From: Segher Boessenkool <segher@kernel.crashing.org>
To: gcc-patches@gcc.gnu.org
Cc: dje.gcc@gmail.com, Segher Boessenkool <segher@kernel.crashing.org>
Subject: [PATCH] rs6000: New iterator CCEITHER
Date: Sat, 15 Jun 2019 00:16:00 -0000 [thread overview]
Message-ID: <7e834747176614058c525a9d0f25d92bede1db76.1560557395.git.segher@kernel.crashing.org> (raw)
This expands to both CC and CCUNS, it's useful for isel for example.
Tested on powerpc64le-linux; committing to trunk.
Segher
2019-06-15 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.md (CCEITHER): New define_mode_iterator.
(un): New define_mode_attr.
(isel_signed_<mode>, isel_unsigned_<mode>): Delete, merge into ...
(isel_<un>signed_<GPR:mode>): ... this. New define_insn.
(isel_reversed_signed_<mode>, isel_reversed_unsigned_<mode>): Delete,
merge into ...
(isel_reversed_<un>signed_<GPR:mode>): ... this. New define_insn.
---
gcc/config/rs6000/rs6000.md | 37 ++++++-------------------------------
1 file changed, 6 insertions(+), 31 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index b1f3bc3..eb03e4d 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -5055,23 +5055,13 @@ (define_expand "mov<mode>cc"
;; leave out the mode in operand 4 and use one pattern, but reload can
;; change the mode underneath our feet and then gets confused trying
;; to reload the value.
-(define_insn "isel_signed_<mode>"
+(define_mode_iterator CCEITHER [CC CCUNS])
+(define_mode_attr un [(CC "") (CCUNS "un")])
+(define_insn "isel_<un>signed_<GPR:mode>"
[(set (match_operand:GPR 0 "gpc_reg_operand" "=r,r")
(if_then_else:GPR
(match_operator 1 "scc_comparison_operator"
- [(match_operand:CC 4 "cc_reg_operand" "y,y")
- (const_int 0)])
- (match_operand:GPR 2 "reg_or_zero_operand" "O,b")
- (match_operand:GPR 3 "gpc_reg_operand" "r,r")))]
- "TARGET_ISEL"
- "isel %0,%2,%3,%j1"
- [(set_attr "type" "isel")])
-
-(define_insn "isel_unsigned_<mode>"
- [(set (match_operand:GPR 0 "gpc_reg_operand" "=r,r")
- (if_then_else:GPR
- (match_operator 1 "scc_comparison_operator"
- [(match_operand:CCUNS 4 "cc_reg_operand" "y,y")
+ [(match_operand:CCEITHER 4 "cc_reg_operand" "y,y")
(const_int 0)])
(match_operand:GPR 2 "reg_or_zero_operand" "O,b")
(match_operand:GPR 3 "gpc_reg_operand" "r,r")))]
@@ -5083,26 +5073,11 @@ (define_insn "isel_unsigned_<mode>"
;; isel can handle reversed comparisons so long as the operands are
;; registers.
-(define_insn "*isel_reversed_signed_<mode>"
+(define_insn "*isel_reversed_<un>signed_<GPR:mode>"
[(set (match_operand:GPR 0 "gpc_reg_operand" "=r,r")
(if_then_else:GPR
(match_operator 1 "scc_rev_comparison_operator"
- [(match_operand:CC 4 "cc_reg_operand" "y,y")
- (const_int 0)])
- (match_operand:GPR 2 "gpc_reg_operand" "r,r")
- (match_operand:GPR 3 "reg_or_zero_operand" "O,b")))]
- "TARGET_ISEL"
-{
- PUT_CODE (operands[1], reverse_condition (GET_CODE (operands[1])));
- return "isel %0,%3,%2,%j1";
-}
- [(set_attr "type" "isel")])
-
-(define_insn "*isel_reversed_unsigned_<mode>"
- [(set (match_operand:GPR 0 "gpc_reg_operand" "=r,r")
- (if_then_else:GPR
- (match_operator 1 "scc_rev_comparison_operator"
- [(match_operand:CCUNS 4 "cc_reg_operand" "y,y")
+ [(match_operand:CCEITHER 4 "cc_reg_operand" "y,y")
(const_int 0)])
(match_operand:GPR 2 "gpc_reg_operand" "r,r")
(match_operand:GPR 3 "reg_or_zero_operand" "O,b")))]
--
1.8.3.1
reply other threads:[~2019-06-15 0:16 UTC|newest]
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