re PR rtl-optimization/10588 ([PPC] i==0||j==0 should use cntlzw and srawi)
* config/rs6000/rs6000.md (call_indirect_nonlocal_aix32): Prefer CTR to LR. (call_indirect_nonlocal_aix64): Same. (call_value_indirect_nonlocal_aix32): Same. (call_value_indirect_nonlocal_aix64): Same. PR target/10588 (eq): Use CLZ splitter for compare with zero. From-SVN: r100759
This commit is contained in:
David Edelsohn
David Edelsohn
parent
625b02b215
commit
70ae01917f
@ -1,3 +1,14 @@
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2005-06-08 David Edelsohn <edelsohn@gnu.org>
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* config/rs6000/rs6000.md (call_indirect_nonlocal_aix32): Prefer
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CTR to LR.
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(call_indirect_nonlocal_aix64): Same.
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(call_value_indirect_nonlocal_aix32): Same.
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(call_value_indirect_nonlocal_aix64): Same.
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PR target/10588
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(eq): Use CLZ splitter for compare with zero.
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2005-06-08 Bernd Schmidt <bernd.schmidt@analog.com>
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* config/bfin/bfin.c (bfin_return_in_memory): Simplify; return
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@ -10247,13 +10247,13 @@
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;; and < 0 if they were not.
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(define_insn "*call_indirect_nonlocal_aix32"
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[(call (mem:SI (match_operand:SI 0 "register_operand" "cl"))
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(match_operand 1 "" "g"))
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[(call (mem:SI (match_operand:SI 0 "register_operand" "c,*l"))
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(match_operand 1 "" "g,g"))
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(use (reg:SI 2))
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(use (reg:SI 11))
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(set (reg:SI 2)
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(mem:SI (plus:SI (reg:SI 1) (const_int 20))))
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(clobber (match_scratch:SI 2 "=l"))]
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(clobber (match_scratch:SI 2 "=l,l"))]
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"TARGET_32BIT && DEFAULT_ABI == ABI_AIX"
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"b%T0l\;{l|lwz} 2,20(1)"
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[(set_attr "type" "jmpreg")
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@ -10272,13 +10272,13 @@
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(set_attr "length" "8")])
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(define_insn "*call_indirect_nonlocal_aix64"
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[(call (mem:SI (match_operand:DI 0 "register_operand" "cl"))
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(match_operand 1 "" "g"))
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[(call (mem:SI (match_operand:DI 0 "register_operand" "c,*l"))
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(match_operand 1 "" "g,g"))
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(use (reg:DI 2))
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(use (reg:DI 11))
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(set (reg:DI 2)
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(mem:DI (plus:DI (reg:DI 1) (const_int 40))))
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(clobber (match_scratch:SI 2 "=l"))]
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(clobber (match_scratch:SI 2 "=l,l"))]
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"TARGET_64BIT && DEFAULT_ABI == ABI_AIX"
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"b%T0l\;ld 2,40(1)"
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[(set_attr "type" "jmpreg")
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@ -10298,13 +10298,13 @@
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(define_insn "*call_value_indirect_nonlocal_aix32"
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[(set (match_operand 0 "" "")
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(call (mem:SI (match_operand:SI 1 "register_operand" "cl"))
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(match_operand 2 "" "g")))
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(call (mem:SI (match_operand:SI 1 "register_operand" "c,*l"))
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(match_operand 2 "" "g,g")))
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(use (reg:SI 2))
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(use (reg:SI 11))
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(set (reg:SI 2)
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(mem:SI (plus:SI (reg:SI 1) (const_int 20))))
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(clobber (match_scratch:SI 3 "=l"))]
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(clobber (match_scratch:SI 3 "=l,l"))]
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"TARGET_32BIT && DEFAULT_ABI == ABI_AIX"
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"b%T1l\;{l|lwz} 2,20(1)"
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[(set_attr "type" "jmpreg")
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@ -10325,13 +10325,13 @@
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(define_insn "*call_value_indirect_nonlocal_aix64"
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[(set (match_operand 0 "" "")
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(call (mem:SI (match_operand:DI 1 "register_operand" "cl"))
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(match_operand 2 "" "g")))
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(call (mem:SI (match_operand:DI 1 "register_operand" "c,*l"))
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(match_operand 2 "" "g,g")))
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(use (reg:DI 2))
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(use (reg:DI 11))
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(set (reg:DI 2)
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(mem:DI (plus:DI (reg:DI 1) (const_int 40))))
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(clobber (match_scratch:SI 3 "=l"))]
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(clobber (match_scratch:SI 3 "=l,l"))]
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"TARGET_64BIT && DEFAULT_ABI == ABI_AIX"
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"b%T1l\;ld 2,40(1)"
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[(set_attr "type" "jmpreg")
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@ -11472,11 +11472,11 @@
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[(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r,r")
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(eq:SI (match_operand:SI 1 "gpc_reg_operand" "%r,r,r,r,r")
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(match_operand:SI 2 "reg_or_cint_operand" "r,O,K,L,I")))
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(clobber (match_scratch:SI 3 "=r,&r,r,r,r"))]
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(clobber (match_scratch:SI 3 "=r,X,r,r,r"))]
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"TARGET_32BIT"
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"@
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xor %0,%1,%2\;{sfi|subfic} %3,%0,0\;{ae|adde} %0,%3,%0
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{sfi|subfic} %3,%1,0\;{ae|adde} %0,%3,%1
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#
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{xoril|xori} %0,%1,%b2\;{sfi|subfic} %3,%0,0\;{ae|adde} %0,%3,%0
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{xoriu|xoris} %0,%1,%u2\;{sfi|subfic} %3,%0,0\;{ae|adde} %0,%3,%0
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{sfi|subfic} %0,%1,%2\;{sfi|subfic} %3,%0,0\;{ae|adde} %0,%3,%0"
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@ -11487,17 +11487,31 @@
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[(set (match_operand:DI 0 "gpc_reg_operand" "=r,r,r,r,r")
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(eq:DI (match_operand:DI 1 "gpc_reg_operand" "%r,r,r,r,r")
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(match_operand:DI 2 "reg_or_cint_operand" "r,O,K,J,I")))
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(clobber (match_scratch:DI 3 "=r,&r,r,r,r"))]
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(clobber (match_scratch:DI 3 "=r,X,r,r,r"))]
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"TARGET_64BIT"
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"@
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xor %0,%1,%2\;subfic %3,%0,0\;adde %0,%3,%0
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subfic %3,%1,0\;adde %0,%3,%1
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#
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xori %0,%1,%b2\;subfic %3,%0,0\;adde %0,%3,%0
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xoris %0,%1,%u2\;subfic %3,%0,0\;adde %0,%3,%0
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subfic %0,%1,%2\;subfic %3,%0,0\;adde %0,%3,%0"
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[(set_attr "type" "three,two,three,three,three")
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(set_attr "length" "12,8,12,12,12")])
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(define_split
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[(set (match_operand:GPR 0 "gpc_reg_operand" "")
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(eq:GPR (match_operand:GPR 1 "gpc_reg_operand" "")
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(match_operand:GPR 2 "zero_constant" "")))
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(clobber (match_scratch:GPR 3 ""))]
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""
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[(set (match_dup 0)
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(clz:GPR (match_dup 1)))
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(set (match_dup 0)
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(lshiftrt:GPR (match_dup 0) (match_dup 4)))]
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{
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operands[4] = GEN_INT (exact_log2 (GET_MODE_BITSIZE (<MODE>mode)));
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})
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(define_insn ""
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[(set (match_operand:CC 4 "cc_reg_operand" "=x,x,x,x,x,?y,?y,?y,?y,?y")
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(compare:CC
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@ -11506,11 +11520,11 @@
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(const_int 0)))
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(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r,r,r,r,r,r,r,r")
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(eq:SI (match_dup 1) (match_dup 2)))
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(clobber (match_scratch:SI 3 "=r,&r,r,r,r,r,&r,r,r,r"))]
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(clobber (match_scratch:SI 3 "=r,X,r,r,r,r,X,r,r,r"))]
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"TARGET_32BIT"
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"@
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xor %0,%1,%2\;{sfi|subfic} %3,%0,0\;{ae.|adde.} %0,%3,%0
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{sfi|subfic} %3,%1,0\;{ae.|adde.} %0,%3,%1
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#
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{xoril|xori} %0,%1,%b2\;{sfi|subfic} %3,%0,0\;{ae.|adde.} %0,%3,%0
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{xoriu|xoris} %0,%1,%u2\;{sfi|subfic} %3,%0,0\;{ae.|adde.} %0,%3,%0
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{sfi|subfic} %0,%1,%2\;{sfi|subfic} %3,%0,0\;{ae.|adde.} %0,%3,%0
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@ -11548,11 +11562,11 @@
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(const_int 0)))
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(set (match_operand:DI 0 "gpc_reg_operand" "=r,r,r,r,r,r,r,r,r,r")
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(eq:DI (match_dup 1) (match_dup 2)))
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(clobber (match_scratch:DI 3 "=r,&r,r,r,r,r,&r,r,r,r"))]
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(clobber (match_scratch:DI 3 "=r,X,r,r,r,r,X,r,r,r"))]
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"TARGET_64BIT"
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"@
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xor %0,%1,%2\;subfic %3,%0,0\;adde. %0,%3,%0
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subfic %3,%1,0\;adde. %0,%3,%1
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#
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xori %0,%1,%b2\;subfic %3,%0,0\;adde. %0,%3,%0
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xoris %0,%1,%u2\;subfic %3,%0,0\;adde. %0,%3,%0
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subfic %0,%1,%2\;subfic %3,%0,0\;adde. %0,%3,%0
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@ -11582,6 +11596,27 @@
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(const_int 0)))]
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"")
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(define_split
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[(set (match_operand:CC 4 "cc_reg_operand" "")
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(compare:CC
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(eq:GPR (match_operand:GPR 1 "gpc_reg_operand" "")
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(match_operand:GPR 2 "zero_constant" ""))
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(const_int 0)))
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(set (match_operand:GPR 0 "gpc_reg_operand" "")
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(eq:GPR (match_dup 1) (match_dup 2)))
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(clobber (match_scratch:GPR 3 ""))]
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""
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[(set (match_dup 0)
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(clz:GPR (match_dup 1)))
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(parallel [(set (match_dup 4)
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(compare:CC (lshiftrt:GPR (match_dup 0) (match_dup 5))
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(const_int 0)))
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(set (match_dup 0)
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(lshiftrt:GPR (match_dup 0) (match_dup 5)))])]
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{
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operands[5] = GEN_INT (exact_log2 (GET_MODE_BITSIZE (<MODE>mode)));
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})
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;; We have insns of the form shown by the first define_insn below. If
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;; there is something inside the comparison operation, we must split it.
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(define_split
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