Emulate MMX plusminus/sat_plusminus with SSE. Only SSE register source
operand is allowed.
PR target/89021
* config/i386/mmx.md (MMXMODEI8): Require TARGET_SSE2 for V1DI.
(plusminus:mmx_<plusminus_insn><mode>3): Check
TARGET_MMX_WITH_SSE.
(sat_plusminus:mmx_<plusminus_insn><mode>3): Likewise.
(<plusminus_insn><mode>3): New.
(*mmx_<plusminus_insn><mode>3): Add SSE emulation.
(*mmx_<plusminus_insn><mode>3): Likewise.
---
gcc/config/i386/mmx.md | 51 ++++++++++++++++++++++++++++--------------
1 file changed, 34 insertions(+), 17 deletions(-)
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 8ae24439e8d..b6277789091 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -45,7 +45,7 @@
;; 8 byte integral modes handled by MMX (and by extension, SSE)
(define_mode_iterator MMXMODEI [V8QI V4HI V2SI])
-(define_mode_iterator MMXMODEI8 [V8QI V4HI V2SI V1DI])
+(define_mode_iterator MMXMODEI8 [V8QI V4HI V2SI (V1DI "TARGET_SSE2")])
;; All 8-byte vector modes handled by MMX
(define_mode_iterator MMXMODE [V8QI V4HI V2SI V1DI V2SF])
@@ -665,37 +665,54 @@
(plusminus:MMXMODEI8
(match_operand:MMXMODEI8 1 "nonimmediate_operand")
(match_operand:MMXMODEI8 2 "nonimmediate_operand")))]
- "TARGET_MMX || (TARGET_SSE2 && <MODE>mode == V1DImode)"
+ "TARGET_MMX || TARGET_MMX_WITH_SSE"
+ "ix86_fixup_binary_operands_no_copy (<CODE>, <MODE>mode, operands);")
+
+(define_expand "<plusminus_insn><mode>3"
+ [(set (match_operand:MMXMODEI 0 "register_operand")
+ (plusminus:MMXMODEI
+ (match_operand:MMXMODEI 1 "nonimmediate_operand")
+ (match_operand:MMXMODEI 2 "nonimmediate_operand")))]
+ "TARGET_MMX_WITH_SSE"
"ix86_fixup_binary_operands_no_copy (<CODE>, <MODE>mode, operands);")
(define_insn "*mmx_<plusminus_insn><mode>3"
- [(set (match_operand:MMXMODEI8 0 "register_operand" "=y")
+ [(set (match_operand:MMXMODEI8 0 "register_operand" "=y,x,Yv")
(plusminus:MMXMODEI8
- (match_operand:MMXMODEI8 1 "nonimmediate_operand" "<comm>0")
- (match_operand:MMXMODEI8 2 "nonimmediate_operand" "ym")))]
- "(TARGET_MMX || (TARGET_SSE2 && <MODE>mode == V1DImode))
+ (match_operand:MMXMODEI8 1 "nonimmediate_operand" "<comm>0,0,Yv")
+ (match_operand:MMXMODEI8 2 "nonimmediate_operand" "ym,x,Yv")))]
+ "(TARGET_MMX || TARGET_MMX_WITH_SSE)
&& ix86_binary_operator_ok (<CODE>, <MODE>mode, operands)"
- "p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}"
- [(set_attr "type" "mmxadd")
- (set_attr "mode" "DI")])
+ "@
+ p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}
+ p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}
+ vp<plusminus_mnemonic><mmxvecsize>\t{%2, %1, %0|%0, %1, %2}"
+ [(set_attr "mmx_isa" "native,x64_noavx,x64_avx")
+ (set_attr "type" "mmxadd,sseadd,sseadd")
+ (set_attr "mode" "DI,TI,TI")])
(define_expand "mmx_<plusminus_insn><mode>3"
[(set (match_operand:MMXMODE12 0 "register_operand")
(sat_plusminus:MMXMODE12
(match_operand:MMXMODE12 1 "nonimmediate_operand")
(match_operand:MMXMODE12 2 "nonimmediate_operand")))]
- "TARGET_MMX"
+ "TARGET_MMX || TARGET_MMX_WITH_SSE"
"ix86_fixup_binary_operands_no_copy (<CODE>, <MODE>mode, operands);")
(define_insn "*mmx_<plusminus_insn><mode>3"
- [(set (match_operand:MMXMODE12 0 "register_operand" "=y")
+ [(set (match_operand:MMXMODE12 0 "register_operand" "=y,x,Yv")
(sat_plusminus:MMXMODE12
- (match_operand:MMXMODE12 1 "nonimmediate_operand" "<comm>0")
- (match_operand:MMXMODE12 2 "nonimmediate_operand" "ym")))]
- "TARGET_MMX && ix86_binary_operator_ok (<CODE>, <MODE>mode, operands)"
- "p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}"
- [(set_attr "type" "mmxadd")
- (set_attr "mode" "DI")])
+ (match_operand:MMXMODE12 1 "nonimmediate_operand" "<comm>0,0,Yv")
+ (match_operand:MMXMODE12 2 "nonimmediate_operand" "ym,x,Yv")))]
+ "(TARGET_MMX || TARGET_MMX_WITH_SSE)
+ && ix86_binary_operator_ok (<CODE>, <MODE>mode, operands)"
+ "@
+ p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}
+ p<plusminus_mnemonic><mmxvecsize>\t{%2, %0|%0, %2}
+ vp<plusminus_mnemonic><mmxvecsize>\t{%2, %1, %0|%0, %1, %2}"
+ [(set_attr "mmx_isa" "native,x64_noavx,x64_avx")
+ (set_attr "type" "mmxadd,sseadd,sseadd")
+ (set_attr "mode" "DI,TI,TI")])
(define_expand "mmx_mulv4hi3"
[(set (match_operand:V4HI 0 "register_operand")
--
2.20.1
