diff options
| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-05 14:58:07 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-05 14:58:07 +0000 |
| commit | 64685a89ef451c911b6c451057863487061ec0bc (patch) | |
| tree | 7defa2a131c1aee78633e3ed7d7b325c46ebf1dd /gcc/rtlanal.c | |
| parent | 2080d5efc4fa305a790e89276c848b2da0e0aae3 (diff) | |
| download | gcc-64685a89ef451c911b6c451057863487061ec0bc.tar.gz | |
PR rtl-optimization/26087
* rtlanal.c (canonicalize_condition): Do not cross basic block
boundaries.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110614 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 91fb4898b73..1390ad98529 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4508,6 +4508,7 @@ canonicalize_condition (rtx insn, rtx cond, int reverse, rtx *earliest, rtx op0, op1; int reverse_code = 0; enum machine_mode mode; + basic_block bb = BLOCK_FOR_INSN (insn); code = GET_CODE (cond); mode = GET_MODE (cond); @@ -4569,7 +4570,11 @@ canonicalize_condition (rtx insn, rtx cond, int reverse, rtx *earliest, if ((prev = prev_nonnote_insn (prev)) == 0 || !NONJUMP_INSN_P (prev) - || FIND_REG_INC_NOTE (prev, NULL_RTX)) + || FIND_REG_INC_NOTE (prev, NULL_RTX) + /* In cfglayout mode, there do not have to be labels at the + beginning of a block, or jumps at the end, so the previous + conditions would not stop us when we reach bb boundary. */ + || BLOCK_FOR_INSN (prev) != bb) break; set = set_of (op0, prev); |