2004-05-03 Andrew Pinski <pinskia@physics.uc.edu>

        PR middle-end/15618
        * fold-const.c (fold_widened_comparison): Treat BOOLEAN_TYPE
        the same as INTEGER_TYPE.
        (fold_binary): Fold "bool_var != 0" to bool_var.
        Fold "bool_var == 1" to bool_var.
2005-05-03  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/15618
        * gcc.dg/tree-ssa/bool-[1-9].c: New tests.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99207 138bc75d-0d04-0410-961f-82ee72b054a4

10 files changed, 174 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8638f985281..dca68964903 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-03  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR middle-end/15618
+	* gcc.dg/tree-ssa/bool-[1-9].c: New tests.
+
 2005-05-04  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/21265
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-1.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-1.c
new file mode 100644
index 00000000000..90cdef90c4e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-1.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  if (x != 0)
+   return 1;
+  return 0;
+}
+
+/* There should be no != 0 which is produced by the front-end as
+   bool_var != 0 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "!= 0" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-2.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-2.c
new file mode 100644
index 00000000000..e46189ad9f2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-2.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  int y;
+  if (x)
+    y = 1;
+  else
+    y = 0;
+  return y;
+}
+
+/* There should be no != 0 which is produced by the front-end as
+   bool_var != 0 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "!= 0" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-3.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-3.c
new file mode 100644
index 00000000000..f2ee9b864dd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-3.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  int y;
+  if (!x)
+    y = 0;
+  else
+    y = 1;
+  return y;
+}
+
+/* There should be no == 0. Though PHI-OPT or invert_truth does not
+   fold its tree.  */
+/* { dg-final { scan-tree-dump-times "== 0" 0 "optimized" { xfail *-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-4.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-4.c
new file mode 100644
index 00000000000..389124f0ede
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-4.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  return (x != 0);
+}
+
+/* There should be no != 0 which is produced by the front-end as
+   bool_var != 0 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "!= 0" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-5.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-5.c
new file mode 100644
index 00000000000..1cb9de2ceda
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-5.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  if (x == 1)
+   return 1;
+  return 0;
+}
+
+/* There should be no == 1 which is produced by the front-end as
+   bool_var == 1 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "== 1" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-6.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-6.c
new file mode 100644
index 00000000000..85f0333b826
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-6.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  int y;
+  if (x)
+    y = 1;
+  else
+    y = 0;
+  return y;
+}
+
+/* There should be no == 1 which is produced by the front-end as
+   bool_var == 1 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "== 1" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-7.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-7.c
new file mode 100644
index 00000000000..b09b97202c5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-7.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  int y;
+  if (x != 1)
+    y = 0;
+  else
+    y = 1;
+  return y;
+}
+
+/* There should be no != 1. Though PHI-OPT or invert_truth does not
+   fold its tree.  */
+/* { dg-final { scan-tree-dump-times "!= 1" 0 "optimized" { xfail *-*-* } }  }*/
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-8.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-8.c
new file mode 100644
index 00000000000..5a133097c38
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-8.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+  return (x == 1);
+}
+
+/* There should be no == 1 which is produced by the front-end as
+   bool_var == 1 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "== 1" 0 "optimized"} } */
+
+/* There should be no adde for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "adde" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-9.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-9.c
new file mode 100644
index 00000000000..09df2e48983
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-9.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+_Bool f1(_Bool x)
+{
+  return !!x;
+}
+
+/* There should be no != 0 which is produced by the front-end as
+   bool_var != 0 is the same as bool_var. */
+/* { dg-final { scan-tree-dump-times "!= 0" 0 "optimized"} } */
+
+/* There should be no subfe for powerpc. Checking if we actually optimizated
+   away the comparision.  */
+/* { dg-final { scan-assembler-times "subfe" 0 { target powerpc-*-* } } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */