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* config/rs6000/rs6000.md (movti_string): Use string instructions. 

From-SVN: r58781
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David Edelsohn 2002-11-04 03:04:10 +00:00 committed by David Edelsohn
parent a5db0683cb
commit cd1d3445e3
2 changed files with 19 additions and 8 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2002-11-03 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.md (movti_string): Use string instructions.
2002-11-03 Roger Sayle <roger@eyesopen.com>
PR c/7128

23
gcc/config/rs6000/rs6000.md
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@ -9248,9 +9248,9 @@
(set_attr "length" "4,16,16,4,16")])
(define_insn "*movti_string"
[(set (match_operand:TI 0 "reg_or_mem_operand" "=m,????r,????r")
(match_operand:TI 1 "reg_or_mem_operand" "r,r,m"))
(clobber (match_scratch:SI 2 "=X,X,X"))]
[(set (match_operand:TI 0 "reg_or_mem_operand" "=Q,m,????r,????r,????r")
(match_operand:TI 1 "reg_or_mem_operand" "r,r,r,Q,m"))
(clobber (match_scratch:SI 2 "=X,X,X,X,X"))]
"TARGET_STRING && ! TARGET_POWER && ! TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], TImode) || gpc_reg_operand (operands[1], TImode))"
"*
@ -9261,9 +9261,10 @@
abort ();
case 0:
return \"{st%U0|stw%U0} %1,%0\;{st|stw} %L1,%L0\;{st|stw} %Y1,%Y0\;{st|stw} %Z1,%Z0\";
return \"{stsi|stswi} %1,%P0,16\";
case 1:
return \"{st%U0|stw%U0} %1,%0\;{st|stw} %L1,%L0\;{st|stw} %Y1,%Y0\;{st|stw} %Z1,%Z0\";
case 2:
/* Normally copy registers with lowest numbered register copied first.
But copy in the other order if the first register of the output
is the second, third, or fourth register in the input. */
@ -9272,7 +9273,13 @@
return \"mr %Z0,%Z1\;mr %Y0,%Y1\;mr %L0,%L1\;mr %0,%1\";
else
return \"mr %0,%1\;mr %L0,%L1\;mr %Y0,%Y1\;mr %Z0,%Z1\";
case 2:
case 3:
/* If the address is not used in the output, we can use lsi. Otherwise,
fall through to generating four loads. */
if (! reg_overlap_mentioned_p (operands[0], operands[1]))
return \"{lsi|lswi} %0,%P1,16\";
/* ... fall through ... */
case 4:
/* If the address register is the same as the register for the lowest-
addressed word, load it last. Similarly for the next two words.
Otherwise load lowest address to highest. */
@ -9289,8 +9296,8 @@
return \"{l%U1|lwz%U1} %0,%1\;{l|lwz} %L0,%L1\;{l|lwz} %Y0,%Y1\;{l|lwz} %Z0,%Z1\";
}
}"
[(set_attr "type" "store,*,load")
(set_attr "length" "16,16,16")])
[(set_attr "type" "store,store,*,load,load")
(set_attr "length" "4,16,16,4,16")])
(define_insn "*movti_ppc64"
[(set (match_operand:TI 0 "nonimmediate_operand" "=r,r,m")