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FFI/x86: Fix register allocation for 64 bit comparisons.

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Mike Pall 2013-04-04 17:05:00 +02:00
parent 172bd95365
commit 6ba65cefb0
1 changed files with 2 additions and 6 deletions
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8
src/lj_asm_x86.h
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@ -2211,6 +2211,7 @@ static void asm_comp_int64(ASMState *as, IRIns *ir)
lefthi = asm_fuseload(as, ir->op1, allow); lefthi = asm_fuseload(as, ir->op1, allow);
} else { } else {
lefthi = ra_alloc1(as, ir->op1, allow); lefthi = ra_alloc1(as, ir->op1, allow);
rset_clear(allow, lefthi);
righthi = asm_fuseload(as, ir->op2, allow); righthi = asm_fuseload(as, ir->op2, allow);
if (righthi == RID_MRM) { if (righthi == RID_MRM) {
if (as->mrm.base != RID_NONE) rset_clear(allow, as->mrm.base); if (as->mrm.base != RID_NONE) rset_clear(allow, as->mrm.base);
@ -2226,13 +2227,8 @@ static void asm_comp_int64(ASMState *as, IRIns *ir)
leftlo = asm_fuseload(as, (ir-1)->op1, allow); leftlo = asm_fuseload(as, (ir-1)->op1, allow);
} else { } else {
leftlo = ra_alloc1(as, (ir-1)->op1, allow); leftlo = ra_alloc1(as, (ir-1)->op1, allow);
rset_clear(allow, leftlo);
rightlo = asm_fuseload(as, (ir-1)->op2, allow); rightlo = asm_fuseload(as, (ir-1)->op2, allow);
if (rightlo == RID_MRM) {
if (as->mrm.base != RID_NONE) rset_clear(allow, as->mrm.base);
if (as->mrm.idx != RID_NONE) rset_clear(allow, as->mrm.idx);
} else {
rset_clear(allow, rightlo);
}
} }
/* All register allocations must be performed _before_ this point. */ /* All register allocations must be performed _before_ this point. */