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authorbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2008-04-17 04:40:08 +0000
committerbstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>2008-04-17 04:40:08 +0000
commitd60c3572b2c5c73d0217066d3f4ebdae01663e53 (patch)
tree5157f3170a53eb9be6b856dcaeec31decab08ffe /gcc/testsuite/gcc.dg/no-strict-overflow-7.c
parent1d6ddbbde651efdc85412db5e1e8b2d01501023c (diff)
downloadgcc-d60c3572b2c5c73d0217066d3f4ebdae01663e53.tar.gz
2008-04-17 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk r134362 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@134378 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/no-strict-overflow-7.c')
-rw-r--r--gcc/testsuite/gcc.dg/no-strict-overflow-7.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/no-strict-overflow-7.c b/gcc/testsuite/gcc.dg/no-strict-overflow-7.c
new file mode 100644
index 00000000000..07ad27b1f87
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/no-strict-overflow-7.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-final_cleanup" } */
+
+/* Source: Ian Lance Taylor. Dual of strict-overflow-6.c. */
+
+/* We can only simplify the conditional when using strict overflow
+ semantics. */
+
+int
+foo (char* p)
+{
+ return p + 1000 < p;
+}
+
+/* { dg-final { scan-tree-dump "\[+\]\[ \]*1000" "final_cleanup" } } */
+/* { dg-final { cleanup-tree-dump "final_cleanup" } } */