derek.holloway
7502bf64a4
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127 lines
7.0 KiB
LLVM
127 lines
7.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=on -force-target-supports-scalable-vectors -S | FileCheck %s
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define void @trunc_minimal_bitwidth(ptr %bptr, ptr noalias %hptr, i32 %val, i64 %N) {
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; CHECK-LABEL: @trunc_minimal_bitwidth(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
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; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], [[TMP1]]
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; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP0]], 2
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; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP3]]
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; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[VAL:%.*]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = trunc <vscale x 4 x i32> [[BROADCAST_SPLAT]] to <vscale x 4 x i16>
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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: [[TMP5:%.*]] = getelementptr inbounds i16, ptr [[HPTR:%.*]], i64 [[INDEX]]
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; CHECK-NEXT: store <vscale x 4 x i16> [[TMP4]], ptr [[TMP5]], align 2
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
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; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
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; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], 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: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[CONV21:%.*]] = trunc i32 [[VAL]] to i16
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; CHECK-NEXT: [[ARRAYIDX23:%.*]] = getelementptr inbounds i16, ptr [[HPTR]], i64 [[INDVARS_IV]]
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; CHECK-NEXT: store i16 [[CONV21]], ptr [[ARRAYIDX23]], align 2
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]]
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
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; CHECK: for.exit:
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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:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%conv21 = trunc i32 %val to i16
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%arrayidx23 = getelementptr inbounds i16, ptr %hptr, i64 %indvars.iv
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store i16 %conv21, ptr %arrayidx23, align 2
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %N
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br i1 %exitcond.not, label %for.exit, label %for.body, !llvm.loop !0
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for.exit:
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ret void
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}
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define void @trunc_minimal_bitwidths_shufflevector (ptr %p, i32 %arg1, i64 %len) {
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; CHECK-LABEL: @trunc_minimal_bitwidths_shufflevector(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2
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; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[LEN:%.*]], [[TMP1]]
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; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP0]], 2
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; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[LEN]], [[TMP3]]
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; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[LEN]], [[N_MOD_VF]]
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[ARG1:%.*]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = trunc <vscale x 4 x i32> [[BROADCAST_SPLAT]] to <vscale x 4 x i8>
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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: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[INDEX]]
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; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i8>, ptr [[TMP5]], align 1
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; CHECK-NEXT: [[TMP6:%.*]] = xor <vscale x 4 x i8> [[WIDE_LOAD]], [[TMP4]]
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; CHECK-NEXT: [[TMP7:%.*]] = mul <vscale x 4 x i8> [[TMP6]], [[WIDE_LOAD]]
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; CHECK-NEXT: store <vscale x 4 x i8> [[TMP7]], ptr [[TMP5]], align 1
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
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; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[LEN]], [[N_VEC]]
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; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], 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: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[INDVARS_IV]]
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; CHECK-NEXT: [[TMP11:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
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; CHECK-NEXT: [[CONV:%.*]] = zext i8 [[TMP11]] to i32
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; CHECK-NEXT: [[CONV17:%.*]] = xor i32 [[CONV]], [[ARG1]]
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; CHECK-NEXT: [[MUL18:%.*]] = mul nuw nsw i32 [[CONV17]], [[CONV]]
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; CHECK-NEXT: [[CONV19:%.*]] = trunc i32 [[MUL18]] to i8
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; CHECK-NEXT: store i8 [[CONV19]], ptr [[ARRAYIDX]], align 1
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[LEN]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
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; CHECK: for.exit:
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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:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i8, ptr %p, i64 %indvars.iv
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%0 = load i8, ptr %arrayidx
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%conv = zext i8 %0 to i32
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%conv17 = xor i32 %conv, %arg1
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%mul18 = mul nuw nsw i32 %conv17, %conv
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%conv19 = trunc i32 %mul18 to i8
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store i8 %conv19, ptr %arrayidx
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, %len
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br i1 %exitcond, label %for.exit, label %for.body, !llvm.loop !0
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for.exit:
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ret void
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}
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!0 = !{!0, !1, !2}
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!1 = !{!"llvm.loop.vectorize.width", i32 4}
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!2 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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