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Perform ldr to ldp peephole optimization #84399

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Merged
merged 5 commits into from
Apr 8, 2023
Merged

Perform ldr to ldp peephole optimization #84399

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d123f2e
Perform ldr to ldp peephole optimization
kunalspathak Apr 6, 2023
a351369
Merge remote-tracking branch 'origin/main' into ldp
kunalspathak Apr 6, 2023
ecf1527
jit format
kunalspathak Apr 6, 2023
7c5541b
handle non-gc str cases
kunalspathak Apr 7, 2023
d2fc334
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kunalspathak Apr 7, 2023
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2 changes: 1 addition & 1 deletion src/coreclr/jit/emitarm64.h
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Expand Up @@ -162,7 +162,7 @@ inline bool OptimizeLdrStr(instruction ins,

// If the previous instruction was a matching load/store, then try to replace it instead of emitting.
// Don't do this if either instruction had a local variable.
if ((emitLastIns->idIns() == ins) && !localVar && !emitLastIns->idIsLclVar() &&
if ((emitLastIns->idIns() == ins) && ((ins == INS_ldr) || (!localVar && !emitLastIns->idIsLclVar())) &&
ReplaceLdrStrWithPairInstr(ins, reg1Attr, reg1, reg2, imm, size, fmt))
{
return true;
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