8907b6d393
Build on top of https://github.com/llvm/llvm-project/pull/154510 to completely remove the blocks of dead scalar loops. Depends on https://github.com/llvm/llvm-project/pull/154510. PR: https://github.com/llvm/llvm-project/pull/155497
168 lines
10 KiB
LLVM
168 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v -S | FileCheck %s -check-prefix=NO-ZVFBFMIN
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v -S -prefer-predicate-over-epilogue=scalar-epilogue | FileCheck %s -check-prefix=NO-ZVFBFMIN
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v -S -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue | FileCheck %s -check-prefix=NO-ZVFBFMIN
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; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfbfmin -S | FileCheck %s -check-prefix=ZVFBFMIN
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define void @fadd(ptr noalias %a, ptr noalias %b, i64 %n) {
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; NO-ZVFBFMIN-LABEL: define void @fadd(
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; NO-ZVFBFMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
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; NO-ZVFBFMIN-NEXT: [[ENTRY:.*]]:
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; NO-ZVFBFMIN-NEXT: br label %[[LOOP:.*]]
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; NO-ZVFBFMIN: [[LOOP]]:
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; NO-ZVFBFMIN-NEXT: [[I:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ]
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; NO-ZVFBFMIN-NEXT: [[A_GEP:%.*]] = getelementptr bfloat, ptr [[A]], i64 [[I]]
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; NO-ZVFBFMIN-NEXT: [[B_GEP:%.*]] = getelementptr bfloat, ptr [[B]], i64 [[I]]
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; NO-ZVFBFMIN-NEXT: [[X:%.*]] = load bfloat, ptr [[A_GEP]], align 2
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; NO-ZVFBFMIN-NEXT: [[Y:%.*]] = load bfloat, ptr [[B_GEP]], align 2
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; NO-ZVFBFMIN-NEXT: [[Z:%.*]] = fadd bfloat [[X]], [[Y]]
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; NO-ZVFBFMIN-NEXT: store bfloat [[Z]], ptr [[A_GEP]], align 2
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; NO-ZVFBFMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1
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; NO-ZVFBFMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]]
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; NO-ZVFBFMIN-NEXT: br i1 [[DONE]], label %[[EXIT:.*]], label %[[LOOP]]
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; NO-ZVFBFMIN: [[EXIT]]:
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; NO-ZVFBFMIN-NEXT: ret void
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;
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; ZVFBFMIN-LABEL: define void @fadd(
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; ZVFBFMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
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; ZVFBFMIN-NEXT: [[ENTRY:.*:]]
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; ZVFBFMIN-NEXT: br label %[[VECTOR_PH:.*]]
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; ZVFBFMIN: [[VECTOR_PH]]:
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; ZVFBFMIN-NEXT: br label %[[VECTOR_BODY:.*]]
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; ZVFBFMIN: [[VECTOR_BODY]]:
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; ZVFBFMIN-NEXT: [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; ZVFBFMIN-NEXT: [[AVL:%.*]] = phi i64 [ [[N]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; ZVFBFMIN-NEXT: [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 8, i1 true)
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; ZVFBFMIN-NEXT: [[TMP1:%.*]] = getelementptr bfloat, ptr [[A]], i64 [[TMP0]]
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; ZVFBFMIN-NEXT: [[TMP2:%.*]] = getelementptr bfloat, ptr [[B]], i64 [[TMP0]]
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; ZVFBFMIN-NEXT: [[WIDE_LOAD:%.*]] = call <vscale x 8 x bfloat> @llvm.vp.load.nxv8bf16.p0(ptr align 2 [[TMP1]], <vscale x 8 x i1> splat (i1 true), i32 [[TMP6]])
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; ZVFBFMIN-NEXT: [[WIDE_LOAD1:%.*]] = call <vscale x 8 x bfloat> @llvm.vp.load.nxv8bf16.p0(ptr align 2 [[TMP2]], <vscale x 8 x i1> splat (i1 true), i32 [[TMP6]])
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; ZVFBFMIN-NEXT: [[TMP11:%.*]] = fadd <vscale x 8 x bfloat> [[WIDE_LOAD]], [[WIDE_LOAD1]]
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; ZVFBFMIN-NEXT: call void @llvm.vp.store.nxv8bf16.p0(<vscale x 8 x bfloat> [[TMP11]], ptr align 2 [[TMP1]], <vscale x 8 x i1> splat (i1 true), i32 [[TMP6]])
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; ZVFBFMIN-NEXT: [[TMP13:%.*]] = zext i32 [[TMP6]] to i64
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; ZVFBFMIN-NEXT: [[INDEX_EVL_NEXT]] = add i64 [[TMP13]], [[TMP0]]
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; ZVFBFMIN-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP13]]
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; ZVFBFMIN-NEXT: [[TMP7:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
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; ZVFBFMIN-NEXT: br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; ZVFBFMIN: [[MIDDLE_BLOCK]]:
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; ZVFBFMIN-NEXT: br label %[[EXIT:.*]]
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; ZVFBFMIN: [[EXIT]]:
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; ZVFBFMIN-NEXT: ret void
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;
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entry:
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br label %loop
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loop:
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%i = phi i64 [0, %entry], [%i.next, %loop]
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%a.gep = getelementptr bfloat, ptr %a, i64 %i
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%b.gep = getelementptr bfloat, ptr %b, i64 %i
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%x = load bfloat, ptr %a.gep
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%y = load bfloat, ptr %b.gep
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%z = fadd bfloat %x, %y
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store bfloat %z, ptr %a.gep
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%i.next = add i64 %i, 1
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%done = icmp eq i64 %i.next, %n
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br i1 %done, label %exit, label %loop
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exit:
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ret void
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}
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define void @vfwmaccbf16.vv(ptr noalias %a, ptr noalias %b, ptr noalias %c, i64 %n) {
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; NO-ZVFBFMIN-LABEL: define void @vfwmaccbf16.vv(
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; NO-ZVFBFMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], ptr noalias [[C:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
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; NO-ZVFBFMIN-NEXT: [[ENTRY:.*]]:
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; NO-ZVFBFMIN-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4
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; NO-ZVFBFMIN-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
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; NO-ZVFBFMIN: [[VECTOR_PH]]:
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; NO-ZVFBFMIN-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
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; NO-ZVFBFMIN-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
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; NO-ZVFBFMIN-NEXT: br label %[[VECTOR_BODY:.*]]
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; NO-ZVFBFMIN: [[VECTOR_BODY]]:
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; NO-ZVFBFMIN-NEXT: [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; NO-ZVFBFMIN-NEXT: [[TMP1:%.*]] = getelementptr bfloat, ptr [[A]], i64 [[TMP0]]
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; NO-ZVFBFMIN-NEXT: [[TMP2:%.*]] = getelementptr bfloat, ptr [[B]], i64 [[TMP0]]
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; NO-ZVFBFMIN-NEXT: [[TMP3:%.*]] = getelementptr float, ptr [[C]], i64 [[TMP0]]
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; NO-ZVFBFMIN-NEXT: [[WIDE_LOAD:%.*]] = load <4 x bfloat>, ptr [[TMP1]], align 2
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; NO-ZVFBFMIN-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x bfloat>, ptr [[TMP2]], align 2
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; NO-ZVFBFMIN-NEXT: [[WIDE_LOAD2:%.*]] = load <4 x float>, ptr [[TMP3]], align 4
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; NO-ZVFBFMIN-NEXT: [[TMP7:%.*]] = fpext <4 x bfloat> [[WIDE_LOAD]] to <4 x float>
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; NO-ZVFBFMIN-NEXT: [[TMP8:%.*]] = fpext <4 x bfloat> [[WIDE_LOAD1]] to <4 x float>
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; NO-ZVFBFMIN-NEXT: [[TMP9:%.*]] = call <4 x float> @llvm.fmuladd.v4f32(<4 x float> [[TMP7]], <4 x float> [[TMP8]], <4 x float> [[WIDE_LOAD2]])
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; NO-ZVFBFMIN-NEXT: store <4 x float> [[TMP9]], ptr [[TMP3]], align 4
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; NO-ZVFBFMIN-NEXT: [[INDEX_NEXT]] = add nuw i64 [[TMP0]], 4
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; NO-ZVFBFMIN-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; NO-ZVFBFMIN-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; NO-ZVFBFMIN: [[MIDDLE_BLOCK]]:
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; NO-ZVFBFMIN-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
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; NO-ZVFBFMIN-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
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; NO-ZVFBFMIN: [[SCALAR_PH]]:
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; NO-ZVFBFMIN-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
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; NO-ZVFBFMIN-NEXT: br label %[[LOOP:.*]]
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; NO-ZVFBFMIN: [[LOOP]]:
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; NO-ZVFBFMIN-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ]
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; NO-ZVFBFMIN-NEXT: [[A_GEP:%.*]] = getelementptr bfloat, ptr [[A]], i64 [[I]]
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; NO-ZVFBFMIN-NEXT: [[B_GEP:%.*]] = getelementptr bfloat, ptr [[B]], i64 [[I]]
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; NO-ZVFBFMIN-NEXT: [[C_GEP:%.*]] = getelementptr float, ptr [[C]], i64 [[I]]
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; NO-ZVFBFMIN-NEXT: [[X:%.*]] = load bfloat, ptr [[A_GEP]], align 2
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; NO-ZVFBFMIN-NEXT: [[Y:%.*]] = load bfloat, ptr [[B_GEP]], align 2
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; NO-ZVFBFMIN-NEXT: [[Z:%.*]] = load float, ptr [[C_GEP]], align 4
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; NO-ZVFBFMIN-NEXT: [[X_EXT:%.*]] = fpext bfloat [[X]] to float
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; NO-ZVFBFMIN-NEXT: [[Y_EXT:%.*]] = fpext bfloat [[Y]] to float
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; NO-ZVFBFMIN-NEXT: [[FMULADD:%.*]] = call float @llvm.fmuladd.f32(float [[X_EXT]], float [[Y_EXT]], float [[Z]])
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; NO-ZVFBFMIN-NEXT: store float [[FMULADD]], ptr [[C_GEP]], align 4
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; NO-ZVFBFMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1
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; NO-ZVFBFMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]]
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; NO-ZVFBFMIN-NEXT: br i1 [[DONE]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]]
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; NO-ZVFBFMIN: [[EXIT]]:
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; NO-ZVFBFMIN-NEXT: ret void
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;
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; ZVFBFMIN-LABEL: define void @vfwmaccbf16.vv(
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; ZVFBFMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], ptr noalias [[C:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
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; ZVFBFMIN-NEXT: [[ENTRY:.*:]]
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; ZVFBFMIN-NEXT: br label %[[VECTOR_PH:.*]]
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; ZVFBFMIN: [[VECTOR_PH]]:
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; ZVFBFMIN-NEXT: br label %[[VECTOR_BODY:.*]]
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; ZVFBFMIN: [[VECTOR_BODY]]:
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; ZVFBFMIN-NEXT: [[TMP6:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; ZVFBFMIN-NEXT: [[AVL:%.*]] = phi i64 [ [[N]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; ZVFBFMIN-NEXT: [[TMP11:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true)
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; ZVFBFMIN-NEXT: [[TMP7:%.*]] = getelementptr bfloat, ptr [[A]], i64 [[TMP6]]
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; ZVFBFMIN-NEXT: [[TMP8:%.*]] = getelementptr bfloat, ptr [[B]], i64 [[TMP6]]
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; ZVFBFMIN-NEXT: [[TMP9:%.*]] = getelementptr float, ptr [[C]], i64 [[TMP6]]
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; ZVFBFMIN-NEXT: [[WIDE_LOAD:%.*]] = call <vscale x 4 x bfloat> @llvm.vp.load.nxv4bf16.p0(ptr align 2 [[TMP7]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP11]])
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; ZVFBFMIN-NEXT: [[WIDE_LOAD1:%.*]] = call <vscale x 4 x bfloat> @llvm.vp.load.nxv4bf16.p0(ptr align 2 [[TMP8]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP11]])
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; ZVFBFMIN-NEXT: [[WIDE_LOAD2:%.*]] = call <vscale x 4 x float> @llvm.vp.load.nxv4f32.p0(ptr align 4 [[TMP9]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP11]])
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; ZVFBFMIN-NEXT: [[TMP13:%.*]] = fpext <vscale x 4 x bfloat> [[WIDE_LOAD]] to <vscale x 4 x float>
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; ZVFBFMIN-NEXT: [[TMP14:%.*]] = fpext <vscale x 4 x bfloat> [[WIDE_LOAD1]] to <vscale x 4 x float>
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; ZVFBFMIN-NEXT: [[TMP15:%.*]] = call <vscale x 4 x float> @llvm.fmuladd.nxv4f32(<vscale x 4 x float> [[TMP13]], <vscale x 4 x float> [[TMP14]], <vscale x 4 x float> [[WIDE_LOAD2]])
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; ZVFBFMIN-NEXT: call void @llvm.vp.store.nxv4f32.p0(<vscale x 4 x float> [[TMP15]], ptr align 4 [[TMP9]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP11]])
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; ZVFBFMIN-NEXT: [[TMP12:%.*]] = zext i32 [[TMP11]] to i64
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; ZVFBFMIN-NEXT: [[INDEX_EVL_NEXT]] = add i64 [[TMP12]], [[TMP6]]
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; ZVFBFMIN-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP12]]
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; ZVFBFMIN-NEXT: [[TMP10:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
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; ZVFBFMIN-NEXT: br i1 [[TMP10]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
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; ZVFBFMIN: [[MIDDLE_BLOCK]]:
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; ZVFBFMIN-NEXT: br label %[[EXIT:.*]]
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; ZVFBFMIN: [[EXIT]]:
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; ZVFBFMIN-NEXT: ret void
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;
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entry:
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br label %loop
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loop:
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%i = phi i64 [0, %entry], [%i.next, %loop]
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%a.gep = getelementptr bfloat, ptr %a, i64 %i
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%b.gep = getelementptr bfloat, ptr %b, i64 %i
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%c.gep = getelementptr float, ptr %c, i64 %i
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%x = load bfloat, ptr %a.gep
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%y = load bfloat, ptr %b.gep
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%z = load float, ptr %c.gep
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%x.ext = fpext bfloat %x to float
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%y.ext = fpext bfloat %y to float
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%fmuladd = call float @llvm.fmuladd.f32(float %x.ext, float %y.ext, float %z)
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store float %fmuladd, ptr %c.gep
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%i.next = add i64 %i, 1
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%done = icmp eq i64 %i.next, %n
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br i1 %done, label %exit, label %loop
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exit:
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ret void
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}
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