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[AArch64][SVE2] Add bfloat16 support to whilerw/whilewr intrinsics

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Reviewed By: fpetrogalli

Differential Revision: https://reviews.llvm.org/D82399
This commit is contained in:
Cullen Rhodes 2020-06-19 10:50:38 +00:00
parent fd2c4b8999
commit 05e10ee0ae
5 changed files with 97 additions and 0 deletions
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5
clang/include/clang/Basic/arm_sve.td
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@ -1962,6 +1962,11 @@ def SVWHILEWR_S : SInst<"svwhilewr[_{1}]", "Pcc", "iUif", MergeNone, "aarch64_sv
def SVWHILEWR_D : SInst<"svwhilewr[_{1}]", "Pcc", "lUld", MergeNone, "aarch64_sve_whilewr_d", [IsOverloadWhileRW]>;
}
let ArchGuard = "defined(__ARM_FEATURE_SVE2) && defined(__ARM_FEATURE_SVE_BF16)" in {
def SVWHILERW_H_BF16 : SInst<"svwhilerw[_{1}]", "Pcc", "b", MergeNone, "aarch64_sve_whilerw_h", [IsOverloadWhileRW]>;
def SVWHILEWR_H_BF16 : SInst<"svwhilewr[_{1}]", "Pcc", "b", MergeNone, "aarch64_sve_whilewr_h", [IsOverloadWhileRW]>;
}
////////////////////////////////////////////////////////////////////////////////
// SVE2 - Extended table lookup/permute
let ArchGuard = "defined(__ARM_FEATURE_SVE2)" in {

2
clang/lib/CodeGen/CGBuiltin.cpp
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@ -7726,6 +7726,8 @@ CodeGenFunction::getSVEPredType(SVETypeFlags TypeFlags) {
case SVETypeFlags::EltTyInt64:
return llvm::ScalableVectorType::get(Builder.getInt1Ty(), 2);
case SVETypeFlags::EltTyBFloat16:
return llvm::ScalableVectorType::get(Builder.getInt1Ty(), 8);
case SVETypeFlags::EltTyFloat16:
return llvm::ScalableVectorType::get(Builder.getInt1Ty(), 8);
case SVETypeFlags::EltTyFloat32:

36
clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilerw-bfloat.c Normal file
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@ -0,0 +1,36 @@
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// Test expected warnings for implicit declaration when +sve2 is missing
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify -verify-ignore-unexpected=error %s
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify=overload -verify-ignore-unexpected=error %s
// Test expected warnings for implicit declaration when +bf16 is missing
// NOTE: +bf16 doesn't currently imply __ARM_FEATURE_SVE_BF16, once the
// implementation is complete it will, at which point -target-feature +bf16
// should be removed.
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify -verify-ignore-unexpected=error %s
// Test expected ambiguous call error for overloaded form when +bf16 is missing
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify=overload-bf16 -verify-ignore-unexpected=note %s
#include <arm_sve.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
svbool_t test_svwhilerw_bf16(const bfloat16_t *op1, const bfloat16_t *op2)
{
// CHECK-LABEL: test_svwhilerw_bf16
// CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i1> @llvm.aarch64.sve.whilerw.h.nxv8i1.p0bf16(bfloat* %op1, bfloat* %op2)
// CHECK: %[[INTRINSIC_REINT:.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv8i1(<vscale x 8 x i1> %[[INTRINSIC]])
// CHECK: ret <vscale x 16 x i1> %[[INTRINSIC_REINT]]
// overload-warning@+3 {{implicit declaration of function 'svwhilerw'}}
// expected-warning@+2 {{implicit declaration of function 'svwhilerw_bf16'}}
// overload-bf16-error@+1 {{call to 'svwhilerw' is ambiguous}}
return SVE_ACLE_FUNC(svwhilerw,_bf16,,)(op1, op2);
}

36
clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilewr-bfloat.c Normal file
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@ -0,0 +1,36 @@
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// Test expected warnings for implicit declaration when +sve2 is missing
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify -verify-ignore-unexpected=error %s
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -D__ARM_FEATURE_SVE_BF16 -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify=overload -verify-ignore-unexpected=error %s
// Test expected warnings for implicit declaration when +bf16 is missing
// NOTE: +bf16 doesn't currently imply __ARM_FEATURE_SVE_BF16, once the
// implementation is complete it will, at which point -target-feature +bf16
// should be removed.
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify -verify-ignore-unexpected=error %s
// Test expected ambiguous call error for overloaded form when +bf16 is missing
// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 -D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify=overload-bf16 -verify-ignore-unexpected=note %s
#include <arm_sve.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
svbool_t test_svwhilewr_bf16(const bfloat16_t *op1, const bfloat16_t *op2)
{
// CHECK-LABEL: test_svwhilewr_bf16
// CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i1> @llvm.aarch64.sve.whilewr.h.nxv8i1.p0bf16(bfloat* %op1, bfloat* %op2)
// CHECK: %[[INTRINSIC_REINT:.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.convert.to.svbool.nxv8i1(<vscale x 8 x i1> %[[INTRINSIC]])
// CHECK: ret <vscale x 16 x i1> %[[INTRINSIC_REINT]]
// overload-warning@+3 {{implicit declaration of function 'svwhilewr'}}
// expected-warning@+2 {{implicit declaration of function 'svwhilewr_bf16'}}
// overload-bf16-error@+1 {{call to 'svwhilewr' is ambiguous}}
return SVE_ACLE_FUNC(svwhilewr,_bf16,,)(op1, op2);
}

18
llvm/test/CodeGen/AArch64/sve2-intrinsics-contiguous-conflict-detection.ll
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@ -36,6 +36,14 @@ define <vscale x 2 x i1> @whilerw_i64(i64* %a, i64* %b) {
ret <vscale x 2 x i1> %out
}
define <vscale x 8 x i1> @whilerw_bfloat(bfloat* %a, bfloat* %b) {
; CHECK-LABEL: whilerw_bfloat:
; CHECK: whilerw p0.h, x0, x1
; CHECK-NEXT: ret
%out = call <vscale x 8 x i1> @llvm.aarch64.sve.whilerw.h.nx8i1.bf16.bf16(bfloat* %a, bfloat* %b)
ret <vscale x 8 x i1> %out
}
define <vscale x 8 x i1> @whilerw_half(half* %a, half* %b) {
; CHECK-LABEL: whilerw_half:
; CHECK: whilerw p0.h, x0, x1
@ -96,6 +104,14 @@ define <vscale x 2 x i1> @whilewr_i64(i64* %a, i64* %b) {
ret <vscale x 2 x i1> %out
}
define <vscale x 8 x i1> @whilewr_bfloat(bfloat* %a, bfloat* %b) {
; CHECK-LABEL: whilewr_bfloat:
; CHECK: whilewr p0.h, x0, x1
; CHECK-NEXT: ret
%out = call <vscale x 8 x i1> @llvm.aarch64.sve.whilewr.h.nx8i1.bf16.bf16(bfloat* %a, bfloat* %b)
ret <vscale x 8 x i1> %out
}
define <vscale x 8 x i1> @whilewr_half(half* %a, half* %b) {
; CHECK-LABEL: whilewr_half:
; CHECK: whilewr p0.h, x0, x1
@ -125,6 +141,7 @@ declare <vscale x 8 x i1> @llvm.aarch64.sve.whilerw.h.nx8i1(i16* %a, i16* %b)
declare <vscale x 4 x i1> @llvm.aarch64.sve.whilerw.s.nx4i1(i32* %a, i32* %b)
declare <vscale x 2 x i1> @llvm.aarch64.sve.whilerw.d.nx2i1(i64* %a, i64* %b)
declare <vscale x 8 x i1> @llvm.aarch64.sve.whilerw.h.nx8i1.bf16.bf16(bfloat* %a, bfloat* %b)
declare <vscale x 8 x i1> @llvm.aarch64.sve.whilerw.h.nx8i1.f16.f16(half* %a, half* %b)
declare <vscale x 4 x i1> @llvm.aarch64.sve.whilerw.s.nx4i1.f32.f32(float* %a, float* %b)
declare <vscale x 2 x i1> @llvm.aarch64.sve.whilerw.d.nx2i1.f64.f64(double* %a, double* %b)
@ -134,6 +151,7 @@ declare <vscale x 8 x i1> @llvm.aarch64.sve.whilewr.h.nx8i1(i16* %a, i16* %b)
declare <vscale x 4 x i1> @llvm.aarch64.sve.whilewr.s.nx4i1(i32* %a, i32* %b)
declare <vscale x 2 x i1> @llvm.aarch64.sve.whilewr.d.nx2i1(i64* %a, i64* %b)
declare <vscale x 8 x i1> @llvm.aarch64.sve.whilewr.h.nx8i1.bf16.bf16(bfloat* %a, bfloat* %b)
declare <vscale x 8 x i1> @llvm.aarch64.sve.whilewr.h.nx8i1.f16.f16(half* %a, half* %b)
declare <vscale x 4 x i1> @llvm.aarch64.sve.whilewr.s.nx4i1.f32.f32(float* %a, float* %b)
declare <vscale x 2 x i1> @llvm.aarch64.sve.whilewr.d.nx2i1.f64.f64(double* %a, double* %b)