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| author | Richard Guenther <rguenther@suse.de> | 2008-07-07 15:11:29 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-07-07 15:11:29 +0000 |
| commit | 115340c79fdd40c3b8c809ef81a1deebec0a2500 (patch) | |
| tree | afd0ad862ac893fe8d11c0aaafd31d7e4f0e6d42 /gcc/tree-flow-inline.h | |
| parent | 511e41e54d2f5bd036740518781e126ecccbad49 (diff) | |
| download | gcc-115340c79fdd40c3b8c809ef81a1deebec0a2500.zip gcc-115340c79fdd40c3b8c809ef81a1deebec0a2500.tar.gz gcc-115340c79fdd40c3b8c809ef81a1deebec0a2500.tar.bz2 | |
re PR target/36713 (r137252 breaks -O2 optimization on x86_64-unknown-linux-gnu)
2008-07-07 Richard Guenther <rguenther@suse.de>
PR tree-optimization/36713
* tree-flow-inline.h (is_call_used): New function.
* tree-nrv.c (dest_safe_for_nrv_p): Use it.
* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.
* tree-outof-ssa.c (create_temp): Set call-used flag if required.
From-SVN: r137571
Diffstat (limited to 'gcc/tree-flow-inline.h')
| -rw-r--r-- | gcc/tree-flow-inline.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h index bff697d..19a3002 100644 --- a/gcc/tree-flow-inline.h +++ b/gcc/tree-flow-inline.h @@ -881,7 +881,15 @@ factoring_name_p (const_tree name) return TREE_CODE (SSA_NAME_VAR (name)) == MEMORY_PARTITION_TAG; } -/* Return true if VAR is a clobbered by function calls. */ +/* Return true if VAR is used by function calls. */ +static inline bool +is_call_used (const_tree var) +{ + return (var_ann (var)->call_clobbered + || bitmap_bit_p (gimple_call_used_vars (cfun), DECL_UID (var))); +} + +/* Return true if VAR is clobbered by function calls. */ static inline bool is_call_clobbered (const_tree var) { |