[Bug middle-end/32711] New: Regression: ICE when using inline asm constraint "X"

[scovich at gmail dot com]

Compiling the following functions with gcc-4.{1,2,3} results in an ICE.
gcc-3.4.4 does not ICE:

#include <emmintrin.h>
static inline
__m128i my_asm(__m128i a, __m128i b) {
   __m128i result;
   asm("pshufb\t%1,%0" : "=x"(result) : "X"(b), "0"(a));
   return result;
}
__m128i foo(__m128i src) {
  return my_asm(src, _mm_set1_epi32(1));
}

If the inline asm is called directly (not through an inline function) or if the
"X" constraint changes to "mx" everything works fine.


-- 
           Summary: Regression: ICE when using inline asm constraint "X"
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: scovich at gmail dot com
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32711