projects / platform / upstream / llvm.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 014ff63) | patch
[MSan] fix the types of RegSaveAreaPtrPtr and OverflowArgAreaPtrPtr
authorAlexander Potapenko <glider@google.com>
Mon, 19 Mar 2018 10:08:04 +0000 (10:08 +0000)
committerAlexander Potapenko <glider@google.com>
Mon, 19 Mar 2018 10:08:04 +0000 (10:08 +0000)
commitfa0217276a3dd30b745e8306f06c72a91a463ee2
tree3f74850edd4e33dfca79dda292b69e5c6466e273tree | snapshot
parent014ff63f24c5c5b659fdc7ae0a627a2b508e2edccommit | diff
[MSan] fix the types of RegSaveAreaPtrPtr and OverflowArgAreaPtrPtr

Despite their names, RegSaveAreaPtrPtr and OverflowArgAreaPtrPtr
used to be i8* instead of i8**.

This is important, because these pointers are dereferenced twice
(first in CreateLoad(), then in getShadowOriginPtr()), but for some
reason MSan allowed this - most certainly because it was possible
to optimize getShadowOriginPtr() away at compile time.

Differential revision: https://reviews.llvm.org/D44520

llvm-svn: 327830
llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp diff | blob | history
Domain: System / Toolchain;