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| author | Richard Guenther <rguenther@suse.de> | 2012-06-29 13:17:44 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-06-29 13:17:44 +0000 |
| commit | a1ebcd97b84956788ffc7dcd0950785f9395ff19 (patch) | |
| tree | 191207b754ebc02d3707e93676c0dc9fbebd6e14 /gcc | |
| parent | 8a8b3779de304fd1cb3a5504ab1eb3e07068e828 (diff) | |
| download | gcc-a1ebcd97b84956788ffc7dcd0950785f9395ff19.zip gcc-a1ebcd97b84956788ffc7dcd0950785f9395ff19.tar.gz gcc-a1ebcd97b84956788ffc7dcd0950785f9395ff19.tar.bz2 | |
re PR tree-optimization/52589 (VRP missed optimization)
2012-06-29 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52589
* gcc.dg/tree-ssa/vrp70.c: New testcase.
From-SVN: r189073
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/vrp70.c | 28 |
2 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 52e5062..7709ae5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-06-29 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/52589 + * gcc.dg/tree-ssa/vrp70.c: New testcase. + 2012-06-28 Janis Johnson <janisjo@codesourcery.com> * g++.dg/cpp0x/nullptr19.c: Remove exta directives on same line. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp70.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp70.c new file mode 100644 index 0000000..e9a7563 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp70.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target int32plus } */ +/* { dg-options "-O2 -fdump-tree-vrp1" } */ + +extern void link_error (void); + +void +foo (unsigned int s) +{ + if (s + 0x70000000 < 0xf0000000U) + { + if (s >= 0x80000000U && s < 0x90000000U) + link_error (); + } +} + +void +bar (unsigned int s) +{ + if (s + 0x70000000 >= 0xf0000000U) + { + if (s < 0x80000000U || s >= 0x90000000U) + link_error (); + } +} + +/* { dg-final { scan-tree-dump-not "link_error" "vrp1" } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ |