You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
5.0 KiB
115 lines
5.0 KiB
4 months ago
|
; RUN: llc < %s | FileCheck %s --check-prefix=ASM
|
||
|
|
; RUN: llc < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF
|
||
|
|
|
||
|
|
; Values in registers should be clobbered by calls, which use a regmask instead
|
||
|
|
; of individual register def operands.
|
||
|
|
|
||
|
|
; ASM: main: # @main
|
||
|
|
; ASM: #DEBUG_VALUE: main:argc <- $ecx
|
||
|
|
; ASM: movl $1, x(%rip)
|
||
|
|
; ASM: callq clobber
|
||
|
|
; ASM-NEXT: [[argc_range_end:.Ltmp[0-9]+]]:
|
||
|
|
; ASM: #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $ecx
|
||
|
|
|
||
|
|
; argc is the first debug location.
|
||
|
|
; ASM: .Ldebug_loc1:
|
||
|
|
; ASM-NEXT: .quad .Lfunc_begin0-.Lfunc_begin0
|
||
|
|
; ASM-NEXT: .quad [[argc_range_end]]-.Lfunc_begin0
|
||
|
|
; ASM-NEXT: .short 1 # Loc expr size
|
||
|
|
; ASM-NEXT: .byte 82 # super-register DW_OP_reg2
|
||
|
|
|
||
|
|
; argc is the first formal parameter.
|
||
|
|
; DWARF: .debug_info contents:
|
||
|
|
; DWARF: DW_TAG_formal_parameter
|
||
|
|
; DWARF-NEXT: DW_AT_location ({{0x.*}}
|
||
|
|
; DWARF-NEXT: [0x0000000000000000, 0x0000000000000013): DW_OP_reg2 RCX
|
||
|
|
; DWARF-NEXT: [0x0000000000000013, 0x0000000000000043): DW_OP_GNU_entry_value(DW_OP_reg2 RCX), DW_OP_stack_value
|
||
|
|
; DWARF-NEXT: DW_AT_name ("argc")
|
||
|
|
|
||
|
|
; ModuleID = 't.cpp'
|
||
|
|
source_filename = "test/DebugInfo/X86/dbg-value-regmask-clobber.ll"
|
||
|
|
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-pc-windows-msvc18.0.0"
|
||
|
|
|
||
|
|
@x = common global i32 0, align 4, !dbg !0
|
||
|
|
|
||
|
|
; Function Attrs: nounwind uwtable
|
||
|
|
define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 !dbg !12 {
|
||
|
|
entry:
|
||
|
|
tail call void @llvm.dbg.value(metadata i8** %argv, metadata !19, metadata !21), !dbg !22
|
||
|
|
tail call void @llvm.dbg.value(metadata i32 %argc, metadata !20, metadata !21), !dbg !23
|
||
|
|
store volatile i32 1, i32* @x, align 4, !dbg !24, !tbaa !25
|
||
|
|
tail call void @clobber() #2, !dbg !29
|
||
|
|
store volatile i32 2, i32* @x, align 4, !dbg !30, !tbaa !25
|
||
|
|
%0 = load volatile i32, i32* @x, align 4, !dbg !31, !tbaa !25
|
||
|
|
%tobool = icmp eq i32 %0, 0, !dbg !31
|
||
|
|
br i1 %tobool, label %if.else, label %if.then, !dbg !33
|
||
|
|
|
||
|
|
if.then: ; preds = %entry
|
||
|
|
store volatile i32 3, i32* @x, align 4, !dbg !34, !tbaa !25
|
||
|
|
br label %if.end, !dbg !36
|
||
|
|
|
||
|
|
if.else: ; preds = %entry
|
||
|
|
|
||
|
|
store volatile i32 4, i32* @x, align 4, !dbg !37, !tbaa !25
|
||
|
|
br label %if.end
|
||
|
|
|
||
|
|
if.end: ; preds = %if.else, %if.then
|
||
|
|
ret i32 0, !dbg !39
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @clobber()
|
||
|
|
|
||
|
|
; Function Attrs: nounwind readnone
|
||
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
||
|
|
|
||
|
|
attributes #0 = { nounwind uwtable }
|
||
|
|
attributes #1 = { nounwind readnone }
|
||
|
|
attributes #2 = { nounwind }
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!2}
|
||
|
|
!llvm.module.flags = !{!8, !9, !10}
|
||
|
|
!llvm.ident = !{!11}
|
||
|
|
|
||
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
||
|
|
!1 = !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
|
||
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
|
||
|
|
!3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
|
||
|
|
!4 = !{}
|
||
|
|
!5 = !{!0}
|
||
|
|
!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !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 = !{i32 1, !"PIC Level", i32 2}
|
||
|
|
!11 = !{!"clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)"}
|
||
|
|
!12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 4, type: !13, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !18)
|
||
|
|
!13 = !DISubroutineType(types: !14)
|
||
|
|
!14 = !{!7, !7, !15}
|
||
|
|
!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64, align: 64)
|
||
|
|
!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64, align: 64)
|
||
|
|
!17 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
|
||
|
|
!18 = !{!19, !20}
|
||
|
|
!19 = !DILocalVariable(name: "argv", arg: 2, scope: !12, file: !3, line: 4, type: !15)
|
||
|
|
!20 = !DILocalVariable(name: "argc", arg: 1, scope: !12, file: !3, line: 4, type: !7)
|
||
|
|
!21 = !DIExpression()
|
||
|
|
!22 = !DILocation(line: 4, column: 27, scope: !12)
|
||
|
|
!23 = !DILocation(line: 4, column: 14, scope: !12)
|
||
|
|
!24 = !DILocation(line: 5, column: 5, scope: !12)
|
||
|
|
!25 = !{!26, !26, i64 0}
|
||
|
|
!26 = !{!"int", !27, i64 0}
|
||
|
|
!27 = !{!"omnipotent char", !28, i64 0}
|
||
|
|
!28 = !{!"Simple C/C++ TBAA"}
|
||
|
|
!29 = !DILocation(line: 6, column: 3, scope: !12)
|
||
|
|
!30 = !DILocation(line: 7, column: 5, scope: !12)
|
||
|
|
!31 = !DILocation(line: 8, column: 7, scope: !32)
|
||
|
|
!32 = distinct !DILexicalBlock(scope: !12, file: !3, line: 8, column: 7)
|
||
|
|
!33 = !DILocation(line: 8, column: 7, scope: !12)
|
||
|
|
!34 = !DILocation(line: 9, column: 7, scope: !35)
|
||
|
|
!35 = distinct !DILexicalBlock(scope: !32, file: !3, line: 8, column: 10)
|
||
|
|
!36 = !DILocation(line: 10, column: 3, scope: !35)
|
||
|
|
!37 = !DILocation(line: 11, column: 7, scope: !38)
|
||
|
|
!38 = distinct !DILexicalBlock(scope: !32, file: !3, line: 10, column: 10)
|
||
|
|
!39 = !DILocation(line: 13, column: 1, scope: !12)
|
||
|
|
|