From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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. --- gcc/testsuite/gcc.dg/tree-ssa/loop-17.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/loop-17.c (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-17.c') diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c new file mode 100644 index 000000000..d2903cef2 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-sccp-details" } */ + +/* To determine the number of iterations in this loop we need to fold + p_4 + 4B > p_4 + 8B to false. This transformation has caused + troubles in the past due to overflow issues. */ + +int foo (int *p) +{ + int i = 0, *x; + + for (x = p; x < p + 2; x++) + i++; + + return i; +} + +/* { dg-final { scan-tree-dump "set_nb_iterations_in_loop = 1" "sccp" } } */ +/* { dg-final { cleanup-tree-dump "sccp" } } */ -- cgit v1.2.3