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rs6000: New type attribute value "halfmul" 

This is for the legacy integer multiply-accumulate instructions.
Quite a mouthful, and "mulhw" is also a terrible name since we already
have a machine instruction called exactly that.  Hence "halfmul".

Also fixes the titan automaton description for this.

From-SVN: r210866
This commit is contained in:
Segher Boessenkool 2014-05-23 18:34:01 +02:00 committed by Segher Boessenkool
parent 1be6301ac1
commit 1263d6429d
6 changed files with 52 additions and 40 deletions
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16
gcc/ChangeLog
View File

@ -1,3 +1,19 @@
2014-05-23 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.md (type): Add new value "halfmul".
(*macchwc, *macchw, *macchwuc, *macchwu, *machhwc, *machhw,
*machhwuc, *machhwu, *maclhwc, *maclhw, *maclhwuc, *maclhwu,
*nmacchwc, *nmacchw, *nmachhwc, *nmachhw, *nmaclhwc, *nmaclhw,
*mulchwc, *mulchw, *mulchwuc, *mulchwu, *mulhhwc, *mulhhw,
*mulhhwuc, *mulhhwu, *mullhwc, *mullhw, *mullhwuc, *mullhwu):
Use it.
* config/rs6000/40x.md (ppc405-imul3): Add type halfmul.
* config/rs6000/440.md (ppc440-imul2): Add type halfmul.
* config/rs6000/476.md (ppc476-imul): Add type halfmul.
* config/rs6000/titan.md: Delete nonsensical comment.
(titan_imul): Add type imul3.
(titan_mulhw): Remove type imul3; add type halfmul.
2014-05-23 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.md (type): Reorder, reformat.

2
gcc/config/rs6000/40x.md
View File

@ -73,7 +73,7 @@
"iu_40x*2")
(define_insn_reservation "ppc405-imul3" 2
(and (eq_attr "type" "imul3")
(and (eq_attr "type" "imul3,halfmul")
(eq_attr "cpu" "ppc405"))
"iu_40x")

2
gcc/config/rs6000/440.md
View File

@ -76,7 +76,7 @@
"ppc440_issue,ppc440_i_pipe")
(define_insn_reservation "ppc440-imul2" 2
(and (eq_attr "type" "imul2,imul3")
(and (eq_attr "type" "imul2,imul3,halfmul")
(eq_attr "cpu" "ppc440"))
"ppc440_issue,ppc440_i_pipe")

2
gcc/config/rs6000/476.md
View File

@ -82,7 +82,7 @@
ppc476_i_pipe")
(define_insn_reservation "ppc476-imul" 4
(and (eq_attr "type" "imul,imul_compare,imul2,imul3")
(and (eq_attr "type" "imul,imul_compare,imul2,imul3,halfmul")
(eq_attr "cpu" "ppc476"))
"ppc476_issue,\
ppc476_i_pipe")

62
gcc/config/rs6000/rs6000.md
View File

@ -160,7 +160,7 @@
(define_attr "type"
"integer,two,three,
shift,var_shift_rotate,insert_word,insert_dword,
imul,imul2,imul3,lmul,idiv,ldiv,
imul,imul2,imul3,lmul,halfmul,idiv,ldiv,
exts,cntlz,popcnt,isel,
load,store,fpload,fpstore,vecload,vecstore,
cmp,
@ -1248,7 +1248,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"macchw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*macchw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1260,7 +1260,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"macchw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*macchwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1280,7 +1280,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"macchwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*macchwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1292,7 +1292,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"macchwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*machhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1314,7 +1314,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"machhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*machhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1327,7 +1327,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"machhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*machhwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1349,7 +1349,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"machhwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*machhwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1362,7 +1362,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"machhwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*maclhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1380,7 +1380,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"maclhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*maclhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1391,7 +1391,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"maclhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*maclhwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1409,7 +1409,7 @@
(match_dup 4)))]
"TARGET_MULHW"
"maclhwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*maclhwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1420,7 +1420,7 @@
(match_operand:SI 3 "gpc_reg_operand" "0")))]
"TARGET_MULHW"
"maclhwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmacchwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1440,7 +1440,7 @@
(match_dup 1)))))]
"TARGET_MULHW"
"nmacchw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmacchw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1452,7 +1452,7 @@
(match_operand:HI 1 "gpc_reg_operand" "r")))))]
"TARGET_MULHW"
"nmacchw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmachhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1474,7 +1474,7 @@
(const_int 16)))))]
"TARGET_MULHW"
"nmachhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmachhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1487,7 +1487,7 @@
(const_int 16)))))]
"TARGET_MULHW"
"nmachhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmaclhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1505,7 +1505,7 @@
(match_dup 2)))))]
"TARGET_MULHW"
"nmaclhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*nmaclhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1516,7 +1516,7 @@
(match_operand:HI 2 "gpc_reg_operand" "r")))))]
"TARGET_MULHW"
"nmaclhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulchwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1534,7 +1534,7 @@
(match_dup 1))))]
"TARGET_MULHW"
"mulchw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulchw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1545,7 +1545,7 @@
(match_operand:HI 1 "gpc_reg_operand" "r"))))]
"TARGET_MULHW"
"mulchw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulchwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1563,7 +1563,7 @@
(match_dup 1))))]
"TARGET_MULHW"
"mulchwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulchwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1574,7 +1574,7 @@
(match_operand:HI 1 "gpc_reg_operand" "r"))))]
"TARGET_MULHW"
"mulchwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulhhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1594,7 +1594,7 @@
(const_int 16))))]
"TARGET_MULHW"
"mulhhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulhhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1606,7 +1606,7 @@
(const_int 16))))]
"TARGET_MULHW"
"mulhhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulhhwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1626,7 +1626,7 @@
(const_int 16))))]
"TARGET_MULHW"
"mulhhwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mulhhwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1638,7 +1638,7 @@
(const_int 16))))]
"TARGET_MULHW"
"mulhhwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mullhwc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1654,7 +1654,7 @@
(match_dup 2))))]
"TARGET_MULHW"
"mullhw. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mullhw"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1664,7 +1664,7 @@
(match_operand:HI 2 "gpc_reg_operand" "r"))))]
"TARGET_MULHW"
"mullhw %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mullhwuc"
[(set (match_operand:CC 3 "cc_reg_operand" "=x")
@ -1680,7 +1680,7 @@
(match_dup 2))))]
"TARGET_MULHW"
"mullhwu. %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
(define_insn "*mullhwu"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
@ -1690,7 +1690,7 @@
(match_operand:HI 2 "gpc_reg_operand" "r"))))]
"TARGET_MULHW"
"mullhwu %0,%1,%2"
[(set_attr "type" "imul3")])
[(set_attr "type" "halfmul")])
;; IBM 405, 440, 464 and 476 string-search dlmzb instruction support.
(define_insn "dlmzb"

8
gcc/config/rs6000/titan.md
View File

@ -38,17 +38,13 @@
(eq_attr "cpu" "titan"))
"titan_issue,titan_fxu_sh")
;; Keep the titan_imul and titan_mulhw (half-word) rules in order, to
;; ensure the proper match: the half-word instructions are tagged as
;; imul3 only, whereas regular multiplys will always carry a imul tag.
(define_insn_reservation "titan_imul" 5
(and (eq_attr "type" "imul,imul2,imul_compare")
(and (eq_attr "type" "imul,imul2,imul3,imul_compare")
(eq_attr "cpu" "titan"))
"titan_issue,titan_fxu_sh,nothing*5,titan_fxu_wb")
(define_insn_reservation "titan_mulhw" 4
(and (eq_attr "type" "imul3")
(and (eq_attr "type" "halfmul")
(eq_attr "cpu" "titan"))
"titan_issue,titan_fxu_sh,nothing*4,titan_fxu_wb")