5ea6a3fc6d
UF * VF is loop invariant and can be computed directly in the preheader. This prepares the code for #74761 and reduces the test changes.
78 lines
4.6 KiB
LLVM
78 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=loop-vectorize -riscv-v-vector-bits-min=128 -scalable-vectorization=on -force-target-instruction-cost=1 -S < %s | FileCheck %s
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target triple = "riscv64"
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define void @trip5_i8(ptr noalias nocapture noundef %dst, ptr noalias nocapture noundef readonly %src) #0 {
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; CHECK-LABEL: @trip5_i8(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 16
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; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 16
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; CHECK-NEXT: [[TMP4:%.*]] = sub i64 [[TMP3]], 1
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; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 5, [[TMP4]]
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; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
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; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
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; CHECK-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[TMP6:%.*]] = mul i64 [[TMP5]], 16
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP7:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP7]], i64 5)
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; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i64 [[TMP7]]
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; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i32 0
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; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP9]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
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; CHECK-NEXT: [[TMP10:%.*]] = shl <vscale x 16 x i8> [[WIDE_MASKED_LOAD]], shufflevector (<vscale x 16 x i8> insertelement (<vscale x 16 x i8> poison, i8 1, i64 0), <vscale x 16 x i8> poison, <vscale x 16 x i32> zeroinitializer)
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; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i64 [[TMP7]]
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; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i32 0
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; CHECK-NEXT: [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP12]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]], <vscale x 16 x i8> poison)
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; CHECK-NEXT: [[TMP13:%.*]] = add <vscale x 16 x i8> [[TMP10]], [[WIDE_MASKED_LOAD1]]
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; CHECK-NEXT: call void @llvm.masked.store.nxv16i8.p0(<vscale x 16 x i8> [[TMP13]], ptr [[TMP12]], i32 1, <vscale x 16 x i1> [[ACTIVE_LANE_MASK]])
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; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP6]]
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; CHECK-NEXT: br i1 true, label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[I_08:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i64 [[I_08]]
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; CHECK-NEXT: [[TMP14:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
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; CHECK-NEXT: [[MUL:%.*]] = shl i8 [[TMP14]], 1
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; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 [[I_08]]
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; CHECK-NEXT: [[TMP15:%.*]] = load i8, ptr [[ARRAYIDX1]], align 1
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; CHECK-NEXT: [[ADD:%.*]] = add i8 [[MUL]], [[TMP15]]
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; CHECK-NEXT: store i8 [[ADD]], ptr [[ARRAYIDX1]], align 1
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; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[I_08]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 5
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%i.08 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds i8, ptr %src, i64 %i.08
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%0 = load i8, ptr %arrayidx, align 1
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%mul = shl i8 %0, 1
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%arrayidx1 = getelementptr inbounds i8, ptr %dst, i64 %i.08
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%1 = load i8, ptr %arrayidx1, align 1
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%add = add i8 %mul, %1
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store i8 %add, ptr %arrayidx1, align 1
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%inc = add nuw nsw i64 %i.08, 1
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%exitcond.not = icmp eq i64 %inc, 5
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br i1 %exitcond.not, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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attributes #0 = { "target-features"="+v,+d" }
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