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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c')
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c
new file mode 100644
index 000000000..c8a434a2b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-9.c
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fno-tree-sra -fdump-tree-fre-stats" } */
+
+union loc {
+ unsigned reg;
+ signed offset;
+};
+void __frame_state_for2 (volatile char *state_in)
+{
+ union loc fs;
+ {
+ *state_in = fs.reg;
+ *state_in = fs.offset;
+ }
+}
+void __frame_state_for1 (volatile char *state_in)
+{
+ union loc fs;
+ for (;;)
+ {
+ *state_in = fs.offset;
+ *state_in = fs.reg;
+ }
+}
+
+/* { dg-final { scan-tree-dump-times "Eliminated: 1" 2 "fre" } } */
+/* { dg-final { scan-tree-dump-times "Insertions: 1" 2 "fre" } } */
+/* { dg-final { cleanup-tree-dump "fre" } } */