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From: "mobi at mobiphil dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/52544] compilation fails with -finstrument-functions and sse c code
Date: Sat, 20 Dec 2014 14:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52544

mobi at mobiphil dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mobi at mobiphil dot com

--- Comment #7 from mobi at mobiphil dot com ---
Hi, I run into the same issue. Strange enough few days ago some similar
construct was working, that is I could use -finstrument-functions. (Do not
remember, if I did some package update on the ubuntu workstation I work). Now
for a simple program:

#include <emmintrin.h>


void setbytes(char *p, int c)
{
  __m128i i = _mm_set_epi8(c, c, c, c,
                           c, c, c, c,
                           c, c, c, c,
                           c, c, c, c);
  _mm_stream_si128((__m128i *)&p[0], i);
  _mm_stream_si128((__m128i *)&p[16], i);
  _mm_stream_si128((__m128i *)&p[32], i);
  _mm_stream_si128((__m128i *)&p[48], i);
}


char cucu[1000];
int main()
{

   setbytes(cucu, 3);
}

->gcc t.c -finstrument-functions
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_set_epi8'
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_set_epi8'
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_stream_si128'
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_stream_si128'
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_stream_si128'
/tmp/ccDMgc7s.o:t.c:function setbytes: error: undefined reference to
'_mm_stream_si128'
collect2: error: ld returned 1 exit status