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/g++.dg/tree-ssa/pr18178.C | 47 +++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 gcc/testsuite/g++.dg/tree-ssa/pr18178.C (limited to 'gcc/testsuite/g++.dg/tree-ssa/pr18178.C') diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr18178.C b/gcc/testsuite/g++.dg/tree-ssa/pr18178.C new file mode 100644 index 000000000..9223e8323 --- /dev/null +++ b/gcc/testsuite/g++.dg/tree-ssa/pr18178.C @@ -0,0 +1,47 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp1" } */ + +// Define this to see it work. +// #define WORK_WORK_WORK + +#define THIRD + +#ifdef THIRD +#define FIRST i < 0 || +#define ORIG int +#define CAST +#else + +#define FIRST +#ifdef WORK_WORK_WORK +#define ORIG unsigned int +#define CAST +#else +#define ORIG int +#define CAST (unsigned) +#endif // WORK_WORK_WORK + +#endif // THIRD + +struct array +{ + const ORIG len; + int *data; +}; + +extern void call (ORIG); + +void doit (array *a) +{ + for (ORIG i = 0; i < a->len; ++i) + { + if (FIRST CAST (i) >= CAST (a->len)) + throw 5; + call (a->data[i]); + } +} + +/* VRP should remove all but 1 if() in the loop. */ + +/* { dg-final { scan-tree-dump-times "if " 1 "vrp1"} } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ -- cgit v1.2.3