[PATCH] D24482: [asan] Don't poison variables as for lifitime analysis on function entry.

[Vitaly Buka via llvm-commits]

vitalybuka created this revision.
vitalybuka added a reviewer: eugenis.
vitalybuka added a subscriber: llvm-commits.

In most cases such poisoning makes sense, however PR28267 allows to jump over
intrinsics:

void f() {
  goto l1;
  int i;
  return;
l1:
  i = 5;
}

https://reviews.llvm.org/D24482

Files:
  lib/Transforms/Instrumentation/AddressSanitizer.cpp
  test/Instrumentation/AddressSanitizer/lifetime-throw.ll
  test/Instrumentation/AddressSanitizer/lifetime-uar-uas.ll
  test/Instrumentation/AddressSanitizer/lifetime.ll
  test/Instrumentation/AddressSanitizer/stack-poisoning-experimental-be.ll
  test/Instrumentation/AddressSanitizer/stack-poisoning-experimental.ll

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