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aarch64: implements lifting (intrinsics) for LDXP/STXP #6360

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aarch64: implements lifting (intrinsics) for LDXP/STXP #6360

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4 changes: 4 additions & 0 deletions arch/arm64/arch_arm64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1004,6 +1004,8 @@ class Arm64Architecture : public Architecture
return "__ldxrb";
case ARM64_INTRIN_LDXRH:
return "__ldxrh";
case ARM64_INTRIN_LDXP:
return "__ldxp";
case ARM64_INTRIN_LDAXR:
return "__ldaxr";
case ARM64_INTRIN_LDAXRB:
Expand All @@ -1016,6 +1018,8 @@ class Arm64Architecture : public Architecture
return "__stxrb";
case ARM64_INTRIN_STXRH:
return "__stxrh";
case ARM64_INTRIN_STXP:
return "__stxp";
case ARM64_INTRIN_STLXR:
return "__stlxr";
case ARM64_INTRIN_STLXRB:
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6 changes: 6 additions & 0 deletions arch/arm64/il.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2016,6 +2016,9 @@ bool GetLowLevelILForInstruction(
case ARM64_LDXRH:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)) }, ARM64_INTRIN_LDXRH, { ILREG_O(operand2) }));
// We don't have a way to specify intrinsic register size, so we explicitly embed the size in the intrinsic name.
case ARM64_LDXP:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)), RegisterOrFlag::Register(REG_O(operand2)) }, ARM64_INTRIN_LDXP, { ILREG_O(operand3) }));
break;
case ARM64_LDAXR:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)) }, ARM64_INTRIN_LDAXR, { ILREG_O(operand2) }));
break;
Expand All @@ -2034,6 +2037,9 @@ bool GetLowLevelILForInstruction(
case ARM64_STXRH:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)) }, ARM64_INTRIN_STXRH, { ILREG_O(operand2), ILREG_O(operand3) }));
break;
case ARM64_STXP:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)) }, ARM64_INTRIN_STXP, { ILREG_O(operand2), ILREG_O(operand3), ILREG_O(operand4) }));
break;
case ARM64_STLXR:
il.AddInstruction(il.Intrinsic({ RegisterOrFlag::Register(REG_O(operand1)) }, ARM64_INTRIN_STLXR, { ILREG_O(operand2), ILREG_O(operand3) }));
break;
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2 changes: 2 additions & 0 deletions arch/arm64/il.h
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Original file line number Diff line number Diff line change
Expand Up @@ -80,12 +80,14 @@ enum Arm64Intrinsic : uint32_t
ARM64_INTRIN_LDXR,
ARM64_INTRIN_LDXRB,
ARM64_INTRIN_LDXRH,
ARM64_INTRIN_LDXP,
ARM64_INTRIN_LDAXR,
ARM64_INTRIN_LDAXRB,
ARM64_INTRIN_LDAXRH,
ARM64_INTRIN_STXR,
ARM64_INTRIN_STXRB,
ARM64_INTRIN_STXRH,
ARM64_INTRIN_STXP,
ARM64_INTRIN_STLXR,
ARM64_INTRIN_STLXRB,
ARM64_INTRIN_STLXRH,
Expand Down