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(addsi3,ashlsi3): Handle the case where the stack pointer appears as an

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index reg.

From-SVN: r2140
This commit is contained in:
James Van Artsdalen 1992-09-17 05:20:26 +00:00
parent 3292923dd1
commit 442426450e
1 changed files with 20 additions and 2 deletions
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22
gcc/config/i386/i386.md
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@ -1392,8 +1392,20 @@
if (! TARGET_486 || ! REG_P (operands[2]))
{
CC_STATUS_INIT;
operands[1] = SET_SRC (PATTERN (insn));
return AS2 (lea%L0,%a1,%0);
if (operands[2] == stack_pointer_rtx)
{
rtx temp;
temp = operands[1];
operands[1] = operands[2];
operands[2] = temp;
}
if (operands[2] != stack_pointer_rtx)
{
operands[1] = SET_SRC (PATTERN (insn));
return AS2 (lea%L0,%a1,%0);
}
}
output_asm_insn (AS2 (mov%L0,%1,%0), operands);
@ -2391,6 +2403,12 @@
else
{
CC_STATUS_INIT;
if (operands[1] == stack_pointer_rtx)
{
output_asm_insn (AS2 (mov%L0,%1,%0), operands);
operands[1] = operands[0];
}
operands[1] = gen_rtx (MULT, SImode, operands[1],
GEN_INT (1 << INTVAL (operands[2])));
return AS2 (lea%L0,%a1,%0);