jyknight added inline comments.
================
Comment at: clang/lib/CodeGen/CGExpr.cpp:910
if (FD->getParent()->isUnion())
- return StrictFlexArraysLevel < 2;
+ return true;
RecordDecl::field_iterator FI(
----------------
This is a functional change (which is good, but the commit message needs to be
adjusted). In current trunk
```
union X { int x[0]; };
int foo(X*x) { return x->x[2]; }
```
built with `-fstrict-flex-arrays=2 -fsanitize=array-bounds` would incorrectly
report ubsan error, and this change fixes that.
I think this testcase can be added to clang/test/CodeGen/bounds-checking-fam.c.
Probably this should also be nominated for backport to the 15.x branch (for the
first point release I expect)
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D132944/new/
https://reviews.llvm.org/D132944
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