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| author | Andrey Belevantsev <abel@ispras.ru> | 2009-11-13 17:32:52 +0300 |
|---|---|---|
| committer | Andrey Belevantsev <abel@gcc.gnu.org> | 2009-11-13 17:32:52 +0300 |
| commit | 268bab853ddd5736056a371fd33aedd68e81cff9 (patch) | |
| tree | cb47ff3d18e7195315428e596f3a0cadf5d29abf | |
| parent | bcf3377540d2e5d8ea63fdb8aed16cff16f6ba85 (diff) | |
| download | gcc-268bab853ddd5736056a371fd33aedd68e81cff9.zip gcc-268bab853ddd5736056a371fd33aedd68e81cff9.tar.gz gcc-268bab853ddd5736056a371fd33aedd68e81cff9.tar.bz2 | |
re PR rtl-optimization/41697 (ICE on gcc.c-torture/compile/20090917-1.c)
PR rtl-optimization/41697
* sel-sched-ir.c (fallthru_bb_of_jump): Bail out when a block with
a conditional jump has a single successor.
From-SVN: r154148
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/sel-sched-ir.c | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 39eb3c6..8eb3d84 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2009-11-13 Andrey Belevantsev <abel@ispras.ru> + PR rtl-optimization/41697 + * sel-sched-ir.c (fallthru_bb_of_jump): Bail out when a block with + a conditional jump has a single successor. + +2009-11-13 Andrey Belevantsev <abel@ispras.ru> + * sched-deps.c (init_deps): New parameter lazy_reg_last. Don't allocate reg_last when in case lazy_reg_last is true. (init_deps_reg_last): New. diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c index 1075074..bd5560d 100644 --- a/gcc/sel-sched-ir.c +++ b/gcc/sel-sched-ir.c @@ -4323,6 +4323,11 @@ fallthru_bb_of_jump (rtx jump) if (!any_condjump_p (jump)) return NULL; + /* A basic block that ends with a conditional jump may still have one successor + (and be followed by a barrier), we are not interested. */ + if (single_succ_p (BLOCK_FOR_INSN (jump))) + return NULL; + return FALLTHRU_EDGE (BLOCK_FOR_INSN (jump))->dest; } |