[Bug c++/67368] New: Inlining failed due to no_sanitize_address and always_inline conflict

wojciech.mula at microgen dot com gcc-bugzilla@gcc.gnu.org
Thu Aug 27 07:51:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368

            Bug ID: 67368
           Summary: Inlining failed due to no_sanitize_address and
                    always_inline conflict
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: wojciech.mula at microgen dot com
  Target Milestone: ---

When compiling program

-- bug.cpp --
#include <emmintrin.h>

__attribute__((no_sanitize_address))                                           
 void foo() {
   __m128i z = _mm_setzero_si128();
}
-- eof --

using following command

$ g++ -c -fsanitize=address bug.cpp

GCC reports:

In file included from bug.cpp:1:0:
[...]/x86_64-unknown-linux-gnu/4.9.2/include/emmintrin.h: In function ‘void
foo()’:
[...]/x86_64-unknown-linux-gnu/4.9.2/include/emmintrin.h:749:1: error: inlining
failed in call to always_inline ‘__m128i _mm_setzero_si128()’: function
attribute mismatch
 _mm_setzero_si128 (void)
 ^
bug.cpp:5:36: error: called from here
      __m128i z = _mm_setzero_si128();

Compiler version (built from the sources):

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=[...]/libexec/gcc/x86_64-unknown-linux-gnu/4.9.2/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: [...]/source/gcc-4.9.2/configure --prefix=[...]
--with-local-prefix=[...] --enable-languages=c,c++ --disable-multilib
Thread model: posix
gcc version 4.9.2 (GCC)

I've checked the sample program on https://gcc.godbolt.org/ and for versions
5.1.0 & 5.2.0 there is the same problem. However 4.9.2 from Ubuntu is not
affected.


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