diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 16 |
2 files changed, 17 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e8ebe14f133..561e3dae7c9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2017-11-03 Segher Boessenkool <segher@kernel.crashing.org> + * config/rs6000/rs6000.md (*lt0_disi): Delete. + (*lt0_<mode>di, *lt0_<mode>si): New. + +2017-11-03 Segher Boessenkool <segher@kernel.crashing.org> + * config/rs6000/rs6000.md (move_from_CR_ov_bit): Change condition to TARGET_PAIRED_FLOAT. diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 3ad702daa06..2ef028f93b3 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -3829,11 +3829,19 @@ ; Special case for less-than-0. We can do it with just one machine ; instruction, but the generic optimizers do not realise it is cheap. -(define_insn "*lt0_disi" - [(set (match_operand:DI 0 "gpc_reg_operand" "=r") - (lt:DI (match_operand:SI 1 "gpc_reg_operand" "r") - (const_int 0)))] +(define_insn "*lt0_<mode>di" + [(set (match_operand:GPR 0 "gpc_reg_operand" "=r") + (lt:GPR (match_operand:DI 1 "gpc_reg_operand" "r") + (const_int 0)))] "TARGET_POWERPC64" + "srdi %0,%1,63" + [(set_attr "type" "shift")]) + +(define_insn "*lt0_<mode>si" + [(set (match_operand:GPR 0 "gpc_reg_operand" "=r") + (lt:GPR (match_operand:SI 1 "gpc_reg_operand" "r") + (const_int 0)))] + "" "rlwinm %0,%1,1,31,31" [(set_attr "type" "shift")]) |