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ARM Jit: Avoid materializing some unnecessary immediates in loads/stores

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This commit is contained in:
Henrik Rydgård 2014-03-03 14:33:22 +01:00
parent aea272a3ce
commit b2260149ae
1 changed files with 4 additions and 2 deletions
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6
Core/MIPS/ARM/ArmCompLoadStore.cpp
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@ -328,12 +328,14 @@ namespace MIPSComp
// We can compute the full address at compile time. Kickass.
u32 addr = iaddr & 0x3FFFFFFF;
// Still flush it, since often these will be in a row.
load ? gpr.MapDirtyIn(rt, rs) : gpr.MapInIn(rt, rs);
if (addr == iaddr && offset == 0) {
// It was already safe. Let's shove it into a reg and use it directly.
load ? gpr.MapDirtyIn(rt, rs) : gpr.MapInIn(rt, rs);
addrReg = gpr.R(rs);
} else {
// In this case, only map rt. rs+offset will be in R0.
gpr.MapReg(rt, load ? (MAP_NOINIT | MAP_DIRTY) : 0);
gpr.SetRegImm(R0, addr);
addrReg = R0;
}