Match: Fix ordered and nonequal

Need to add :c for bit_and, because bit_and is commutative. And is (ltgt @0 @1)
is simpler than (bit_not (uneq @0 @1)).

gcc/ChangeLog:

	* match.pd: Fix match for (bit_and (ordered @0 @1) (ne @0 @1)).

gcc/testsuite/ChangeLog:

	* gcc.dg/opt-ordered-and-nonequal-1.c: New test.
	* gcc.target/i386/optimize_one.c: Change name to opt-comi-1.c.
	* gcc.target/i386/opt-comi-1.c: New test.

diff --git a/gcc/match.pd b/gcc/match.pd
index 4298e89dad6dd3220334b5fc49c3c221da0059d1..621306213e4948a7f49c6550b1918593db702544 100644 (file)
--- a/gcc/match.pd
+++ b/gcc/match.pd
@@ -6652,8 +6652,8 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
  (if (!flag_trapping_math || !tree_expr_maybe_nan_p (@0))
   { constant_boolean_node (false, type); }))
 (simplify
- (bit_and (ordered @0 @1) (ne @0 @1))
- (bit_not (uneq @0 @1)))
+ (bit_and:c (ordered @0 @1) (ne @0 @1))
+ (ltgt @0 @1))
 
 /* x == ~x -> false */
 /* x != ~x -> true */

diff --git a/gcc/testsuite/gcc.dg/opt-ordered-and-nonequal-1.c b/gcc/testsuite/gcc.dg/opt-ordered-and-nonequal-1.c
new file mode 100644 (file)
index 0000000..6d102c2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/opt-ordered-and-nonequal-1.c
@@ -0,0 +1,49 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-forwprop1-details" } */
+
+int is_ordered_and_nonequal_sh_1 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && (a != b);
+}
+
+int is_ordered_and_nonequal_sh_2 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && (b != a);
+}
+
+int is_ordered_and_nonequal_sh_3 (float a, float b)
+{
+  return (b != a) && !__builtin_isunordered (a, b);
+}
+
+int is_ordered_and_nonequal_sh_4 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && !(a == b);
+}
+
+int is_ordered_and_nonequal_sh_5 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && !(b == a);
+}
+
+int is_ordered_and_nonequal_sh_6 (float a, float b)
+{
+  return !(b == a) && !__builtin_isunordered (a, b);
+}
+
+int is_ordered_or_nonequal_sh_7 (float a, float b)
+{
+  return !(__builtin_isunordered (a, b) || (a == b));
+}
+
+int is_ordered_or_nonequal_sh_8 (float a, float b)
+{
+  return !(__builtin_isunordered (a, b) || (b == a));
+}
+
+int is_ordered_or_nonequal_sh_9 (float a, float b)
+{
+  return !((a == b) || __builtin_isunordered (b, a));
+}
+
+/* { dg-final { scan-tree-dump-times "gimple_simplified to\[^\n\r]*<>" 9 "forwprop1" } } */

diff --git a/gcc/testsuite/gcc.target/i386/opt-comi-1.c b/gcc/testsuite/gcc.target/i386/opt-comi-1.c
new file mode 100644 (file)
index 0000000..fc7b863
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/opt-comi-1.c
@@ -0,0 +1,49 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mfpmath=sse -msse2" } */
+/* { dg-final { scan-assembler-times "comiss" 9 } } */
+/* { dg-final { scan-assembler-times "set" 9 } } */
+
+int is_ordered_and_nonequal_sh_1 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && (a != b);
+}
+
+int is_ordered_and_nonequal_sh_2 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && (b != a);
+}
+
+int is_ordered_and_nonequal_sh_3 (float a, float b)
+{
+  return (b != a) && !__builtin_isunordered (a, b);
+}
+
+int is_ordered_and_nonequal_sh_4 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && !(a == b);
+}
+
+int is_ordered_and_nonequal_sh_5 (float a, float b)
+{
+  return !__builtin_isunordered (a, b) && !(b == a);
+}
+
+int is_ordered_and_nonequal_sh_6 (float a, float b)
+{
+  return !(b == a) && !__builtin_isunordered (a, b);
+}
+
+int is_ordered_or_nonequal_sh_7 (float a, float b)
+{
+  return !(__builtin_isunordered (a, b) || (a == b));
+}
+
+int is_ordered_or_nonequal_sh_8 (float a, float b)
+{
+  return !(__builtin_isunordered (a, b) || (b == a));
+}
+
+int is_ordered_or_nonequal_sh_9 (float a, float b)
+{
+  return !((a == b) || __builtin_isunordered (b, a));
+}

diff --git a/gcc/testsuite/gcc.target/i386/optimize_one.c b/gcc/testsuite/gcc.target/i386/optimize_one.c
deleted file mode 100644 (file)
index 3a682ed..0000000
--- a/gcc/testsuite/gcc.target/i386/optimize_one.c
+++ /dev/null
@@ -1,9 +0,0 @@
-/* { dg-do compile } */
-/* { dg-options "-O2 -mfpmath=sse -msse2" } */
-/* { dg-final { scan-assembler-times "comi" 1 } } */
-/* { dg-final { scan-assembler-times "set" 1 } } */
-
-int is_ordered_or_nonequal_sh (float a, float b)
-{
-  return !__builtin_isunordered (a, b) && (a != b);
-}