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Author SHA1 Message Date
Reid Spencer
67ab398ba3 Make long line fit in 80 cols. 
llvm-svn: 36183
 2007-04-16 23:32:28 +00:00
Devang Patel
7d868316fd Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html

llvm-svn: 36182
 2007-04-16 23:03:45 +00:00
Reid Spencer
b640dc70f9 Fix problems in the PartSet lowering having to do with incorrect bit width. 
llvm-svn: 36180
 2007-04-16 22:21:14 +00:00
Reid Spencer
226017813d Regenerate 
llvm-svn: 36179
 2007-04-16 22:02:23 +00:00
Reid Spencer
52d73dba41 Okay, yes there *is* a getKeyLength method on ValueName. And, it should be 
used because we *do* want to allow nulls in names.

llvm-svn: 36178
 2007-04-16 22:01:57 +00:00
Jeff Cohen
279c95b9a7 In the event that some really old non-Intel or -AMD CPU is encountered... 
llvm-svn: 36177
 2007-04-16 21:59:44 +00:00
Reid Spencer
d22d480758 Implement @sext and @zext parameter attribute handling properly instead of 
forcing every small argument of every function regardless of attributes or
calling convention to be expanded.

llvm-svn: 36174
 2007-04-16 21:50:40 +00:00
Jeff Cohen
e6b60c9525 Before assuming that the original code didn't work for Athlon64, the person who 
replaced it with a FIXME should have determined what did work.  Then he would have
realized that the code was in fact correct, and would have avoided breaking it.

llvm-svn: 36173
 2007-04-16 21:48:58 +00:00
Devang Patel
af0b4b4191 Proivde getAnalysis<FPAnalysis>(Func) support. 
llvm-svn: 36159
 2007-04-16 20:56:24 +00:00
Devang Patel
4bf452b5e4 Do not assert during analysis implementation initialization. 
llvm-svn: 36158
 2007-04-16 20:44:16 +00:00
Devang Patel
814d1deba8 Print and delete on the fly pass managers. 
llvm-svn: 36157
 2007-04-16 20:39:59 +00:00
Reid Spencer
162b270bd1 Regenerate. 
llvm-svn: 36156
 2007-04-16 20:35:38 +00:00
Reid Spencer
d36a46527a Check length of string before we walk off the end of it. 
Thanks, Chris.

llvm-svn: 36155
 2007-04-16 20:31:06 +00:00
Devang Patel
3b4e226a87 Update module pass manager to support module passes that require 
function passes.

llvm-svn: 36154
 2007-04-16 20:27:05 +00:00
Devang Patel
c1010840fa Give each pass manager chance to manage lower level analysis pass, which is 
pass required by one of pass managed by the manager.

llvm-svn: 36153
 2007-04-16 20:12:57 +00:00
Anton Korobeynikov
f3e62a428a Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.

llvm-svn: 36146
 2007-04-16 18:10:23 +00:00
Reid Spencer
33f8e6461a Regenerate. 
llvm-svn: 36144
 2007-04-16 17:47:06 +00:00
Reid Spencer
09e600f773 Use a more optimal way to get the name of a function. Thanks, Chris. 
llvm-svn: 36143
 2007-04-16 17:45:50 +00:00
Reid Spencer
16f6e75cf5 Don't return 0 if the len == 5, let the assert handle that case. 
Thanks, Chris.

llvm-svn: 36139
 2007-04-16 16:56:54 +00:00
Reid Spencer
969393b105 For PR1336: 
Subtarget option names must be given in lower case in order to be
recognized. Fixes test/CodeGen/Alpha/ctlz.ll

llvm-svn: 36125
 2007-04-16 14:06:19 +00:00
Reid Spencer
4b8e900991 Fix test/CodeGen/Generic/vector-constantexpr.ll 
llvm-svn: 36123
 2007-04-16 07:08:44 +00:00
Reid Spencer
67f5aa847c Regenerate. 
llvm-svn: 36122
 2007-04-16 06:56:07 +00:00
Reid Spencer
408e427abf For PR1328: 
Use the new parameter on Function::getIntrinsicID to identify cases where
a function is being called with an "llvm." name but it isn't actually an
intrinsic. In such cases generate an error.

llvm-svn: 36121
 2007-04-16 06:55:42 +00:00
Reid Spencer
f12ab5a55b For PR1328: 
Don't assert everytime an intrinsic name isn't recognized. Instead, make
the assert optional when callin getIntrinsicID(). This allows the assembler
to handle invalid intrinsic names gracefully.

llvm-svn: 36120
 2007-04-16 06:54:34 +00:00
Reid Spencer
85f055a567 Revert last patch. It was already fixed. 
llvm-svn: 36102
 2007-04-16 02:24:41 +00:00
Reid Spencer
e411fd1f10 For PR1336: 
Fix a div-by-zero bug noticed by APInt. This fixes:
test/Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36099
 2007-04-16 01:48:37 +00:00
Owen Anderson
b371956400 Tabs -> Spaces 
llvm-svn: 36094
 2007-04-15 23:14:18 +00:00
Chris Lattner
601aa5b489 Fix PR1335 and Transforms/Inline/2007-04-15-InlineEH.ll 
llvm-svn: 36090
 2007-04-15 21:38:06 +00:00
Chris Lattner
c2762b5d83 Fix a nasty bug introduced when apint'ified. This fixes 
Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36081
 2007-04-15 19:52:49 +00:00
Owen Anderson
ea857029ea Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for 
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063
 2007-04-15 08:47:27 +00:00
Chris Lattner
798749cafe fix SimplifyLibCalls/IsDigit.ll 
llvm-svn: 36047
 2007-04-15 05:38:40 +00:00
Chris Lattner
fe00dd8315 Extend store merging to support the 'if/then' version in addition to if/then/else. 
This sinks the two stores in this example into a single store in cond_next.  In this
case, it allows elimination of the load as well:

        store double 0.000000e+00, double* @s.3060
        %tmp3 = fcmp ogt double %tmp1, 5.000000e-01             ; <i1> [#uses=1]
        br i1 %tmp3, label %cond_true, label %cond_next
cond_true:              ; preds = %entry
        store double 1.000000e+00, double* @s.3060
        br label %cond_next
cond_next:              ; preds = %entry, %cond_true
        %tmp6 = load double* @s.3060            ; <double> [#uses=1]

This implements Transforms/InstCombine/store-merge.ll:test2

llvm-svn: 36040
 2007-04-15 01:02:18 +00:00
Chris Lattner
ecd0fda993 refactor some code, no functionality change. 
llvm-svn: 36037
 2007-04-15 00:07:55 +00:00
Owen Anderson
1d837200f2 Fix some unsafe code. Also, tabs -> spaces. 
llvm-svn: 36035
 2007-04-14 23:57:00 +00:00
Owen Anderson
41582c8198 Make ETForest depend on DomTree rather than IDom. This is the first step 
in the long process that will be fixing PR 217.

llvm-svn: 36034
 2007-04-14 23:49:24 +00:00
Chris Lattner
022c2bc0c3 fix long lines 
llvm-svn: 36031
 2007-04-14 23:32:02 +00:00
Chris Lattner
6fbfbf6622 add a note 
llvm-svn: 36028
 2007-04-14 23:06:09 +00:00
Chris Lattner
9764a3cf09 Implement Transforms/InstCombine/vec_extract_elt.ll, transforming: 
define i32 @test(float %f) {
        %tmp7 = insertelement <4 x float> undef, float %f, i32 0
        %tmp17 = bitcast <4 x float> %tmp7 to <4 x i32>
        %tmp19 = extractelement <4 x i32> %tmp17, i32 0
        ret i32 %tmp19
}

into:

define i32 @test(float %f) {
        %tmp19 = bitcast float %f to i32                ; <i32> [#uses=1]
        ret i32 %tmp19
}

On PPC, this is the difference between:

_test:
        mfspr r2, 256
        oris r3, r2, 8192
        mtspr 256, r3
        stfs f1, -16(r1)
        addi r3, r1, -16
        addi r4, r1, -32
        lvx v2, 0, r3
        stvx v2, 0, r4
        lwz r3, -32(r1)
        mtspr 256, r2
        blr

and:

_test:
        stfs f1, -4(r1)
        nop
        nop
        nop
        lwz r3, -4(r1)
        blr

llvm-svn: 36025
 2007-04-14 23:02:14 +00:00
Chris Lattner
3553a131d0 Implement InstCombine/vec_demanded_elts.ll:test2. This allows us to turn 
unsigned test(float f) {
 return _mm_cvtsi128_si32( (__m128i) _mm_set_ss( f*f ));
}

into:

_test:
        movss 4(%esp), %xmm0
        mulss %xmm0, %xmm0
        movd %xmm0, %eax
        ret

instead of:

_test:
        movss 4(%esp), %xmm0
        mulss %xmm0, %xmm0
        xorps %xmm1, %xmm1
        movss %xmm0, %xmm1
        movd %xmm1, %eax
        ret

GCC gets:

_test:
        subl    $28, %esp
        movss   32(%esp), %xmm0
        mulss   %xmm0, %xmm0
        xorps   %xmm1, %xmm1
        movss   %xmm0, %xmm1
        movaps  %xmm1, %xmm0
        movd    %xmm0, 12(%esp)
        movl    12(%esp), %eax
        addl    $28, %esp
        ret

llvm-svn: 36020
 2007-04-14 22:29:23 +00:00
Chris Lattner
7928216e38 avoid copying sets and vectors around. 
llvm-svn: 36017
 2007-04-14 22:10:17 +00:00
Jeff Cohen
5a502fb622 Fix PR1329. 
llvm-svn: 36016
 2007-04-14 21:50:21 +00:00
Chris Lattner
357a11fcbb disable switch lowering using shift/and. It still breaks ppc bootstrap for 
some reason.  :(  Will investigate.

llvm-svn: 36011
 2007-04-14 19:39:41 +00:00
Chris Lattner
3cebebfdd4 avoid iterator invalidation. 
llvm-svn: 36002
 2007-04-14 18:06:52 +00:00
Jeff Cohen
6e724c5338 An even better fix. 
llvm-svn: 35998
 2007-04-14 17:18:29 +00:00
Jeff Cohen
114799eab9 Fix recent regression that broke several llvm-tests. 
llvm-svn: 35996
 2007-04-14 16:55:19 +00:00
Anton Korobeynikov
bdb4f560da Fix PR1325: Case range optimization was performed in the case it 
shouldn't. Also fix some "latent" bug on 64-bit platforms

llvm-svn: 35990
 2007-04-14 13:25:55 +00:00
Chris Lattner
6e71d21892 disable shift/and lowering to work around PR1325 for now. 
llvm-svn: 35985
 2007-04-14 02:26:56 +00:00
Chris Lattner
a283acb406 Implement a few missing xforms: printf("foo\n") -> puts. printf("x") -> putchar 
printf("") -> noop.  Still need to do the xforms for fprintf.

This implements Transforms/SimplifyLibCalls/Printf.ll

llvm-svn: 35984
 2007-04-14 01:17:48 +00:00
Chris Lattner
25f2c932b7 in addition to merging, constantmerge should also delete trivially dead globals, 
in order to clean up after simplifylibcalls.

llvm-svn: 35982
 2007-04-14 01:11:54 +00:00
Chris Lattner
6f64f54168 Implement PR1201 and test/Transforms/InstCombine/malloc-free-delete.ll 
llvm-svn: 35981
 2007-04-14 00:20:02 +00:00
Chris Lattner
b97ff21db2 use an accessor to simplify code. 
llvm-svn: 35979
 2007-04-14 00:17:39 +00:00
Chris Lattner
5ed58fc4a9 add GetElementPtrInst::hasAllZeroIndices, a long-overdue helper method. 
Writing it twice in the same day was too much for me.

llvm-svn: 35978
 2007-04-14 00:12:57 +00:00
Reid Spencer
84c2475e77 We want the number of bits needed, not the power of 2. 
llvm-svn: 35977
 2007-04-14 00:00:10 +00:00
Jeff Cohen
3ffd34cac6 Silence VC++ warning. 
llvm-svn: 35975
 2007-04-13 22:52:03 +00:00
Chris Lattner
8477dd1722 Now that codegen prepare isn't defeating me, I can finally fix what I set 
out to do! :)

This fixes a problem where LSR would insert a bunch of code into each MBB
that uses a particular subexpression (e.g. IV+base+C).  The problem is that
this code cannot be CSE'd back together if inserted into different blocks.

This patch changes LSR to attempt to insert a single copy of this code and
share it, allowing codegenprepare to duplicate the code if it can be sunk
into various addressing modes.  On CodeGen/ARM/lsr-code-insertion.ll,
for example, this gives us code like:

        add r8, r0, r5
        str r6, [r8, #+4]
..
        ble LBB1_4      @cond_next
LBB1_3: @cond_true
        str r10, [r8, #+4]
LBB1_4: @cond_next
...
LBB1_5: @cond_true55
        ldr r6, LCPI1_1
        str r6, [r8, #+4]

instead of:

        add r10, r0, r6
        str r8, [r10, #+4]
...
        ble LBB1_4      @cond_next
LBB1_3: @cond_true
        add r8, r0, r6
        str r10, [r8, #+4]
LBB1_4: @cond_next
...
LBB1_5: @cond_true55
        add r8, r0, r6
        ldr r10, LCPI1_1
        str r10, [r8, #+4]

Besides being smaller and more efficient, this makes it immediately
obvious that it is profitable to predicate LBB1_3 now :)

llvm-svn: 35972
 2007-04-13 20:42:26 +00:00
Chris Lattner
bc03b6c341 Completely rewrite addressing-mode related sinking of code. In particular, 
this fixes problems where codegenprepare would sink expressions into load/stores
that are not valid, and fixes cases where it would miss important valid ones.

This fixes several serious codesize and perf issues, particularly on targets
with complex addressing modes like arm and x86.  For example, now we compile
CodeGen/X86/isel-sink.ll to:

_test:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        cmpl $1233, %eax
        ja LBB1_2       #F
LBB1_1: #T
        movl $4, (%ecx,%eax,4)
        movl $141, %eax
        ret
LBB1_2: #F
        movl (%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 8(%esp), %eax
        leal (,%eax,4), %ecx
        addl 4(%esp), %ecx
        cmpl $1233, %eax
        ja LBB1_2       #F
LBB1_1: #T
        movl $4, (%ecx)
        movl $141, %eax
        ret
LBB1_2: #F
        movl (%ecx), %eax
        ret

llvm-svn: 35970
 2007-04-13 20:30:56 +00:00
Reid Spencer
6e7854339e Implement a getBitsNeeded method to determine how many bits are needed to 
represent a string in binary form by an APInt.

llvm-svn: 35968
 2007-04-13 19:19:07 +00:00
Devang Patel
d86d04983a Remove use of SlowOperationInformer. 
llvm-svn: 35967
 2007-04-13 18:58:18 +00:00
Devang Patel
d01bb17f76 Undo previous check-in. 
llvm-svn: 35966
 2007-04-13 18:35:15 +00:00
Devang Patel
bfd8480bad Hello uses LLVMSupport.a (SlowerOperationInformer) 
llvm-svn: 35965
 2007-04-13 18:28:23 +00:00
Anton Korobeynikov
5bb6590218 Fix PR1323 : we haven't updated phi nodes in good manner :) 
llvm-svn: 35963
 2007-04-13 06:53:51 +00:00
Chris Lattner
e7cab7b7a4 arm has r+r*s and r+i addr modes, but no r+i+r*s addr modes. 
llvm-svn: 35962
 2007-04-13 06:50:55 +00:00
Zhou Sheng
dedfc40044 Make the apint construction more effective. 
llvm-svn: 35960
 2007-04-13 05:57:32 +00:00
Chris Lattner
335f1cb1f8 CSE simple binary expressions when they are inserted. This makes LSR produce 
less huge code that needs to be cleaned up by sdisel.

llvm-svn: 35959
 2007-04-13 05:04:18 +00:00
Reid Spencer
d31093d340 Implement review feedback .. don't double search a set. 
llvm-svn: 35957
 2007-04-12 21:57:15 +00:00
Reid Spencer
f1154e6d96 Make sure intrinsics that are lowered to functions make the function weak 
linkage so we only end up with one of them in a program. These are, after
all overloaded and templatish in nature.

llvm-svn: 35956
 2007-04-12 21:53:38 +00:00
Reid Spencer
0325471d3c Provide support for intrinsics that lower themselves to a function body. 
This can happen for intrinsics that are overloaded.  In such cases it is
necessary to emit a function prototype before the body of the function
that calls the intrinsic and to ensure we don't emit it multiple times.

llvm-svn: 35954
 2007-04-12 21:00:45 +00:00
Lauro Ramos Venancio
6c5f53f6ac Implement Thread Local Storage (TLS) in CBackend. 
llvm-svn: 35951
 2007-04-12 18:42:08 +00:00
Lauro Ramos Venancio
a76c2806de Implement the "thread_local" keyword. 
llvm-svn: 35950
 2007-04-12 18:32:50 +00:00
Reid Spencer
1e53c865c2 Fix bugs in generated code for part_select and part_set so that llc doesn't 
barf when CBE is run with a program that contains these intrinsics.

llvm-svn: 35946
 2007-04-12 13:30:14 +00:00
Reid Spencer
76e9a17f61 Fix a bug in PartSet. The replacement value needs to be zext or trunc to 
the size of the value, not just zext. Also, give better names to two BBs.

llvm-svn: 35945
 2007-04-12 12:46:33 +00:00
Chris Lattner
0da8de5848 the result of an inline asm copy can be an arbitrary VT that the register 
class supports.  In the case of vectors, this means we often get the wrong
type (e.g. we get v4f32 instead of v8i16).  Make sure to convert the vector
result to the right type.  This fixes CodeGen/X86/2007-04-11-InlineAsmVectorResult.ll

llvm-svn: 35944
 2007-04-12 06:00:20 +00:00
Chris Lattner
7acaf64d70 fold noop vbitconvert instructions 
llvm-svn: 35943
 2007-04-12 05:58:43 +00:00
Chris Lattner
2f221a83ec Fix weirdness handling single element vectors. 
llvm-svn: 35941
 2007-04-12 04:44:28 +00:00
Chris Lattner
2b6b79b896 Fix mmx paddq, add support for the 'y' register class, though it isn't tested. 
llvm-svn: 35940
 2007-04-12 04:14:49 +00:00
Reid Spencer
82da0eb67c For PR1284: 
Implement the "part_set" intrinsic.

llvm-svn: 35938
 2007-04-12 02:48:46 +00:00
Chris Lattner
9564abbfb5 improve the patch for PR1318 to also support grouped options with custom 
handlers (like the pass list).  My previous fix only supported *new* command
line options, not additions to old ones.

This fixes test/Feature/load_module.ll

llvm-svn: 35935
 2007-04-12 00:36:29 +00:00
Chris Lattner
b97b122176 Fix CodeGen/X86/2007-03-24-InlineAsmPModifier.ll 
llvm-svn: 35926
 2007-04-11 22:29:46 +00:00
Reid Spencer
2afe5c8354 Build Hello by default so it can be used in test cases. 
llvm-svn: 35922
 2007-04-11 21:03:37 +00:00
Chris Lattner
f29ad16397 fix an infinite loop compiling ldecod, notice by JeffC. 
llvm-svn: 35910
 2007-04-11 16:51:53 +00:00
Chris Lattner
e9a9a3f172 Fix incorrect fall-throughs in addr mode code. This fixes CodeGen/ARM/arm-negative-stride.ll 
llvm-svn: 35909
 2007-04-11 16:17:12 +00:00
Chris Lattner
f7451ea3c2 Fix Transforms/ScalarRepl/union-pointer.ll 
llvm-svn: 35906
 2007-04-11 15:45:25 +00:00
Chris Lattner
32f6730bb1 Fix PR1318 by reacting appropriately to a mutating option list. 
llvm-svn: 35905
 2007-04-11 15:35:18 +00:00
Reid Spencer
bd2afc8391 Fix a bug where ICmpInst objects instantiated directly with a name would 
not retain that name. Not noticed because AsmParser always sets name after
construction. However, llvm2cpp noticed.

llvm-svn: 35903
 2007-04-11 13:04:48 +00:00
Reid Spencer
9b497be3c4 Fix an approximate calculation in an assertion not to give false negatives. 
llvm-svn: 35901
 2007-04-11 13:00:04 +00:00
Chris Lattner
27a80589de Turn stuff like: 
icmp slt i32 %X, 0              ; <i1>:0 [#uses=1]
        sext i1 %0 to i32               ; <i32>:1 [#uses=1]

into:

        %X.lobit = ashr i32 %X, 31              ; <i32> [#uses=1]

This implements InstCombine/icmp.ll:test[34]

llvm-svn: 35891
 2007-04-11 06:57:46 +00:00
Chris Lattner
b659c04f13 Simplify some comparisons to arithmetic, this implements: 
Transforms/InstCombine/icmp.ll

llvm-svn: 35890
 2007-04-11 06:53:04 +00:00
Chris Lattner
1d20292190 Fix this harder. 
llvm-svn: 35888
 2007-04-11 06:50:51 +00:00
Chris Lattner
01ebc25b36 don't create shifts by zero, fix some problems with my previous patch 
llvm-svn: 35887
 2007-04-11 06:43:25 +00:00
Chris Lattner
50a7c8f34e canonicalize (x <u 2147483648) -> (x >s -1) and (x >u 2147483647) -> (x <s 0) 
llvm-svn: 35886
 2007-04-11 06:12:58 +00:00
Chris Lattner
cbd4a7e79c fix a miscompilation of: 
define i32 @test(i32 %X) {
entry:
        %Y = and i32 %X, 4              ; <i32> [#uses=1]
        icmp eq i32 %Y, 0               ; <i1>:0 [#uses=1]
        sext i1 %0 to i32               ; <i32>:1 [#uses=1]
        ret i32 %1
}

by moving code out of commonIntCastTransforms into visitZExt.  Simplify the
APInt gymnastics in it etc.

llvm-svn: 35885
 2007-04-11 05:45:39 +00:00
Chris Lattner
b7448f6187 done 
llvm-svn: 35884
 2007-04-11 05:34:00 +00:00
Chris Lattner
0289490285 Teach the codegen to turn [aez]ext (setcc) -> selectcc of 1/0, which often 
allows other simplifications.  For example, this compiles:
int isnegative(unsigned int X) {
   return !(X < 2147483648U);
}

Into this code:

x86:
        movl 4(%esp), %eax
        shrl $31, %eax
        ret
arm:
        mov r0, r0, lsr #31
        bx lr
thumb:
        lsr r0, r0, #31
        bx lr

instead of:

x86:
        cmpl $0, 4(%esp)
        sets %al
        movzbl %al, %eax
        ret

arm:
        mov r3, #0
        cmp r0, #0
        movlt r3, #1
        mov r0, r3
        bx lr

thumb:
        mov r2, #1
        mov r1, #0
        cmp r0, #0
        blt LBB1_2      @entry
LBB1_1: @entry
        cpy r2, r1
LBB1_2: @entry
        cpy r0, r2
        bx lr

Testcase here: test/CodeGen/Generic/ispositive.ll

llvm-svn: 35883
 2007-04-11 05:32:27 +00:00
Chris Lattner
3f0e49403c Codegen integer abs more efficiently using the trick from the PPC CWG. This 
improves codegen on many architectures.  Tests committed as CodeGen/*/iabs.ll

X86 Old:			X86 New:
_test:				_test:
   movl 4(%esp), %ecx		   movl 4(%esp), %eax
   movl %ecx, %eax		   movl %eax, %ecx
   negl %eax			   sarl $31, %ecx
   testl %ecx, %ecx		   addl %ecx, %eax
   cmovns %ecx, %eax		   xorl %ecx, %eax
   ret				   ret

PPC Old:			PPC New:
_test:				_test:
   cmpwi cr0, r3, -1		   srawi r2, r3, 31
   neg r2, r3			   add r3, r3, r2
   bgt cr0, LBB1_2 ;		   xor r3, r3, r2
LBB1_1: ;			   blr
   mr r3, r2
LBB1_2: ;
   blr

ARM Old:			ARM New:
_test:				_test:
   rsb r3, r0, #0		   add r3, r0, r0, asr #31
   cmp r0, #0			   eor r0, r3, r0, asr #31
   movge r3, r0			   bx lr
   mov r0, r3
   bx lr

Thumb Old:			Thumb New:
_test:				_test:
   neg r2, r0			   asr r2, r0, #31
   cmp r0, #0			   add r0, r0, r2
   bge LBB1_2			   eor r0, r2
LBB1_1: @			   bx lr
   cpy r0, r2
LBB1_2: @
   bx lr


Sparc Old:			Sparc New:
test:				test:
   save -96, %o6, %o6		   save -96, %o6, %o6
   sethi 0, %l0			   sra %i0, 31, %l0
   sub %l0, %i0, %l0		   add %i0, %l0, %l1
   subcc %i0, -1, %l1		   xor %l1, %l0, %i0
   bg .BB1_2			   restore %g0, %g0, %g0
   nop				   retl
.BB1_1:				   nop
   or %g0, %l0, %i0
.BB1_2:
   restore %g0, %g0, %g0
   retl
   nop

It also helps alpha/ia64 :)

llvm-svn: 35881
 2007-04-11 05:11:38 +00:00
Chris Lattner
c7c7a4712e fix a regression introduced by my last patch. 
llvm-svn: 35879
 2007-04-11 03:27:24 +00:00
Chris Lattner
2e1f36a4dc Hack to get sys::Path to recognize macho dylibs. 
llvm-svn: 35878
 2007-04-11 03:15:35 +00:00
Reid Spencer
2792e203c5 For PR1146: 
Put the parameter attributes in their own ParamAttr name space. Adjust the
rest of llvm as a result.

llvm-svn: 35877
 2007-04-11 02:44:20 +00:00
Reid Spencer
caf5a6cbd7 Teach sys::Path how to recognize different kinds of object files for ELF 
and Mach-O systems. Additionally, correct the Mach-O logic code to look at
byte 12 not byte 15. Hopefully this fixes the llvm-ld warning on Darwin.

llvm-svn: 35876
 2007-04-11 02:02:09 +00:00
Chris Lattner
4ea7a156ba Simplify SROA conversion to integer in some ways, make it more general in others. 
We now tolerate small amounts of undefined behavior, better emulating what
would happen if the transaction actually occurred in memory.  This fixes
SingleSource/UnitTests/2007-04-10-BitfieldTest.c on PPC, at least until
Devang gets a chance to fix the CFE from doing undefined things with bitfields :)

llvm-svn: 35875
 2007-04-11 00:57:54 +00:00
Reid Spencer
e580735108 Make isDynamicLibrary detect more than just an ELF file. 
llvm-svn: 35874
 2007-04-11 00:49:39 +00:00
Bill Wendling
3b1189afbf Add support for our first SSSE3 instruction "pmulhrsw". 
llvm-svn: 35869
 2007-04-10 22:10:25 +00:00
Chris Lattner
60f3ece40f new micro optzn 
llvm-svn: 35867
 2007-04-10 21:14:01 +00:00
Chris Lattner
3bbd376057 restore support for negative strides 
llvm-svn: 35859
 2007-04-10 03:48:29 +00:00
Chris Lattner
e2444f7ec8 apparently some people commit without building the tree, or they forget to 
commit a LOT of files.

llvm-svn: 35858
 2007-04-10 03:20:39 +00:00
Chris Lattner
8557e71577 unbreak the build :( 
llvm-svn: 35857
 2007-04-10 03:18:19 +00:00
Jeff Cohen
9bc2960be6 Fix build problem. 
llvm-svn: 35856
 2007-04-10 03:10:46 +00:00
Chris Lattner
fe1860b138 Strengthen the boundary conditions of this fold, implementing 
InstCombine/set.ll:test25

llvm-svn: 35852
 2007-04-09 23:52:13 +00:00
Jeff Cohen
bd7d060e79 No longer needed. 
llvm-svn: 35850
 2007-04-09 23:42:32 +00:00
Owen Anderson
5d0148ae7c Re-constify things that don't break the build. Last patch in this 
series, I promise.

llvm-svn: 35848
 2007-04-09 23:38:18 +00:00
Chris Lattner
461f7ed33b remove dead target hooks. 
llvm-svn: 35847
 2007-04-09 23:34:08 +00:00
Chris Lattner
98199016ae remove dead target hooks 
llvm-svn: 35846
 2007-04-09 23:33:39 +00:00
Chris Lattner
3f9ff05309 remove some dead hooks 
llvm-svn: 35845
 2007-04-09 23:31:19 +00:00
Chris Lattner
78fffcb81b eliminate the last uses of some TLI methods. 
llvm-svn: 35844
 2007-04-09 23:29:07 +00:00
Owen Anderson
94e3511ef6 Unconst-ify stuff that broke the build. 
llvm-svn: 35843
 2007-04-09 23:08:26 +00:00
Owen Anderson
3d132f812a Const-ify some parameters, and some cosmetic cleanups. No functionality 
change.

llvm-svn: 35842
 2007-04-09 22:54:50 +00:00
Owen Anderson
148566d2e3 Tabs -> Spaces 
llvm-svn: 35841
 2007-04-09 22:31:43 +00:00
Chris Lattner
ae6e2c0ee5 remove some dead target hooks, subsumed by isLegalAddressingMode 
llvm-svn: 35840
 2007-04-09 22:27:04 +00:00
Owen Anderson
6f5fe179cc Improve some _slow_ behavior introduced in my patches the last few days. 
llvm-svn: 35839
 2007-04-09 22:25:09 +00:00
Chris Lattner
87c89cafb2 switch LSR to use isLegalAddressingMode instead of other simpler hooks 
llvm-svn: 35837
 2007-04-09 22:20:14 +00:00
Devang Patel
70205cceea Check _all_ PHINodes. 
llvm-svn: 35836
 2007-04-09 22:20:10 +00:00
Chris Lattner
b4ef9c8be3 Fix a bug in PPCTargetLowering::isLegalAddressingMode, scales other than 0/1/2 
are always unsupported.

llvm-svn: 35835
 2007-04-09 22:10:05 +00:00
Anton Korobeynikov
6e6b2d493a Use integer log for metric calculation 
llvm-svn: 35834
 2007-04-09 21:57:03 +00:00
Devang Patel
5392489e86 Insert new pre-header before new header. Original pre-header may 
happen to be an entry, in such case, it is not a good idea to
insert new block before entry.

Also fix typo in assertion check.

llvm-svn: 35833
 2007-04-09 21:40:43 +00:00
Chris Lattner
d186d37694 Fix a bug where calling materializeModule could corrupt the module, reading 
multiple copies of the function into the Function*.

llvm-svn: 35831
 2007-04-09 20:28:40 +00:00
Devang Patel
cdea453adb Preserve canonical loop form. 
llvm-svn: 35829
 2007-04-09 20:19:46 +00:00
Jeff Cohen
f489bef844 When the number of elements is zero, don't malloc 32GB on 64-bit systems. 
Fixes unexpected failures on FreeBSD/amd64 of:
  CFrontend/2005-09-24-BitFieldCrash.c:
  CFrontend/2007-02-04-EmptyStruct.c:
  CFrontend/2007-03-26-ZeroWidthBitfield.c:
  CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll:

llvm-svn: 35828
 2007-04-09 19:26:30 +00:00
Reid Spencer
60da7b09e7 Don't link against System or Support library. These things will already 
be in the opt tool.

llvm-svn: 35827
 2007-04-09 19:17:47 +00:00
Devang Patel
9263a797b3 Do not create new pre-header. Reuse original pre-header. 
llvm-svn: 35825
 2007-04-09 19:04:21 +00:00
Reid Spencer
93a57ef458 For PR1146: 
* Add ParamAttrs to InvokeInst class too.
* Make sure all initializes of ParamAttrs in CallInst and InvokeInst are 0
* Destruct the ParamAttrs in Call/Invoke destructors to avoid memory
  leaks. This will change when ParamAttrsList is uniquified but needs to
  be correct until then.

llvm-svn: 35824
 2007-04-09 18:00:57 +00:00
Reid Spencer
1acc089771 Remove a memory leak, until ParamAttrsList is uniqued. 
llvm-svn: 35823
 2007-04-09 17:20:18 +00:00
Devang Patel
e038420dc6 Simpler for() loops. 
llvm-svn: 35822
 2007-04-09 17:09:13 +00:00
Devang Patel
dd269ce747 Fix future bug. Of course, Chris spotted this. 
Handle Argument or Undef as an incoming PHI value.

llvm-svn: 35821
 2007-04-09 16:41:46 +00:00
Devang Patel
ba5018aaff More cosmetic changes. 
llvm-svn: 35820
 2007-04-09 16:21:29 +00:00
Devang Patel
f66f3dd962 Only cosmetic changes. Zero functionality Change. 
llvm-svn: 35819
 2007-04-09 16:11:48 +00:00
Reid Spencer
d2380cfb76 For PR1146: 
* Add ParamAttrList pointers to Function and CallInst.
* Move the implementation of ParamAttrList from Type.cpp to Function.cpp

llvm-svn: 35818
 2007-04-09 15:01:12 +00:00
Jeff Cohen
b3d61e6c05 Unbreak VC++ build. 
llvm-svn: 35817
 2007-04-09 14:32:59 +00:00
Anton Korobeynikov
6ee97ee42a Next stage into switch lowering refactoring 
1. Fix some bugs in the jump table lowering threshold
2. Implement much better metric for optimal pivot selection
3. Tune thresholds for different lowering methods
4. Implement shift-and trick for lowering small (<machine word
length) cases with few destinations. Good testcase will follow.

llvm-svn: 35816
 2007-04-09 12:31:58 +00:00
Chris Lattner
730f5588be Convert ImmediateDominators::DFSPass from being recursive to being iterative. 
llvm-svn: 35815
 2007-04-09 06:44:42 +00:00
Reid Spencer
2660b8dccb For PR1146: 
Adapt handling of parameter attributes to use the new ParamAttrsList class.

llvm-svn: 35814
 2007-04-09 06:17:21 +00:00
Reid Spencer
3ffd70d6e4 Regenerate 
llvm-svn: 35813
 2007-04-09 06:16:21 +00:00
Reid Spencer
b43eb600c2 For PR1146: 
Use ParamAttrsList for writing parameter attributes. Since they are sparse
now, we also write them sparsely (saves a few bytes). Unfortunately, this
is a bytecode file format change.

llvm-svn: 35811
 2007-04-09 06:14:31 +00:00
Reid Spencer
1f674acbdf For PR1146: 
Simplify construction of FunctionType to use default arguments.

llvm-svn: 35810
 2007-04-09 06:12:07 +00:00
Reid Spencer
a2b16b4ee5 For PR1146: 
Parameter attributes can now be defaulted for intrinsics.

llvm-svn: 35809
 2007-04-09 06:11:23 +00:00
Reid Spencer
3d414b473d For PR1146: 
Adjust writing of parameter attributes to use ParamAttrList class.

llvm-svn: 35808
 2007-04-09 06:10:42 +00:00
Chris Lattner
884f49c47e minor cleanups 
llvm-svn: 35807
 2007-04-09 06:10:06 +00:00
Reid Spencer
6bc0205a2a For PR1146: 
Move parameter attributes functionality to ParamAttrsList class.

llvm-svn: 35806
 2007-04-09 06:07:52 +00:00
Chris Lattner
de148c7887 move a bunch of register constraints from being handled by 
getRegClassForInlineAsmConstraint to being handled by
getRegForInlineAsmConstraint.  This allows us to let the llvm register allocator
allocate, which gives us better code.  For example, X86/2007-01-29-InlineAsm-ir.ll
used to compile to:

_run_init_process:
        subl $4, %esp
        movl %ebx, (%esp)
        xorl %ebx, %ebx
        movl $11, %eax
        movl %ebx, %ecx
        movl %ebx, %edx
        # InlineAsm Start
        push %ebx ; movl %ebx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

Now we get:
_run_init_process:
        xorl %ecx, %ecx
        movl $11, %eax
        movl %ecx, %edx
        # InlineAsm Start
        push %ebx ; movl %ecx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

llvm-svn: 35804
 2007-04-09 05:49:22 +00:00
Chris Lattner
b940a717ac implement support for CodeGen/X86/inline-asm-x-scalar.ll:test3 - i32/i64 values 
used with x constraints.

llvm-svn: 35803
 2007-04-09 05:31:48 +00:00
Chris Lattner
13a530ec7f implement CodeGen/X86/inline-asm-x-scalar.ll:test3 
llvm-svn: 35802
 2007-04-09 05:31:20 +00:00
Chris Lattner
c360f69afe add some assertions 
llvm-svn: 35800
 2007-04-09 05:23:13 +00:00
Chris Lattner
e2d3bf8ecf implement CodeGen/X86/inline-asm-x-scalar.ll 
llvm-svn: 35799
 2007-04-09 05:11:28 +00:00
Owen Anderson
e4c29f0b01 Move isReachableFromEntry out of line to avoid an unnecessary #include 
llvm-svn: 35797
 2007-04-09 04:07:36 +00:00
Chris Lattner
b3c4c64197 Fix a bug that caused alignment information to occasionally get stripped off 
of an allocation instruction when writing to bytecode.

llvm-svn: 35796
 2007-04-09 03:37:36 +00:00
Reid Spencer
4ede44609e Regenerate 
llvm-svn: 35795
 2007-04-09 01:56:05 +00:00
Reid Spencer
93d41cc941 Drop the implementation keyword. 
llvm-svn: 35794
 2007-04-09 01:55:42 +00:00
Chris Lattner
218d43af10 Fix PR1304 and Transforms/InstCombine/2007-04-08-SingleEltVectorCrash.ll 
llvm-svn: 35792
 2007-04-09 01:37:55 +00:00
Chris Lattner
958d804293 Fix a bug introduced with my previous patch, where it didn't correctly handle 
instructions which replace themselves when FI's are rewritten (common on ppc).
This fixes CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll

llvm-svn: 35789
 2007-04-09 01:19:33 +00:00
Chris Lattner
b3d105a4f9 Eliminate useless insertelement instructions. This implements 
Transforms/InstCombine/vec_insertelt.ll and fixes PR1286.

We now compile the code from that bug into:

_foo:
        movl 4(%esp), %eax
        movdqa (%eax), %xmm0
        movl 8(%esp), %ecx
        psllw (%ecx), %xmm0
        movdqa %xmm0, (%eax)
        ret

instead of:

_foo:
        subl $4, %esp
        movl %ebp, (%esp)
        movl %esp, %ebp
        movl 12(%ebp), %eax
        movdqa (%eax), %xmm0
        #IMPLICIT_DEF %eax
        pinsrw $2, %eax, %xmm0
        xorl %ecx, %ecx
        pinsrw $3, %ecx, %xmm0
        pinsrw $4, %eax, %xmm0
        pinsrw $5, %ecx, %xmm0
        pinsrw $6, %eax, %xmm0
        pinsrw $7, %ecx, %xmm0
        movl 8(%ebp), %eax
        movdqa (%eax), %xmm1
        psllw %xmm0, %xmm1
        movdqa %xmm1, (%eax)
        movl %ebp, %esp
        popl %ebp
        ret

woo :)

llvm-svn: 35788
 2007-04-09 01:11:16 +00:00
Owen Anderson
f9a432a613 Cleanup some from my DomSet-removal changes. Add a new 
isReachableFromEntry
test to ETForest to factor a common test out of code.

llvm-svn: 35786
 2007-04-09 00:52:49 +00:00
Chris Lattner
1a746d3b8e Fix CodeGen/Generic/2007-04-08-MultipleFrameIndices.ll and PR1308: 
some instructions can have multiple frame indices in them.  If this happens,
rewrite all of them.

llvm-svn: 35785
 2007-04-09 00:46:10 +00:00
Chris Lattner
5f8b0c2acc Fix PR1316 
llvm-svn: 35783
 2007-04-09 00:33:58 +00:00
Reid Spencer
aedaf87e5e No functional change, this is just easier to read and debug. 
llvm-svn: 35782
 2007-04-08 23:58:41 +00:00
Chris Lattner
f9506a185b Fix for CodeGen/X86/2007-04-08-InlineAsmCrash.ll and PR1314 
llvm-svn: 35779
 2007-04-08 22:23:26 +00:00
Owen Anderson
4b323657b9 Remove DomSet completely. This concludes work on PR1171. 
llvm-svn: 35775
 2007-04-08 21:30:05 +00:00
Reid Spencer
82c0c6353b Make sure temporary data is not used past its life span. 
llvm-svn: 35773
 2007-04-08 20:10:14 +00:00
Chris Lattner
4ed32d0891 Fix a typo that broke SimplifyLibCalls/SPrintF.ll (pr1315) 
llvm-svn: 35768
 2007-04-08 18:11:26 +00:00
Chris Lattner
1a1b798eb5 reenable this xform, whoops :) 
llvm-svn: 35765
 2007-04-08 08:01:49 +00:00
Chris Lattner
1760b42378 Fix regression on Instcombine/apint-or2.ll 
llvm-svn: 35763
 2007-04-08 07:55:22 +00:00
Chris Lattner
d435e0bfd2 Generalize the code that handles (A&B)|(A&C) to work where B/C are not constants. 
Add a new xform to simplify (A&B)|(~A&C).  THis implements InstCombine/or2.ll:test1

llvm-svn: 35760
 2007-04-08 07:47:01 +00:00
Chris Lattner
34464bdf2b implement a fixme: move optimizations for fwrite out of fputs into a new 
fwrite optimizer.

llvm-svn: 35758
 2007-04-08 07:00:35 +00:00
Nick Lewycky
71592d1ef2 Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson. 
llvm-svn: 35757
 2007-04-08 01:04:30 +00:00
Nick Lewycky
26652f5681 Don't crash when encountering a BasicBlock that hasn't been registered yet. 
llvm-svn: 35756
 2007-04-08 01:02:12 +00:00
Chris Lattner
16fe035aa4 Significantly simplify the clients of GetConstantStringInfo, by having it 
just return the string itself.

llvm-svn: 35755
 2007-04-07 21:58:02 +00:00
Chris Lattner
5b3be230d4 Fix problems in the sprintf optimizer 
llvm-svn: 35754
 2007-04-07 21:17:51 +00:00
Chris Lattner
99a7ea0b00 Change CastToCStr to take a pointer instead of a reference. 
Fix some miscompilations in fprintf optimizer.

llvm-svn: 35753
 2007-04-07 21:04:50 +00:00
Jeff Cohen
d40c15afaa Unbreak VC++ build. 
llvm-svn: 35751
 2007-04-07 20:47:27 +00:00
Chris Lattner
fcc6fe0a9c Fix an off-by-one error that broke Prolangs/deriv2 with llc on x86 
and Prolangs-C/cdecl

llvm-svn: 35749
 2007-04-07 20:19:08 +00:00
Reid Spencer
fb17dbb809 Avoid a useless temporary constrution. 
llvm-svn: 35747
 2007-04-07 19:51:45 +00:00
Reid Spencer
845c291c87 Fix another PathWithStatus issue. 
llvm-svn: 35744
 2007-04-07 19:45:30 +00:00
Reid Spencer
875a2bc4db For PR1291: 
Change uses of sys::Path class to sys::PathWithStatus in those places where
the file status information is needed.

llvm-svn: 35743
 2007-04-07 18:53:16 +00:00
Reid Spencer
14fb379888 For PR1291: 
Implement the PathWithStatus class and its use throughout lib/System.

llvm-svn: 35742
 2007-04-07 18:52:17 +00:00
Owen Anderson
7cf9d12f2e Add DomSet back, and revert the changes to LoopSimplify. Apparently the 
ETForest updating mechanisms don't work as I thought they did.  These changes
will be reapplied once the issue is worked out.

llvm-svn: 35741
 2007-04-07 18:23:27 +00:00
Zhou Sheng
c2cfa6111d Eliminate unnecessary APInt construction. 
llvm-svn: 35740
 2007-04-07 17:48:27 +00:00
Zhou Sheng
7bcd47dbc1 Make APInt variables do the computation stuffs instead of 
ConstantExpr::getXX if possible.

llvm-svn: 35738
 2007-04-07 17:40:57 +00:00
Zhou Sheng
21dfc2107a Eliminate unnecessary zext/trunc stuffs. 
llvm-svn: 35737
 2007-04-07 17:12:38 +00:00
Nick Lewycky
e6cb3e2433 Add support for cast instructions. 
llvm-svn: 35734
 2007-04-07 15:48:32 +00:00
Nick Lewycky
ec51e934ef Add signExtend to ConstantRange, to complement zeroExtend and truncate. 
llvm-svn: 35733
 2007-04-07 15:41:33 +00:00
Owen Anderson
85b0e20f2a Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
llvm-svn: 35731
 2007-04-07 07:17:27 +00:00
Owen Anderson
177b1a6aea Completely purge DomSet from LoopSimplify. This is part of the 
continuing work on PR1171.

llvm-svn: 35730
 2007-04-07 06:56:47 +00:00
Owen Anderson
e2add101a4 BreakCriticalEdges does still preserve DominatorTree. 
llvm-svn: 35729
 2007-04-07 05:57:09 +00:00
Owen Anderson
eb184ee17b Expunge DomSet from BreakCriticalEdges. This is part of the continuing 
work for PR 1171.

llvm-svn: 35728
 2007-04-07 05:49:29 +00:00
Chris Lattner
c1bce783e8 Fix a bug in my earlier commit which exposed positional options backwards. 
This fixes llvm-ar.

llvm-svn: 35727
 2007-04-07 05:38:53 +00:00
Owen Anderson
41bf50021d Expunge DomSet from CodeExtractor. This is part of the continuing work 
on PR1171.

llvm-svn: 35726
 2007-04-07 05:31:27 +00:00
Nick Lewycky
3e77af40ff Support NE inequality in ValueRanges. 
llvm-svn: 35724
 2007-04-07 04:49:12 +00:00
Owen Anderson
5403a248af Expunge DomSet from LoadValueNumbering. This is part of the continuing 
work on PR1171.

llvm-svn: 35723
 2007-04-07 04:43:07 +00:00
Owen Anderson
54c7efee4d Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain. 
This is the beginning of work for PR1171.

llvm-svn: 35720
 2007-04-07 04:37:14 +00:00
Nick Lewycky
7fbec59fb4 Cleanup. Refactor out the applying of value ranges to its own method. 
llvm-svn: 35719
 2007-04-07 03:36:51 +00:00
Nick Lewycky
80cf96b3f8 Use TargetData to find the size of a type. 
llvm-svn: 35718
 2007-04-07 03:16:12 +00:00
Nick Lewycky
3ddf638983 Strengthen icmp snuggling by doing 'compare-or-equal-to' to 'compare' 
first and then range testing second.

llvm-svn: 35715
 2007-04-07 02:30:14 +00:00
Devang Patel
562df7f986 Add loop rotation pass. 
llvm-svn: 35714
 2007-04-07 01:25:15 +00:00