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re PR target/39501 (-O -ffinite-math-only gets min(x,y) optimization wrong for soft-float on arm-*-gnueabi)

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PR target/39501
	* arm.md (movsfcc): Disable if not TARGET_HARD_FLOAT.
	* testsuite/gcc.c-torture/execute/pr39501.c: New file.
	* testsuite/gcc.c-torture/execute/pr39501.x: New file.

From-SVN: r145534
This commit is contained in:
Richard Earnshaw 2009-04-04 10:37:10 +00:00 • committed by Richard Earnshaw
parent aa7069aa9f
commit aad2bccb9b
4 changed files with 93 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2009-04-04 Richard Earnshaw <rearnsha@arm.com>
PR target/39501
* arm.md (movsfcc): Disable if not TARGET_HARD_FLOAT.
* testsuite/gcc.c-torture/execute/pr39501.c: New file.
* testsuite/gcc.c-torture/execute/pr39501.x: New file.
2009-04-04 Richard Guenther <rguenther@suse.de>
PR tree-optimization/8781

2
gcc/config/arm/arm.md
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@ -8260,7 +8260,7 @@
(if_then_else:SF (match_operand 1 "arm_comparison_operator" "")
(match_operand:SF 2 "s_register_operand" "")
(match_operand:SF 3 "nonmemory_operand" "")))]
"TARGET_32BIT"
"TARGET_32BIT && TARGET_HARD_FLOAT"
"
{
enum rtx_code code = GET_CODE (operands[1]);

83
gcc/testsuite/gcc.c-torture/execute/pr39501.c Normal file
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@ -0,0 +1,83 @@
/* { dg-options "-ffast-math" } */
#define min1(a,b) ((a) < (b) ? (a) : (b))
#define max1(a,b) ((a) > (b) ? (a) : (b))
#define min2(a,b) ((a) <= (b) ? (a) : (b))
#define max2(a,b) ((a) >= (b) ? (a) : (b))
#define F(type,n) \
type __attribute__((noinline)) type##_##n(type a, type b) \
{ \
return n(a, b); \
}
F(float,min1)
F(float,min2)
F(float,max1)
F(float,max2)
F(double,min1)
F(double,min2)
F(double,max1)
F(double,max2)
int main()
{
if (float_min1(0.f, -1.f) != -1.f) abort();
if (float_min1(-1.f, 0.f) != -1.f) abort();
if (float_min1(0.f, 1.f) != 0.f) abort();
if (float_min1(1.f, 0.f) != 0.f) abort();
if (float_min1(-1.f, 1.f) != -1.f) abort();
if (float_min1(1.f, -1.f) != -1.f) abort();
if (float_max1(0.f, -1.f) != 0.f) abort();
if (float_max1(-1.f, 0.f) != 0.f) abort();
if (float_max1(0.f, 1.f) != 1.f) abort();
if (float_max1(1.f, 0.f) != 1.f) abort();
if (float_max1(-1.f, 1.f) != 1.f) abort();
if (float_max1(1.f, -1.f) != 1.f) abort();
if (float_min2(0.f, -1.f) != -1.f) abort();
if (float_min2(-1.f, 0.f) != -1.f) abort();
if (float_min2(0.f, 1.f) != 0.f) abort();
if (float_min2(1.f, 0.f) != 0.f) abort();
if (float_min2(-1.f, 1.f) != -1.f) abort();
if (float_min2(1.f, -1.f) != -1.f) abort();
if (float_max2(0.f, -1.f) != 0.f) abort();
if (float_max2(-1.f, 0.f) != 0.f) abort();
if (float_max2(0.f, 1.f) != 1.f) abort();
if (float_max2(1.f, 0.f) != 1.f) abort();
if (float_max2(-1.f, 1.f) != 1.f) abort();
if (float_max2(1.f, -1.f) != 1.f) abort();
if (double_min1(0., -1.) != -1.) abort();
if (double_min1(-1., 0.) != -1.) abort();
if (double_min1(0., 1.) != 0.) abort();
if (double_min1(1., 0.) != 0.) abort();
if (double_min1(-1., 1.) != -1.) abort();
if (double_min1(1., -1.) != -1.) abort();
if (double_max1(0., -1.) != 0.) abort();
if (double_max1(-1., 0.) != 0.) abort();
if (double_max1(0., 1.) != 1.) abort();
if (double_max1(1., 0.) != 1.) abort();
if (double_max1(-1., 1.) != 1.) abort();
if (double_max1(1., -1.) != 1.) abort();
if (double_min2(0., -1.) != -1.) abort();
if (double_min2(-1., 0.) != -1.) abort();
if (double_min2(0., 1.) != 0.) abort();
if (double_min2(1., 0.) != 0.) abort();
if (double_min2(-1., 1.) != -1.) abort();
if (double_min2(1., -1.) != -1.) abort();
if (double_max2(0., -1.) != 0.) abort();
if (double_max2(-1., 0.) != 0.) abort();
if (double_max2(0., 1.) != 1.) abort();
if (double_max2(1., 0.) != 1.) abort();
if (double_max2(-1., 1.) != 1.) abort();
if (double_max2(1., -1.) != 1.) abort();
exit(0);
}

2
gcc/testsuite/gcc.c-torture/execute/pr39501.x Normal file
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@ -0,0 +1,2 @@
set additional_flags "-ffast-math"
return 0