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| author | cltang <cltang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-03-10 14:57:30 +0000 |
|---|---|---|
| committer | cltang <cltang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-03-10 14:57:30 +0000 |
| commit | bd279947031bbfda2a8ff1b0f0cdb74b6840a4a4 (patch) | |
| tree | 69336bab4f85cb0fcbbc444fc2c6c1c57de424ff | |
| parent | 5f2f65e659c1d4bdb5c7b15701eceeaa6a3d1f8f (diff) | |
| download | ppe42-gcc-bd279947031bbfda2a8ff1b0f0cdb74b6840a4a4.tar.gz ppe42-gcc-bd279947031bbfda2a8ff1b0f0cdb74b6840a4a4.zip | |
2012-03-10 Chung-Lin Tang <cltang@codesourcery.com>
PR rtl-optimization/52528
* combine.c (can_combine_p): Add setting of subst_low_luid
before call to expand_field_assignment().
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185175 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/combine.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 06d562bff02..b5e3b36ce76 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-03-10 Chung-Lin Tang <cltang@codesourcery.com> + + PR rtl-optimization/52528 + * combine.c (can_combine_p): Add setting of subst_low_luid + before call to expand_field_assignment(). + 2012-03-09 Sandra Loosemore <sandra@codesourcery.com> * doc/invoke.texi: Use correct names/markup for "GCC", "GDB", "ld", diff --git a/gcc/combine.c b/gcc/combine.c index d06de04041e..ab825e4ee98 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -1822,6 +1822,10 @@ can_combine_p (rtx insn, rtx i3, rtx pred ATTRIBUTE_UNUSED, if (set == 0) return 0; + /* The simplification in expand_field_assignment may call back to + get_last_value, so set safe guard here. */ + subst_low_luid = DF_INSN_LUID (insn); + set = expand_field_assignment (set); src = SET_SRC (set), dest = SET_DEST (set); |
