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[Clang][LLVM][AArch64] Add intrinsic for LUTI4 SME2 instruction
This patch adds these intrinsics: // Variants are also available for: _s8 svuint8x4_t svluti4_zt_u8_x4(uint64_t zt0, svuint8x2_t zn) __arm_streaming __arm_in("zt0"); according to PR#324[1] [1]ARM-software/acle#324
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‎clang/include/clang/Basic/arm_sme.td‎

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@@ -817,4 +817,9 @@ multiclass ZAReadzArray<string vg_num>{
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defm SVREADZ_VG2 : ZAReadzArray<"2">;
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defm SVREADZ_VG4 : ZAReadzArray<"4">;
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let SMETargetGuard = "sme2,sme-lutv2" in {
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def SVLUTI4_ZT_X4 : SInst<"svluti4_zt_{d}_x4", "4i2", "cUc", MergeNone, "aarch64_sme_luti4_zt_x4", [IsStreaming, IsInOutZT0], [ImmCheck<0, ImmCheck0_0>]>;
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}
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} // let SVETargetGuard = InvalidMode

‎clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_luti4_zt.c‎

Lines changed: 82 additions & 0 deletions
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@@ -0,0 +1,82 @@
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// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +bf16 -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -O2 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -x c++ -triple aarch64-none-linux-gnu -target-feature +bf16 -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -O2 -Werror -Wall -emit-llvm -o - %s | FileCheck %s -check-prefix CHECK-CXX
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// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +bf16 -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -O2 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -x c++ -triple aarch64-none-linux-gnu -target-feature +bf16 -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -O2 -Werror -Wall -emit-llvm -o - %s | FileCheck %s -check-prefix CHECK-CXX
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +bf16 -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -O2 -S -Werror -Wall -o /dev/null %s
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// REQUIRES: aarch64-registered-target
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#include <arm_sme.h>
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// CHECK-LABEL: define dso_local <vscale x 64 x i8> @test_luti4_zt_u8_x4(
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// CHECK-SAME: <vscale x 32 x i8> [[OP:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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// CHECK-NEXT: [[ENTRY:.*:]]
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// CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 0)
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// CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 16)
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// CHECK-NEXT: [[TMP2:%.*]] = tail call { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } @llvm.aarch64.sme.luti4.zt.x4.nxv16i8(i32 0, <vscale x 16 x i8> [[TMP0]], <vscale x 16 x i8> [[TMP1]])
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// CHECK-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 0
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// CHECK-NEXT: [[TMP4:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> poison, <vscale x 16 x i8> [[TMP3]], i64 0)
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// CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 1
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// CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP4]], <vscale x 16 x i8> [[TMP5]], i64 16)
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// CHECK-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 2
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// CHECK-NEXT: [[TMP8:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP6]], <vscale x 16 x i8> [[TMP7]], i64 32)
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// CHECK-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 3
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// CHECK-NEXT: [[TMP10:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP8]], <vscale x 16 x i8> [[TMP9]], i64 48)
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// CHECK-NEXT: ret <vscale x 64 x i8> [[TMP10]]
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//
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// CHECK-CXX-LABEL: define dso_local <vscale x 64 x i8> @_Z19test_luti4_zt_u8_x411svuint8x2_t(
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// CHECK-CXX-SAME: <vscale x 32 x i8> [[OP:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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// CHECK-CXX-NEXT: [[ENTRY:.*:]]
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// CHECK-CXX-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 0)
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// CHECK-CXX-NEXT: [[TMP1:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 16)
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// CHECK-CXX-NEXT: [[TMP2:%.*]] = tail call { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } @llvm.aarch64.sme.luti4.zt.x4.nxv16i8(i32 0, <vscale x 16 x i8> [[TMP0]], <vscale x 16 x i8> [[TMP1]])
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// CHECK-CXX-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 0
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// CHECK-CXX-NEXT: [[TMP4:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> poison, <vscale x 16 x i8> [[TMP3]], i64 0)
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// CHECK-CXX-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 1
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// CHECK-CXX-NEXT: [[TMP6:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP4]], <vscale x 16 x i8> [[TMP5]], i64 16)
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// CHECK-CXX-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 2
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// CHECK-CXX-NEXT: [[TMP8:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP6]], <vscale x 16 x i8> [[TMP7]], i64 32)
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// CHECK-CXX-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 3
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// CHECK-CXX-NEXT: [[TMP10:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP8]], <vscale x 16 x i8> [[TMP9]], i64 48)
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// CHECK-CXX-NEXT: ret <vscale x 64 x i8> [[TMP10]]
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//
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svuint8x4_t test_luti4_zt_u8_x4(svuint8x2_t op) __arm_streaming __arm_in("zt0") {
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return svluti4_zt_u8_x4(0, op);
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}
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// CHECK-LABEL: define dso_local <vscale x 64 x i8> @test_luti4_zt_s8_x4(
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// CHECK-SAME: <vscale x 32 x i8> [[OP:%.*]]) local_unnamed_addr #[[ATTR0]] {
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// CHECK-NEXT: [[ENTRY:.*:]]
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// CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 0)
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// CHECK-NEXT: [[TMP1:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 16)
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// CHECK-NEXT: [[TMP2:%.*]] = tail call { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } @llvm.aarch64.sme.luti4.zt.x4.nxv16i8(i32 0, <vscale x 16 x i8> [[TMP0]], <vscale x 16 x i8> [[TMP1]])
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// CHECK-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 0
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// CHECK-NEXT: [[TMP4:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> poison, <vscale x 16 x i8> [[TMP3]], i64 0)
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// CHECK-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 1
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// CHECK-NEXT: [[TMP6:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP4]], <vscale x 16 x i8> [[TMP5]], i64 16)
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// CHECK-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 2
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// CHECK-NEXT: [[TMP8:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP6]], <vscale x 16 x i8> [[TMP7]], i64 32)
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// CHECK-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 3
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// CHECK-NEXT: [[TMP10:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP8]], <vscale x 16 x i8> [[TMP9]], i64 48)
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// CHECK-NEXT: ret <vscale x 64 x i8> [[TMP10]]
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//
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// CHECK-CXX-LABEL: define dso_local <vscale x 64 x i8> @_Z19test_luti4_zt_s8_x410svint8x2_t(
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// CHECK-CXX-SAME: <vscale x 32 x i8> [[OP:%.*]]) local_unnamed_addr #[[ATTR0]] {
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// CHECK-CXX-NEXT: [[ENTRY:.*:]]
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// CHECK-CXX-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 0)
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// CHECK-CXX-NEXT: [[TMP1:%.*]] = tail call <vscale x 16 x i8> @llvm.vector.extract.nxv16i8.nxv32i8(<vscale x 32 x i8> [[OP]], i64 16)
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// CHECK-CXX-NEXT: [[TMP2:%.*]] = tail call { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } @llvm.aarch64.sme.luti4.zt.x4.nxv16i8(i32 0, <vscale x 16 x i8> [[TMP0]], <vscale x 16 x i8> [[TMP1]])
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// CHECK-CXX-NEXT: [[TMP3:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 0
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// CHECK-CXX-NEXT: [[TMP4:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> poison, <vscale x 16 x i8> [[TMP3]], i64 0)
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// CHECK-CXX-NEXT: [[TMP5:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 1
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// CHECK-CXX-NEXT: [[TMP6:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP4]], <vscale x 16 x i8> [[TMP5]], i64 16)
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// CHECK-CXX-NEXT: [[TMP7:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 2
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// CHECK-CXX-NEXT: [[TMP8:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP6]], <vscale x 16 x i8> [[TMP7]], i64 32)
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// CHECK-CXX-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8> } [[TMP2]], 3
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// CHECK-CXX-NEXT: [[TMP10:%.*]] = tail call <vscale x 64 x i8> @llvm.vector.insert.nxv64i8.nxv16i8(<vscale x 64 x i8> [[TMP8]], <vscale x 16 x i8> [[TMP9]], i64 48)
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// CHECK-CXX-NEXT: ret <vscale x 64 x i8> [[TMP10]]
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//
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svint8x4_t test_luti4_zt_s8_x4(svint8x2_t op) __arm_streaming __arm_in("zt0") {
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return svluti4_zt_s8_x4(0, op);
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}

‎clang/test/Sema/aarch64-sme2-intrinsics/acle_sme2_imm.cpp‎

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Original file line numberDiff line numberDiff line change
@@ -350,3 +350,8 @@ void test_svdot_multi_za32_bad_lane(uint32_t slice_base, svuint16_t z_u16,
350350
svsudot_lane_za32_s8_vg1x2(slice_base, z_s8x2, z_u8, 4); // expected-error {{argument value 4 is outside the valid range [0, 3]}}
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svsudot_lane_za32_s8_vg1x4(slice_base, z_s8x4, z_u8, 4); // expected-error {{argument value 4 is outside the valid range [0, 3]}}
352352
}
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void test_rluti4_zt_x4(svuint8x2_t op) __arm_streaming __arm_inout("zt0") {
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// Check Zt tile 0
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svluti4_zt_u8_x4(1, op); // expected-error {{argument value 1 is outside the valid range [0, 0]}}
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}

‎llvm/include/llvm/IR/IntrinsicsAArch64.td‎

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Original file line numberDiff line numberDiff line change
@@ -3678,6 +3678,12 @@ let TargetPrefix = "aarch64" in {
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: DefaultAttrsIntrinsic<[llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
36793679
[llvm_i32_ty, llvm_nxv16i8_ty, llvm_i32_ty],
36803680
[ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<2>>, IntrReadMem]>;
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3682+
def int_aarch64_sme_luti4_zt_x4
3683+
: DefaultAttrsIntrinsic<[llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
3684+
[llvm_i32_ty, llvm_nxv16i8_ty, llvm_nxv16i8_ty],
3685+
[ImmArg<ArgIndex<0>>, IntrNoMem, IntrHasSideEffects]>;
3686+
36813687
}
36823688

36833689
// SVE2.1 - ZIPQ1, ZIPQ2, UZPQ1, UZPQ2

‎llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp‎

Lines changed: 16 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -410,7 +410,7 @@ class AArch64DAGToDAGISel : public SelectionDAGISel {
410410
}
411411

412412
void SelectMultiVectorLuti(SDNode *Node, unsigned NumOutVecs, unsigned Opc,
413-
uint32_t MaxImm);
413+
uint32_t MaxImm, bool IsMultiVector = false);
414414

415415
template <unsigned MaxIdx, unsigned Scale>
416416
bool SelectSMETileSlice(SDValue N, SDValue &Vector, SDValue &Offset) {
@@ -1896,15 +1896,23 @@ void AArch64DAGToDAGISel::SelectFrintFromVT(SDNode *N, unsigned NumVecs,
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void AArch64DAGToDAGISel::SelectMultiVectorLuti(SDNode *Node,
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unsigned NumOutVecs,
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unsigned Opc, uint32_t MaxImm) {
1899+
unsigned Opc, uint32_t MaxImm,
1900+
bool IsMultiVector) {
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if (ConstantSDNode *Imm = dyn_cast<ConstantSDNode>(Node->getOperand(4)))
19011902
if (Imm->getZExtValue() > MaxImm)
19021903
return;
19031904

19041905
SDValue ZtValue;
1906+
SmallVector<SDValue, 4> Ops;
19051907
if (!ImmToReg<AArch64::ZT0, 0>(Node->getOperand(2), ZtValue))
19061908
return;
1907-
SDValue Ops[] = {ZtValue, Node->getOperand(3), Node->getOperand(4)};
1909+
Ops.push_back(ZtValue);
1910+
if (IsMultiVector) {
1911+
Ops.push_back(createZMulTuple({Node->getOperand(3), Node->getOperand(4)}));
1912+
} else {
1913+
Ops.push_back(Node->getOperand(3));
1914+
Ops.push_back(Node->getOperand(4));
1915+
}
19081916
SDLoc DL(Node);
19091917
EVT VT = Node->getValueType(0);
19101918

@@ -5415,6 +5423,11 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) {
54155423
SelectMultiVectorLuti(Node, 2, Opc, 3);
54165424
return;
54175425
}
5426+
case Intrinsic::aarch64_sme_luti4_zt_x4: {
5427+
// Does not have immediate but it has 2ZPR input
5428+
SelectMultiVectorLuti(Node, 4, AArch64::LUTI4_4ZZT2Z, 0, true);
5429+
return;
5430+
}
54185431
}
54195432
} break;
54205433
case ISD::INTRINSIC_WO_CHAIN: {

‎llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -936,7 +936,7 @@ defm FAMIN_4Z4Z : sme2_fp_sve_destructive_vector_vg4_multi<"famin", 0b0010101>;
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937937
let Predicates = [HasSME2, HasSME_LUTv2] in {
938938
defm MOVT : sme2_movt_zt_to_zt<"movt", 0b0011111>;
939-
def LUTI4_4ZZT2Z : sme2_luti4_vector_vg4<0b00, 0b00,"luti4">;
939+
def LUTI4_4ZZT2Z : sme2_luti4_vector_vg4<0b00, 0b00,"luti4">;
940940
} //[HasSME2, HasSME_LUTv2]
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942942
let Predicates = [HasSME2p1, HasSME_LUTv2] in {

‎llvm/test/CodeGen/AArch64/sme2-intrinsics-write-zt.ll‎

Lines changed: 17 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,17 @@
1+
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
2+
; RUN: llc -verify-machineinstrs -force-streaming < %s | FileCheck %s
3+
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target triple = "aarch64-linux"
5+
6+
define {<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>} @test_luti4_zt_i8(<vscale x 16 x i8> %v0, <vscale x 16 x i8> %v1) #0 {
7+
; CHECK-LABEL: test_luti4_zt_i8:
8+
; CHECK: // %bb.0:
9+
; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
10+
; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
11+
; CHECK-NEXT: luti4 { z0.b - z3.b }, zt0, { z0, z1 }
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; CHECK-NEXT: ret
13+
%res = call {<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>} @llvm.aarch64.sme.luti4.zt.x4.nxv16i8(i32 0, <vscale x 16 x i8> %v0, <vscale x 16 x i8> %v1)
14+
ret {<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>} %res
15+
}
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17+
attributes #0 = { "target-features"="+sme2,+sme-lutv2"}

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