From 421076b552721090c5901ff4797d155e5a5a69c8 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Fri, 16 Feb 2007 13:41:03 +0000 Subject: fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like DECLs but prefer SSA_NAMEs over DECLs. 2007-02-16 Richard Guenther Christian Bruel * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like DECLs but prefer SSA_NAMEs over DECLs. * gcc.dg/strict-overflow-5.c: New testcase. Co-Authored-By: Christian Bruel From-SVN: r122040 --- gcc/testsuite/gcc.dg/strict-overflow-5.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/strict-overflow-5.c (limited to 'gcc/testsuite/gcc.dg/strict-overflow-5.c') diff --git a/gcc/testsuite/gcc.dg/strict-overflow-5.c b/gcc/testsuite/gcc.dg/strict-overflow-5.c new file mode 100644 index 0000000..26e0174 --- /dev/null +++ b/gcc/testsuite/gcc.dg/strict-overflow-5.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-fstrict-overflow -O2 -fdump-tree-final_cleanup" } */ + +/* We can only unroll when using strict overflow semantics. */ + +int foo (int i) +{ + int index; + int r=0; + + for (index = i; index <= i+4; index+=2) + r++; + + return r; +} + +/* { dg-final { scan-tree-dump-times "r = 3" 1 "final_cleanup" } } */ +/* { dg-final { cleanup-tree-dump "final_cleanup" } } */ + -- cgit v1.1