[PATCH] D155571: [MemCpyOpt] add terminator user test for D153453(NFC)
Nikita Popov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 18 05:34:54 PDT 2023
nikic accepted this revision.
nikic added a comment.
This revision is now accepted and ready to land.
LGTM with some nits.
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Comment at: llvm/test/Transforms/MemCpyOpt/stack-move.ll:385
+; TODO: if the last user is terminator, we won't insert lifetime.end.
+; For multi-bb patch, we will insert it for next immidiate post dominator block.
+define void @terminator_lastuse() personality i32 0 {
----------------
immediate
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Comment at: llvm/test/Transforms/MemCpyOpt/stack-move.ll:417
+
+ %2 = call i32 @use_nocapture(ptr nocapture %dest)
+ call void @llvm.lifetime.end.p0(i64 12, ptr %src)
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Is this call needed to reproduce the crash?
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Comment at: llvm/test/Transforms/MemCpyOpt/stack-move.ll:419
+ call void @llvm.lifetime.end.p0(i64 12, ptr %src)
+ %rv = invoke fastcc i32 @use_nocapture(ptr byval(%struct.Foo) %dest)
+ to label %suc unwind label %unw
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fastcc and byval here look unnecessary (byval can be replaced by nocapture).
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Comment at: llvm/test/Transforms/MemCpyOpt/stack-move.ll:423
+ %lp = landingpad i32 cleanup
+ br label %ehcleanup
+ehcleanup:
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I don't think this extra br is needed, you can directly resume.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D155571/new/
https://reviews.llvm.org/D155571
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