is now also (untested) implementations for AIX, Darwin, and SunOS.

llvm-svn: 16078
 2004-08-29 05:24:01 +00:00
Alkis Evlogimenos
4f0c0a1adc Remove dead code. 
llvm-svn: 16077
 2004-08-28 22:43:31 +00:00
Alkis Evlogimenos
8ae92113d6 Now that LiveIntervals::addIntervalsForSpills is fixed, do not require 
LiveVariables.

llvm-svn: 16076
 2004-08-27 19:00:29 +00:00
Alkis Evlogimenos
eb7256be64 Only update LiveVariables if it is available. addIntervalsForSpills 
runs after the initial run of the live interval analysis.

llvm-svn: 16075
 2004-08-27 18:59:22 +00:00
Alkis Evlogimenos
7c06c0aeee Back out this change as it broke the build last night. This should be 
investicated further as the linearscan variants don't really need
LiveVariables...

llvm-svn: 16074
 2004-08-27 18:01:21 +00:00
Nate Begeman
ad24578e7d Back out change to divide getSpillSize by 8 until I figure out why it breaks x86, which has register sizes in bits. 
llvm-svn: 16073
 2004-08-27 16:48:24 +00:00
Alkis Evlogimenos
f18ee1fc99 The linear scan variants do not require the LiveVariables analysis. 
llvm-svn: 16071
 2004-08-27 04:51:13 +00:00
Nate Begeman
c0e42be976 Register sizes are in bits, not bytes 
llvm-svn: 16070
 2004-08-27 04:28:10 +00:00
Reid Spencer
1233a0885a Correctly compute the number of compaction tables. 
llvm-svn: 16064
 2004-08-27 00:43:51 +00:00
Reid Spencer
54503bf00a Prevent an empty compaction table from being written to the bytecode file. 
llvm-svn: 16063
 2004-08-27 00:38:44 +00:00
Reid Spencer
6f0fa9867f Add the CompactionTableIsEmpty function so that we can determine if a 
CompactionTable really needs to be emitted. This is not a straight forward
computation, hence the need for a member function here.

llvm-svn: 16062
 2004-08-26 22:32:00 +00:00
Alkis Evlogimenos
03913413da Use newly added API in MRegisterInfo and don't expose the allocatable 
register set anymore. Its users now use the MRegisterInfo API.

llvm-svn: 16061
 2004-08-26 22:23:32 +00:00
Alkis Evlogimenos
3bfc6999f2 Use newly added API in MRegisterInfo. 
llvm-svn: 16060
 2004-08-26 22:22:38 +00:00
Alkis Evlogimenos
100c89e9ea Add getAllocatableSet() function. 
llvm-svn: 16059
 2004-08-26 22:21:04 +00:00
Reid Spencer
43ef1b181f Fix a typo. 
llvm-svn: 16055
 2004-08-26 07:43:33 +00:00
Reid Spencer
34f15a4aa7 First cut at a README for lib/System explaining the #inclusion rules and 
design criteria.

llvm-svn: 16054
 2004-08-26 07:41:41 +00:00
Reid Spencer
fd2b68b931 Add a README explaining the intended content of this directory. 
llvm-svn: 16053
 2004-08-26 05:58:20 +00:00
Brian Gaeke
69fc098326 Previous checkin broke printf(%a) support for fp constants-- re-fix it. 
llvm-svn: 16051
 2004-08-25 19:37:26 +00:00
Brian Gaeke
8b65b55ec1 New version of Bill Wendling's PR33 patch. 
llvm-svn: 16050
 2004-08-25 19:00:42 +00:00
Reid Spencer
b8dda1bbf1 Fix documentation. 
Make the library name LLVMsystem instead of just system so as to not
to be confused with other "system" libraries.

llvm-svn: 16049
 2004-08-25 06:23:45 +00:00
Reid Spencer
a50f1b794a Initial implementation of the Path operating system concept. 
llvm-svn: 16048
 2004-08-25 06:20:07 +00:00
Reid Spencer
d17b7d288e License for this library. 
llvm-svn: 16047
 2004-08-25 00:48:02 +00:00
Reid Spencer
2d1ee6c0d5 Add a wrapper for extraction of the dependent libraries from a bytecode 
file.

llvm-svn: 16037
 2004-08-24 22:46:20 +00:00
Reid Spencer
4691dfb9ba Rearrange output a little to make it nicer. 
llvm-svn: 16036
 2004-08-24 22:45:32 +00:00
Reid Spencer
1605d22f77 Give the -time-passes tool option a global storage location so that its 
value can be discovered by the various LLVM tools.

llvm-svn: 16032
 2004-08-24 17:52:35 +00:00
Chris Lattner
66d61f3a72 Fix a bug in a previous checkin of mine, correcting 
Regression.CodeGen.Generic.2004-04-09-SameValueCoalescing.llx and the
code size problem.

This bug prevented us from doing most register coallesces.

llvm-svn: 16031
 2004-08-24 17:48:29 +00:00
Chris Lattner
6781bb48eb Add -sse[,2,3] arguments to LLC 
llvm-svn: 16018
 2004-08-24 08:18:44 +00:00
Chris Lattner
28c7ae5697 Nuke commented out stuff 
llvm-svn: 16017
 2004-08-24 08:18:27 +00:00
Brian Gaeke
e91606291d This code is dodgy, but the guaranteed assertion failure doesn't help anything. 
llvm-svn: 16014
 2004-08-24 06:41:40 +00:00
Brian Gaeke
ae3378f354 Fix bug in PhyRegAlloc::setCallInterferences() handling call through a 
null pointer.

llvm-svn: 16013
 2004-08-24 06:41:39 +00:00
Brian Gaeke
a4eb36282c Revise head-of-file comment. 
Eliminate some excess whitespace.
Fix bug in CallArgsDescriptor::get() handling call through a null pointer.

llvm-svn: 16012
 2004-08-24 06:41:38 +00:00
Chris Lattner
05d5a44c02 Do not use .xword and friends to emit zeros on V9. Apparently there are issues 
with emitting .xwords when not on an 8-byte boundary (.xword 0 is not the
same as 8 .byte 0's).  Because we do not know when or when we are not aligned,
just emit bytes like the old V9 asmprinter did.

llvm-svn: 16006
 2004-08-24 00:26:11 +00:00
Nate Begeman
0069f07741 Kill a majority of unnecessary sign extensions for byte loads 
llvm-svn: 15991
 2004-08-22 08:10:15 +00:00
Nate Begeman
72ec463dc7 Don't hard code the offset of the saved R31 in functions with frame pointers 
llvm-svn: 15990
 2004-08-22 08:09:17 +00:00
Reid Spencer
7117a132ea Initial checkin of a pass to lower packed operations to scalars operations. 
This also registers the pass with opt with a -lower-packed command line
option.

Patch contributed by Brad Jones.

llvm-svn: 15987
 2004-08-21 21:39:24 +00:00
Reid Spencer
d7d70bdccb Bytecode Analyzer Cleanup: 
- Rearrange output order to make more sense
- Make only the function level output count as "detailed"
- Output dump output directly to stream, don't buffer it.
- Fix counting of block sizes
- Implement new handlers for number of types, dependent libs, target triple
- Compute the size of block headers.

llvm-svn: 15985
 2004-08-21 20:58:19 +00:00
Reid Spencer
4c9c991659 Get rid of an extraneous local variable. 
llvm-svn: 15984
 2004-08-21 20:53:56 +00:00
Reid Spencer
84d4e1b105 Two Changes: 
- Pass the output stream to the analyzer so it can write its output there
  directly instead of buffering it.
- Don't pass a boolean to ParseBytecode because its not needed any more.

llvm-svn: 15983
 2004-08-21 20:52:03 +00:00
Reid Spencer
c0868628e0 Add boolean file format flags in preparation for version 5 bytecode. 
Remove the "processFunctions" boolean from ParseBytecode as it is no
longer needed. This is part of avoiding double reading of functions
when analyzing bytecode.

llvm-svn: 15982
 2004-08-21 20:50:49 +00:00
Reid Spencer
09976167c1 Bytecode Reader Cleanup: 
- provide the correct conversion for ModuleBlockID in read_block (a potential
  bug but not actually exploited because reading module block ids doesn't
  use read_block).
- install support for handleTypeList handler
- install support for handleDependentLibrary handler
- install support for handleTargetTriple handler
- clean up comments, output strings,
- ensure that processing function arguments doesn't SIGSEGV if one of the
  arguments is a null pointer (yeah, it happened .. weird)
- prepare for version 5 bytecode by documenting what will change.

llvm-svn: 15981
 2004-08-21 20:49:23 +00:00
Nate Begeman
e6aace2ecb Back out branchless SetCC code. While it helped a lot in some cases, it 
hurt a lot in others.  Instead, improve branching version of SetCC and
Select instructions.  The old code will be in CVS should we ever need to
dig it up again.

llvm-svn: 15979
 2004-08-21 20:42:14 +00:00
Chris Lattner
15593f74c1 Switch from bytes to bits for alignment. 
Also, change GPRC for PPC32 to align on 32-bit boundary instead of 64-bit

llvm-svn: 15975
 2004-08-21 20:14:40 +00:00
Chris Lattner
64d3bc5e85 Switch from bytes to bits for alignment for consistency 
llvm-svn: 15974
 2004-08-21 20:14:13 +00:00