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/builtin-unreachable-2.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/builtin-unreachable-2.c (limited to 'gcc/testsuite/gcc.dg/builtin-unreachable-2.c') diff --git a/gcc/testsuite/gcc.dg/builtin-unreachable-2.c b/gcc/testsuite/gcc.dg/builtin-unreachable-2.c new file mode 100644 index 000000000..13bdb9f73 --- /dev/null +++ b/gcc/testsuite/gcc.dg/builtin-unreachable-2.c @@ -0,0 +1,20 @@ +/* Check that __builtin_unreachable() is a no-return function thus + causing the dead call to foo() to be removed. The comparison is + dead too, and should be removed. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized -fdump-rtl-cse1" } */ +void foo (void); + +int +f (int i) +{ + if (i > 1) + __builtin_unreachable(); + if (i > 1) + foo (); + return 1; +} +/* { dg-final { scan-tree-dump-not "foo" "optimized" } } */ +/* { dg-final { scan-rtl-dump-not "\\(if_then_else" "cse1" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ +/* { dg-final { cleanup-rtl-dump "cse1" } } */ -- cgit v1.2.3