diff options
| author | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-28 00:52:35 +0000 |
|---|---|---|
| committer | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-28 00:52:35 +0000 |
| commit | 68c35eb8e6a605a0db9d18d697ec13d7ae413060 (patch) | |
| tree | 6ac1b1fa0c3b8ade5a237d12fe531f37f0172b03 /gcc/testsuite | |
| parent | 15bd9b39978dfa7d533b7708b9a31240bb9deaa7 (diff) | |
| download | ppe42-gcc-68c35eb8e6a605a0db9d18d697ec13d7ae413060.tar.gz ppe42-gcc-68c35eb8e6a605a0db9d18d697ec13d7ae413060.zip | |
PR 21959
* tree-ssa-loop-niter.c (scev_probably_wraps_p): Handle type
casts between unsigned and signed types with different size
or precision.
testsuite/ChangeLog
PR 21959
* gcc.dg/tree-ssa/pr21959.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101365 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr21959.c | 20 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 31444a40c9a..1fab590a607 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2005-06-27 Diego Novillo <dnovillo@redhat.com> + + PR 21959 + * gcc.dg/tree-ssa/pr21959.c: New test. + 2005-06-27 Jakub Jelinek <jakub@redhat.com> * gcc.c-torture/execute/builtins/lib/main.c (abort): Add prototype. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr21959.c b/gcc/testsuite/gcc.dg/tree-ssa/pr21959.c new file mode 100644 index 00000000000..7b83b035271 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr21959.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp" } */ + +unsigned char c[0xFF]; +void f(void) +{ + unsigned char i; + c[128] = 128; + i = 0; + while (1) + { + /* This predicate should not be folded out. */ + if (((signed char) i) < 0) break; + c[i] = ' '; + i++; + } +} + +/* { dg-final { scan-tree-dump-times "Folding predicate " 0 "vrp" } } */ +/* { dg-final { cleanup-tree-dump "vrp" } } */ |
