diff options
| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-29 02:39:20 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-29 02:39:20 +0000 |
| commit | 720cd6a6be0db92c068869e0bc5828252ae415ed (patch) | |
| tree | 8095015d66f0a6bd9b60a890c1be56064e569ee9 /gcc/config/epiphany | |
| parent | 324ca37733c5bb9e18452a5e81a12f6f42fd1e4d (diff) | |
| download | gcc-720cd6a6be0db92c068869e0bc5828252ae415ed.tar.gz | |
* config/epiphany/epiphany.md (isub_i+1): Work around generator bug.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193919 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/epiphany')
| -rw-r--r-- | gcc/config/epiphany/epiphany.md | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/config/epiphany/epiphany.md b/gcc/config/epiphany/epiphany.md index 21e619c2dea..fb55e3846fd 100644 --- a/gcc/config/epiphany/epiphany.md +++ b/gcc/config/epiphany/epiphany.md @@ -1024,19 +1024,22 @@ ; use next_active_insn to look at the 'following' insn. That should ; exist, because peephole2 runs after reload, and there has to be ; a return after an fp_int insn. +; ??? However, we can not even ordinarily match the preceding insn; +; there is some bug in the generators such that then it leaves out +; the check for PARALLEL before the length check for the then-second +; main insn. Observed when compiling compatibility-atomic-c++0x.cc +; from libstdc++-v3. (define_peephole2 - [(match_parallel 5 "float_operation" [(match_operand 6 "" "")]) - (match_parallel 3 "float_operation" + [(match_parallel 3 "float_operation" [(set (match_operand:SI 0 "gpr_operand" "") (match_operator:SI 4 "addsub_operator" [(match_operand:SI 1 "gpr_operand" "") (match_operand:SI 2 "gpr_operand" "")])) (clobber (reg:CC_FP CCFP_REGNUM))])] - "get_attr_sched_use_fpu (peep2_next_insn (0)) - && peep2_regno_dead_p (2, CC_REGNUM) - && get_attr_sched_use_fpu (next_active_insn (peep2_next_insn (1)))" - [(match_dup 5) - (parallel [(set (match_dup 0) (match_dup 4)) + "get_attr_sched_use_fpu (prev_active_insn (peep2_next_insn (0))) + && peep2_regno_dead_p (1, CC_REGNUM) + && get_attr_sched_use_fpu (next_active_insn (peep2_next_insn (0)))" + [(parallel [(set (match_dup 0) (match_dup 4)) (clobber (reg:CC CC_REGNUM))])] ) |