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15335 Commits

Author SHA1 Message Date
Chris Lattner
67ea3292d2 pull operand string into the multiclass 
llvm-svn: 30785
 2006-10-07 05:13:26 +00:00
Chris Lattner
e234302d01 Remove RSQRTSS[rm] RCPSS[rm], which are dead. 
Introduce SS_IntUnary, a multiclass to replace SS_Int[rm].

llvm-svn: 30784
 2006-10-07 05:09:48 +00:00
Chris Lattner
22137d1891 eliminate redundancy 
llvm-svn: 30783
 2006-10-07 04:52:09 +00:00
Chris Lattner
f5758df6cd Fix a bug legalizing zero-extending i64 loads into 32-bit loads. The bottom 
part was always forced to be sextload, even when we needed an zextload.

llvm-svn: 30782
 2006-10-07 00:58:36 +00:00
Chris Lattner
f5b9b4a4b2 Set the jt section 
llvm-svn: 30781
 2006-10-06 22:52:33 +00:00
Chris Lattner
3f92c791b4 initialize ivar 
llvm-svn: 30780
 2006-10-06 22:52:08 +00:00
Chris Lattner
d5f5a433b2 If a target uses a GOT, put it in the jt data section, not the text 
section.  This will fix alpha when Andrew implements
AlphaTargetMachine::getTargetLowering().

llvm-svn: 30779
 2006-10-06 22:50:56 +00:00
Chris Lattner
2ca01febcf Alpha uses a got 
llvm-svn: 30778
 2006-10-06 22:46:51 +00:00
Chris Lattner
b5b96302f2 jump tables handle pic 
llvm-svn: 30776
 2006-10-06 22:32:29 +00:00
Chris Lattner
ad60994822 print labels even if a MBB doesn't have a corresponding LLVM BB, just don't 
print the LLVM BB label.

llvm-svn: 30775
 2006-10-06 21:28:17 +00:00
Rafael Espindola
a96c205e12 add optional input flag to FMRRD 
llvm-svn: 30774
 2006-10-06 20:33:26 +00:00
Rafael Espindola
54301ca490 add support for calling functions that return double 
llvm-svn: 30771
 2006-10-06 19:10:05 +00:00
Evan Cheng
6d15f83d46 80 col violation. 
llvm-svn: 30770
 2006-10-06 18:57:51 +00:00
Chris Lattner
399106d8f8 ugly codegen 
llvm-svn: 30769
 2006-10-06 17:39:34 +00:00
Chris Lattner
0d39b3a4cf Fix a miscompilation of: 
long long foo(long long X) {
  return (long long)(signed char)(int)X;
}

Instead of:

_foo:
        extsb r2, r4
        srawi r3, r4, 31
        mr r4, r2
        blr

we now produce:

_foo:
        extsb r4, r4
        srawi r3, r4, 31
        blr

This fixes a miscompilation in ConstantFolding.cpp.

llvm-svn: 30768
 2006-10-06 17:34:12 +00:00
Rafael Espindola
d870b158b3 fix some bugs affecting functions with no arguments 
llvm-svn: 30767
 2006-10-06 17:26:30 +00:00
Rafael Espindola
f35563ff66 fix the stack alignment 
llvm-svn: 30766
 2006-10-06 14:29:47 +00:00
Rafael Espindola
f679bdf121 add support for calling functions that have double arguments 
llvm-svn: 30765
 2006-10-06 12:50:22 +00:00
Evan Cheng
9ce3d493f0 Still need to support -mcpu=<> or cross compilation will fail. Doh. 
llvm-svn: 30764
 2006-10-06 09:17:41 +00:00
Evan Cheng
6fc0ae2136 Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support. 
llvm-svn: 30763
 2006-10-06 08:21:07 +00:00
Evan Cheng
35a3337e1d It appears the inline asm in GetCpuIDAndInfo() may clobbers some registers if it isn't inlined (at < -O3). Force it to be inlined. 
llvm-svn: 30762
 2006-10-06 07:50:56 +00:00
Chris Lattner
5fc3bb074c MachineBasicBlock::splice was incorrectly updating parent pointers on 
instructions.

llvm-svn: 30760
 2006-10-06 01:12:44 +00:00
Evan Cheng
275825195a Make use of getStore(). 
llvm-svn: 30759
 2006-10-05 23:01:46 +00:00
Evan Cheng
c9e079d0c1 Add getStore() helper function to create ISD::STORE nodes. 
llvm-svn: 30758
 2006-10-05 22:57:11 +00:00
Chris Lattner
eca9897bd5 Don't crash if an MBB doesn't have an LLVM BB 
llvm-svn: 30757
 2006-10-05 21:40:14 +00:00
Rafael Espindola
2e4743b6d1 use a const ref for passing the vector to ArgumentLayout 
llvm-svn: 30756
 2006-10-05 17:46:48 +00:00
Rafael Espindola
f0e4950ef4 implement a ArgumentLayout class to factor code common to LowerFORMAL_ARGUMENTS and LowerCALL 
implement FMDRR
add support for f64 function arguments

llvm-svn: 30754
 2006-10-05 16:48:49 +00:00
Jim Laskey
3f9f064fd1 Alias analysis code clean ups. 
llvm-svn: 30753
 2006-10-05 15:07:25 +00:00
Chris Lattner
513ba43053 add a new SimplifyDemandedVectorElts method, which works similarly to 
SimplifyDemandedBits.  The idea is that some operations can be simplified if
not all of the computed elements are needed.  Some targets (like x86) have a
large number of intrinsics that operate on a single element, but pass other
elts through unmodified.  If those other elements are not needed, the
intrinsics can be simplified to scalar operations, and insertelement ops can
be removed.

This turns (f.e.):

ushort %Convert_sse(float %f) {
        %tmp = insertelement <4 x float> undef, float %f, uint 0                ; <<4 x float>> [#uses=1]
        %tmp10 = insertelement <4 x float> %tmp, float 0.000000e+00, uint 1             ; <<4 x float>> [#uses=1]
        %tmp11 = insertelement <4 x float> %tmp10, float 0.000000e+00, uint 2           ; <<4 x float>> [#uses=1]
        %tmp12 = insertelement <4 x float> %tmp11, float 0.000000e+00, uint 3           ; <<4 x float>> [#uses=1]
        %tmp28 = tail call <4 x float> %llvm.x86.sse.sub.ss( <4 x float> %tmp12, <4 x float> < float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp37 = tail call <4 x float> %llvm.x86.sse.mul.ss( <4 x float> %tmp28, <4 x float> < float 5.000000e-01, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp37, <4 x float> < float 6.553500e+04, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> zeroinitializer )          ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

into:

ushort %Convert_sse(float %f) {
entry:
        %tmp28 = sub float %f, 1.000000e+00             ; <float> [#uses=1]
        %tmp37 = mul float %tmp28, 5.000000e-01         ; <float> [#uses=1]
        %tmp375 = insertelement <4 x float> undef, float %tmp37, uint 0         ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp375, <4 x float> < float 6.553500e+04, float undef, float undef, float undef > )           ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> < float 0.000000e+00, float undef, float undef, float undef > )            ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

which improves codegen from:

_Convert_sse:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret

to:

_Convert_sse:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        movss LCPI1_2, %xmm1
        minss %xmm1, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret


This is just a first step, it can be extended in many ways.  Testcase here:
Transforms/InstCombine/vec_demanded_elts.ll

llvm-svn: 30752
 2006-10-05 06:55:50 +00:00
Chris Lattner
14ad447136 Add insertelement/extractelement helper ctors. 
llvm-svn: 30750
 2006-10-05 06:24:58 +00:00
Chris Lattner
7f98896c02 Lower some min/max idioms to minss/maxss when unsafe fp math is enabled. 
llvm-svn: 30748
 2006-10-05 04:11:26 +00:00
Chris Lattner
08da1a510d Don't bother setting JumpTableTextSection, it is about to disappear 
llvm-svn: 30745
 2006-10-05 03:13:59 +00:00
Chris Lattner
4f41b86e7f Emit pic jumptables to the same section that the function is emitted to, 
allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll

llvm-svn: 30744
 2006-10-05 03:13:28 +00:00
Chris Lattner
068190eb91 Pass the MachineFunction into EmitJumpTableInfo. 
llvm-svn: 30742
 2006-10-05 03:01:21 +00:00
Chris Lattner
75e572ab20 implement and use getSectionForFunction 
llvm-svn: 30741
 2006-10-05 02:51:36 +00:00
Chris Lattner
cc21d20348 Use getSectionForFunction. 
llvm-svn: 30740
 2006-10-05 02:49:23 +00:00
Chris Lattner
d62ecab2e3 Use getSectionForFunction 
llvm-svn: 30739
 2006-10-05 02:48:40 +00:00
Chris Lattner
a293b73042 use getSectionForFunction to decide which section to emit code into 
llvm-svn: 30738
 2006-10-05 02:47:13 +00:00
Chris Lattner
758352e9b1 Implement getSectionForFunction, use it when printing function body. 
llvm-svn: 30737
 2006-10-05 02:43:52 +00:00
Chris Lattner
b92a46c4f6 move getSectionForFunction to AsmPrinter 
llvm-svn: 30736
 2006-10-05 02:42:47 +00:00
Chris Lattner
ca844c6695 Move getSectionForFunction to AsmPrinter, change it to return a string. 
llvm-svn: 30735
 2006-10-05 02:42:20 +00:00
Chris Lattner
0ca8a69c28 implement DarwinTargetAsmInfo::getSectionForFunction, use it when outputting 
function bodies

llvm-svn: 30733
 2006-10-05 00:35:50 +00:00
Chris Lattner
6ba6d0e937 Give TargetAsmInfo a virtual dtor, add a new getSectionForFunction method. 
llvm-svn: 30732
 2006-10-05 00:35:16 +00:00
Chris Lattner
2e10b0c095 emit jump table before debug info 
llvm-svn: 30731
 2006-10-05 00:26:05 +00:00
Chris Lattner
dd6343bd8d Always emit the jump table after the function so it's part of the same 'atom' 
as the function body.

llvm-svn: 30730
 2006-10-05 00:24:46 +00:00
Chris Lattner
f943ae3b8a getFilename/getDirectory shouldn't abort if the global has no init. This 
can happen on bugpoint reduced testcases f.e..

llvm-svn: 30729
 2006-10-04 23:06:26 +00:00
Evan Cheng
5974db9813 Fix some typos that can cause a flag value to have more than one use. 
llvm-svn: 30727
 2006-10-04 22:23:53 +00:00
Chris Lattner
ba99215347 Fix a static dtor issue 
llvm-svn: 30726
 2006-10-04 22:13:11 +00:00
Chris Lattner
d55928d5f6 Fix more static dtor issues 
llvm-svn: 30725
 2006-10-04 21:52:35 +00:00
Chris Lattner
de1ba6dc70 Fix some more static dtor issues. 
llvm-svn: 30724
 2006-10-04 21:49:37 +00:00
Evan Cheng
a77dd83caf Added option -disable-x86-shuffle-opti to disable X86 specific vector shuffle optimizations. 
llvm-svn: 30723
 2006-10-04 18:33:38 +00:00
Evan Cheng
54a8d5a6e0 Formating. 
llvm-svn: 30722
 2006-10-04 18:33:00 +00:00
Jim Laskey
dd74085b55 More extensive alias analysis. 
llvm-svn: 30721
 2006-10-04 16:53:27 +00:00
Jim Laskey
ef4d9453b9 More long term solution 
llvm-svn: 30720
 2006-10-04 10:40:15 +00:00
Chris Lattner
4ec6c298d8 Pattern match min/max nodes when we have sse. This implements 
CodeGen/X86/scalar_sse_minmax.ll

llvm-svn: 30719
 2006-10-04 06:57:07 +00:00
Chris Lattner
9d335a2a75 add a note :( 
llvm-svn: 30717
 2006-10-04 05:52:13 +00:00
Chris Lattner
c8225bc92a This case isn't implemented yet. It seems unlikely to be needed, but if it 
ever is, we want to get an assert instead of silent bad codegen.

llvm-svn: 30716
 2006-10-04 04:58:58 +00:00
Jim Laskey
b2dbdc5a38 Work around for some problems with templates. 
llvm-svn: 30715
 2006-10-04 01:43:13 +00:00
Evan Cheng
494e8e6971 Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an 
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
 2006-10-04 00:56:09 +00:00
Chris Lattner
11590ccf0c Use $( $| $) to represent alternatives in asm blocks instead of {|}. This 
is needed to support targets where {|} aren't special symbols.

llvm-svn: 30712
 2006-10-03 23:27:09 +00:00
Evan Cheng
7b52bbd60c Fix an obvious typo. 
llvm-svn: 30711
 2006-10-03 23:08:27 +00:00
Chris Lattner
8b03e5ec6b Bugfixes 
llvm-svn: 30709
 2006-10-03 20:19:23 +00:00
Chris Lattner
4dde0288ed Print the MBB ID # along with the bb tag in the -print-machine-instrs output. 
llvm-svn: 30708
 2006-10-03 20:17:24 +00:00
Chris Lattner
77aa419991 Provide a function that ensures MBB numbering is dense and inorder. This 
can be used by MachineFunctionPasses who need this property.

llvm-svn: 30706
 2006-10-03 19:18:57 +00:00
Nick Lewycky
f5ad6f5e2e Simplify logic further. 
Ensure that we copy KnownProperties before calling visitBasicBlock, else
we may leak properties into blocks where they don't belong.

llvm-svn: 30705
 2006-10-03 17:36:01 +00:00
Rafael Espindola
b77754ce4d Implement floating point constants 
llvm-svn: 30704
 2006-10-03 17:27:58 +00:00
Chris Lattner
72276ae651 Fix PR933 and CodeGen/X86/2006-10-02-BoolRetCrash.ll 
llvm-svn: 30703
 2006-10-03 17:18:42 +00:00
Nick Lewycky
89e4e147f3 Simplify, now that predsimplify depends on break-crit-edges. 
Fix SwitchInst where dest-block is the same as one of the cases.

llvm-svn: 30700
 2006-10-03 15:19:11 +00:00
Nick Lewycky
0da988d8a7 Move break-crit-edges before the predicate simplifier. Allows us to 
optimize in more cases.

llvm-svn: 30699
 2006-10-03 14:52:23 +00:00
Evan Cheng
816069dcbc Revert previous patch. Still breaking things. 
llvm-svn: 30698
 2006-10-03 07:26:07 +00:00
Bill Wendling
9b15198af4 Fix for PR929. The PHI nodes were being gone through for each instruction 
in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.

llvm-svn: 30697
 2006-10-03 07:20:20 +00:00
Chris Lattner
bfbe137f4c Fix PR932 and Analysis/Dominators/2006-10-02-BreakCritEdges.ll: 
The critical edge block dominates the dest block if the destblock dominates
all edges other than the one incoming from the critical edge.

llvm-svn: 30696
 2006-10-03 07:02:02 +00:00
Evan Cheng
79d9bdd28b These don't have immediate operands. 
llvm-svn: 30694
 2006-10-03 06:55:11 +00:00
Rafael Espindola
36c3e0028b fix the names of the 64bit fp register 
initial support for returning 64bit floating point numbers

llvm-svn: 30692
 2006-10-02 19:30:56 +00:00
Jim Laskey
97b1846c3e Debugging kruft 
llvm-svn: 30688
 2006-10-02 13:01:17 +00:00
Jim Laskey
3d44b337d9 Add ability to annotate (color) nodes in a viewGraph. 
llvm-svn: 30686
 2006-10-02 12:26:53 +00:00
Chris Lattner
06ed0910e5 Fixme is already done 
llvm-svn: 30685
 2006-10-01 22:46:33 +00:00
Chris Lattner
f0c3081939 Teach globalsmodref-aa to track scalar pointer global variables which point 
to unaliased allocations.  Use this information to disambiguate pointers loaded
from them.  This is a very common case, so it's worthwhile to handle efficiently.

This implements Analysis/GlobalsModRef/indirect-global.ll

llvm-svn: 30684
 2006-10-01 22:36:45 +00:00
Chris Lattner
ed1e28e373 Fix a bug from r1.391 of this file, where we checked the size instead of 
the alignment when promoting allocations.  This implements
InstCombine/cast.ll:test32

llvm-svn: 30682
 2006-10-01 19:40:58 +00:00
Chris Lattner
e3f1023f80 Fix debug output 
llvm-svn: 30680
 2006-09-30 23:32:50 +00:00
Chris Lattner
fd5a6b3445 Implement SRA of heap allocations. 
llvm-svn: 30679
 2006-09-30 23:32:09 +00:00
Chris Lattner
78e10ebf8a Add a version of the globalvariable ctor that inserts at a specific location. 
llvm-svn: 30677
 2006-09-30 21:31:26 +00:00
Chris Lattner
2521ed8492 Add some ifdef'd out debug info 
llvm-svn: 30676
 2006-09-30 19:40:30 +00:00
Evan Cheng
82dcacb63d Not needed. 
llvm-svn: 30674
 2006-09-29 22:05:10 +00:00
Rafael Espindola
1b39270c95 add floating point registers 
implement SINT_TO_FP

llvm-svn: 30673
 2006-09-29 21:20:16 +00:00
Chris Lattner
1d0cc59e5b Define this in the correct n/s 
llvm-svn: 30671
 2006-09-29 18:43:14 +00:00
Chris Lattner
5706d03998 Minor cleanups 
llvm-svn: 30668
 2006-09-28 23:45:00 +00:00
Chris Lattner
220e198fbe Now that ConstantBool::True/False are gone, we can modify Type.cpp to 
eliminate its static dtors, without having code that depends on order of
initialization.  Eliminate static ctors/dtors from Type.cpp.

llvm-svn: 30667
 2006-09-28 23:38:07 +00:00
Chris Lattner
155e6b8403 Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30666
 2006-09-28 23:36:21 +00:00
Chris Lattner
168061f13d Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30665
 2006-09-28 23:35:22 +00:00
Chris Lattner
c00ee152c9 Eliminate ConstantBool::True and ConstantBool::False. Instead, provideConstantBool::getTrue() and ConstantBool::getFalse(). 
llvm-svn: 30664
 2006-09-28 23:34:49 +00:00
Chris Lattner
04ad43b4de update comments 
llvm-svn: 30663
 2006-09-28 23:33:12 +00:00
Chris Lattner
b3b7cf3be6 wrap long lines 
llvm-svn: 30662
 2006-09-28 23:32:43 +00:00
Chris Lattner
8a986f39c2 Simplify some code, reformat break's 
llvm-svn: 30660
 2006-09-28 23:19:29 +00:00
Chris Lattner
c159d4a2a2 simplify code 
llvm-svn: 30659
 2006-09-28 23:17:41 +00:00
Chris Lattner
7851529456 Simplify some code 
llvm-svn: 30658
 2006-09-28 23:14:29 +00:00
Owen Anderson
18284b15a8 Another attempt at making ArgPromotion smarter. This patch no longer breaks Burg. 
llvm-svn: 30657
 2006-09-28 23:02:22 +00:00
Chris Lattner
d9c79b9349 simplify code 
llvm-svn: 30656
 2006-09-28 22:58:25 +00:00
Chris Lattner
3b8cae29c7 simplify code 
llvm-svn: 30655
 2006-09-28 22:50:29 +00:00
Chris Lattner
c1adb2f1d3 Shift amounts are always 32-bits, even in 64-bit mode. This fixes 
CodeGen/PowerPC/2006-09-28-shift_64.ll

llvm-svn: 30652
 2006-09-28 20:48:45 +00:00