57 lines
2.1 KiB
LLVM
57 lines
2.1 KiB
LLVM
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; RUN: opt -basic-aa -gvn -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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; CHECK-LABEL: @foo(
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; CHECK: entry.end_crit_edge:
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; CHECK: %[[INDEX:[a-z0-9.]+]] = sext i32 %x to i64{{$}}
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; CHECK: %[[ADDRESS:[a-z0-9.]+]] = getelementptr [100 x i32], [100 x i32]* @G, i64 0, i64 %[[INDEX]]{{$}}
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; CHECK: %n.pre = load i32, i32* %[[ADDRESS]], align 4, !dbg [[N_LOC:![0-9]+]]
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; CHECK: br label %end
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; CHECK: then:
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; CHECK: store i32 %z
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; CHECK: end:
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; CHECK: %n = phi i32 [ %n.pre, %entry.end_crit_edge ], [ %z, %then ], !dbg [[N_LOC]]
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; CHECK: ret i32 %n
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; CHECK: [[N_LOC]] = !DILocation(line: 47, column: 1, scope: !{{.*}})
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@G = external global [100 x i32]
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define i32 @foo(i32 %x, i32 %z) !dbg !6 {
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entry:
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%tobool = icmp eq i32 %z, 0, !dbg !7
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br i1 %tobool, label %end, label %then, !dbg !7
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then:
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%i = sext i32 %x to i64, !dbg !8
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%p = getelementptr [100 x i32], [100 x i32]* @G, i64 0, i64 %i, !dbg !8
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store i32 %z, i32* %p, !dbg !8
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br label %end, !dbg !8
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end:
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%j = sext i32 %x to i64, !dbg !9
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%q = getelementptr [100 x i32], [100 x i32]* @G, i64 0, i64 %j, !dbg !10
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%n = load i32, i32* %q, !dbg !11
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ret i32 %n, !dbg !11
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}
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!llvm.module.flags = !{!0, !1, !2}
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!llvm.dbg.cu = !{!12}
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!0 = !{i32 2, !"Dwarf Version", i32 4}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = !{i32 1, !"PIC Level", i32 2}
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!3 = !{}
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!4 = !DISubroutineType(types: !3)
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!5 = !DIFile(filename: "a.cc", directory: "/tmp")
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!6 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 42, type: !4, isLocal: false, isDefinition: true, scopeLine: 43, flags: DIFlagPrototyped, isOptimized: false, unit: !12, retainedNodes: !3)
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!7 = !DILocation(line: 43, column: 1, scope: !6)
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!8 = !DILocation(line: 44, column: 1, scope: !6)
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!9 = !DILocation(line: 45, column: 1, scope: !6)
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!10 = !DILocation(line: 46, column: 1, scope: !6)
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!11 = !DILocation(line: 47, column: 1, scope: !6)
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!12 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",
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file: !5,
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isOptimized: true, flags: "-O2",
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splitDebugFilename: "abc.debug", emissionKind: 2)
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