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| author | Michael Matz <matz@suse.de> | 2009-09-26 16:46:43 +0000 |
|---|---|---|
| committer | Michael Matz <matz@gcc.gnu.org> | 2009-09-26 16:46:43 +0000 |
| commit | 0ffd2048ea67899080038ca4fba0387c6b9d2d3c (patch) | |
| tree | fc0937d4c203e0e21e06fbed2a7077820564c6b4 /gcc/tree-ssa-coalesce.c | |
| parent | 03b6f8a219d3d7149ec4a69d9d75342e494a67b9 (diff) | |
| download | gcc-0ffd2048ea67899080038ca4fba0387c6b9d2d3c.zip gcc-0ffd2048ea67899080038ca4fba0387c6b9d2d3c.tar.gz gcc-0ffd2048ea67899080038ca4fba0387c6b9d2d3c.tar.bz2 | |
re PR lto/40758 ([LTO] ICE in partition_view_bitmap, at tree-ssa-live.c:331)
PR lto/40758
PR middle-end/41470
* tree-ssa-coalesce.c (coalesce_ssa_name): Add only SSA names
that are mentioned in the body.
testsuite/
* gcc.dg/pr41470.c: New test.
From-SVN: r152203
Diffstat (limited to 'gcc/tree-ssa-coalesce.c')
| -rw-r--r-- | gcc/tree-ssa-coalesce.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-ssa-coalesce.c b/gcc/tree-ssa-coalesce.c index 0164eca..5841aa0 100644 --- a/gcc/tree-ssa-coalesce.c +++ b/gcc/tree-ssa-coalesce.c @@ -1377,7 +1377,10 @@ coalesce_ssa_name (void) { tree a = ssa_name (i); - if (a && SSA_NAME_VAR (a) && !DECL_ARTIFICIAL (SSA_NAME_VAR (a))) + if (a + && SSA_NAME_VAR (a) + && !DECL_ARTIFICIAL (SSA_NAME_VAR (a)) + && (!has_zero_uses (a) || !SSA_NAME_IS_DEFAULT_DEF (a))) { tree *slot = (tree *) htab_find_slot (ssa_name_hash, a, INSERT); |