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| author | Richard Biener <rguenther@suse.de> | 2013-11-29 10:47:52 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-11-29 10:47:52 +0000 |
| commit | b54fc5b7ee19a2410460a2424a4fb8754a7467cb (patch) | |
| tree | a064945a56e9e7e4a140d1ae80d9e2ca7d4c46cf /gcc/tree-ssa-dce.c | |
| parent | e06f9964af04d213dcde35ee63ecff12676ece44 (diff) | |
| download | gcc-b54fc5b7ee19a2410460a2424a4fb8754a7467cb.zip gcc-b54fc5b7ee19a2410460a2424a4fb8754a7467cb.tar.gz gcc-b54fc5b7ee19a2410460a2424a4fb8754a7467cb.tar.bz2 | |
re PR tree-optimization/59334 (r205486 caused many failures)
2013-11-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/59334
* tree-ssa-dce.c (eliminate_unnecessary_stmts): Fix bug
in previous commit.
From-SVN: r205515
Diffstat (limited to 'gcc/tree-ssa-dce.c')
| -rw-r--r-- | gcc/tree-ssa-dce.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index e2177fe..8fc6fce 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -1200,7 +1200,8 @@ eliminate_unnecessary_stmts (void) if (TREE_CODE (ptr) == SSA_NAME) { gimple def_stmt = SSA_NAME_DEF_STMT (ptr); - if (!gimple_plf (def_stmt, STMT_NECESSARY)) + if (!gimple_nop_p (def_stmt) + && !gimple_plf (def_stmt, STMT_NECESSARY)) gimple_set_plf (stmt, STMT_NECESSARY, false); } } |