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| ; REQUIRES: object-emission
; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s \
; RUN: | llvm-dwarfdump -v -debug-info - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V4 %s
; RUN: llc -mtriple=x86_64-linux -dwarf-version=3 -O0 -filetype=obj < %s \
; RUN: | llvm-dwarfdump -v -debug-info - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V3 %s
; Check that we emit DW_TAG_lexical_block and that it has the right encoding
; depending on the dwarf version.
; CHECK: DW_TAG_lexical_block
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_low_pc [DW_FORM_addr]
; CHECK-NOT: DW_TAG
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; Test case produced from:
; void b() {
; if (int i = 3)
; return;
; }
; Function Attrs: nounwind uwtable
define void @_Z1bv() #0 !dbg !4 {
entry:
%i = alloca i32, align 4
call void @llvm.dbg.declare(metadata i32* %i, metadata !11, metadata !DIExpression()), !dbg !14
store i32 3, i32* %i, align 4, !dbg !14
%0 = load i32, i32* %i, align 4, !dbg !14
%tobool = icmp ne i32 %0, 0, !dbg !14
br i1 %tobool, label %if.then, label %if.end, !dbg !14
if.then: ; preds = %entry
br label %if.end, !dbg !15
if.end: ; preds = %if.then, %entry
ret void, !dbg !16
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { nounwind uwtable "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" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!8, !9}
!llvm.ident = !{!10}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "lexical_block.cpp", directory: "/tmp/dbginfo")
!2 = !{}
!4 = distinct !DISubprogram(name: "b", linkageName: "_Z1bv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
!5 = !DIFile(filename: "lexical_block.cpp", directory: "/tmp/dbginfo")
!6 = !DISubroutineType(types: !7)
!7 = !{null}
!8 = !{i32 2, !"Dwarf Version", i32 4}
!9 = !{i32 1, !"Debug Info Version", i32 3}
!10 = !{!"clang version 3.5.0 "}
!11 = !DILocalVariable(name: "i", line: 2, scope: !12, file: !5, type: !13)
!12 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!14 = !DILocation(line: 2, scope: !12)
!15 = !DILocation(line: 3, scope: !12)
!16 = !DILocation(line: 4, scope: !4)
|