https://bugs.exim.org/show_bug.cgi?id=2176
Bug ID: 2176
Summary: Disable SSE2 under Valgrind dynamically
Product: PCRE
Version: 8.41
Hardware: x86-64
OS: Linux
Status: NEW
Severity: wishlist
Priority: medium
Component: Code
Assignee: ph10@???
Reporter: ibragimovrinat@???
CC: pcre-dev@???
Created attachment 1044
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https://bugs.exim.org/attachment.cgi?id=1044&action=edit
Do not use SSE2 code path when running under Valgrind.
By default, PCRE JIT uses SSE2-optimized code that makes Valgrind unhappy. It's
possible to compile PCRE with --enable-valgrind, but that disables
optimizations, even if not running under Valgrind.
Valgrind headers contain various macros that help to detect it at run time. I
propose to use RUNNING_ON_VALGRIND to disable SSE2-enabled code only when
running under Valgrind.
(patch attached)
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