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60 lines
2.4 KiB
LLVM
60 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -irce -S | FileCheck %s
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; Reduced from https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26832
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define void @scalar_after_vectorization_0() {
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; CHECK-LABEL: @scalar_after_vectorization_0(
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; CHECK-NEXT: outer.ph:
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; CHECK-NEXT: [[B4:%.*]] = sub i64 9223372036854775807, -9223372036854775808
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; CHECK-NEXT: [[B21:%.*]] = and i64 [[B4]], [[B4]]
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; CHECK-NEXT: [[B9:%.*]] = lshr i64 9223372036854775807, -1
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; CHECK-NEXT: br label [[OUTER_BODY:%.*]]
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; CHECK: outer.body:
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; CHECK-NEXT: [[I:%.*]] = phi i64 [ 1, [[OUTER_PH:%.*]] ], [ [[I_NEXT:%.*]], [[INNER_END:%.*]] ]
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; CHECK-NEXT: [[T0:%.*]] = mul nuw nsw i64 [[I]], undef
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; CHECK-NEXT: br label [[INNER_BODY:%.*]]
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; CHECK: inner.body:
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; CHECK-NEXT: [[J:%.*]] = phi i64 [ 1, [[OUTER_BODY]] ], [ [[T1:%.*]], [[INNER_BODY]] ]
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; CHECK-NEXT: [[T1]] = add nuw nsw i64 [[J]], [[T0]]
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; CHECK-NEXT: [[B3:%.*]] = mul i64 [[T1]], undef
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; CHECK-NEXT: [[B13:%.*]] = mul i64 [[B3]], 4294967296
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; CHECK-NEXT: [[C2:%.*]] = icmp slt i64 undef, [[B13]]
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; CHECK-NEXT: br i1 [[C2]], label [[INNER_BODY]], label [[INNER_END]]
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; CHECK: inner.end:
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; CHECK-NEXT: [[B16:%.*]] = urem i64 [[B4]], [[B9]]
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; CHECK-NEXT: [[I_NEXT]] = add i64 [[I]], [[B16]]
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; CHECK-NEXT: [[C:%.*]] = icmp ult i64 [[B21]], [[I_NEXT]]
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; CHECK-NEXT: br i1 [[C]], label [[OUTER_BODY]], label [[OUTER_END:%.*]]
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; CHECK: outer.end:
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; CHECK-NEXT: ret void
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;
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outer.ph:
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br label %outer.body
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outer.body: ; preds = %inner.end, %outer.ph
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%i = phi i64 [ 1, %outer.ph ], [ %i.next, %inner.end ]
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%t0 = mul nuw nsw i64 %i, undef
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br label %inner.body
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inner.body: ; preds = %inner.body, %outer.body
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%j = phi i64 [ 1, %outer.body ], [ %t1, %inner.body ]
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%t1 = add nuw nsw i64 %j, %t0
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%B3 = mul i64 %t1, undef
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%B13 = mul i64 %B3, 4294967296
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%C2 = icmp slt i64 undef, %B13
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br i1 %C2, label %inner.body, label %inner.end
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inner.end: ; preds = %inner.body
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%B4 = sub i64 9223372036854775807, -9223372036854775808
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%B21 = and i64 %B4, %B4
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%B9 = lshr i64 9223372036854775807, -1
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%B16 = urem i64 %B4, %B9
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%i.next = add i64 %i, %B16
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%C = icmp ult i64 %B21, %i.next
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br i1 %C, label %outer.body, label %outer.end
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outer.end: ; preds = %inner.end
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ret void
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}
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