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target/5609: ICE on SSE2 inline assembler
- From: tom at womack dot net
- To: gcc-gnats at gcc dot gnu dot org
- Cc: jh at suse dot cz
- Date: 6 Feb 2002 13:59:17 -0000
- Subject: target/5609: ICE on SSE2 inline assembler
- Reply-to: tom at womack dot net
>Number: 5609
>Category: target
>Synopsis: ICE on SSE2 inline assembler
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Feb 06 06:06:05 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Thomas Womack
>Release: gcc-3.1-20020204
>Organization:
>Environment:
SuSE 7.3 on P4/1300
>Description:
The following source:
typedef int ___m128 __attribute__ ((mode(V4SI)));
typedef union {___m128 m128; unsigned char m128i_8[16];} __m128i;
inline __m128i _mm_cmpeq_epi8(__m128i a, __m128i b)
{
__m128i alpha;
asm("pcmpeqb %[param],%[inout]" :
[inout] "=Y" (alpha.m128) :
"[inout]" (a.m128),
[param] "Y" (b.m128));
return alpha;
}
int main(void)
{
__m128i a,b;
a = _mm_cmpeq_epi8(b,b);
}
gives an error message "internal error: Segmentation fault" at line 10 (the line with the asm command), when compiled with gcc-3.1 -msse2 -S using the 20020204 snapshot.
>How-To-Repeat:
Compile source with gcc-3.1 -msse2 -S
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: