obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 59 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-5.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-5.c
new file mode 100644
index 000000000..7a930dd45
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-5.c
@@ -0,0 +1,59 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -ffinite-math-only -fdump-tree-phiopt1" } */
+
+float repl1 (float varx)
+{
+  if (varx < 0.0)
+    return 0.0;
+  else if (varx > 1.0)
+    return 1.0;
+  else
+    return varx;
+}
+
+/* Should be turned to
+
+   varx_4 = MIN_EXPR <1.0e+0, varx_2>;
+   varx_5 = MAX_EXPR <varx_4, 0.0>;  */  
+
+/* { dg-final { scan-tree-dump "varx.*MIN_EXPR.*1\\.0" "phiopt1"} } */
+/* { dg-final { scan-tree-dump "varx.*MAX_EXPR.*0\\.0" "phiopt1"} } */
+
+float repl2 (float vary)
+{
+  if (vary > 1.0)
+    return 1.0;
+  else if (vary < 0.0)
+    return 0.0;
+  else
+    return vary;
+}
+
+/* Should be turned to
+
+   vary_4 = MAX_EXPR <0.0, vary_2>;
+   vary_5 = MIN_EXPR <vary_4, 1.0e+0>;  */
+
+/* { dg-final { scan-tree-dump "vary.*MAX_EXPR.*0\\.0" "phiopt1"} } */
+/* { dg-final { scan-tree-dump "vary.*MIN_EXPR.*1\\.0" "phiopt1"} } */
+
+float repl3 (float varz, float vara, float varb)
+{
+  if (varz > vara)
+    return vara;
+  else if (varz < varb)
+    return varb;
+  else
+    return varz;
+}
+
+/* Should be turned to
+
+  if (varz_2 > vara_3) goto <L4>; else goto <L1>;
+
+<L1>:;
+  vara_6 = MAX_EXPR <varb_5, varz_2>;  */
+
+/* { dg-final { scan-tree-dump "if .*varz" "phiopt1"} } */
+/* { dg-final { scan-tree-dump "vara.*MAX_EXPR" "phiopt1"} } */
+/* { dg-final { cleanup-tree-dump "phiopt1" } } */