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(parent: 445195b) | patch
Warn of uninitialized variables on asm goto's indirect branch
authorBill Wendling <isanbard@gmail.com>
Tue, 10 Mar 2020 20:47:30 +0000 (13:47 -0700)
committerBill Wendling <isanbard@gmail.com>
Tue, 10 Mar 2020 20:48:48 +0000 (13:48 -0700)
commit72aa619a7fe0e2f90959b0614f6388c09aba8913
treeb066acb39e095046030647d6e0d3bf0014a3eadbtree | snapshot
parent445195ba6cee029852193e3f2a12cf9356fac308commit | diff
Warn of uninitialized variables on asm goto's indirect branch

Summary:
Outputs from an asm goto block cannot be used on the indirect branch.
It's not supported and may result in invalid code generation.

Reviewers: jyknight, nickdesaulniers, hfinkel

Reviewed By: nickdesaulniers

Subscribers: martong, cfe-commits, rnk, craig.topper, hiraditya, rsmith

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71314
clang/lib/Analysis/UninitializedValues.cpp diff | blob | history
clang/test/Analysis/uninit-asm-goto.cpp diff | blob | history
Domain: System / Toolchain;