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re PR target/46880 (generating of shufpd is broken) 

PR target/46880
	* config/i386/sse.md (sse2_loadlpd, sse2_movsd): Fix shufpd source
	operand.

	* gcc.target/i386/pr46880.c: New test.

From-SVN: r168135
This commit is contained in:
Jakub Jelinek 2010-12-21 23:37:23 +01:00
parent 31e1ba2e2a
commit 401e4feab6
4 changed files with 42 additions and 3 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-12-21 Jakub Jelinek <jakub@redhat.com>
PR target/46880
* config/i386/sse.md (sse2_loadlpd, sse2_movsd): Fix shufpd source
operand.
2010-12-21 Ira Rosen <irar@il.ibm.com>
PR tree-optimization/47001

4
gcc/config/i386/sse.md
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@ -4990,7 +4990,7 @@
movsd\t{%2, %0|%0, %2}
movlpd\t{%2, %0|%0, %2}
movsd\t{%2, %0|%0, %2}
shufpd\t{$2, %2, %0|%0, %2, 2}
shufpd\t{$2, %1, %0|%0, %1, 2}
movhpd\t{%H1, %0|%0, %H1}
#
#
@ -5067,7 +5067,7 @@
movsd\t{%2, %0|%0, %2}
movlpd\t{%2, %0|%0, %2}
movlpd\t{%2, %0|%0, %2}
shufpd\t{$2, %2, %0|%0, %2, 2}
shufpd\t{$2, %1, %0|%0, %1, 2}
movhps\t{%H1, %0|%0, %H1}
movhps\t{%1, %H0|%H0, %1}"
[(set_attr "type" "ssemov,ssemov,ssemov,sselog,ssemov,ssemov")

7
gcc/testsuite/ChangeLog
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@ -1,4 +1,9 @@
2010-12-21 Ira Rosen <irar@il.ibm.com>i
2010-12-21 Jakub Jelinek <jakub@redhat.com>
PR target/46880
* gcc.target/i386/pr46880.c: New test.
2010-12-21 Ira Rosen <irar@il.ibm.com>
PR tree-optimization/47001
* gcc.dg/vect/pr47001.c: New.

28
gcc/testsuite/gcc.target/i386/pr46880.c Normal file
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@ -0,0 +1,28 @@
/* PR target/46880 */
/* { dg-do run } */
/* { dg-options "-O2 -fno-strict-aliasing -msse2" } */
/* { dg-require-effective-target sse2_runtime } */
typedef double __m128d __attribute__ ((__vector_size__ (16), __may_alias__));
typedef double (*T)[2];
static __attribute__ ((noinline, noclone)) __m128d
foo (__m128d c, __m128d d)
{
T cp = (T) &c;
T dp = (T) &d;
__m128d e = { (*cp)[1], (*dp)[1] };
return e;
}
int
main ()
{
__m128d c = { 1.0, 2.0 };
__m128d d = { 3.0, 4.0 };
union { __m128d x; double d[2]; } u;
u.x = foo (c, d);
if (u.d[0] != 2.0 || u.d[1] != 4.0)
__builtin_abort ();
return 0;
}