[ARM,MVE] Add vbrsrq intrinsics family

Summary:
This patch adds a new MVE intrinsics family, `vbrsrq`: vector bit
reverse and shift right. The intrinsics are compiled into the VBRSR
instruction. Two new LLVM IR intrinsics were also added: arm.mve.vbrsr
and arm.mve.vbrsr.predicated.

Reviewers: simon_tatham, dmgreen, ostannard, MarkMurrayARM

Reviewed By: simon_tatham

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74721
This commit is contained in:
Mikhail Maltsev 2020-02-18 17:31:21 +00:00
parent e32522ca17
commit 63809d365e
5 changed files with 218 additions and 0 deletions

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@ -1276,3 +1276,13 @@ foreach desttype = !listconcat(T.Int16, T.Int32, T.Float) in {
1, "_n_"#desttype, PNT_2Type, pnt_nx>;
}
}
let params = T.All in {
let pnt = PNT_NType in
def vbrsrq_n: Intrinsic<Vector, (args Vector:$a, s32:$b),
(IRInt<"vbrsr", [Vector]> $a, $b)>;
defm vbrsrq : IntrinsicMX<Vector, (args Vector:$a, s32:$b, Predicate:$pred),
(IRInt<"vbrsr_predicated", [Vector, Predicate]>
$inactive, $a, $b, $pred), 1, "_n",
PNT_NType, PNT_NType>;
}

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@ -0,0 +1,92 @@
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -DPOLYMORPHIC -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
#include <arm_mve.h>
// CHECK-LABEL: @test_vbrsrq_n_u32(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = call <4 x i32> @llvm.arm.mve.vbrsr.v4i32(<4 x i32> [[A:%.*]], i32 [[B:%.*]])
// CHECK-NEXT: ret <4 x i32> [[TMP0]]
//
uint32x4_t test_vbrsrq_n_u32(uint32x4_t a, int32_t b) {
#ifdef POLYMORPHIC
return vbrsrq(a, b);
#else /* POLYMORPHIC */
return vbrsrq_n_u32(a, b);
#endif /* POLYMORPHIC */
}
// CHECK-LABEL: @test_vbrsrq_n_f16(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = call <8 x half> @llvm.arm.mve.vbrsr.v8f16(<8 x half> [[A:%.*]], i32 [[B:%.*]])
// CHECK-NEXT: ret <8 x half> [[TMP0]]
//
float16x8_t test_vbrsrq_n_f16(float16x8_t a, int32_t b) {
#ifdef POLYMORPHIC
return vbrsrq(a, b);
#else /* POLYMORPHIC */
return vbrsrq_n_f16(a, b);
#endif /* POLYMORPHIC */
}
// CHECK-LABEL: @test_vbrsrq_m_n_s8(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
// CHECK-NEXT: [[TMP1:%.*]] = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 [[TMP0]])
// CHECK-NEXT: [[TMP2:%.*]] = call <16 x i8> @llvm.arm.mve.vbrsr.predicated.v16i8.v16i1(<16 x i8> [[INACTIVE:%.*]], <16 x i8> [[A:%.*]], i32 [[B:%.*]], <16 x i1> [[TMP1]])
// CHECK-NEXT: ret <16 x i8> [[TMP2]]
//
int8x16_t test_vbrsrq_m_n_s8(int8x16_t inactive, int8x16_t a, int32_t b, mve_pred16_t p) {
#ifdef POLYMORPHIC
return vbrsrq_m(inactive, a, b, p);
#else /* POLYMORPHIC */
return vbrsrq_m_n_s8(inactive, a, b, p);
#endif /* POLYMORPHIC */
}
// CHECK-LABEL: @test_vbrsrq_m_n_f32(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
// CHECK-NEXT: [[TMP1:%.*]] = call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 [[TMP0]])
// CHECK-NEXT: [[TMP2:%.*]] = call <4 x float> @llvm.arm.mve.vbrsr.predicated.v4f32.v4i1(<4 x float> [[INACTIVE:%.*]], <4 x float> [[A:%.*]], i32 [[B:%.*]], <4 x i1> [[TMP1]])
// CHECK-NEXT: ret <4 x float> [[TMP2]]
//
float32x4_t test_vbrsrq_m_n_f32(float32x4_t inactive, float32x4_t a, int32_t b, mve_pred16_t p) {
#ifdef POLYMORPHIC
return vbrsrq_m(inactive, a, b, p);
#else /* POLYMORPHIC */
return vbrsrq_m_n_f32(inactive, a, b, p);
#endif /* POLYMORPHIC */
}
// CHECK-LABEL: @test_vbrsrq_x_n_u16(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
// CHECK-NEXT: [[TMP1:%.*]] = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 [[TMP0]])
// CHECK-NEXT: [[TMP2:%.*]] = call <8 x i16> @llvm.arm.mve.vbrsr.predicated.v8i16.v8i1(<8 x i16> undef, <8 x i16> [[A:%.*]], i32 [[B:%.*]], <8 x i1> [[TMP1]])
// CHECK-NEXT: ret <8 x i16> [[TMP2]]
//
uint16x8_t test_vbrsrq_x_n_u16(uint16x8_t a, int32_t b, mve_pred16_t p) {
#ifdef POLYMORPHIC
return vbrsrq_x(a, b, p);
#else /* POLYMORPHIC */
return vbrsrq_x_n_u16(a, b, p);
#endif /* POLYMORPHIC */
}
// CHECK-LABEL: @test_vbrsrq_x_n_f16(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
// CHECK-NEXT: [[TMP1:%.*]] = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 [[TMP0]])
// CHECK-NEXT: [[TMP2:%.*]] = call <8 x half> @llvm.arm.mve.vbrsr.predicated.v8f16.v8i1(<8 x half> undef, <8 x half> [[A:%.*]], i32 [[B:%.*]], <8 x i1> [[TMP1]])
// CHECK-NEXT: ret <8 x half> [[TMP2]]
//
float16x8_t test_vbrsrq_x_n_f16(float16x8_t a, int32_t b, mve_pred16_t p) {
#ifdef POLYMORPHIC
return vbrsrq_x(a, b, p);
#else /* POLYMORPHIC */
return vbrsrq_x_n_f16(a, b, p);
#endif /* POLYMORPHIC */
}

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@ -1164,4 +1164,8 @@ def int_arm_mve_vrintn: Intrinsic<
def int_arm_mve_vcls: Intrinsic<
[llvm_anyvector_ty], [LLVMMatchType<0>], [IntrNoMem]>;
defm int_arm_mve_vbrsr: MVEMXPredicated<
[llvm_anyvector_ty], [],
[LLVMMatchType<0>, llvm_i32_ty], LLVMMatchType<0>, llvm_anyvector_ty>;
} // end TargetPrefix

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@ -4795,6 +4795,20 @@ def MVE_VBRSR8 : MVE_VBRSR<"vbrsr", "8", 0b00>;
def MVE_VBRSR16 : MVE_VBRSR<"vbrsr", "16", 0b01>;
def MVE_VBRSR32 : MVE_VBRSR<"vbrsr", "32", 0b10>;
multiclass MVE_VBRSR_pat_m<MVEVectorVTInfo VTI, Instruction Inst> {
// Unpredicated
def : Pat<(VTI.Vec (int_arm_mve_vbrsr (VTI.Vec MQPR:$Qn), (i32 rGPR:$Rm))),
(VTI.Vec (Inst (VTI.Vec MQPR:$Qn), (i32 rGPR:$Rm)))>;
// Predicated
def : Pat<(VTI.Vec (int_arm_mve_vbrsr_predicated
(VTI.Vec MQPR:$inactive),
(VTI.Vec MQPR:$Qn), (i32 rGPR:$Rm),
(VTI.Pred VCCR:$mask))),
(VTI.Vec (Inst (VTI.Vec MQPR:$Qn), (i32 rGPR:$Rm),
ARMVCCThen, (VTI.Pred VCCR:$mask),
(VTI.Vec MQPR:$inactive)))>;
}
let Predicates = [HasMVEInt] in {
def : Pat<(v16i8 ( bitreverse (v16i8 MQPR:$val1))),
(v16i8 ( MVE_VBRSR8 (v16i8 MQPR:$val1), (t2MOVi (i32 8)) ))>;
@ -4804,6 +4818,15 @@ let Predicates = [HasMVEInt] in {
def : Pat<(v8i16 ( bitreverse (v8i16 MQPR:$val1))),
(v8i16 ( MVE_VBRSR16 (v8i16 MQPR:$val1), (t2MOVi (i32 16)) ))>;
defm : MVE_VBRSR_pat_m<MVE_v16i8, MVE_VBRSR8>;
defm : MVE_VBRSR_pat_m<MVE_v8i16, MVE_VBRSR16>;
defm : MVE_VBRSR_pat_m<MVE_v4i32, MVE_VBRSR32>;
}
let Predicates = [HasMVEFloat] in {
defm : MVE_VBRSR_pat_m<MVE_v8f16, MVE_VBRSR16>;
defm : MVE_VBRSR_pat_m<MVE_v4f32, MVE_VBRSR32>;
}
class MVE_VMUL_qr_int<string iname, string suffix, bits<2> size>

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@ -0,0 +1,89 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -verify-machineinstrs -o - %s | FileCheck %s
declare <8 x half> @llvm.arm.mve.vbrsr.v8f16(<8 x half>, i32)
declare <4 x i32> @llvm.arm.mve.vbrsr.v4i32(<4 x i32>, i32)
declare <16 x i8> @llvm.arm.mve.vbrsr.predicated.v16i8.v16i1(<16 x i8>, <16 x i8>, i32, <16 x i1>)
declare <8 x i16> @llvm.arm.mve.vbrsr.predicated.v8i16.v8i1(<8 x i16>, <8 x i16>, i32, <8 x i1>)
declare <4 x float> @llvm.arm.mve.vbrsr.predicated.v4f32.v4i1(<4 x float>, <4 x float>, i32, <4 x i1>)
declare <8 x half> @llvm.arm.mve.vbrsr.predicated.v8f16.v8i1(<8 x half>, <8 x half>, i32, <8 x i1>)
declare <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32)
declare <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32)
declare <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32)
define arm_aapcs_vfpcc <4 x i32> @test_vbrsrq_n_u32(<4 x i32> %a, i32 %b) {
; CHECK-LABEL: test_vbrsrq_n_u32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vbrsr.32 q0, q0, r0
; CHECK-NEXT: bx lr
entry:
%0 = call <4 x i32> @llvm.arm.mve.vbrsr.v4i32(<4 x i32> %a, i32 %b)
ret <4 x i32> %0
}
define arm_aapcs_vfpcc <8 x half> @test_vbrsrq_n_f16(<8 x half> %a, i32 %b) {
; CHECK-LABEL: test_vbrsrq_n_f16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vbrsr.16 q0, q0, r0
; CHECK-NEXT: bx lr
entry:
%0 = call <8 x half> @llvm.arm.mve.vbrsr.v8f16(<8 x half> %a, i32 %b)
ret <8 x half> %0
}
define arm_aapcs_vfpcc <16 x i8> @test_vbrsrq_m_n_s8(<16 x i8> %inactive, <16 x i8> %a, i32 %b, i16 zeroext %p) {
; CHECK-LABEL: test_vbrsrq_m_n_s8:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vmsr p0, r1
; CHECK-NEXT: vpst
; CHECK-NEXT: vbrsrt.8 q0, q1, r0
; CHECK-NEXT: bx lr
entry:
%0 = zext i16 %p to i32
%1 = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 %0)
%2 = call <16 x i8> @llvm.arm.mve.vbrsr.predicated.v16i8.v16i1(<16 x i8> %inactive, <16 x i8> %a, i32 %b, <16 x i1> %1)
ret <16 x i8> %2
}
define arm_aapcs_vfpcc <4 x float> @test_vbrsrq_m_n_f32(<4 x float> %inactive, <4 x float> %a, i32 %b, i16 zeroext %p) {
; CHECK-LABEL: test_vbrsrq_m_n_f32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vmsr p0, r1
; CHECK-NEXT: vpst
; CHECK-NEXT: vbrsrt.32 q0, q1, r0
; CHECK-NEXT: bx lr
entry:
%0 = zext i16 %p to i32
%1 = call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 %0)
%2 = call <4 x float> @llvm.arm.mve.vbrsr.predicated.v4f32.v4i1(<4 x float> %inactive, <4 x float> %a, i32 %b, <4 x i1> %1)
ret <4 x float> %2
}
define arm_aapcs_vfpcc <8 x i16> @test_vbrsrq_x_n_u16(<8 x i16> %a, i32 %b, i16 zeroext %p) {
; CHECK-LABEL: test_vbrsrq_x_n_u16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vmsr p0, r1
; CHECK-NEXT: vpst
; CHECK-NEXT: vbrsrt.16 q0, q0, r0
; CHECK-NEXT: bx lr
entry:
%0 = zext i16 %p to i32
%1 = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 %0)
%2 = call <8 x i16> @llvm.arm.mve.vbrsr.predicated.v8i16.v8i1(<8 x i16> undef, <8 x i16> %a, i32 %b, <8 x i1> %1)
ret <8 x i16> %2
}
define arm_aapcs_vfpcc <8 x half> @test_vbrsrq_x_n_f16(<8 x half> %a, i32 %b, i16 zeroext %p) {
; CHECK-LABEL: test_vbrsrq_x_n_f16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vmsr p0, r1
; CHECK-NEXT: vpst
; CHECK-NEXT: vbrsrt.16 q0, q0, r0
; CHECK-NEXT: bx lr
entry:
%0 = zext i16 %p to i32
%1 = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 %0)
%2 = call <8 x half> @llvm.arm.mve.vbrsr.predicated.v8f16.v8i1(<8 x half> undef, <8 x half> %a, i32 %b, <8 x i1> %1)
ret <8 x half> %2
}