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| author | Tom de Vries <tom@codesourcery.com> | 2013-11-14 00:10:42 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2013-11-14 00:10:42 +0000 |
| commit | b4e48861dfd6ec635b252dc13a5b19a2df237cc7 (patch) | |
| tree | 374322382bce0dcc52445ff4261931542fd1ecae /gcc/testsuite | |
| parent | b6366520fa4bdf20c884457f027b5c4701cd3bbe (diff) | |
| download | gcc-b4e48861dfd6ec635b252dc13a5b19a2df237cc7.tar.gz | |
Handle GIMPLE_ASSIGNs with different vuse in gimple_equal_p
2013-11-14 Tom de Vries <tom@codesourcery.com>
* tree-ssa-tail-merge.c (gimple_equal_p): Add test for structural
equality for GIMPLE_ASSIGN.
* gcc.dg/tail-merge-store.c: New test.
From-SVN: r204767
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tail-merge-store.c | 22 |
2 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 93080a8d0b8..ddbb62eeb07 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2013-11-14 Tom de Vries <tom@codesourcery.com> + + * gcc.dg/tail-merge-store.c: New test. + 2013-11-13 Andrew MacLeod <amacleod@redhat.com> * testsuite/g++.dg/plugin/selfassign.c: Include gimple-iterator.h. diff --git a/gcc/testsuite/gcc.dg/tail-merge-store.c b/gcc/testsuite/gcc.dg/tail-merge-store.c new file mode 100644 index 00000000000..1aefbdc1495 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tail-merge-store.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre" } */ + +int z; +int x; + +void +f (int c, int d) +{ + if (c) + z = 5; + else + { + if (d) + x = 4; + z = 5; + } +} + +/* { dg-final { scan-tree-dump-times "duplicate of" 1 "pre"} } */ +/* { dg-final { scan-tree-dump-times "z = 5" 1 "pre"} } */ +/* { dg-final { cleanup-tree-dump "pre" } } */ |