84 lines
3.4 KiB
LLVM
84 lines
3.4 KiB
LLVM
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; RUN: opt -S -gvn-hoist < %s | FileCheck %s
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; Hoisted inlinable calls need to have accurate scope information, but we're
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; allowed to erase the line information.
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source_filename = "t.c"
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24215"
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; Function Attrs: noinline nounwind readnone uwtable
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define float @fabsf(float %f) #0 !dbg !7 {
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entry:
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%conv = fpext float %f to double, !dbg !9
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%call = call double @fabs(double %conv) #1, !dbg !10
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%conv1 = fptrunc double %call to float, !dbg !11
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ret float %conv1, !dbg !12
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}
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; Function Attrs: nounwind readnone
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declare double @fabs(double) #1
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; Function Attrs: noinline nounwind uwtable
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define void @hoistit(i32 %cond, float %f) #2 !dbg !13 {
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entry:
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%tobool = icmp ne i32 %cond, 0, !dbg !14
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br i1 %tobool, label %if.then, label %if.else, !dbg !14
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if.then: ; preds = %entry
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%call = call float @fabsf(float %f) #1, !dbg !15
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call void @useit1(float %call), !dbg !16
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br label %if.end, !dbg !18
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if.else: ; preds = %entry
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%call1 = call float @fabsf(float %f) #1, !dbg !19
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call void @useit2(float %call1), !dbg !20
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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ret void, !dbg !21
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}
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; CHECK-LABEL: define void @hoistit
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; CHECK-SAME: !dbg ![[sp_hoistit:[0-9]+]]
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; CHECK: call float @fabsf(float %f) {{.*}} !dbg ![[dbgloc:[0-9]+]]
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; CHECK: br i1 %tobool, label %if.then, label %if.else
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; CHECK: ![[sp_hoistit]] = distinct !DISubprogram(name: "hoistit", {{.*}})
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; CHECK: ![[dbgloc]] = !DILocation({{.*}}, scope: ![[sp_hoistit]])
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declare void @useit1(float)
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declare void @useit2(float)
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attributes #0 = { noinline nounwind readnone uwtable }
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attributes #1 = { nounwind readnone willreturn }
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attributes #2 = { noinline nounwind uwtable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
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!1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm\5Cbuild")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"PIC Level", i32 2}
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!6 = !{!"clang version 5.0.0 "}
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!7 = distinct !DISubprogram(name: "fabsf", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !2)
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!9 = !DILocation(line: 5, column: 22, scope: !7)
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!10 = !DILocation(line: 5, column: 17, scope: !7)
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!11 = !DILocation(line: 5, column: 10, scope: !7)
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!12 = !DILocation(line: 5, column: 3, scope: !7)
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!13 = distinct !DISubprogram(name: "hoistit", scope: !1, file: !1, line: 7, type: !8, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!14 = !DILocation(line: 8, column: 7, scope: !13)
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!15 = !DILocation(line: 9, column: 12, scope: !13)
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!16 = !DILocation(line: 9, column: 5, scope: !17)
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!17 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 1)
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!18 = !DILocation(line: 10, column: 3, scope: !13)
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!19 = !DILocation(line: 11, column: 12, scope: !13)
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!20 = !DILocation(line: 11, column: 5, scope: !17)
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!21 = !DILocation(line: 13, column: 1, scope: !13)
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