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/Wstrict-overflow-13.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/Wstrict-overflow-13.c (limited to 'gcc/testsuite/gcc.dg/Wstrict-overflow-13.c') diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c new file mode 100644 index 000000000..170d13777 --- /dev/null +++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-13.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2" } */ + +/* Source: Ian Lance Taylor. Dual of no-strict-overflow-6.c. */ + +/* VRP test. This turns into an infinite loop (depending on what + bigtime_test does), but at least we warn about it. */ + +extern int bigtime_test (int); +int +foo () +{ + int j; + for (j = 1; 0 < j; j *= 2) /* { dg-warning "assuming signed overflow does not occur" "correct warning" } */ + if (! bigtime_test (j)) + return 1; + return 0; +} -- cgit v1.2.3