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| author | Richard Guenther <rguenther@suse.de> | 2009-03-28 17:17:57 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-03-28 17:17:57 +0000 |
| commit | b005da111c1cfd1b71647eb68eb3fe1bfc35ee64 (patch) | |
| tree | defb4df11f0db8f2ada0dda77bfe5190900fb115 /gcc/testsuite/gcc.dg/tree-ssa | |
| parent | 5d63a35f9f1a1ec0171ae9003fba40ddc60d8f51 (diff) | |
| download | gcc-b005da111c1cfd1b71647eb68eb3fe1bfc35ee64.zip gcc-b005da111c1cfd1b71647eb68eb3fe1bfc35ee64.tar.gz gcc-b005da111c1cfd1b71647eb68eb3fe1bfc35ee64.tar.bz2 | |
re PR tree-optimization/38723 (default definitions not in avail_out)
2009-03-28 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38723
* tree-ssa-pre.c (compute_avail): Add all default definitions to
the entry block.
* gcc.dg/tree-ssa/ssa-fre-22.c: New testcase.
From-SVN: r145197
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-22.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-22.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-22.c new file mode 100644 index 0000000..ce311b6 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-22.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-fre" } */ + +int i; +int foo (void) +{ + int j; + i = j; + return i; +} + +/* We should eliminate the redundant load of i. */ + +/* { dg-final { scan-tree-dump-not "= i;" "fre" } } */ +/* { dg-final { cleanup-tree-dump "fre" } } */ |