derek.holloway
7502bf64a4
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60 lines
2.7 KiB
LLVM
60 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -p=indvars -S | FileCheck %s
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;; When that when IndVarSimplify simplifies the rem to a cmp and select, we
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;; propagate the rem's source location to both the new instructions.
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define i32 @widget() !dbg !5 {
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; CHECK-LABEL: define i32 @widget(
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; CHECK-SAME: ) !dbg [[DBG5:![0-9]+]] {
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; CHECK-NEXT: [[BB:.*:]]
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; CHECK-NEXT: br label %[[BB1:.*]]
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; CHECK: [[BB1_LOOPEXIT:.*]]:
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; CHECK-NEXT: br label %[[BB1]]
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; CHECK: [[BB1]]:
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; CHECK-NEXT: br label %[[BB2:.*]]
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; CHECK: [[BB2]]:
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; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ 0, %[[BB1]] ], [ [[ADD:%.*]], %[[BB2]] ]
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; CHECK-NEXT: [[ADD]] = add nuw nsw i32 1, [[PHI]]
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; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[ADD]], 3, !dbg [[DBG8:![0-9]+]]
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; CHECK-NEXT: [[IV_REM:%.*]] = select i1 [[TMP0]], i32 0, i32 [[ADD]], !dbg [[DBG8]]
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; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 [[IV_REM]] to i64
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; CHECK-NEXT: br i1 false, label %[[BB2]], label %[[BB1_LOOPEXIT]]
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;
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bb:
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br label %bb1
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bb1: ; preds = %bb2, %bb
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br label %bb2
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bb2: ; preds = %bb2, %bb1
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%phi = phi i32 [ 0, %bb1 ], [ %add, %bb2 ]
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%add = add i32 1, %phi
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%urem = urem i32 %add, 3, !dbg !8
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%zext = zext i32 %urem to i64
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%icmp = icmp ult i32 %phi, 2
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br i1 %icmp, label %bb2, label %bb1
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}
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!2, !3}
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!llvm.module.flags = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
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!1 = !DIFile(filename: "llvm/test/Transforms/IndVarSimplify/debugloc-rem-subst.ll", directory: "/")
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!2 = !{i32 8}
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!3 = !{i32 0}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
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!6 = !DISubroutineType(types: !7)
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!7 = !{}
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!8 = !DILocation(line: 1, column: 1, scope: !5)
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;.
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; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: [[META1:![0-9]+]], producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
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; CHECK: [[META1]] = !DIFile(filename: "{{.*}}debugloc-rem-subst.ll", directory: {{.*}})
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; CHECK: [[DBG5]] = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: [[META1]], line: 1, type: [[META6:![0-9]+]], scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]])
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; CHECK: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
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; CHECK: [[META7]] = !{}
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; CHECK: [[DBG8]] = !DILocation(line: 1, column: 1, scope: [[DBG5]])
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;.
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