llvm-project/llvm/test/DebugInfo/MIR/X86/livedebugvalues_basic_loop.mir
Fangrui Song 40a4cbb0f2 [MIR,test] Change llc -march=x86-64 to -mtriple=x86_64
Similar to 806761a7629df268c8aed49657aeccffa6bca449

-mtriple= specifies the full target triple while -march= merely sets the
architecture part of the default target triple (e.g. Windows, macOS).

Therefore, -march= is error-prone and not recommended for tests without
a target triple. The issue has been benign as these MIR tests do not
utilize object file format specific detail, but it's good to change
these tests to neighbor files that use -mtriple=x86_64
2024-12-15 11:23:08 -08:00

67 lines
2.5 KiB
YAML

--- |
; RUN: llc %s -mtriple=x86_64 -run-pass=livedebugvalues -o - | FileCheck %s -implicit-check-not=DBG_VALUE
; Check that DBG_VALUE instructions are propagated throughout a CFG with a
; loop that doesn't move or clobber its location.
; CHECK-LABEL: bb.0.entry:
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
; CHECK-LABEL: bb.1.bb1:
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
; CHECK-LABEL: bb.2.bb2:
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
; CHECK-LABEL: bb.3.bb3:
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
entry:
br label %bb1, !dbg !17
bb1:
br label %bb2, !dbg !17
bb2:
br label %bb3, !dbg !17
bb3:
ret i32 0, !dbg !17
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!7, !8, !9, !10}
!llvm.ident = !{!11}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
!1 = !DIFile(filename: "main.cpp", directory: "F:\")
!2 = !{}
!3 = !{!4}
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 2, !"Debug Info Version", i32 3}
!9 = !{i32 1, !"wchar_size", i32 2}
!10 = !{i32 7, !"PIC Level", i32 2}
!11 = !{!"clang version 10.0.0"}
!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
!13 = !DISubroutineType(types: !14)
!14 = !{!6, !6}
!15 = !{!16}
!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
!17 = !DILocation(line: 10, scope: !12)
...
---
name: _Z8bb_to_bb
body: |
bb.0.entry:
successors: %bb.1
$ebx = MOV32ri 0, debug-location !17
DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
bb.1.bb1:
successors: %bb.2
$eax = MOV32ri 0, debug-location !17
bb.2.bb2:
successors: %bb.1, %bb.3
$eax = MOV32ri 0, debug-location !17
JCC_1 %bb.1, 4, implicit killed $eflags
bb.3.bb3:
RET64 $eax, debug-location !17
...