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.
183 lines
8.7 KiB
183 lines
8.7 KiB
4 months ago
|
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
|
||
|
|
#
|
||
|
|
# The test case was artificially adjusted, in order to make proper diamond basic
|
||
|
|
# block structure relevant to the debug entry values propagation.
|
||
|
|
#
|
||
|
|
# CHECK: ![[ARG_B:.*]] = !DILocalVariable(name: "b"
|
||
|
|
# CHECK: ![[ARG_C:.*]] = !DILocalVariable(name: "c"
|
||
|
|
# CHECK: ![[ARG_Q:.*]] = !DILocalVariable(name: "q"
|
||
|
|
# CHECK: bb.0.entry
|
||
|
|
# CHECK: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression()
|
||
|
|
# CHECK: bb.1.if.then
|
||
|
|
# CHECK: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression()
|
||
|
|
# CHECK: $ebx = MOV32rr $esi
|
||
|
|
# CHECK-NEXT: DBG_VALUE $ebx, $noreg, ![[ARG_B]], !DIExpression()
|
||
|
|
# CHECK-NEXT: $esi = MOV32ri 5
|
||
|
|
# CHECK-NEXT: $ebx = MOV32ri 1
|
||
|
|
# CHECK-NEXT: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression(DW_OP_LLVM_entry_value, 1)
|
||
|
|
# CHECK: bb.2.if.else
|
||
|
|
# CHECK: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression()
|
||
|
|
# CHECK: $ebx = MOV32rr $esi
|
||
|
|
# CHECK-NEXT: DBG_VALUE $ebx, $noreg, ![[ARG_B]], !DIExpression()
|
||
|
|
# CHECK-NEXT: $esi = MOV32ri 1
|
||
|
|
# CHECK-NEXT: $ebx = MOV32ri 2
|
||
|
|
# CHECK-NEXT: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression(DW_OP_LLVM_entry_value, 1)
|
||
|
|
# CHECK: bb.3.if.end
|
||
|
|
# CHECK-DAG: DBG_VALUE $edx, $noreg, ![[ARG_Q]], !DIExpression()
|
||
|
|
# CHECK-DAG: DBG_VALUE $ebp, $noreg, ![[ARG_C]], !DIExpression()
|
||
|
|
# CHECK-DAG: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression(DW_OP_LLVM_entry_value, 1)
|
||
|
|
--- |
|
||
|
|
; ModuleID = 'test.c'
|
||
|
|
source_filename = "test.c"
|
||
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
|
||
|
|
; Function Attrs: noinline nounwind uwtable
|
||
|
|
define dso_local i32 @fn2(i32 %a, i32 %b, i32 %c) local_unnamed_addr !dbg !12 {
|
||
|
|
entry:
|
||
|
|
call void @llvm.dbg.value(metadata i32 %a, metadata !16, metadata !DIExpression()), !dbg !20
|
||
|
|
call void @llvm.dbg.value(metadata i32 %b, metadata !17, metadata !DIExpression()), !dbg !20
|
||
|
|
call void @llvm.dbg.value(metadata i32 %c, metadata !18, metadata !DIExpression()), !dbg !20
|
||
|
|
%add = add nsw i32 %a, 2, !dbg !21
|
||
|
|
call void @llvm.dbg.value(metadata i32 %add, metadata !19, metadata !DIExpression()), !dbg !20
|
||
|
|
tail call void @fn1(i32 5, i32 6, i32 %add) #3, !dbg !22
|
||
|
|
%cmp = icmp slt i32 %b, 17, !dbg !23
|
||
|
|
br i1 %cmp, label %if.then, label %if.else, !dbg !25
|
||
|
|
|
||
|
|
if.then: ; preds = %entry
|
||
|
|
%add1 = add nsw i32 %b, 7, !dbg !26
|
||
|
|
call void @llvm.dbg.value(metadata i32 %add1, metadata !17, metadata !DIExpression()), !dbg !20
|
||
|
|
tail call void @fn1(i32 5, i32 %add1, i32 %c) #3, !dbg !28
|
||
|
|
br label %if.end, !dbg !29
|
||
|
|
|
||
|
|
if.else: ; preds = %entry
|
||
|
|
%add2 = add nuw nsw i32 %b, 1, !dbg !30
|
||
|
|
call void @llvm.dbg.value(metadata i32 %add2, metadata !17, metadata !DIExpression()), !dbg !20
|
||
|
|
tail call void @fn1(i32 1, i32 %add2, i32 %c) #3, !dbg !32
|
||
|
|
br label %if.end
|
||
|
|
|
||
|
|
if.end: ; preds = %if.else, %if.then
|
||
|
|
%b.addr.0 = phi i32 [ %add1, %if.then ], [ %add2, %if.else ], !dbg !33
|
||
|
|
call void @llvm.dbg.value(metadata i32 %b.addr.0, metadata !17, metadata !DIExpression()), !dbg !20
|
||
|
|
ret i32 %b.addr.0, !dbg !34
|
||
|
|
}
|
||
|
|
|
||
|
|
declare !dbg !4 dso_local void @fn1(i32, i32, i32) local_unnamed_addr
|
||
|
|
|
||
|
|
; Function Attrs: nounwind readnone speculatable willreturn
|
||
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata)
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!8, !9, !10}
|
||
|
|
!llvm.ident = !{!11}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
|
||
|
|
!1 = !DIFile(filename: "test.c", directory: "/dir")
|
||
|
|
!2 = !{}
|
||
|
|
!3 = !{!4}
|
||
|
|
!4 = !DISubprogram(name: "fn1", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
|
||
|
|
!5 = !DISubroutineType(types: !6)
|
||
|
|
!6 = !{null, !7, !7, !7}
|
||
|
|
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||
|
|
!8 = !{i32 2, !"Dwarf Version", i32 4}
|
||
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!10 = !{i32 1, !"wchar_size", i32 4}
|
||
|
|
!11 = !{!"clang version 10.0.0"}
|
||
|
|
!12 = distinct !DISubprogram(name: "fn2", scope: !1, file: !1, line: 5, type: !13, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||
|
|
!13 = !DISubroutineType(types: !14)
|
||
|
|
!14 = !{!7, !7, !7, !7}
|
||
|
|
!15 = !{!16, !17, !18, !19}
|
||
|
|
!16 = !DILocalVariable(name: "a", arg: 1, scope: !12, file: !1, line: 5, type: !7)
|
||
|
|
!17 = !DILocalVariable(name: "b", arg: 2, scope: !12, file: !1, line: 5, type: !7)
|
||
|
|
!18 = !DILocalVariable(name: "c", arg: 3, scope: !12, file: !1, line: 5, type: !7)
|
||
|
|
!19 = !DILocalVariable(name: "q", scope: !12, file: !1, line: 7, type: !7)
|
||
|
|
!20 = !DILocation(line: 0, scope: !12)
|
||
|
|
!21 = !DILocation(line: 7, column: 15, scope: !12)
|
||
|
|
!22 = !DILocation(line: 9, column: 5, scope: !12)
|
||
|
|
!23 = !DILocation(line: 11, column: 11, scope: !24)
|
||
|
|
!24 = distinct !DILexicalBlock(scope: !12, file: !1, line: 11, column: 9)
|
||
|
|
!25 = !DILocation(line: 11, column: 9, scope: !12)
|
||
|
|
!26 = !DILocation(line: 12, column: 13, scope: !27)
|
||
|
|
!27 = distinct !DILexicalBlock(scope: !24, file: !1, line: 11, column: 17)
|
||
|
|
!28 = !DILocation(line: 13, column: 8, scope: !27)
|
||
|
|
!29 = !DILocation(line: 14, column: 5, scope: !27)
|
||
|
|
!30 = !DILocation(line: 15, column: 13, scope: !31)
|
||
|
|
!31 = distinct !DILexicalBlock(scope: !24, file: !1, line: 14, column: 12)
|
||
|
|
!32 = !DILocation(line: 16, column: 7, scope: !31)
|
||
|
|
!33 = !DILocation(line: 0, scope: !24)
|
||
|
|
!34 = !DILocation(line: 19, column: 5, scope: !12)
|
||
|
|
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: fn2
|
||
|
|
alignment: 16
|
||
|
|
fixedStack:
|
||
|
|
- { id: 0, type: spill-slot, offset: -24, size: 8, alignment: 8, stack-id: default,
|
||
|
|
callee-saved-register: '$rbx', callee-saved-restored: true, debug-info-variable: '',
|
||
|
|
debug-info-expression: '', debug-info-location: '' }
|
||
|
|
- { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default,
|
||
|
|
callee-saved-register: '$rbp', callee-saved-restored: true, debug-info-variable: '',
|
||
|
|
debug-info-expression: '', debug-info-location: '' }
|
||
|
|
body: |
|
||
|
|
bb.0.entry:
|
||
|
|
successors: %bb.1(0x40000000), %bb.2(0x40000000)
|
||
|
|
liveins: $edi, $edx, $esi, $rbp, $rbx
|
||
|
|
|
||
|
|
DBG_VALUE $edi, $noreg, !16, !DIExpression(), debug-location !20
|
||
|
|
DBG_VALUE $esi, $noreg, !17, !DIExpression(), debug-location !20
|
||
|
|
DBG_VALUE $edx, $noreg, !18, !DIExpression(), debug-location !20
|
||
|
|
frame-setup PUSH64r killed $rbp, implicit-def $rsp, implicit $rsp
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 16
|
||
|
|
frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 24
|
||
|
|
frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 32
|
||
|
|
CFI_INSTRUCTION offset $rbx, -24
|
||
|
|
CFI_INSTRUCTION offset $rbp, -16
|
||
|
|
$ebp = MOV32rr $edx
|
||
|
|
DBG_VALUE $ebp, $noreg, !18, !DIExpression(), debug-location !20
|
||
|
|
renamable $edi = KILL $edi, implicit-def $rdi
|
||
|
|
DBG_VALUE $edi, $noreg, !16, !DIExpression(), debug-location !20
|
||
|
|
renamable $edx = LEA64_32r killed renamable $rdi, 1, $noreg, 2, $noreg, debug-location !21
|
||
|
|
DBG_VALUE $edx, $noreg, !19, !DIExpression(), debug-location !20
|
||
|
|
$edi = MOV32ri 5, debug-location !22
|
||
|
|
CMP32ri8 renamable $ebp, 16, implicit-def $eflags, debug-location !23
|
||
|
|
JCC_1 %bb.2, 15, implicit killed $eflags, debug-location !25
|
||
|
|
|
||
|
|
bb.1.if.then:
|
||
|
|
successors: %bb.3(0x80000000)
|
||
|
|
liveins: $ebp, $ebx, $esi
|
||
|
|
|
||
|
|
$ebx = MOV32rr $esi
|
||
|
|
DBG_VALUE $ebx, $noreg, !17, !DIExpression(), debug-location !20
|
||
|
|
$esi = MOV32ri 5, debug-location !28
|
||
|
|
$ebx = MOV32ri 1
|
||
|
|
JMP_1 %bb.3
|
||
|
|
|
||
|
|
bb.2.if.else:
|
||
|
|
successors: %bb.3(0x80000000)
|
||
|
|
liveins: $ebp, $ebx, $esi
|
||
|
|
|
||
|
|
$ebx = MOV32rr $esi
|
||
|
|
DBG_VALUE $ebx, $noreg, !17, !DIExpression(), debug-location !20
|
||
|
|
$esi = MOV32ri 1, debug-location !32
|
||
|
|
$ebx = MOV32ri 2
|
||
|
|
|
||
|
|
bb.3.if.end:
|
||
|
|
liveins: $ebx, $edi, $ebp
|
||
|
|
|
||
|
|
$esi = MOV32rr $ebx, debug-location !33
|
||
|
|
$edx = MOV32rr killed $ebp, debug-location !33
|
||
|
|
CALL64pcrel32 @fn1, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit $esi, implicit $edx, implicit-def $rsp, implicit-def $ssp, debug-location !33
|
||
|
|
DBG_VALUE $ebx, $noreg, !17, !DIExpression(), debug-location !20
|
||
|
|
$eax = MOV32rr killed $ebx, debug-location !34
|
||
|
|
$rsp = frame-destroy ADD64ri8 $rsp, 8, implicit-def dead $eflags, debug-location !34
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 24, debug-location !34
|
||
|
|
$rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !34
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 16, debug-location !34
|
||
|
|
$rbp = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !34
|
||
|
|
CFI_INSTRUCTION def_cfa_offset 8, debug-location !34
|
||
|
|
RETQ killed $eax, debug-location !34
|
||
|
|
|
||
|
|
...
|