094572701d
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
67 lines
3.0 KiB
LLVM
67 lines
3.0 KiB
LLVM
; REQUIRES: x86-registered-target
|
|
; RUN: llc -start-before=codegenprepare -stop-after=codegenprepare \
|
|
; RUN: -mtriple=x86_64-unknown-unknown %s -o - \
|
|
; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg."
|
|
|
|
;; Test with RemoveDIs non-intrinsic debug-info too.
|
|
; RUN: llc -start-before=codegenprepare -stop-after=codegenprepare \
|
|
; RUN: -mtriple=x86_64-unknown-unknown %s -o - --try-experimental-debuginfo-iterators \
|
|
; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg."
|
|
|
|
;; Check that when CodeGenPrepare moves an address computation to a block it's
|
|
;; used in its dbg.assign uses are updated.
|
|
;;
|
|
;; Based on llvm/test/DebugInfo/X86/codegenprepare-addrsink.ll
|
|
|
|
define dso_local i8 @foo(ptr %p, i32 %cond) !dbg !7 {
|
|
entry:
|
|
%casted = bitcast ptr %p to ptr
|
|
%arith = getelementptr i8, ptr %casted, i32 3
|
|
%load1 = load i8, ptr %arith
|
|
%cmpresult = icmp eq i32 %cond, 0
|
|
br i1 %cmpresult, label %next, label %ret
|
|
|
|
next:
|
|
; Address calcs should be duplicated into this block. One dbg.value should be
|
|
; updated, and the other should not.
|
|
; CHECK-LABEL: next:
|
|
; CHECK: %[[CASTVAR:[0-9a-zA-Z]+]] = bitcast ptr %p to ptr
|
|
; CHECK-NEXT: #dbg_assign(ptr %arith, ![[DIVAR:[0-9]+]],
|
|
; CHECK-NEXT: %[[GEPVAR:[0-9a-zA-Z]+]] = getelementptr i8, ptr %[[CASTVAR]], i64 3
|
|
; CHECK-NEXT: %loaded = load i8, ptr %[[GEPVAR]]
|
|
; CHECK-NEXT: #dbg_assign(ptr %[[GEPVAR]], ![[DIVAR]],
|
|
call void @llvm.dbg.assign(metadata ptr %arith, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !14
|
|
%loaded = load i8, ptr %arith
|
|
call void @llvm.dbg.assign(metadata ptr %arith, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr undef, metadata !DIExpression()), !dbg !14
|
|
ret i8 %loaded
|
|
|
|
ret:
|
|
ret i8 0
|
|
}
|
|
|
|
; CHECK: ![[DIVAR]] = !DILocalVariable(name: "p",
|
|
|
|
declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4, !5, !1000}
|
|
!llvm.ident = !{!6}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
|
|
!1 = !DIFile(filename: "test.cpp", directory: ".")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = !{i32 1, !"wchar_size", i32 4}
|
|
!6 = !{!"clang version 8.0.0 (trunk 348209)"}
|
|
!7 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 4, type: !8, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
|
|
!8 = !DISubroutineType(types: !9)
|
|
!9 = !{null, !10}
|
|
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!11 = !{!12}
|
|
!12 = !DILocalVariable(name: "p", arg: 1, scope: !7, file: !1, line: 4, type: !10)
|
|
!14 = !DILocation(line: 4, column: 15, scope: !7)
|
|
!20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7)
|
|
!21 = distinct !DIAssignID()
|
|
!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
|