[PATCH] D118647: [hwasan] work around lifetime issue with setjmp.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis added inline comments.


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Comment at: llvm/test/Instrumentation/HWAddressSanitizer/use-after-scope-setjmp.ll:26
+  store i8* %0, i8** @stackbuf, align 8
+  call void @may_jump() #7
+  call void @llvm.lifetime.end.p0i8(i64 4096, i8* nonnull %0) #10
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eugenis wrote:
> so the callee of this may longjmp, bypassing the lifetime.end. Effectively, this adds a DT edge from any call site in this function to immediately after  the setjmp call.
> 
> Please add some comments here explaining this.
I meant to say "call graph edge".


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  https://reviews.llvm.org/D118647/new/

https://reviews.llvm.org/D118647