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-7.c | 35 ++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/loop-7.c (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-7.c') diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-7.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-7.c new file mode 100644 index 000000000..ab4a5026f --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-7.c @@ -0,0 +1,35 @@ +/* PR tree-optimization/19828 */ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-lim-details" } */ + +int cst_fun1 (int) __attribute__((__const__)); +int cst_fun2 (int) __attribute__((__const__)); +int pure_fun1 (int) __attribute__((__pure__)); +int pure_fun2 (int) __attribute__((__pure__)); +int foo (void); + +int xxx (void) +{ + int i, k = foo (), x = 0; + + for (i = 0; i < 100; i++) + { + x += cst_fun1 (k); + x += pure_fun1 (k); + + if (k) + { + x += cst_fun2 (k); + x += pure_fun2 (k); + } + } + + return x; +} + +/* Calls to cst_fun1 and pure_fun1 may be moved out of the loop. + Calls to cst_fun2 and pure_fun2 should not be, since calling + with k = 0 may be invalid. */ + +/* { dg-final { scan-tree-dump-times "Moving statement" 2 "lim1" } } */ +/* { dg-final { cleanup-tree-dump "lim\[1-2\]" } } */ -- cgit v1.2.3