Implement SVE2 ShiftLeftLogical Intrinsics #116380
Open
+424
−88
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…gned, ShiftLeftLogicalWideningEven, ShiftLeftLogicalWideningOdd
dotnet-policy-service
bot
added
the
community-contribution
|
Tagging subscribers to this area: @dotnet/area-system-runtime-intrinsics |
kunalspathak
reviewed
Jun 7, 2025
| @@ -320,6 +320,10 @@ HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRounded, | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRoundedSaturate, -1, -1, {INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticSaturate, -1, -1, {INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftAndInsert, -1, 3, {INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalSaturate, -1, -1, {INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_BaseTypeFromFirstArg|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalSaturateUnsigned, -1, -1, {INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics) | |||
There was a problem hiding this comment.
sqshlu takes signed elements, so these instructions should be on TYP_BYTE, TYP_SHORT, etc. right?
There was a problem hiding this comment.
I was thinking that these columns should match the return type of the intrinsic rather than the input types, when they don't match in type. And HW_Flag_BaseTypeFromFirstArg is used when you need to disambiguate between intrinsics with the same return type but different argument types. Is this the right approach?
I think ShiftLeftLogicalSaturate doesn't need HW_Flag_BaseTypeFromFirstArg and I've left this in by mistake. It just works by chance because the return type is the same as the type of the first argument.
kunalspathak
reviewed
Jun 7, 2025
| @@ -320,6 +320,10 @@ HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRounded, | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRoundedSaturate, -1, -1, {INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticSaturate, -1, -1, {INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftAndInsert, -1, 3, {INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalSaturate, -1, -1, {INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_BaseTypeFromFirstArg|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics) | |||
kunalspathak
reviewed
Jun 7, 2025
| @@ -320,6 +320,10 @@ HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRounded, | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticRoundedSaturate, -1, -1, {INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_sve_sqrshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftArithmeticSaturate, -1, -1, {INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_sve_sqshl, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftAndInsert, -1, 3, {INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_sve_sli, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalSaturate, -1, -1, {INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_sve_uqshl, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_BaseTypeFromFirstArg|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalSaturateUnsigned, -1, -1, {INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_sve_sqshlu, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics) | |||
| HARDWARE_INTRINSIC(Sve2, ShiftLeftLogicalWideningEven, -1, 2, {INS_invalid, INS_invalid, INS_sve_sshllb, INS_sve_ushllb, INS_sve_sshllb, INS_sve_ushllb, INS_sve_sshllb, INS_sve_ushllb, INS_invalid, INS_invalid}, HW_Category_ShiftLeftByImmediate, HW_Flag_Scalable|HW_Flag_HasImmediateOperand) | |||
There was a problem hiding this comment.
also I think ShiftLeftLogicalWideningEven and ShiftLeftLogicalWideningOdd needs HW_Flag_BaseTypeFromFirstArg I guess?
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Includes:
Contributes towards #115479
@a74nh @kunalspathak