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| author | Richard Guenther <rguenther@suse.de> | 2011-03-15 11:09:09 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-03-15 11:09:09 +0000 |
| commit | e106efc7801f8607c3453673a8c261cb59c3afb0 (patch) | |
| tree | 676bfe35c1401333a3e6069eaf9dfdb1c6b71af8 /gcc/tree-ssa-operands.c | |
| parent | 17dea42fc45256b06cb19bc36b18e77fdc0f20a6 (diff) | |
| download | gcc-e106efc7801f8607c3453673a8c261cb59c3afb0.zip gcc-e106efc7801f8607c3453673a8c261cb59c3afb0.tar.gz gcc-e106efc7801f8607c3453673a8c261cb59c3afb0.tar.bz2 | |
re PR tree-optimization/41490 (tree-ssa-sink does not really work)
2011-03-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/41490
* tree-ssa-dce.c (propagate_necessity): Handle returns without
value but with VUSE.
* tree-ssa-operands.c (parse_ssa_operands): Add a VUSE on all
return statements.
* tree-ssa-sink.c (statement_sink_location): Fix store sinking.
* tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Handle virtual PHIs.
* tree-tailcall.c (find_tail_calls): Ignore returns.
* gcc.dg/tree-ssa/ssa-sink-6.c: New testcase.
* gcc.dg/tree-ssa/ssa-sink-7.c: Likewise.
* gcc.dg/tree-ssa/ssa-sink-8.c: Likewise.
* gcc.dg/tree-ssa/ssa-sink-9.c: Likewise.
* g++.dg/tree-ssa/pr33604.C: Adjust.
From-SVN: r170984
Diffstat (limited to 'gcc/tree-ssa-operands.c')
| -rw-r--r-- | gcc/tree-ssa-operands.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-ssa-operands.c b/gcc/tree-ssa-operands.c index d05f814..7e2600d 100644 --- a/gcc/tree-ssa-operands.c +++ b/gcc/tree-ssa-operands.c @@ -1065,6 +1065,9 @@ parse_ssa_operands (gimple stmt) /* Add call-clobbered operands, if needed. */ if (code == GIMPLE_CALL) maybe_add_call_vops (stmt); + + if (code == GIMPLE_RETURN) + append_vuse (gimple_vop (cfun)); } } |