28ac873bcb
The compiler should not ignore UndefValue when gathering the scalars, otherwise the resulting code may be less defined than the original one. Also, grouped scalars to insert them at first to reduce the analysis in further passes. Differential Revision: https://reviews.llvm.org/D105275
101 lines
4.0 KiB
LLVM
101 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -slp-vectorizer -S | FileCheck %s
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target triple = "aarch64-unknown-linux-gnu"
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@d = internal unnamed_addr global i32 5, align 4
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define dso_local void @l() local_unnamed_addr {
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; CHECK-LABEL: @l(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i16> [ undef, [[BB:%.*]] ], [ [[TMP11:%.*]], [[BB25:%.*]] ]
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; CHECK-NEXT: br i1 undef, label [[BB3:%.*]], label [[BB11:%.*]]
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; CHECK: bb3:
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; CHECK-NEXT: [[I4:%.*]] = zext i1 undef to i32
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; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i16> [[TMP0]], undef
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt <2 x i16> [[TMP1]], <i16 8, i16 8>
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; CHECK-NEXT: [[TMP3:%.*]] = zext <2 x i1> [[TMP2]] to <2 x i32>
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; CHECK-NEXT: br label [[BB25]]
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; CHECK: bb11:
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; CHECK-NEXT: [[I12:%.*]] = zext i1 undef to i32
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; CHECK-NEXT: [[TMP4:%.*]] = xor <2 x i16> [[TMP0]], undef
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; CHECK-NEXT: [[TMP5:%.*]] = sext <2 x i16> [[TMP4]] to <2 x i64>
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; CHECK-NEXT: [[TMP6:%.*]] = icmp ule <2 x i64> undef, [[TMP5]]
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; CHECK-NEXT: [[TMP7:%.*]] = zext <2 x i1> [[TMP6]] to <2 x i32>
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; CHECK-NEXT: [[TMP8:%.*]] = icmp ult <2 x i32> undef, [[TMP7]]
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; CHECK-NEXT: [[TMP9:%.*]] = zext <2 x i1> [[TMP8]] to <2 x i32>
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; CHECK-NEXT: br label [[BB25]]
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; CHECK: bb25:
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; CHECK-NEXT: [[I28:%.*]] = phi i32 [ [[I12]], [[BB11]] ], [ [[I4]], [[BB3]] ]
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; CHECK-NEXT: [[TMP10:%.*]] = phi <2 x i32> [ [[TMP9]], [[BB11]] ], [ [[TMP3]], [[BB3]] ]
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; CHECK-NEXT: [[TMP11]] = phi <2 x i16> [ [[TMP4]], [[BB11]] ], [ [[TMP1]], [[BB3]] ]
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; CHECK-NEXT: [[TMP12:%.*]] = trunc <2 x i32> [[TMP10]] to <2 x i8>
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; CHECK-NEXT: [[TMP13:%.*]] = extractelement <2 x i8> [[TMP12]], i32 0
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; CHECK-NEXT: [[TMP14:%.*]] = zext i8 [[TMP13]] to i32
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; CHECK-NEXT: [[I31:%.*]] = and i32 undef, [[TMP14]]
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; CHECK-NEXT: [[TMP15:%.*]] = extractelement <2 x i8> [[TMP12]], i32 1
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; CHECK-NEXT: [[TMP16:%.*]] = zext i8 [[TMP15]] to i32
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; CHECK-NEXT: [[I32:%.*]] = and i32 [[I31]], [[TMP16]]
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; CHECK-NEXT: [[I33:%.*]] = and i32 [[I32]], [[I28]]
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; CHECK-NEXT: br i1 undef, label [[BB34:%.*]], label [[BB1]]
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; CHECK: bb34:
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; CHECK-NEXT: [[I35:%.*]] = phi i32 [ [[I33]], [[BB25]] ]
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; CHECK-NEXT: br label [[BB36:%.*]]
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; CHECK: bb36:
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; CHECK-NEXT: store i32 [[I35]], i32* @d, align 4
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; CHECK-NEXT: ret void
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;
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bb:
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br label %bb1
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bb1: ; preds = %bb25, %bb
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%i = phi i16 [ undef, %bb ], [ %i29, %bb25 ]
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%i2 = phi i16 [ undef, %bb ], [ %i30, %bb25 ]
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br i1 undef, label %bb3, label %bb11
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bb3: ; preds = %bb1
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%i4 = zext i1 undef to i32
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%i5 = xor i16 %i2, undef
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%i6 = icmp ugt i16 %i5, 8
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%i7 = zext i1 %i6 to i32
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%i8 = xor i16 %i, undef
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%i9 = icmp ugt i16 %i8, 8
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%i10 = zext i1 %i9 to i32
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br label %bb25
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bb11: ; preds = %bb1
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%i12 = zext i1 undef to i32
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%i13 = xor i16 %i2, undef
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%i14 = sext i16 %i13 to i64
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%i15 = icmp ule i64 undef, %i14
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%i16 = zext i1 %i15 to i32
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%i17 = icmp ult i32 undef, %i16
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%i18 = zext i1 %i17 to i32
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%i19 = xor i16 %i, undef
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%i20 = sext i16 %i19 to i64
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%i21 = icmp ule i64 undef, %i20
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%i22 = zext i1 %i21 to i32
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%i23 = icmp ult i32 undef, %i22
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%i24 = zext i1 %i23 to i32
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br label %bb25
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bb25: ; preds = %bb11, %bb3
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%i26 = phi i32 [ %i24, %bb11 ], [ %i10, %bb3 ]
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%i27 = phi i32 [ %i18, %bb11 ], [ %i7, %bb3 ]
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%i28 = phi i32 [ %i12, %bb11 ], [ %i4, %bb3 ]
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%i29 = phi i16 [ %i19, %bb11 ], [ %i8, %bb3 ]
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%i30 = phi i16 [ %i13, %bb11 ], [ %i5, %bb3 ]
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%i31 = and i32 undef, %i26
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%i32 = and i32 %i31, %i27
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%i33 = and i32 %i32, %i28
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br i1 undef, label %bb34, label %bb1
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bb34: ; preds = %bb25
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%i35 = phi i32 [ %i33, %bb25 ]
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br label %bb36
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bb36: ; preds = %bb34
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store i32 %i35, i32* @d, align 4
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ret void
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}
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