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(adddi3, subdi3): Need scratch reg whenever operand 0 in mem and operands 1 not '0'.

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(adddi3, subdi3): Need scratch reg whenever operand 0 in mem and operands 1
not '0'.
(subdi3): Don't treat two non-equal MEMs as non-aliasing.

From-SVN: r9342
This commit is contained in:
Richard Kenner 1995-04-09 09:22:42 -04:00
parent 79ff2c6c8b
commit dee6d39efa
1 changed files with 3 additions and 3 deletions
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6
gcc/config/i386/i386.md
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@ -2382,7 +2382,7 @@
[(set (match_operand:DI 0 "general_operand" "=&r,ro,o,&r,ro,o,&r,o,o,o") [(set (match_operand:DI 0 "general_operand" "=&r,ro,o,&r,ro,o,&r,o,o,o")
(plus:DI (match_operand:DI 1 "general_operand" "%0,0,0,o,riF,o,or,riF,riF,o") (plus:DI (match_operand:DI 1 "general_operand" "%0,0,0,o,riF,o,or,riF,riF,o")
(match_operand:DI 2 "general_operand" "o,riF,o,0,0,0,oriF,riF,o,o"))) (match_operand:DI 2 "general_operand" "o,riF,o,0,0,0,oriF,riF,o,o")))
(clobber (match_scratch:SI 3 "=X,X,&r,X,X,&r,X,X,&r,&r"))] (clobber (match_scratch:SI 3 "=X,X,&r,X,&r,&r,X,&r,&r,&r"))]
"" ""
"* "*
{ {
@ -2633,7 +2633,7 @@
[(set (match_operand:DI 0 "general_operand" "=&r,ro,&r,o,o") [(set (match_operand:DI 0 "general_operand" "=&r,ro,&r,o,o")
(minus:DI (match_operand:DI 1 "general_operand" "0,0,roiF,riF,o") (minus:DI (match_operand:DI 1 "general_operand" "0,0,roiF,riF,o")
(match_operand:DI 2 "general_operand" "o,riF,roiF,riF,o"))) (match_operand:DI 2 "general_operand" "o,riF,roiF,riF,o")))
(clobber (match_scratch:SI 3 "=X,X,X,X,&r"))] (clobber (match_scratch:SI 3 "=X,X,X,&r,&r"))]
"" ""
"* "*
{ {
@ -2650,7 +2650,7 @@
xops[2] = high[1]; xops[2] = high[1];
xops[3] = low[1]; xops[3] = low[1];
if (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM) if (GET_CODE (operands[0]) != MEM)
{ {
output_asm_insn (AS2 (mov%L1,%3,%1), xops); output_asm_insn (AS2 (mov%L1,%3,%1), xops);
output_asm_insn (AS2 (mov%L0,%2,%0), xops); output_asm_insn (AS2 (mov%L0,%2,%0), xops);