derek.holloway
7502bf64a4
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23 lines
1.5 KiB
LLVM
23 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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; Reduced from https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65278
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define i32 @PR76234() {
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; CHECK-LABEL: 'PR76234'
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; CHECK-NEXT: Classifying expressions for: @PR76234
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; CHECK-NEXT: %B9 = shl i896 0, -264147265567832623176169892458258303259423663018060761063980354513336951278362429737208627943828593947337197496628564339441173779751342768625269489231469788454193341999502542084365758838213220526512116454105594202074014146375780869419198449383518238244769290448868999168
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; CHECK-NEXT: --> %B9 U: [0,1) S: [0,1)
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; CHECK-NEXT: %B39 = ashr i896 %B9, 1
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; CHECK-NEXT: --> %B39 U: [0,1) S: [0,1) Exits: <<Unknown>> LoopDispositions: { %1: Variant }
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; CHECK-NEXT: Determining loop execution counts for: @PR76234
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; CHECK-NEXT: Loop %1: <multiple exits> Unpredictable backedge-taken count.
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; CHECK-NEXT: Loop %1: Unpredictable constant max backedge-taken count.
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; CHECK-NEXT: Loop %1: Unpredictable symbolic max backedge-taken count.
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;
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%B9 = shl i896 0, -264147265567832623176169892458258303259423663018060761063980354513336951278362429737208627943828593947337197496628564339441173779751342768625269489231469788454193341999502542084365758838213220526512116454105594202074014146375780869419198449383518238244769290448868999168
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br label %1
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1:
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%B39 = ashr i896 %B9, 1
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br label %1
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}
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