forked from OSchip/llvm-project
87 lines
3.3 KiB
LLVM
87 lines
3.3 KiB
LLVM
; ModuleID = 'formal_parameter.c'
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
;
|
|
; From (clang -g -c -O1):
|
|
;
|
|
; int lookup(int* map);
|
|
; int verify(int val);
|
|
; void foo(int map)
|
|
; {
|
|
; lookup(&map);
|
|
; if (!verify(map)) { }
|
|
; }
|
|
;
|
|
; RUN: opt %s -O2 -S -o %t
|
|
; RUN: cat %t | FileCheck --check-prefix=LOWERING %s
|
|
; RUN: llc -filetype=obj %t -o - | llvm-dwarfdump -debug-info - | FileCheck %s
|
|
; Test that we only emit only one DW_AT_formal_parameter "map" for this function.
|
|
; rdar://problem/14874886
|
|
;
|
|
; CHECK: DW_TAG_formal_parameter
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}}map
|
|
; CHECK-NOT: DW_AT_name {{.*}}map
|
|
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo(i32 %map) #0 !dbg !4 {
|
|
entry:
|
|
%map.addr = alloca i32, align 4
|
|
store i32 %map, i32* %map.addr, align 4, !tbaa !15
|
|
call void @llvm.dbg.declare(metadata i32* %map.addr, metadata !10, metadata !DIExpression()), !dbg !14
|
|
%call = call i32 (i32*, ...) bitcast (i32 (...)* @lookup to i32 (i32*, ...)*)(i32* %map.addr) #3, !dbg !19
|
|
; Ensure that all dbg intrinsics have the same scope after
|
|
; LowerDbgDeclare is finished with them.
|
|
;
|
|
; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC:.*]]
|
|
; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
|
|
; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
|
|
%0 = load i32, i32* %map.addr, align 4, !dbg !20, !tbaa !15
|
|
%call1 = call i32 (i32, ...) bitcast (i32 (...)* @verify to i32 (i32, ...)*)(i32 %0) #3, !dbg !20
|
|
ret void, !dbg !22
|
|
}
|
|
|
|
; LOWERING: ![[SCOPE:[0-9]+]] = distinct !DISubprogram(name: "foo",
|
|
; LOWERING: ![[LOC]] = !DILocation(line: 0, scope: ![[SCOPE]]
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
declare i32 @lookup(...)
|
|
|
|
declare i32 @verify(...)
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind ssp uwtable }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #3 = { nounwind }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!11, !12}
|
|
!llvm.ident = !{!13}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "formal_parameter.c", directory: "")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !9)
|
|
!5 = !DIFile(filename: "formal_parameter.c", directory: "")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{null, !8}
|
|
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!9 = !{!10}
|
|
!10 = !DILocalVariable(name: "map", line: 1, arg: 1, scope: !4, file: !5, type: !8)
|
|
!11 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!12 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!13 = !{!"clang version 3.5.0 "}
|
|
!14 = !DILocation(line: 1, scope: !4)
|
|
!15 = !{!16, !16, i64 0}
|
|
!16 = !{!"int", !17, i64 0}
|
|
!17 = !{!"omnipotent char", !18, i64 0}
|
|
!18 = !{!"Simple C/C++ TBAA"}
|
|
!19 = !DILocation(line: 3, scope: !4)
|
|
!20 = !DILocation(line: 4, scope: !21)
|
|
!21 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !4)
|
|
!22 = !DILocation(line: 5, scope: !4)
|