Files
clang-p2996/llvm/test/DebugInfo/ARM/salvage-debug-info.ll
Stephen Tozer 094572701d [RemoveDIs] Print IR with debug records by default (#91724)
This patch makes the final major change of the RemoveDIs project, changing the
default IR output from debug intrinsics to debug records. This is expected to
break a large number of tests: every single one that tests for uses or
declarations of debug intrinsics and does not explicitly disable writing
records. 

If this patch has broken your downstream tests (or upstream tests on a
configuration I wasn't able to run):
1. If you need to immediately unblock a build, pass
`--write-experimental-debuginfo=false` to LLVM's option processing for all
failing tests (remember to use `-mllvm` for clang/flang to forward arguments to
LLVM).
2. For most test failures, the changes are trivial and mechanical, enough that
they can be done by script; see the migration guide for a guide on how to do
this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates
3. If any tests fail for reasons other than FileCheck check lines that need
updating, such as assertion failures, that is most likely a real bug with this
patch and should be reported as such.

For more information, see the recent PSA:
https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
2024-06-14 15:07:27 +01:00

118 lines
5.3 KiB
LLVM

; RUN: opt -passes='require<profile-summary>,function(codegenprepare)' -S %s -o - | FileCheck %s
; typedef struct info {
; unsigned long long size;
; } info_t;
; extern unsigned p;
; extern unsigned n;
; void f() {
; unsigned int i;
; if (p) {
; info_t *info = (info_t *)p;
; for (i = 0; i < n; i++)
; use(info[i].size);
; }
; }
source_filename = "debug.i"
target datalayout = "e-m:o-p:32:32-i64:64-a:0:32-n32-S128"
target triple = "thumbv7k-apple-ios10.0.0"
%struct.info = type { i64 }
@p = external local_unnamed_addr global i32, align 4
@n = external local_unnamed_addr global i32, align 4
; Function Attrs: nounwind ssp uwtable
define void @f() local_unnamed_addr #0 !dbg !16 {
entry:
%0 = load i32, ptr @p, align 4, !dbg !25
%tobool = icmp eq i32 %0, 0, !dbg !25
br i1 %tobool, label %if.end, label %if.then, !dbg !26
if.then: ; preds = %entry
%1 = inttoptr i32 %0 to ptr, !dbg !27
tail call void @llvm.dbg.value(metadata ptr %1, metadata !22, metadata !DIExpression()), !dbg !28
; CHECK: #dbg_value(i32 %0, !22, !DIExpression(),
tail call void @llvm.dbg.value(metadata i32 0, metadata !20, metadata !DIExpression()), !dbg !29
%2 = load i32, ptr @n, align 4, !dbg !30
%cmp5 = icmp eq i32 %2, 0, !dbg !33
br i1 %cmp5, label %if.end, label %for.body.preheader, !dbg !34
for.body.preheader: ; preds = %if.then
; CHECK: for.body.preheader:
; CHECK: %2 = inttoptr i32 %0 to ptr
br label %for.body, !dbg !35
for.body: ; preds = %for.body.preheader, %for.body
%lsr.iv = phi ptr [ %1, %for.body.preheader ], [ %scevgep, %for.body ]
%i.06 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
tail call void @llvm.dbg.value(metadata i32 %i.06, metadata !20, metadata !DIExpression()), !dbg !29
%3 = load i64, ptr %lsr.iv, align 8, !dbg !35
%call = tail call i32 @use(i64 %3) #3, !dbg !36
%inc = add nuw i32 %i.06, 1, !dbg !37
tail call void @llvm.dbg.value(metadata i32 %inc, metadata !20, metadata !DIExpression()), !dbg !29
%4 = load i32, ptr @n, align 4, !dbg !30
%scevgep = getelementptr %struct.info, ptr %lsr.iv, i32 1, !dbg !33
%cmp = icmp ult i32 %inc, %4, !dbg !33
br i1 %cmp, label %for.body, label %if.end.loopexit, !dbg !34, !llvm.loop !38
if.end.loopexit: ; preds = %for.body
br label %if.end, !dbg !40
if.end: ; preds = %if.end.loopexit, %if.then, %entry
ret void, !dbg !40
}
declare i32 @use(...) local_unnamed_addr #1
; Function Attrs: nounwind readnone speculatable
declare void @llvm.dbg.value(metadata, metadata, metadata) #2
attributes #0 = { nounwind ssp uwtable }
attributes #2 = { nounwind readnone speculatable }
attributes #3 = { nobuiltin nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10, !11, !12, !13, !14}
!llvm.ident = !{!15}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 317231) (llvm/trunk 317262)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
!1 = !DIFile(filename: "debug.i", directory: "/Data/radar/35321562")
!2 = !{}
!3 = !{!4}
!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 32)
!5 = !DIDerivedType(tag: DW_TAG_typedef, name: "info_t", file: !1, line: 3, baseType: !6)
!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "info", file: !1, line: 1, size: 64, elements: !7)
!7 = !{!8}
!8 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !6, file: !1, line: 2, baseType: !9, size: 64)
!9 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
!10 = !{i32 2, !"Dwarf Version", i32 4}
!11 = !{i32 2, !"Debug Info Version", i32 3}
!12 = !{i32 1, !"wchar_size", i32 4}
!13 = !{i32 1, !"min_enum_size", i32 4}
!14 = !{i32 7, !"PIC Level", i32 2}
!15 = !{!"clang version 6.0.0 (trunk 317231) (llvm/trunk 317262)"}
!16 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 6, type: !17, isLocal: false, isDefinition: true, scopeLine: 6, isOptimized: true, unit: !0, retainedNodes: !19)
!17 = !DISubroutineType(types: !18)
!18 = !{null}
!19 = !{!20, !22}
!20 = !DILocalVariable(name: "i", scope: !16, file: !1, line: 7, type: !21)
!21 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
!22 = !DILocalVariable(name: "info", scope: !23, file: !1, line: 9, type: !4)
!23 = distinct !DILexicalBlock(scope: !24, file: !1, line: 8, column: 10)
!24 = distinct !DILexicalBlock(scope: !16, file: !1, line: 8, column: 7)
!25 = !DILocation(line: 8, column: 7, scope: !24)
!26 = !DILocation(line: 8, column: 7, scope: !16)
!27 = !DILocation(line: 9, column: 20, scope: !23)
!28 = !DILocation(line: 9, column: 13, scope: !23)
!29 = !DILocation(line: 7, column: 16, scope: !16)
!30 = !DILocation(line: 10, column: 21, scope: !31)
!31 = distinct !DILexicalBlock(scope: !32, file: !1, line: 10, column: 5)
!32 = distinct !DILexicalBlock(scope: !23, file: !1, line: 10, column: 5)
!33 = !DILocation(line: 10, column: 19, scope: !31)
!34 = !DILocation(line: 10, column: 5, scope: !32)
!35 = !DILocation(line: 11, column: 19, scope: !31)
!36 = !DILocation(line: 11, column: 7, scope: !31)
!37 = !DILocation(line: 10, column: 25, scope: !31)
!38 = distinct !{!38, !34, !39}
!39 = !DILocation(line: 11, column: 23, scope: !32)
!40 = !DILocation(line: 13, column: 1, scope: !16)