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re PR debug/46258 (gcc.dg/tree-ssa/pr23820.c: -fcompare-debug failure with -O3 -ffloat-store)

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PR debug/46258
* tree-cfg.c (replace_uses_by): Don't mark BBs as altered on
debug stmts.

From-SVN: r167162
This commit is contained in:
Alexandre Oliva 2010-11-26 04:27:24 +00:00 committed by Alexandre Oliva
parent 5715dafb8a
commit 4314b5fcf8
2 changed files with 7 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-11-26 Alexandre Oliva <aoliva@redhat.com>
PR debug/46258
* tree-cfg.c (replace_uses_by): Don't mark BBs as altered on
debug stmts.
2010-11-26 Alexandre Oliva <aoliva@redhat.com> 2010-11-26 Alexandre Oliva <aoliva@redhat.com>
* toplev.c (finalize): Add no_backend parameter. Don't finish * toplev.c (finalize): Add no_backend parameter. Don't finish

2
gcc/tree-cfg.c
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@ -1570,7 +1570,7 @@ replace_uses_by (tree name, tree val)
size_t i; size_t i;
fold_stmt_inplace (stmt); fold_stmt_inplace (stmt);
if (cfgcleanup_altered_bbs) if (cfgcleanup_altered_bbs && !is_gimple_debug (stmt))
bitmap_set_bit (cfgcleanup_altered_bbs, gimple_bb (stmt)->index); bitmap_set_bit (cfgcleanup_altered_bbs, gimple_bb (stmt)->index);
/* FIXME. This should go in update_stmt. */ /* FIXME. This should go in update_stmt. */