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ARM64-SVE: Enable ConditionalSelect_FalseOp scenario for first-faulting tests #106349

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Aug 14, 2024
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ARM64-SVE: Enable ConditionalSelect_FalseOp scenario for first-faulting tests #106349

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12 changes: 1 addition & 11 deletions src/tests/JIT/HardwareIntrinsics/Arm/Shared/SveGatherVectorByteOffsetFirstFaulting.template
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Original file line number Diff line number Diff line change
Expand Up @@ -60,17 +60,7 @@ namespace JIT.HardwareIntrinsics.Arm
test.RunStructFldScenario();

// Validates using inside ConditionalSelect with value falseValue
// Currently, using this operation in ConditionalSelect() gives incorrect result
// when falseReg == targetReg because this instruction uses Pg/Z to update the targetReg
// instead of Pg/M to merge it. As such, the value of falseReg is lost. Ideally, such
// instructions should be marked similar to RMW (a different flag name) to make sure that
// we do not assign falseReg/targetReg same. Then, we would do something like this:
//
// ldnf1sh target, pg/z, [x0]
// sel mask, target, target, falseReg
//
// This needs more careful thinking, so disabling it for now.
// test.ConditionalSelect_FalseOp();
test.ConditionalSelect_FalseOp();

// Validates using inside ConditionalSelect with zero falseValue
test.ConditionalSelect_ZeroOp();
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12 changes: 1 addition & 11 deletions src/tests/JIT/HardwareIntrinsics/Arm/Shared/SveGatherVectorFirstFaultingIndices.template
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Original file line number Diff line number Diff line change
Expand Up @@ -60,17 +60,7 @@ namespace JIT.HardwareIntrinsics.Arm
test.RunStructFldScenario();

// Validates using inside ConditionalSelect with value falseValue
// Currently, using this operation in ConditionalSelect() gives incorrect result
// when falseReg == targetReg because this instruction uses Pg/Z to update the targetReg
// instead of Pg/M to merge it. As such, the value of falseReg is lost. Ideally, such
// instructions should be marked similar to RMW (a different flag name) to make sure that
// we do not assign falseReg/targetReg same. Then, we would do something like this:
//
// ldnf1sh target, pg/z, [x0]
// sel mask, target, target, falseReg
//
// This needs more careful thinking, so disabling it for now.
// test.ConditionalSelect_FalseOp();
test.ConditionalSelect_FalseOp();

// Validates using inside ConditionalSelect with zero falseValue
test.ConditionalSelect_ZeroOp();
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12 changes: 1 addition & 11 deletions src/tests/JIT/HardwareIntrinsics/Arm/Shared/SveGatherVectorFirstFaultingVectorBases.template
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Original file line number Diff line number Diff line change
Expand Up @@ -60,17 +60,7 @@ namespace JIT.HardwareIntrinsics.Arm
test.RunStructFldScenario();

// Validates using inside ConditionalSelect with value falseValue
// Currently, using this operation in ConditionalSelect() gives incorrect result
// when falseReg == targetReg because this instruction uses Pg/Z to update the targetReg
// instead of Pg/M to merge it. As such, the value of falseReg is lost. Ideally, such
// instructions should be marked similar to RMW (a different flag name) to make sure that
// we do not assign falseReg/targetReg same. Then, we would do something like this:
//
// ldnf1sh target, pg/z, [x0]
// sel mask, target, target, falseReg
//
// This needs more careful thinking, so disabling it for now.
// test.ConditionalSelect_FalseOp();
test.ConditionalSelect_FalseOp();

// Validates using inside ConditionalSelect with zero falseValue
test.ConditionalSelect_ZeroOp();
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