[PATCH] D71314: Emit a warning if a variable is uninitialized in indirect ASM goto destination.
Nick Desaulniers via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Dec 19 09:33:37 PST 2019
nickdesaulniers added a comment.
> Use -Wuninitialized.
D'oh!
================
Comment at: clang/lib/Analysis/UninitializedValues.cpp:856
if (!as->isAsmGoto())
return;
----------------
nickdesaulniers wrote:
> Should we mark the vals `MayUninitialized` here, rather than below? Then I think we can remove the `isAsmGoto` check you added in `getUninitUse`?
Bumping comment.
================
Comment at: clang/test/Analysis/uninit-asm-goto.cpp:57
+ return y;
+indirect:
+ return -2;
----------------
I think if you left out `indirect`, it would be clearer what this test is testing.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D71314/new/
https://reviews.llvm.org/D71314
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