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re PR c/39928 (gimplify_expr failure)

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2009-04-27  Richard Guenther  <rguenther@suse.de>

	PR middle-end/39928
	* gimplify.c (gimplify_expr): If we are required to create
	a temporary make sure it ends up as register.

	* gcc.c-torture/compile/pr39928-1.c: New testcase.
	* gcc.c-torture/compile/pr39928-2.c: Likewise.

From-SVN: r146846
This commit is contained in:
Richard Guenther 2009-04-27 15:50:05 +00:00 • committed by Richard Biener
parent 952fa153c8
commit c685de4a22
5 changed files with 34 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-04-27 Richard Guenther <rguenther@suse.de>
PR middle-end/39928
* gimplify.c (gimplify_expr): If we are required to create
a temporary make sure it ends up as register.
2009-04-27 H.J. Lu <hongjiu.lu@intel.com>
PR target/39903

7
gcc/gimplify.c
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@ -7184,7 +7184,12 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
/* The postqueue might change the value of the expression between
the initialization and use of the temporary, so we can't use a
formal temp. FIXME do we care? */
*expr_p = get_initialized_tmp_var (*expr_p, pre_p, post_p);
{
*expr_p = get_initialized_tmp_var (*expr_p, pre_p, post_p);
if (TREE_CODE (TREE_TYPE (*expr_p)) == COMPLEX_TYPE
|| TREE_CODE (TREE_TYPE (*expr_p)) == VECTOR_TYPE)
DECL_GIMPLE_REG_P (*expr_p) = 1;
}
else
*expr_p = get_formal_tmp_var (*expr_p, pre_p);
}

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2009-04-27 Richard Guenther <rguenther@suse.de>
PR middle-end/39928
* gcc.c-torture/compile/pr39928-1.c: New testcase.
* gcc.c-torture/compile/pr39928-2.c: Likewise.
2009-04-27 H.J. Lu <hongjiu.lu@intel.com>
PR target/39903

8
gcc/testsuite/gcc.c-torture/compile/pr39928-1.c Normal file
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@ -0,0 +1,8 @@
typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__));
extern __m128 _mm_sub_ps (__m128 __A, __m128 __B);
extern __m128 _mm_mul_ps (__m128 __A, __m128 __B);
__m128
vq_nbest(const __m128 *codebook, __m128 d, __m128 in)
{
return _mm_sub_ps(d, _mm_mul_ps(in, *codebook++));
}

8
gcc/testsuite/gcc.c-torture/compile/pr39928-2.c Normal file
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@ -0,0 +1,8 @@
typedef _Complex float __m128;
extern __m128 _mm_sub_ps (__m128 __A, __m128 __B);
extern __m128 _mm_mul_ps (__m128 __A, __m128 __B);
__m128
vq_nbest(const __m128 *codebook, __m128 d, __m128 in)
{
return _mm_sub_ps(d, _mm_mul_ps(in, *codebook++));
}