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Fix for pr2093: direct operands aren't necessarily addresses, so don't

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try to simplify them.

llvm-svn: 47610
This commit is contained in:
Eli Friedman 2008-02-26 18:37:49 +00:00
parent 9d19e558b7
commit 1f2cabfbcf
2 changed files with 19 additions and 1 deletions
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3
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -970,7 +970,8 @@ bool CodeGenPrepare::OptimizeInlineAsmInst(Instruction *I, CallSite CS,
// Compute the constraint code and ConstraintType to use.
OpInfo.ComputeConstraintToUse(*TLI);
if (OpInfo.ConstraintType == TargetLowering::C_Memory) {
if (OpInfo.ConstraintType == TargetLowering::C_Memory &&
OpInfo.isIndirect) {
Value *OpVal = OpInfo.CallOperandVal;
MadeChange |= OptimizeLoadStoreInst(I, OpVal, OpVal->getType(),
SunkAddrs);

17
test/CodeGen/X86/2008-02-26-AsmDirectMemOp.ll Normal file
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@ -0,0 +1,17 @@
; RUN: llvm-as < %s | llc -march=x86
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
target triple = "i386-pc-linux-gnu"
define void @dct_unquantize_h263_intra_mmx(i16* %block, i32 %n, i32 %qscale) nounwind {
entry:
%tmp1 = shl i32 %qscale, 1 ; <i32> [#uses=1]
br i1 false, label %bb46, label %bb59
bb46: ; preds = %entry
ret void
bb59: ; preds = %entry
tail call void asm sideeffect "movd $1, %mm6 \0A\09packssdw %mm6, %mm6 \0A\09packssdw %mm6, %mm6 \0A\09movd $2, %mm5 \0A\09pxor %mm7, %mm7 \0A\09packssdw %mm5, %mm5 \0A\09packssdw %mm5, %mm5 \0A\09psubw %mm5, %mm7 \0A\09pxor %mm4, %mm4 \0A\09.align 1<<4\0A\091: \0A\09movq ($0, $3), %mm0 \0A\09movq 8($0, $3), %mm1 \0A\09pmullw %mm6, %mm0 \0A\09pmullw %mm6, %mm1 \0A\09movq ($0, $3), %mm2 \0A\09movq 8($0, $3), %mm3 \0A\09pcmpgtw %mm4, %mm2 \0A\09pcmpgtw %mm4, %mm3 \0A\09pxor %mm2, %mm0 \0A\09pxor %mm3, %mm1 \0A\09paddw %mm7, %mm0 \0A\09paddw %mm7, %mm1 \0A\09pxor %mm0, %mm2 \0A\09pxor %mm1, %mm3 \0A\09pcmpeqw %mm7, %mm0 \0A\09pcmpeqw %mm7, %mm1 \0A\09pandn %mm2, %mm0 \0A\09pandn %mm3, %mm1 \0A\09movq %mm0, ($0, $3) \0A\09movq %mm1, 8($0, $3) \0A\09add $$16, $3 \0A\09jng 1b \0A\09", "r,imr,imr,r,~{dirflag},~{fpsr},~{flags},~{memory}"( i16* null, i32 %tmp1, i32 0, i32 0 ) nounwind
ret void
}