setnbc[r] is like setbc[r], but it writes -1 instead of 1 to the GPR.
2020-05-06 Segher Boessenkool <seg...@kernel.crashing.org>
* config/rs6000/rs6000.md (*setnbc_<un>signed_<GPR:mode>): New
define_insn.
(*setnbcr_<un>signed_<GPR:mode>): New define_insn.
(*neg_eq_<mode>): Avoid for TARGET_FUTURE; add missing && 1.
(*neg_ne_<mode>): Likewise.
---
gcc/config/rs6000/rs6000.md | 27 +++++++++++++++++++++++----
1 file changed, 23 insertions(+), 4 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index e8dc576779a..c02c2e1de72 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -5157,6 +5157,25 @@ (define_insn "*setbcr_<un>signed_<GPR:mode>"
"setbcr %0,%j1"
[(set_attr "type" "isel")])
+; Set Negative Boolean Condition (Reverse)
+(define_insn "*setnbc_<un>signed_<GPR:mode>"
+ [(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
+ (neg:GPR (match_operator:GPR 1 "scc_comparison_operator"
+ [(match_operand:CCEITHER 2 "cc_reg_operand" "y")
+ (const_int 0)])))]
+ "TARGET_FUTURE"
+ "setnbc %0,%j1"
+ [(set_attr "type" "isel")])
+
+(define_insn "*setnbcr_<un>signed_<GPR:mode>"
+ [(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
+ (neg:GPR (match_operator:GPR 1 "scc_rev_comparison_operator"
+ [(match_operand:CCEITHER 2 "cc_reg_operand" "y")
+ (const_int 0)])))]
+ "TARGET_FUTURE"
+ "setnbcr %0,%j1"
+ [(set_attr "type" "isel")])
+
;; Floating point conditional move
(define_expand "mov<mode>cc"
[(set (match_operand:SFDF 0 "gpc_reg_operand")
@@ -12062,9 +12081,9 @@ (define_insn_and_split "*neg_eq_<mode>"
(clobber (match_scratch:P 3 "=r"))
(clobber (match_scratch:P 4 "=r"))
(clobber (reg:P CA_REGNO))]
- ""
+ "!TARGET_FUTURE"
"#"
- ""
+ "&& 1"
[(parallel [(set (match_dup 4)
(plus:P (match_dup 3)
(const_int -1)))
@@ -12094,9 +12113,9 @@ (define_insn_and_split "*neg_ne_<mode>"
(clobber (match_scratch:P 3 "=r"))
(clobber (match_scratch:P 4 "=r"))
(clobber (reg:P CA_REGNO))]
- ""
+ "!TARGET_FUTURE"
"#"
- ""
+ "&& 1"
[(parallel [(set (match_dup 4)
(neg:P (match_dup 3)))
(set (reg:P CA_REGNO)
--
2.17.1
