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| author | Jan Hubicka <jh@suse.cz> | 2012-03-25 15:28:32 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2012-03-25 13:28:32 +0000 |
| commit | 47a1ae3c6a27bfd5875d70860d72ea31d4c98cc7 (patch) | |
| tree | 92acef700b091d82f1b0b19cc3a1903207a22d71 /gcc/ipa.c | |
| parent | e24e08d4e2c4d8f008bdf0dd7ed91449ba3f7787 (diff) | |
| download | gcc-47a1ae3c6a27bfd5875d70860d72ea31d4c98cc7.zip gcc-47a1ae3c6a27bfd5875d70860d72ea31d4c98cc7.tar.gz gcc-47a1ae3c6a27bfd5875d70860d72ea31d4c98cc7.tar.bz2 | |
re PR middle-end/51663 (Desirable/undesirable elimination of unused variables & functions at -O0, -O0 -flto and -O0 -fwhole-program)
PR lto/51663
* varpool.c (varpool_finalize_decl): Handle toplevel_reorder here.
(decide_is_variable_needed): Do not handle toplevel reorder here.
* cgraph.h (varpool_can_remove_if_no_refs): Likewise.
* ipa.c (cgraph_remove_unreachable_nodes): Remove unreachable vars
even at -O0.
From-SVN: r185777
Diffstat (limited to 'gcc/ipa.c')
| -rw-r--r-- | gcc/ipa.c | 9 |
1 files changed, 4 insertions, 5 deletions
@@ -419,11 +419,6 @@ cgraph_remove_unreachable_nodes (bool before_inlining_p, FILE *file) if (file) fprintf (file, "\n"); - /* We must release unused extern inlines or sanity checking will fail. Rest of transformations - are undesirable at -O0 since we do not want to remove anything. */ - if (!optimize) - return changed; - if (file) fprintf (file, "Reclaiming variables:"); for (vnode = varpool_nodes; vnode; vnode = vnext) @@ -463,6 +458,10 @@ cgraph_remove_unreachable_nodes (bool before_inlining_p, FILE *file) if (file) fprintf (file, "\n"); + /* Rest of transformations are undesirable at -O0. */ + if (!optimize) + return changed; + #ifdef ENABLE_CHECKING verify_cgraph (); #endif |