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
106 lines
4.7 KiB
LLVM
106 lines
4.7 KiB
LLVM
; RUN: opt -passes=bpf-preserve-static-offset -mtriple=bpf-pc-linux -S -o - %s | FileCheck %s
|
|
;
|
|
; Source:
|
|
; #define __ctx __attribute__((preserve_static_offset))
|
|
; #define __pai __attribute__((preserve_access_index))
|
|
;
|
|
; struct foo {
|
|
; int a;
|
|
; int b;
|
|
; };
|
|
;
|
|
; struct bar {
|
|
; int _1;
|
|
; int _2;
|
|
; struct foo c;
|
|
; } __pai __ctx;
|
|
;
|
|
; int buz(struct bar *p) {
|
|
; return p->c.b;
|
|
; }
|
|
;
|
|
; Compilation flag:
|
|
; clang -cc1 -O2 -triple bpf -S -emit-llvm -disable-llvm-passes \
|
|
; -debug-info-kind=limited -o - \
|
|
; | opt -passes=function(sroa) -S -o -
|
|
|
|
%struct.bar = type { i32, i32, %struct.foo }
|
|
%struct.foo = type { i32, i32 }
|
|
|
|
; Function Attrs: nounwind
|
|
define dso_local i32 @buz(ptr noundef %p) #0 !dbg !5 {
|
|
entry:
|
|
call void @llvm.dbg.value(metadata ptr %p, metadata !20, metadata !DIExpression()), !dbg !21
|
|
%0 = call ptr @llvm.preserve.static.offset(ptr %p), !dbg !22
|
|
%1 = call ptr @llvm.preserve.struct.access.index.p0.p0(ptr elementtype(%struct.bar) %0, i32 2, i32 2), !dbg !22, !llvm.preserve.access.index !10
|
|
%b = getelementptr inbounds %struct.foo, ptr %1, i32 0, i32 1, !dbg !23
|
|
%2 = load i32, ptr %b, align 4, !dbg !23, !tbaa !24
|
|
ret i32 %2, !dbg !30
|
|
}
|
|
|
|
; CHECK: define dso_local i32 @buz(ptr noundef %[[p:.*]]) {{.*}} {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: #dbg_value
|
|
; CHECK-NEXT: %[[b1:.*]] = call i32 (ptr, i1, i8, i8, i8, i1, ...)
|
|
; CHECK-SAME: @llvm.bpf.getelementptr.and.load.i32
|
|
; CHECK-SAME: (ptr readonly elementtype(%struct.bar) %[[p]],
|
|
; CHECK-SAME: i1 false, i8 0, i8 1, i8 2, i1 true, i32 immarg 0, i32 immarg 2, i32 immarg 1)
|
|
; CHECK-SAME: #[[v5:.*]], !tbaa
|
|
; CHECK-NEXT: ret i32 %[[b1]]
|
|
; CHECK-NEXT: }
|
|
|
|
; CHECK: attributes #[[v5]] = { memory(argmem: read) }
|
|
|
|
|
|
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
|
|
declare ptr @llvm.preserve.static.offset(ptr readnone) #1
|
|
|
|
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
|
|
declare ptr @llvm.preserve.struct.access.index.p0.p0(ptr, i32 immarg, i32 immarg) #2
|
|
|
|
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
|
|
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
|
|
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(none) }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2, !3}
|
|
!llvm.ident = !{!4}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
|
|
!1 = !DIFile(filename: "some-file.c", directory: "/some/dir/")
|
|
!2 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!3 = !{i32 1, !"wchar_size", i32 4}
|
|
!4 = !{!"clang"}
|
|
!5 = distinct !DISubprogram(name: "buz", scope: !1, file: !1, line: 15, type: !6, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !19)
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{!8, !9}
|
|
!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64)
|
|
!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "bar", file: !1, line: 9, size: 128, elements: !11)
|
|
!11 = !{!12, !13, !14}
|
|
!12 = !DIDerivedType(tag: DW_TAG_member, name: "_1", scope: !10, file: !1, line: 10, baseType: !8, size: 32)
|
|
!13 = !DIDerivedType(tag: DW_TAG_member, name: "_2", scope: !10, file: !1, line: 11, baseType: !8, size: 32, offset: 32)
|
|
!14 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !10, file: !1, line: 12, baseType: !15, size: 64, offset: 64)
|
|
!15 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "foo", file: !1, line: 4, size: 64, elements: !16)
|
|
!16 = !{!17, !18}
|
|
!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !15, file: !1, line: 5, baseType: !8, size: 32)
|
|
!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !15, file: !1, line: 6, baseType: !8, size: 32, offset: 32)
|
|
!19 = !{!20}
|
|
!20 = !DILocalVariable(name: "p", arg: 1, scope: !5, file: !1, line: 15, type: !9)
|
|
!21 = !DILocation(line: 0, scope: !5)
|
|
!22 = !DILocation(line: 16, column: 13, scope: !5)
|
|
!23 = !DILocation(line: 16, column: 15, scope: !5)
|
|
!24 = !{!25, !26, i64 12}
|
|
!25 = !{!"bar", !26, i64 0, !26, i64 4, !29, i64 8}
|
|
!26 = !{!"int", !27, i64 0}
|
|
!27 = !{!"omnipotent char", !28, i64 0}
|
|
!28 = !{!"Simple C/C++ TBAA"}
|
|
!29 = !{!"foo", !26, i64 0, !26, i64 4}
|
|
!30 = !DILocation(line: 16, column: 3, scope: !5)
|