MatCat.OpenSource/8sa1-gcc
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Do cld before each string move/compare.

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From-SVN: r2125
This commit is contained in:
Michael Meissner 1992-09-15 18:44:07 +00:00
parent 7436f435ab
commit e837539976
1 changed files with 4 additions and 0 deletions
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4
gcc/config/i386/i386.md
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@ -3912,6 +3912,7 @@
{
rtx xops[2];
output_asm_insn (\"cld\", operands);
if (GET_CODE (operands[2]) == CONST_INT)
{
if (INTVAL (operands[2]) & ~0x03)
@ -3989,6 +3990,7 @@
label = gen_label_rtx ();
output_asm_insn (\"cld\", operands);
output_asm_insn (AS2 (xor%B0,%0,%0), operands);
output_asm_insn (\"repz\;cmps%B2\", operands);
output_asm_insn (\"je %l0\", &label);
@ -4022,6 +4024,7 @@
xops[0] = gen_rtx (REG, QImode, 0);
xops[1] = CONST0_RTX (QImode);
output_asm_insn (\"cld\", operands);
output_asm_insn (AS2 (test%B0,%1,%0), xops);
return \"repz\;cmps%B2\";
}")
@ -4183,6 +4186,7 @@
xops[0] = operands[0];
xops[1] = constm1_rtx;
output_asm_insn (\"cld\", operands);
output_asm_insn (AS2 (mov%L0,%1,%0), xops);
return \"repnz\;scas%B2\";
}")