73 lines
3.3 KiB
LLVM
73 lines
3.3 KiB
LLVM
; RUN: opt < %s -add-discriminators -S | FileCheck %s
|
|
; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s
|
|
|
|
; Discriminator support for diamond-shaped CFG.:
|
|
; #1 void bar(int);
|
|
; #2
|
|
; #3 void foo(int i) {
|
|
; #4 if (i > 10)
|
|
; #5 bar(5); else bar(3);
|
|
; #6 }
|
|
|
|
; bar(5): discriminator 0
|
|
; bar(3): discriminator 2
|
|
|
|
; Function Attrs: uwtable
|
|
define void @_Z3fooi(i32 %i) #0 !dbg !4 {
|
|
%1 = alloca i32, align 4
|
|
store i32 %i, i32* %1, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %1, metadata !11, metadata !12), !dbg !13
|
|
%2 = load i32, i32* %1, align 4, !dbg !14
|
|
%3 = icmp sgt i32 %2, 10, !dbg !16
|
|
br i1 %3, label %4, label %5, !dbg !17
|
|
|
|
; <label>:4 ; preds = %0
|
|
call void @_Z3bari(i32 5), !dbg !18
|
|
br label %6, !dbg !18
|
|
|
|
; <label>:5 ; preds = %0
|
|
call void @_Z3bari(i32 3), !dbg !19
|
|
; CHECK: call void @_Z3bari(i32 3), !dbg ![[ELSE:[0-9]+]]
|
|
br label %6
|
|
|
|
; <label>:6 ; preds = %5, %4
|
|
ret void, !dbg !20
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
declare void @_Z3bari(i32) #2
|
|
|
|
attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!8, !9}
|
|
!llvm.ident = !{!10}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 253273)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
|
|
!1 = !DIFile(filename: "a.cc", directory: "/tmp")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
|
|
!5 = !DISubroutineType(types: !6)
|
|
!6 = !{null, !7}
|
|
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!8 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!10 = !{!"clang version 3.8.0 (trunk 253273)"}
|
|
!11 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 3, type: !7)
|
|
!12 = !DIExpression()
|
|
!13 = !DILocation(line: 3, column: 14, scope: !4)
|
|
!14 = !DILocation(line: 4, column: 7, scope: !15)
|
|
!15 = distinct !DILexicalBlock(scope: !4, file: !1, line: 4, column: 7)
|
|
!16 = !DILocation(line: 4, column: 9, scope: !15)
|
|
!17 = !DILocation(line: 4, column: 7, scope: !4)
|
|
!18 = !DILocation(line: 5, column: 5, scope: !15)
|
|
!19 = !DILocation(line: 5, column: 18, scope: !15)
|
|
!20 = !DILocation(line: 6, column: 1, scope: !4)
|
|
|
|
; CHECK: ![[ELSE]] = !DILocation(line: 5, column: 18, scope: ![[ELSEBLOCK:[0-9]+]])
|
|
; CHECK: ![[ELSEBLOCK]] = !DILexicalBlockFile({{.*}} discriminator: 2)
|