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rs6000: Remove "O" alternative from lshrsi3

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Nothing will ever generate RTL matching this alternative.  Maybe long
ago this was needed, but not anymore.

From-SVN: r211875
This commit is contained in:
Segher Boessenkool 2014-06-22 19:09:24 +02:00 • committed by Segher Boessenkool
parent 82db17cbd4
commit 1a2443af3a
2 changed files with 24 additions and 24 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-06-22 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.md (lshrsi3, and its two dot patterns):
Remove "O" alternative.
2014-06-22 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (mips_move_to_gpr_cost): Remove mode argument.

43
gcc/config/rs6000/rs6000.md
View file

@ -4543,16 +4543,15 @@
"")
(define_insn "lshrsi3"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r")
(lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "O,r,i")))]
[(set (match_operand:SI 0 "gpc_reg_operand" "=r,r")
(lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r")
(match_operand:SI 2 "reg_or_cint_operand" "r,i")))]
""
"@
mr %0,%1
srw %0,%1,%2
srwi %0,%1,%h2"
[(set_attr "type" "integer,shift,shift")
(set_attr "var_shift" "no,yes,no")])
[(set_attr "type" "shift")
(set_attr "var_shift" "yes,no")])
(define_insn "*lshrsi3_64"
[(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
@ -4567,23 +4566,21 @@
(set_attr "var_shift" "yes,no")])
(define_insn ""
[(set (match_operand:CC 0 "cc_reg_operand" "=x,x,x,?y,?y,?y")
(compare:CC (lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r,r,r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "O,r,i,O,r,i"))
[(set (match_operand:CC 0 "cc_reg_operand" "=x,x,?y,?y")
(compare:CC (lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "r,i,r,i"))
(const_int 0)))
(clobber (match_scratch:SI 3 "=X,r,r,X,r,r"))]
(clobber (match_scratch:SI 3 "=r,r,r,r"))]
"TARGET_32BIT"
"@
mr. %1,%1
srw. %3,%1,%2
srwi. %3,%1,%h2
#
#
#"
[(set_attr "type" "logical,shift,shift,shift,shift,shift")
(set_attr "var_shift" "no,yes,no,no,yes,no")
[(set_attr "type" "shift")
(set_attr "var_shift" "yes,no,yes,no")
(set_attr "dot" "yes")
(set_attr "length" "4,4,4,8,8,8")])
(set_attr "length" "4,4,8,8")])
(define_split
[(set (match_operand:CC 0 "cc_reg_not_cr0_operand" "")
@ -4600,24 +4597,22 @@
"")
(define_insn ""
[(set (match_operand:CC 3 "cc_reg_operand" "=x,x,x,?y,?y,?y")
(compare:CC (lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r,r,r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "O,r,i,O,r,i"))
[(set (match_operand:CC 3 "cc_reg_operand" "=x,x,?y,?y")
(compare:CC (lshiftrt:SI (match_operand:SI 1 "gpc_reg_operand" "r,r,r,r")
(match_operand:SI 2 "reg_or_cint_operand" "r,i,r,i"))
(const_int 0)))
(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r,r,r")
(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r")
(lshiftrt:SI (match_dup 1) (match_dup 2)))]
"TARGET_32BIT"
"@
mr. %0,%1
srw. %0,%1,%2
srwi. %0,%1,%h2
#
#
#"
[(set_attr "type" "logical,shift,shift,shift,shift,shift")
(set_attr "var_shift" "no,yes,no,no,yes,no")
[(set_attr "type" "shift")
(set_attr "var_shift" "yes,no,yes,no")
(set_attr "dot" "yes")
(set_attr "length" "4,4,4,8,8,8")])
(set_attr "length" "4,4,8,8")])
(define_split
[(set (match_operand:CC 3 "cc_reg_not_cr0_operand" "")