79 lines
2.9 KiB
LLVM
79 lines
2.9 KiB
LLVM
; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s --match-full-lines
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; Make sure we reset the debug location when folding instructions.
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; CHECK-LABEL: define {{.+}} @patatino({{.+}}
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; CHECK: [[VAL:%.*]] = and i32 %c2, %k
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; CHECK-NEXT: [[VAL2:%.*]] icmp eq i32 [[VAL]], 0
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declare i32 @bar(...)
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define i32 @patatino(i32 %k, i32 %c1, i32 %c2) !dbg !6 {
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%1 = and i32 %c1, %k, !dbg !8
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%2 = icmp eq i32 %1, 0, !dbg !9
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br i1 %2, label %8, label %3, !dbg !10
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3:
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%4 = and i32 %c2, %k, !dbg !11
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%5 = icmp eq i32 %4, 0, !dbg !12
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br i1 %5, label %8, label %6, !dbg !13
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6:
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%7 = tail call i32 (...) @bar(), !dbg !14
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br label %8, !dbg !15
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8:
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ret i32 undef, !dbg !16
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}
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; All instructions involved in folding have the same !dbg location. Make sure
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; they are preserved.
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define void @dbg_all_equal(i32 %k, i32 %c1, i32 %c2) !dbg !17 {
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; CHECK-LABEL: define {{.+}} @dbg_all_equal({{.+}}
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; CHECK-NEXT: [[A1:%[a-z0-9]+]] = and i32 %c1, %k, !dbg [[DBG:![0-9]+]]
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; CHECK-NEXT: [[C1:%[a-z0-9]+]] = icmp eq i32 [[A1]], 0, !dbg [[DBG]]
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; CHECK-NEXT: [[A2:%[a-z0-9]+]] = and i32 %c2, %k, !dbg [[DBG]]
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; CHECK-NEXT: [[C2:%[a-z0-9]+]] = icmp eq i32 [[A2]], 0, !dbg [[DBG]]
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; CHECK-NEXT: [[OR:%[.a-z0-9]+]] = select i1 [[C1]], i1 true, i1 [[C2]], !dbg [[DBG]]
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; CHECK-NEXT: br i1 [[OR]], label {{.+}}, label {{.+}}, !dbg [[DBG]]
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;
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%1 = and i32 %c1, %k, !dbg !18
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%2 = icmp eq i32 %1, 0, !dbg !18
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br i1 %2, label %8, label %3, !dbg !18
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3:
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%4 = and i32 %c2, %k, !dbg !18
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%5 = icmp eq i32 %4, 0, !dbg !18
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br i1 %5, label %8, label %6, !dbg !18
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6:
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%7 = tail call i32 (...) @bar(), !dbg !18
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br label %8, !dbg !18
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8:
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ret void
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}
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!3, !4}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "a.ll", directory: "/")
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!2 = !{}
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!3 = !{i32 9}
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!4 = !{i32 0}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "patatino", linkageName: "patatino", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!7 = !DISubroutineType(types: !2)
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!8 = !DILocation(line: 1, column: 1, scope: !6)
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!9 = !DILocation(line: 2, column: 1, scope: !6)
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!10 = !DILocation(line: 3, column: 1, scope: !6)
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!11 = !DILocation(line: 4, column: 1, scope: !6)
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!12 = !DILocation(line: 5, column: 1, scope: !6)
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!13 = !DILocation(line: 6, column: 1, scope: !6)
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!14 = !DILocation(line: 7, column: 1, scope: !6)
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!15 = !DILocation(line: 8, column: 1, scope: !6)
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!16 = !DILocation(line: 9, column: 1, scope: !6)
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!17 = distinct !DISubprogram(name: "dbg_all_equal", linkageName: "dbg_all_equal", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!18 = !DILocation(line: 10, column: 10, scope: !17)
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