diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr18178.C')
-rw-r--r-- | gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr18178.C | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr18178.C b/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr18178.C new file mode 100644 index 000000000..a04807780 --- /dev/null +++ b/gcc-4.9/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" } } */ |