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authorBob Wilson <bob.wilson@apple.com>2010-10-22 21:41:48 +0000
committerBob Wilson <bob.wilson@apple.com>2010-10-22 21:41:48 +0000
commit364f17c47162a657bb0c3516588cdfc5297664f0 (patch)
tree0918a127f169b730b88d18900f3ee4227451d088 /lib/Transforms
parentb179b46cc558c720d23a066c768bad71f975eb93 (diff)
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Teach instcombine to set the alignment arguments for NEON load/store intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117154 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
-rw-r--r--lib/Transforms/InstCombine/InstCombineCalls.cpp26
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCalls.cpp b/lib/Transforms/InstCombine/InstCombineCalls.cpp
index ed078ec..d53f329 100644
--- a/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -702,6 +702,32 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
}
break;
+ case Intrinsic::arm_neon_vld1:
+ case Intrinsic::arm_neon_vld2:
+ case Intrinsic::arm_neon_vld3:
+ case Intrinsic::arm_neon_vld4:
+ case Intrinsic::arm_neon_vld2lane:
+ case Intrinsic::arm_neon_vld3lane:
+ case Intrinsic::arm_neon_vld4lane:
+ case Intrinsic::arm_neon_vst1:
+ case Intrinsic::arm_neon_vst2:
+ case Intrinsic::arm_neon_vst3:
+ case Intrinsic::arm_neon_vst4:
+ case Intrinsic::arm_neon_vst2lane:
+ case Intrinsic::arm_neon_vst3lane:
+ case Intrinsic::arm_neon_vst4lane: {
+ unsigned MemAlign = GetOrEnforceKnownAlignment(II->getArgOperand(0));
+ unsigned AlignArg = II->getNumArgOperands() - 1;
+ ConstantInt *IntrAlign = dyn_cast<ConstantInt>(II->getArgOperand(AlignArg));
+ if (IntrAlign && IntrAlign->getZExtValue() < MemAlign) {
+ II->setArgOperand(AlignArg,
+ ConstantInt::get(Type::getInt32Ty(II->getContext()),
+ MemAlign, false));
+ return II;
+ }
+ break;
+ }
+
case Intrinsic::stackrestore: {
// If the save is right next to the restore, remove the restore. This can
// happen when variable allocas are DCE'd.