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riscv-gcc-1
Commit bc9c7a36 by Jim Wilson
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(*): Change 'f' constraint for dest to '*f' if it is not the only alternative. 

(*):  Change 'f' constraint for dest to '*f' if it is not the
only alternative.  Add '*f' dest constraints to all patterns where
it is valid but was previously missing.

From-SVN: r2435
parent 7c080174
Showing with 29 additions and 22 deletions
gcc/config/i960/i960.md
......@@ -22,6 +22,13 @@
;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
;; There are very few (4) 'f' registers, they can't be loaded/stored from/to
;; memory, and some instructions explicitly require them, so we get better
;; code by discouraging psuedo-registers from being allocated to them.
;; However, we do want to allow all patterns which can store to them to
;; include them in their constraints, so we always use '*f' in a destination
;; constraint except when 'f' is the only alternative.
;; Insn attributes which describe the i960.
;; Modscan is not used, since the compiler never emits any of these insns.
......@@ -949,7 +956,7 @@
}")
(define_insn ""
[(set (match_operand:DF 0 "general_operand" "=r,f,d,d,m,o")
[(set (match_operand:DF 0 "general_operand" "=r,*f,d,d,m,o")
(match_operand:DF 1 "fpmove_src_operand" "r,GH,F,m,d,G"))]
"current_function_args_size == 0
&& (register_operand (operands[0], DFmode)
......@@ -980,7 +987,7 @@
[(set_attr "type" "move,move,load,fpload,fpstore,fpstore")])
(define_insn ""
[(set (match_operand:DF 0 "general_operand" "=r,f,d,d,m")
[(set (match_operand:DF 0 "general_operand" "=r,*f,d,d,m")
(match_operand:DF 1 "fpmove_src_operand" "r,GH,F,m,d"))]
"current_function_args_size != 0
&& (register_operand (operands[0], DFmode)
......@@ -1017,7 +1024,7 @@
}")
(define_insn ""
[(set (match_operand:SF 0 "general_operand" "=r,f,d,d,m")
[(set (match_operand:SF 0 "general_operand" "=r,*f,d,d,m")
(match_operand:SF 1 "fpmove_src_operand" "r,GH,F,m,dG"))]
"current_function_args_size == 0
&& (register_operand (operands[0], SFmode)
......@@ -1047,7 +1054,7 @@
[(set_attr "type" "move,move,load,fpload,fpstore")])
(define_insn ""
[(set (match_operand:SF 0 "general_operand" "=r,f,d,d,m")
[(set (match_operand:SF 0 "general_operand" "=r,*f,d,d,m")
(match_operand:SF 1 "fpmove_src_operand" "r,GH,F,m,d"))]
"current_function_args_size != 0
&& (register_operand (operands[0], SFmode)
......@@ -1312,7 +1319,7 @@
;; Conversions between float and double.
(define_insn "extendsfdf2"
[(set (match_operand:DF 0 "register_operand" "=f,d")
[(set (match_operand:DF 0 "register_operand" "=*f,d")
(float_extend:DF (match_operand:SF 1 "fp_arith_operand" "dGH,fGH")))]
"TARGET_NUMERICS"
"@
......@@ -1338,7 +1345,7 @@
[(set_attr "type" "fpcvt")])
(define_insn "floatsisf2"
[(set (match_operand:SF 0 "register_operand" "=df")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(float:SF (match_operand:SI 1 "register_operand" "d")))]
"TARGET_NUMERICS"
"cvtir %1,%0"
......@@ -1697,7 +1704,7 @@
;; Floating point arithmetic instructions.
(define_insn "adddf3"
[(set (match_operand:DF 0 "register_operand" "=d")
[(set (match_operand:DF 0 "register_operand" "=d*f")
(plus:DF (match_operand:DF 1 "fp_arith_operand" "%rGH")
(match_operand:DF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1705,7 +1712,7 @@
[(set_attr "type" "fpadd")])
(define_insn "addsf3"
[(set (match_operand:SF 0 "register_operand" "=d")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(plus:SF (match_operand:SF 1 "fp_arith_operand" "%rGH")
(match_operand:SF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1714,7 +1721,7 @@
(define_insn "subdf3"
[(set (match_operand:DF 0 "register_operand" "=d")
[(set (match_operand:DF 0 "register_operand" "=d*f")
(minus:DF (match_operand:DF 1 "fp_arith_operand" "rGH")
(match_operand:DF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1722,7 +1729,7 @@
[(set_attr "type" "fpadd")])
(define_insn "subsf3"
[(set (match_operand:SF 0 "register_operand" "=d")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(minus:SF (match_operand:SF 1 "fp_arith_operand" "rGH")
(match_operand:SF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1731,7 +1738,7 @@
(define_insn "muldf3"
[(set (match_operand:DF 0 "register_operand" "=d")
[(set (match_operand:DF 0 "register_operand" "=d*f")
(mult:DF (match_operand:DF 1 "fp_arith_operand" "rGH")
(match_operand:DF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1739,7 +1746,7 @@
[(set_attr "type" "fpmul")])
(define_insn "mulsf3"
[(set (match_operand:SF 0 "register_operand" "=d")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(mult:SF (match_operand:SF 1 "fp_arith_operand" "rGH")
(match_operand:SF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1748,7 +1755,7 @@
(define_insn "divdf3"
[(set (match_operand:DF 0 "register_operand" "=d")
[(set (match_operand:DF 0 "register_operand" "=d*f")
(div:DF (match_operand:DF 1 "fp_arith_operand" "rGH")
(match_operand:DF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1756,7 +1763,7 @@
[(set_attr "type" "fpdiv")])
(define_insn "divsf3"
[(set (match_operand:SF 0 "register_operand" "=d")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(div:SF (match_operand:SF 1 "fp_arith_operand" "rGH")
(match_operand:SF 2 "fp_arith_operand" "rGH")))]
"TARGET_NUMERICS"
......@@ -1764,7 +1771,7 @@
[(set_attr "type" "fpdiv")])
(define_insn "negdf2"
[(set (match_operand:DF 0 "register_operand" "=d,f")
[(set (match_operand:DF 0 "register_operand" "=d,d*f")
(neg:DF (match_operand:DF 1 "register_operand" "d,r")))]
""
"*
......@@ -1780,7 +1787,7 @@
[(set_attr "type" "fpadd")])
(define_insn "negsf2"
[(set (match_operand:SF 0 "register_operand" "=d,f")
[(set (match_operand:SF 0 "register_operand" "=d,d*f")
(neg:SF (match_operand:SF 1 "register_operand" "d,r")))]
""
"@
......@@ -1793,7 +1800,7 @@
;;; less than 32.
(define_insn "absdf2"
[(set (match_operand:DF 0 "register_operand" "=df")
[(set (match_operand:DF 0 "register_operand" "=d*f")
(abs:DF (match_operand:DF 1 "register_operand" "df")))]
""
"*
......@@ -1819,7 +1826,7 @@
[(set_attr "type" "multi")])
(define_insn "abssf2"
[(set (match_operand:SF 0 "register_operand" "=df")
[(set (match_operand:SF 0 "register_operand" "=d*f")
(abs:SF (match_operand:SF 1 "register_operand" "df")))]
""
"*
......@@ -1861,7 +1868,7 @@
}")
(define_insn ""
[(set (match_operand:TF 0 "general_operand" "=r,f,d,d,m,o")
[(set (match_operand:TF 0 "general_operand" "=r,*f,d,d,m,o")
(match_operand:TF 1 "fpmove_src_operand" "r,GH,F,m,d,G"))]
"current_function_args_size == 0
&& (register_operand (operands[0], TFmode)
......@@ -1894,7 +1901,7 @@
[(set_attr "type" "move,move,load,fpload,fpstore,fpstore")])
(define_insn ""
[(set (match_operand:TF 0 "general_operand" "=r,f,d,d,m")
[(set (match_operand:TF 0 "general_operand" "=r,*f,d,d,m")
(match_operand:TF 1 "fpmove_src_operand" "r,GH,F,m,d"))]
"current_function_args_size != 0
&& (register_operand (operands[0], TFmode)
......@@ -1921,7 +1928,7 @@
[(set_attr "type" "move,move,load,fpload,fpstore")])
(define_insn "extendsftf2"
[(set (match_operand:TF 0 "register_operand" "=f,d")
[(set (match_operand:TF 0 "register_operand" "=*f,d")
(float_extend:TF
(match_operand:SF 1 "register_operand" "d,f")))]
"TARGET_NUMERICS"
......@@ -1931,7 +1938,7 @@
[(set_attr "type" "fpmove")])
(define_insn "extenddftf2"
[(set (match_operand:TF 0 "register_operand" "=f,d")
[(set (match_operand:TF 0 "register_operand" "=*f,d")
(float_extend:TF
(match_operand:DF 1 "register_operand" "d,f")))]
"TARGET_NUMERICS"
......
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