diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 3ee85aaf9e1..023d650ea52 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -19172,12 +19172,19 @@ rs6000_emit_cbranch (enum machine_mode mode, rtx operands[]) } else // Use the PPE fused compare-branch instructions { - emit_jump_insn(gen_rtx_SET(VOIDmode, - pc_rtx, - gen_rtx_IF_THEN_ELSE(VOIDmode, - operands[0], - loc_ref, - pc_rtx))); + rtx cc_clobber = gen_rtx_CLOBBER (CCmode, gen_rtx_REG(CCmode,CR0_REGNO)); + emit_jump_insn + ( gen_rtx_PARALLEL + (VOIDmode, + gen_rtvec(2, + gen_rtx_SET(VOIDmode, + pc_rtx, + gen_rtx_IF_THEN_ELSE(VOIDmode, + operands[0], + loc_ref, + pc_rtx)), + cc_clobber)) + ); } } @@ -19188,7 +19195,7 @@ rs6000_emit_cbranch (enum machine_mode mode, rtx operands[]) OP is the conditional expression. XEXP (OP, 0) is assumed to be a condition code register and its mode specifies what kind of - comparison we made. + comparison is being done. REVERSED is nonzero if we should reverse the sense of the comparison. @@ -19208,7 +19215,7 @@ output_fused_cbranch (rtx operands[], const char *label, rtx insn) if(need_longbranch) code = reverse_condition (code); - + switch (code) { case NE: @@ -19260,7 +19267,7 @@ output_fused_cbranch (rtx operands[], const char *label, rtx insn) s += sprintf(s, "cmp%sw%sb%s %d, %d", logical, immed, ccode, REGNO(operands[2]), op3); - + if (need_longbranch) s += sprintf(s, ",$+8\n\tb %s", label); else @@ -19282,7 +19289,7 @@ output_fused_bnbwi(rtx operands[], const char *label, bool longbranch) if(longbranch) code = reverse_condition (code); - + switch (code) { case NE: // not eq zero so it's 1 @@ -19299,7 +19306,7 @@ output_fused_bnbwi(rtx operands[], const char *label, bool longbranch) bit_value, regno, bitpos); - + if (longbranch) s += sprintf(s, ",$+8\n\tb %s", label); else |
