forked from OSchip/llvm-project
86 lines
3.7 KiB
LLVM
86 lines
3.7 KiB
LLVM
; RUN: llc -verify-machineinstrs -filetype=obj -mtriple=aarch64-- \
|
|
; RUN: -enable-machine-outliner < %s | llvm-dwarfdump - | FileCheck %s
|
|
|
|
; Ensure that the MachineOutliner produces valid DWARF when it creates outlined
|
|
; functions. Check that the outlined function has a subprogram, and that the
|
|
; expected DWARF attributes are present.
|
|
|
|
; The outlined function appears after bar. Skip past the functions we don't
|
|
; care about.
|
|
; CHECK: DW_TAG_compile_unit
|
|
; CHECK-DAG: DW_AT_name ("foo")
|
|
; CHECK-DAG: DW_AT_name ("p")
|
|
|
|
; Check the high address of bar. This is one past the end of bar. It should be
|
|
; the beginning of the outlined function.
|
|
; CHECK: DW_AT_high_pc ([[ONE_PAST_BAR:0x[a-f0-9]+]])
|
|
; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29)
|
|
; CHECK-NEXT: DW_AT_name ("bar")
|
|
|
|
; Check the outlined function's DWARF.
|
|
; CHECK-DAG: DW_TAG_subprogram
|
|
; CHECK-NEXT: DW_AT_low_pc ([[ONE_PAST_BAR]])
|
|
; CHECK-NEXT: DW_AT_high_pc (0x{{[0-9a-f]+}})
|
|
; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29)
|
|
; CHECK-NEXT: DW_AT_MIPS_linkage_name ("[[NAME:OUTLINED_FUNCTION_[0-9]+]]")
|
|
; CHECK-NEXT: DW_AT_name ("[[NAME]]")
|
|
; CHECK-NEXT: DW_AT_artificial (0x01)
|
|
; CHECK-NEXT: DW_AT_external (0x01)
|
|
|
|
define void @foo() #0 !dbg !8 {
|
|
entry:
|
|
%p = alloca i32*, align 8
|
|
call void @llvm.dbg.declare(metadata i32** %p, metadata !11, metadata !DIExpression()), !dbg !14
|
|
%0 = load i32*, i32** %p, align 8, !dbg !15
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !15
|
|
store i32* %incdec.ptr, i32** %p, align 8, !dbg !15
|
|
call void @foo(), !dbg !16
|
|
ret void, !dbg !17
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
define void @bar() #0 !dbg !18 {
|
|
entry:
|
|
%p = alloca i32*, align 8
|
|
call void @llvm.dbg.declare(metadata i32** %p, metadata !19, metadata !DIExpression()), !dbg !20
|
|
%0 = load i32*, i32** %p, align 8, !dbg !21
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !21
|
|
store i32* %incdec.ptr, i32** %p, align 8, !dbg !21
|
|
call void @foo(), !dbg !22
|
|
ret void, !dbg !23
|
|
}
|
|
|
|
attributes #0 = { nounwind ssp uwtable "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" }
|
|
attributes #1 = { nounwind readnone speculatable }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4, !5, !6}
|
|
!llvm.ident = !{!7}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
|
|
!1 = !DIFile(filename: "something.c", directory: "somewhere")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = !{i32 1, !"wchar_size", i32 4}
|
|
!6 = !{i32 7, !"PIC Level", i32 2}
|
|
!7 = !{!"clang"}
|
|
!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
|
|
!9 = !DISubroutineType(types: !10)
|
|
!10 = !{null}
|
|
!11 = !DILocalVariable(name: "p", scope: !8, file: !1, line: 2, type: !12)
|
|
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
|
|
!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!14 = !DILocation(line: 2, column: 8, scope: !8)
|
|
!15 = !DILocation(line: 3, column: 4, scope: !8)
|
|
!16 = !DILocation(line: 4, column: 3, scope: !8)
|
|
!17 = !DILocation(line: 5, column: 1, scope: !8)
|
|
!18 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 7, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
|
|
!19 = !DILocalVariable(name: "p", scope: !18, file: !1, line: 9, type: !12)
|
|
!20 = !DILocation(line: 9, column: 8, scope: !18)
|
|
!21 = !DILocation(line: 10, column: 4, scope: !18)
|
|
!22 = !DILocation(line: 11, column: 3, scope: !18)
|
|
!23 = !DILocation(line: 12, column: 1, scope: !18)
|
|
|