632f44e5ed
This patch trivially updates various opt passes to handle DPVAssigns. In all cases, this means some combination of generifying existing code to handle DPValues and DbgAssignIntrinsics, iterating over DPValues where previously we did not, or duplicating code for DbgAssignIntrinsics to the equivalent DPValue function (in inlining and salvageDebugInfo).
82 lines
4.3 KiB
LLVM
82 lines
4.3 KiB
LLVM
; RUN: opt %s -S -passes=instcombine -o - \
|
|
; RUN: | FileCheck %s
|
|
; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=instcombine -o - \
|
|
; RUN: | FileCheck %s
|
|
|
|
;; $ cat test.cpp
|
|
;; void esc(int*);
|
|
;; void fun() {
|
|
;; int local[5];
|
|
;; __builtin_memset(local, 8, 4 * 4);
|
|
;; __builtin_memset(local, 0, 2 * 4);
|
|
;; esc(local);
|
|
;; }
|
|
;; IR grabbed before instcombine in:
|
|
;; clang++ -O2 -g -Xclang -fexperimental-assignment-tracking
|
|
|
|
;; Instcombine is going to turn the second memset into a store. Check that it
|
|
;; inherits the DIAssignID from the memset and that the dbg.assign's value
|
|
;; component is correct.
|
|
|
|
; CHECK: store i64 0, ptr %local, align 16{{.*}}, !DIAssignID ![[ID:[0-9]+]]
|
|
; CHECK-NEXT: call void @llvm.dbg.assign(metadata i64 0, metadata !{{.*}}, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64), metadata ![[ID]], metadata ptr %local, metadata !DIExpression())
|
|
|
|
define dso_local void @_Z3funv() local_unnamed_addr #0 !dbg !7 {
|
|
entry:
|
|
%local = alloca [5 x i32], align 16, !DIAssignID !16
|
|
call void @llvm.dbg.assign(metadata i1 undef, metadata !11, metadata !DIExpression(), metadata !16, metadata ptr %local, metadata !DIExpression()), !dbg !17
|
|
%0 = bitcast ptr %local to ptr, !dbg !18
|
|
call void @llvm.lifetime.start.p0i8(i64 20, ptr %0) #5, !dbg !18
|
|
%arraydecay = getelementptr inbounds [5 x i32], ptr %local, i64 0, i64 0, !dbg !19
|
|
%1 = bitcast ptr %arraydecay to ptr, !dbg !19
|
|
call void @llvm.memset.p0i8.i64(ptr align 16 %1, i8 8, i64 16, i1 false), !dbg !19, !DIAssignID !20
|
|
call void @llvm.dbg.assign(metadata i8 8, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 128), metadata !20, metadata ptr %1, metadata !DIExpression()), !dbg !17
|
|
call void @llvm.memset.p0i8.i64(ptr align 16 %1, i8 0, i64 8, i1 false), !dbg !21, !DIAssignID !22
|
|
call void @llvm.dbg.assign(metadata i8 0, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64), metadata !22, metadata ptr %1, metadata !DIExpression()), !dbg !17
|
|
call void @_Z3escPi(ptr noundef %arraydecay), !dbg !23
|
|
call void @llvm.lifetime.end.p0i8(i64 20, ptr %0) #5, !dbg !24
|
|
ret void, !dbg !24
|
|
}
|
|
|
|
declare void @llvm.lifetime.start.p0i8(i64 immarg, ptr nocapture)
|
|
declare void @llvm.memset.p0i8.i64(ptr nocapture writeonly, i8, i64, i1 immarg)
|
|
declare !dbg !25 dso_local void @_Z3escPi(ptr noundef) local_unnamed_addr
|
|
declare void @llvm.lifetime.end.p0i8(i64 immarg, ptr nocapture)
|
|
declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2, !3, !4, !5, !1000}
|
|
!llvm.ident = !{!6}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
|
|
!1 = !DIFile(filename: "test.cpp", directory: "/")
|
|
!2 = !{i32 7, !"Dwarf Version", i32 5}
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!4 = !{i32 1, !"wchar_size", i32 4}
|
|
!5 = !{i32 7, !"uwtable", i32 1}
|
|
!6 = !{!"clang version 14.0.0"}
|
|
!7 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
|
|
!8 = !DISubroutineType(types: !9)
|
|
!9 = !{null}
|
|
!10 = !{!11}
|
|
!11 = !DILocalVariable(name: "local", scope: !7, file: !1, line: 3, type: !12)
|
|
!12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 160, elements: !14)
|
|
!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!14 = !{!15}
|
|
!15 = !DISubrange(count: 5)
|
|
!16 = distinct !DIAssignID()
|
|
!17 = !DILocation(line: 0, scope: !7)
|
|
!18 = !DILocation(line: 3, column: 3, scope: !7)
|
|
!19 = !DILocation(line: 4, column: 3, scope: !7)
|
|
!20 = distinct !DIAssignID()
|
|
!21 = !DILocation(line: 5, column: 3, scope: !7)
|
|
!22 = distinct !DIAssignID()
|
|
!23 = !DILocation(line: 6, column: 3, scope: !7)
|
|
!24 = !DILocation(line: 7, column: 1, scope: !7)
|
|
!25 = !DISubprogram(name: "esc", linkageName: "_Z3escPi", scope: !1, file: !1, line: 1, type: !26, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !29)
|
|
!26 = !DISubroutineType(types: !27)
|
|
!27 = !{null, !28}
|
|
!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
|
|
!29 = !{}
|
|
!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
|