diff options
Diffstat (limited to 'gcc/sched-deps.c')
| -rw-r--r-- | gcc/sched-deps.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c index b2393bf28fb..4c459e6587f 100644 --- a/gcc/sched-deps.c +++ b/gcc/sched-deps.c @@ -2834,34 +2834,30 @@ static void sched_macro_fuse_insns (rtx_insn *insn) { rtx_insn *prev; - + prev = prev_nonnote_nondebug_insn (insn); + if (!prev) + return; + if (any_condjump_p (insn)) { unsigned int condreg1, condreg2; rtx cc_reg_1; targetm.fixed_condition_code_regs (&condreg1, &condreg2); cc_reg_1 = gen_rtx_REG (CCmode, condreg1); - prev = prev_nonnote_nondebug_insn (insn); - if (!reg_referenced_p (cc_reg_1, PATTERN (insn)) - || !prev - || !modified_in_p (cc_reg_1, prev)) - return; + if (reg_referenced_p (cc_reg_1, PATTERN (insn)) + && modified_in_p (cc_reg_1, prev)) + { + if (targetm.sched.macro_fusion_pair_p (prev, insn)) + SCHED_GROUP_P (insn) = 1; + return; + } } - else - { - rtx insn_set = single_set (insn); - - prev = prev_nonnote_nondebug_insn (insn); - if (!prev - || !insn_set - || !single_set (prev)) - return; + if (single_set (insn) && single_set (prev)) + { + if (targetm.sched.macro_fusion_pair_p (prev, insn)) + SCHED_GROUP_P (insn) = 1; } - - if (targetm.sched.macro_fusion_pair_p (prev, insn)) - SCHED_GROUP_P (insn) = 1; - } /* Get the implicit reg pending clobbers for INSN and save them in TEMP. */ |