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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2012-04-05 09:43:48 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2012-04-05 09:43:48 +0000
commit13ff78a491d6e5166f838c74bd377ad4d2ed81b6 (patch)
tree6258ff245914afce423859c9d6e66227cf605076 /gcc/tree-ssa-dse.c
parentf5149f4c7812d65b5e5f1126d01cafe8ebef9d2b (diff)
downloadgcc-13ff78a491d6e5166f838c74bd377ad4d2ed81b6.tar.gz
2012-04-05 Richard Guenther <rguenther@suse.de>
* gimple-iterator.c (gsi_remove): Return whether EH edges need to be cleanup. * gimple.h (gsi_remove): Adjust. * tree-ssa-operands.c (unlink_stmt_vdef): Optimize. * tree-ssa-dom.c (optimize_stmt): Use gsi_remove result. * tree-ssa-dse.c (dse_optimize_stmt): Likewise. * tree-ssa-forwprop.c (remove_prop_source_from_use): Likewise. * tree-ssa-math-opts.c (execute_optimize_widening_mul): Likewise. * tree-ssa-pre.c (eliminate): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@186159 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-dse.c')
-rw-r--r--gcc/tree-ssa-dse.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c
index 285d08c66c6..93ba42506d7 100644
--- a/gcc/tree-ssa-dse.c
+++ b/gcc/tree-ssa-dse.c
@@ -257,10 +257,9 @@ dse_optimize_stmt (gimple_stmt_iterator gsi)
/* Then we need to fix the operand of the consuming stmt. */
unlink_stmt_vdef (stmt);
- bitmap_set_bit (need_eh_cleanup, gimple_bb (stmt)->index);
-
/* Remove the dead store. */
- gsi_remove (&gsi, true);
+ if (gsi_remove (&gsi, true))
+ bitmap_set_bit (need_eh_cleanup, gimple_bb (stmt)->index);
/* And release any SSA_NAMEs set in this statement back to the
SSA_NAME manager. */