Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.468 -> 1.469
---
Log message:
Turn x86 unaligned load/store intrinsics into aligned load/store instructions
if the pointer is known aligned.
---
Diffs of the changes: (+16 -1)
InstructionCombining.cpp | 17 ++++++++++++++++-
1 files changed, 16 insertions(+), 1 deletion(-)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.468
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.469
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.468 Sat Apr 15
19:51:47 2006
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Mon Apr 17 17:26:56 2006
@@ -5471,7 +5471,11 @@
default: break;
case Intrinsic::ppc_altivec_lvx:
case Intrinsic::ppc_altivec_lvxl:
- // Turn lvx -> load if the pointer is known aligned.
+ case Intrinsic::x86_sse_loadu_ps:
+ case Intrinsic::x86_sse2_loadu_pd:
+ case Intrinsic::x86_sse2_loadu_dq:
+ // Turn PPC lvx -> load if the pointer is known aligned.
+ // Turn X86 loadups -> load if the pointer is known aligned.
if (GetKnownAlignment(II->getOperand(1), TD) >= 16) {
Value *Ptr = InsertCastBefore(II->getOperand(1),
PointerType::get(II->getType()), CI);
@@ -5487,6 +5491,17 @@
return new StoreInst(II->getOperand(1), Ptr);
}
break;
+ case Intrinsic::x86_sse_storeu_ps:
+ case Intrinsic::x86_sse2_storeu_pd:
+ case Intrinsic::x86_sse2_storeu_dq:
+ case Intrinsic::x86_sse2_storel_dq:
+ // Turn X86 storeu -> store if the pointer is known aligned.
+ if (GetKnownAlignment(II->getOperand(1), TD) >= 16) {
+ const Type *OpPtrTy = PointerType::get(II->getOperand(2)->getType());
+ Value *Ptr = InsertCastBefore(II->getOperand(1), OpPtrTy, CI);
+ return new StoreInst(II->getOperand(2), Ptr);
+ }
+ break;
case Intrinsic::ppc_altivec_vperm:
// Turn vperm(V1,V2,mask) -> shuffle(V1,V2,mask) if mask is a constant.
if (ConstantPacked *Mask = dyn_cast<ConstantPacked>(II->getOperand(3))) {
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