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[AArch64][SME2] Add builtins to cast svbool from/to svcount. #74720

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Merged
merged 2 commits into from
Dec 8, 2023
Merged

[AArch64][SME2] Add builtins to cast svbool from/to svcount. #74720

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e54baef
[AArch64][SME2] Add builtins to cast svbool from/to svcount.
Dec 7, 2023
0e2cd84
Removed MemEltTyDefault as it is a default value.
Dec 7, 2023
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3 changes: 3 additions & 0 deletions clang/include/clang/Basic/arm_sve.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2161,6 +2161,9 @@ let TargetGuard = "sme2" in {
def SVSQRSHRU_X4 : SInst<"svqrshru[_n]_{0}[_{d}_x4]", "b4i", "il", MergeNone, "aarch64_sve_sqrshru_x4", [IsStreaming], [ImmCheck<1, ImmCheckShiftRight, 0>]>;

def SVSQRSHRUN_X4 : SInst<"svqrshrun[_n]_{0}[_{d}_x4]", "b4i", "il", MergeNone, "aarch64_sve_sqrshrun_x4", [IsStreaming], [ImmCheck<1, ImmCheckShiftRight, 0>]>;

def REINTERPRET_SVBOOL_TO_SVCOUNT : Inst<"svreinterpret[_c]", "}P", "Pc", MergeNone, "", [IsStreamingCompatible], []>;
def REINTERPRET_SVCOUNT_TO_SVBOOL : Inst<"svreinterpret[_b]", "P}", "Pc", MergeNone, "", [IsStreamingCompatible], []>;
}

let TargetGuard = "sve2p1" in {
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16 changes: 16 additions & 0 deletions clang/lib/CodeGen/CGBuiltin.cpp
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Expand Up @@ -10211,6 +10211,22 @@ Value *CodeGenFunction::EmitAArch64SVEBuiltinExpr(unsigned BuiltinID,
switch (BuiltinID) {
default:
return nullptr;

case SVE::BI__builtin_sve_svreinterpret_b: {
auto SVCountTy =
llvm::TargetExtType::get(getLLVMContext(), "aarch64.svcount");
Function *CastFromSVCountF =
CGM.getIntrinsic(Intrinsic::aarch64_sve_convert_to_svbool, SVCountTy);
return Builder.CreateCall(CastFromSVCountF, Ops[0]);
}
case SVE::BI__builtin_sve_svreinterpret_c: {
auto SVCountTy =
llvm::TargetExtType::get(getLLVMContext(), "aarch64.svcount");
Function *CastToSVCountF =
CGM.getIntrinsic(Intrinsic::aarch64_sve_convert_from_svbool, SVCountTy);
return Builder.CreateCall(CastToSVCountF, Ops[0]);
}

case SVE::BI__builtin_sve_svpsel_lane_b8:
case SVE::BI__builtin_sve_svpsel_lane_b16:
case SVE::BI__builtin_sve_svpsel_lane_b32:
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47 changes: 47 additions & 0 deletions clang/test/CodeGen/aarch64-sme2-intrinsics/acle_sme2_reinterpret_svcount_svbool.c
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@@ -0,0 +1,47 @@
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py

// REQUIRES: aarch64-registered-target

// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK
// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
// RUN: %clang_cc1 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix=CPP-CHECK

#include <arm_sme_draft_spec_subject_to_change.h>

#ifdef SVE_OVERLOADED_FORMS
// A simple used,unused... macro, long enough to represent any SVE builtin.§
#define SVE_ACLE_FUNC(A1,A2_UNUSED,A3,A4_UNUSED) A1##A3
#else
#define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
#endif

// CHECK-LABEL: @test_svreinterpret_svbool_svcnt(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.taarch64.svcountt(target("aarch64.svcount") [[CNT:%.*]])
// CHECK-NEXT: ret <vscale x 16 x i1> [[TMP0]]
//
// CPP-CHECK-LABEL: @_Z31test_svreinterpret_svbool_svcntu11__SVCount_t(
// CPP-CHECK-NEXT: entry:
// CPP-CHECK-NEXT: [[TMP0:%.*]] = tail call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.taarch64.svcountt(target("aarch64.svcount") [[CNT:%.*]])
// CPP-CHECK-NEXT: ret <vscale x 16 x i1> [[TMP0]]
//
svbool_t test_svreinterpret_svbool_svcnt(svcount_t cnt) __arm_streaming_compatible
{
return SVE_ACLE_FUNC(svreinterpret,_b,,)(cnt);
}

// CHECK-LABEL: @test_svreinterpret_svcnt_svbool(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = tail call target("aarch64.svcount") @llvm.aarch64.sve.convert.from.svbool.taarch64.svcountt(<vscale x 16 x i1> [[PG:%.*]])
// CHECK-NEXT: ret target("aarch64.svcount") [[TMP0]]
//
// CPP-CHECK-LABEL: @_Z31test_svreinterpret_svcnt_svboolu10__SVBool_t(
// CPP-CHECK-NEXT: entry:
// CPP-CHECK-NEXT: [[TMP0:%.*]] = tail call target("aarch64.svcount") @llvm.aarch64.sve.convert.from.svbool.taarch64.svcountt(<vscale x 16 x i1> [[PG:%.*]])
// CPP-CHECK-NEXT: ret target("aarch64.svcount") [[TMP0]]
//
svcount_t test_svreinterpret_svcnt_svbool(svbool_t pg) __arm_streaming_compatible
{
return SVE_ACLE_FUNC(svreinterpret,_c,,)(pg);
}