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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 | |
| 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')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr41470.c | 18 | ||||
| -rw-r--r-- | gcc/tree-ssa-coalesce.c | 5 |
4 files changed, 35 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9e6e398..368899e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2009-09-26 Michael Matz <matz@suse.de> + PR lto/40758 + PR middle-end/41470 + * tree-ssa-coalesce.c (coalesce_ssa_name): Add only SSA names + that are mentioned in the body. + +2009-09-26 Michael Matz <matz@suse.de> + PR tree-optimization/41454 * tree-ssa-dom (stmts_to_rescan): Remove variable. (tree_ssa_dominator_optimize): Don't allocate and free it. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 2bfffbe..5f7fdf1 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2009-09-26 Michael Matz <matz@suse.de> + + PR lto/40758 + PR middle-end/41470 + * gcc.dg/pr41470.c: New test. + 2009-09-26 Eric Botcazou <ebotcazou@adacore.com> * gnat.dg/array9.adb: New test. diff --git a/gcc/testsuite/gcc.dg/pr41470.c b/gcc/testsuite/gcc.dg/pr41470.c new file mode 100644 index 0000000..1c029b4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr41470.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-fexceptions" } */ +void * +af (void *a) +{ + return a; +} +void +bf (void) +{ + void *p; + { + int i = 1; + char v[i]; + p = af (v); + } + cf (p); +} 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); |