rs6000.c (validate_condition_mode): Use flag_finite_math_only.

2003-05-05  Geoffrey Keating  <geoffk@apple.com>

	* config/rs6000/rs6000.c (validate_condition_mode): Use
	flag_finite_math_only.
	(rs6000_reverse_condition): Never return UNKNOWN; use
	flag_finite_math_only.
	(rs6000_generate_compare): Use flag_finite_math_only.
	(rs6000_emit_cmove): Handle UNLE.  Support UNEQ under -ffast-math.
	Use HONOR_* rather than flag_unsafe_math_optimizations.  Correct
	UNGE and GT cases.  Handle UNEQ and LTGT when ! HONOR_NANS.

Index: testsuite/ChangeLog
2003-05-05  Geoffrey Keating  <geoffk@apple.com>

	* gcc.c-torture/execute/ieee/fp-cmp-8.c: New test.
	* gcc.dg/ppc-fsel-2.c: New test.

From-SVN: r66499

1 files changed, 80 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/ppc-fsel-2.c b/gcc/testsuite/gcc.dg/ppc-fsel-2.c
new file mode 100644
index 0000000..9768b16
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ppc-fsel-2.c
@@ -0,0 +1,80 @@
+/* { dg-do compile { target powerpc*-*-* } } */
+/* { dg-options "-O -mpowerpc-gfxopt -g0 -ffinite-math-only" } */
+/* { dg-final { scan-assembler-not "^L" } } */
+
+/* Every single one of these should be compiled into straight-line
+   code using fsel (or, in a few cases, hardwired to 'true' or
+   'false'), no branches anywhere.  */
+
+double
+test_isunordered(double x, double y, double a, double b)
+{
+  return __builtin_isunordered(x, y) ? a : b;
+}
+
+double
+test_not_isunordered(double x, double y, double a, double b)
+{
+  return !__builtin_isunordered(x, y) ? a : b;
+}
+
+double
+test_isless(double x, double y, double a, double b)
+{
+  return __builtin_isless(x, y) ? a : b;
+}
+
+double
+test_not_isless(double x, double y, double a, double b)
+{
+  return !__builtin_isless(x, y) ? a : b;
+}
+
+double
+test_islessequal(double x, double y, double a, double b)
+{
+  return __builtin_islessequal(x, y) ? a : b;
+}
+
+double
+test_not_islessequal(double x, double y, double a, double b)
+{
+  return !__builtin_islessequal(x, y) ? a : b;
+}
+
+double
+test_isgreater(double x, double y, double a, double b)
+{
+  return __builtin_isgreater(x, y) ? a : b;
+}
+
+double
+test_not_isgreater(double x, double y, double a, double b)
+{
+  return !__builtin_isgreater(x, y) ? a : b;
+}
+
+double
+test_isgreaterequal(double x, double y, double a, double b)
+{
+  return __builtin_isgreaterequal(x, y) ? a : b;
+}
+
+double
+test_not_isgreaterequal(double x, double y, double a, double b)
+{
+  return !__builtin_isgreaterequal(x, y) ? a : b;
+}
+
+double
+test_islessgreater(double x, double y, double a, double b)
+{
+  return __builtin_islessgreater(x, y) ? a : b;
+}
+
+double
+test_not_islessgreater(double x, double y, double a, double b)
+{
+  return !__builtin_islessgreater(x, y) ? a : b;
+}
+