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authorHideto Ueno <uenoku.tokotoko@gmail.com>2019-07-30 18:35:29 +0000
committerHideto Ueno <uenoku.tokotoko@gmail.com>2019-07-30 18:35:29 +0000
commit6e2be4eab3dd5dbcc1ec885656c56f5f0200091d (patch)
treef80e01f81daa7883f58847b6b9d284c888fa708f /llvm/lib/Analysis/ValueTracking.cpp
parent3b0769b7b49d8bc8708f2dea46d833cd83f42746 (diff)
downloadbcm5719-llvm-6e2be4eab3dd5dbcc1ec885656c56f5f0200091d.tar.gz
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[FunctionAttrs] Annotate "willreturn" for AssumeLikeInst
Summary: In D37215, AssumeLikeInstruction are regarded as `willreturn`. In this patch, annotation is added to those which don't have `willreturn` now(`sideeffect, object_size, experimental_widenable_condition`). Reviewers: jdoerfert, nikic, sstefan1 Reviewed By: nikic Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65455 llvm-svn: 367342
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
-rw-r--r--llvm/lib/Analysis/ValueTracking.cpp5
1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 4272f69ef81..343e738db81 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -4264,10 +4264,7 @@ bool llvm::isGuaranteedToTransferExecutionToSuccessor(const Instruction *I) {
// FIXME: This isn't aggressive enough; a call which only writes to a global
// is guaranteed to return.
- return CS.onlyReadsMemory() || CS.onlyAccessesArgMemory() ||
- match(I, m_Intrinsic<Intrinsic::assume>()) ||
- match(I, m_Intrinsic<Intrinsic::sideeffect>()) ||
- match(I, m_Intrinsic<Intrinsic::experimental_widenable_condition>());
+ return CS.onlyReadsMemory() || CS.onlyAccessesArgMemory();
}
// Other instructions return normally.
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