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jit-ir: Correct vx2i with partial overlap.

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This commit is contained in:
Unknown W. Brackets 2016-05-17 21:22:23 -07:00
parent b5b94f4a4d
commit b1c7f3dd3f
1 changed files with 24 additions and 5 deletions
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29
Core/MIPS/IR/IRCompVFPU.cpp
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@ -85,10 +85,28 @@ namespace MIPSComp {
return true;
}
static bool IsOverlapSafe(int dreg, int sn, u8 sregs[], int tn = 0, u8 tregs[] = NULL) {
static bool IsOverlapSafeAllowS(int dn, u8 dregs[], int sn, u8 sregs[], int tn = 0, u8 tregs[] = nullptr) {
for (int i = 0; i < dn; ++i) {
if (!IsOverlapSafeAllowS(dregs[i], i, sn, sregs, tn, tregs)) {
return false;
}
}
return true;
}
static bool IsOverlapSafe(int dreg, int sn, u8 sregs[], int tn = 0, u8 tregs[] = nullptr) {
return IsOverlapSafeAllowS(dreg, -1, sn, sregs, tn, tregs);
}
static bool IsOverlapSafe(int dn, u8 dregs[], int sn, u8 sregs[], int tn = 0, u8 tregs[] = nullptr) {
for (int i = 0; i < dn; ++i) {
if (!IsOverlapSafe(dregs[i], sn, sregs, tn, tregs)) {
return false;
}
}
return true;
}
void IRFrontend::Comp_VPFX(MIPSOpcode op) {
CONDITIONAL_DISABLE;
int data = op & 0xFFFFF;
@ -1495,15 +1513,16 @@ namespace MIPSComp {
// Remap dest regs. PFX_T is unused.
if (outsize == V_Pair) {
bool consecutive = IsConsecutive2(dregs);
for (int i = 0; i < 2; i++) {
if (!consecutive || !IsOverlapSafe(dregs[i], nIn, srcregs)) {
// We must have them consecutive, so all temps, or none.
if (!consecutive || !IsOverlapSafe(nOut, dregs, nIn, srcregs)) {
for (int i = 0; i < nOut; i++) {
tempregs[i] = IRVTEMP_PFX_T + i;
}
}
} else if (outsize == V_Quad) {
bool consecutive = IsConsecutive4(dregs);
for (int i = 0; i < 4; i++) {
if (!consecutive || !IsOverlapSafe(dregs[i], nIn, srcregs)) {
if (!consecutive || !IsOverlapSafe(nOut, dregs, nIn, srcregs)) {
for (int i = 0; i < nOut; i++) {
tempregs[i] = IRVTEMP_PFX_T + i;
}
}