Files
llvm-project/llvm/test/Transforms/LoopVectorize/debugloc.ll
Vladislav Dzhidzhoev e2a2c03eef [DebugInfo] Add Verifier check for incorrectly-scoped retainedNodes (#166855)
These checks ensure that retained nodes of a DISubprogram belong to the
subprogram.

Tests with incorrect IR are fixed. We should not have variables of one subprogram present in retained nodes of other subprograms.

Also, interface for accessing DISubprogram's retained nodes is slightly
refactored. `DISubprogram::visitRetainedNodes` and
`DISubprogram::forEachRetainedNode` are added to avoid repeating checks
like
```
if (const auto *LV = dyn_cast<DILocalVariable>(N))
  ...
else if (const auto *L = dyn_cast<DILabel>(N))
  ...
else if (const auto *IE = dyn_cast<DIImportedEntity>(N))
  ...
```
2025-11-10 13:13:49 +01:00

263 lines
13 KiB
LLVM

; RUN: opt -S < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=2 | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
; Make sure we are preserving debug info in the vectorized code.
; CHECK-LABEL: define i32 @f(
; CHECK: for.body.lr.ph
; CHECK: min.iters.check = icmp ult i64 {{.*}}, 2, !dbg !{{[0-9]+}}
; CHECK: vector.body
; CHECK: index {{.*}}, !dbg ![[LOC1:[0-9]+]]
; CHECK: getelementptr inbounds i32, ptr %a, {{.*}}, !dbg ![[LOC2:[0-9]+]]
; CHECK: getelementptr inbounds i32, ptr %b, {{.*}}, !dbg ![[LOC1]]
; CHECK: load <2 x i32>, ptr {{.*}}, !dbg ![[LOC1]]
; CHECK: add <2 x i32> {{.*}}, !dbg ![[LOC1]]
; CHECK: add nuw i64 %index, 2, !dbg ![[LOC1]]
; CHECK: icmp eq i64 %index.next, %n.vec, !dbg ![[BR_LOC:[0-9]+]]
; CHECK: middle.block
; CHECK: call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> %{{.*}}), !dbg ![[BR_LOC]]
; CHECK: for.body
; CHECK: br i1{{.*}}, label %for.body,{{.*}}, !dbg ![[BR_LOC]],
define i32 @f(ptr nocapture %a, ptr %b, i32 %size) !dbg !4 {
entry:
call void @llvm.dbg.value(metadata ptr %a, metadata !13, metadata !DIExpression()), !dbg !19
call void @llvm.dbg.value(metadata i32 %size, metadata !14, metadata !DIExpression()), !dbg !19
call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !20
call void @llvm.dbg.value(metadata i32 0, metadata !16, metadata !DIExpression()), !dbg !21
%cmp4 = icmp eq i32 %size, 0, !dbg !21
br i1 %cmp4, label %for.end, label %for.body.lr.ph, !dbg !21
for.body.lr.ph: ; preds = %entry
br label %for.body, !dbg !21
for.body: ; preds = %for.body.lr.ph, %for.body
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%sum = phi i32 [ 0, %for.body.lr.ph ], [ %sum.next, %for.body ]
%arrayidx.1 = getelementptr inbounds i32, ptr %a, i64 %indvars.iv, !dbg !19
%arrayidx.2 = getelementptr inbounds i32, ptr %b, i64 %indvars.iv, !dbg !22
%l.1 = load i32, ptr %arrayidx.1, align 4, !dbg !22
%l.2 = load i32, ptr %arrayidx.2, align 4, !dbg !22
%add.1 = add i32 %l.1, %l.2
%sum.next = add i32 %add.1, %sum, !dbg !22
%indvars.iv.next = add i64 %indvars.iv, 1, !dbg !22
call void @llvm.dbg.value(metadata !{null}, metadata !16, metadata !DIExpression()), !dbg !22
%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !22
%exitcond = icmp ne i32 %lftr.wideiv, %size, !dbg !21
br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge, !dbg !21
for.cond.for.end_crit_edge: ; preds = %for.body
%add.lcssa = phi i32 [ %sum.next, %for.body ]
call void @llvm.dbg.value(metadata i32 %add.lcssa, metadata !15, metadata !DIExpression()), !dbg !22
br label %for.end, !dbg !21
for.end: ; preds = %entry, %for.cond.for.end_crit_edge
%sum.0.lcssa = phi i32 [ %add.lcssa, %for.cond.for.end_crit_edge ], [ 0, %entry ]
ret i32 %sum.0.lcssa, !dbg !26
}
define i32 @test_debug_loc_on_branch_in_loop(ptr noalias %src, ptr noalias %dst) {
; CHECK-LABEL: define i32 @test_debug_loc_on_branch_in_loop(
; CHECK-LABEL: vector.body:
; CHECK: [[LOAD:%.+]] = load <2 x i32>, ptr {{.+}}, align 4
; CHECK-NEXT: [[CMP:%.+]] = icmp ne <2 x i32> [[LOAD]], splat (i32 10), !dbg [[LOC3:!.+]]
; CHECK-NEXT: [[EXT:%.+]] = extractelement <2 x i1> [[CMP]], i32 0, !dbg [[LOC3]]
; CHECK-NEXT: br i1 [[EXT]], label %pred.store.if, label %pred.store.continue, !dbg [[LOC3]]
; CHECK-EMPTY:
; CHECK-NEXT: pred.store.if:
; CHECK-NEXT: [[IDX:%.+]] = add i64 %index, 0
; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds i32, ptr %dst, i64 [[IDX]]
; CHECK-NEXT: store i32 0, ptr [[GEP]], align 4
; CHECK-NEXT: br label %pred.store.continue, !dbg [[LOC3]]
; CHECK-EMPTY:
;
entry:
br label %loop.header
loop.header:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]
%gep.src = getelementptr inbounds i32, ptr %src, i64 %iv
%l = load i32, ptr %gep.src, align 4
%cmp = icmp eq i32 %l, 10
br i1 %cmp, label %loop.latch, label %if.then, !dbg !28
if.then:
%gep.dst = getelementptr inbounds i32, ptr %dst, i64 %iv
store i32 0, ptr %gep.dst, align 4
br label %loop.latch
loop.latch:
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1000
br i1 %exitcond.not, label %exit, label %loop.header
exit:
ret i32 0
}
define i32 @test_different_debug_loc_on_replicate_recipe(ptr noalias %src, ptr noalias %dst) {
; CHECK-LABEL: define i32 @test_different_debug_loc_on_replicate_recipe(
; CHECK-LABEL: vector.body:
; CHECK: [[LOAD:%.+]] = load <2 x i32>, ptr {{.+}}, align 4
; CHECK-NEXT: [[CMP:%.+]] = icmp ne <2 x i32> [[LOAD]], splat (i32 10), !dbg [[LOC4:!.+]]
; CHECK-NEXT: [[EXT:%.+]] = extractelement <2 x i1> [[CMP]], i32 0, !dbg [[LOC4]]
; CHECK-NEXT: br i1 [[EXT]], label %pred.store.if, label %pred.store.continue, !dbg [[LOC4]]
; CHECK-EMPTY:
; CHECK-NEXT: pred.store.if:
; CHECK-NEXT: [[IDX:%.+]] = add i64 %index, 0
; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds i32, ptr %dst, i64 [[IDX]], !dbg [[LOC5:!.+]]
; CHECK-NEXT: store i32 0, ptr [[GEP]], align 4
; CHECK-NEXT: br label %pred.store.continue, !dbg [[LOC4]]
; CHECK-EMPTY:
;
entry:
br label %loop.header
loop.header:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]
%gep.src = getelementptr inbounds i32, ptr %src, i64 %iv
%l = load i32, ptr %gep.src, align 4
%cmp = icmp eq i32 %l, 10
br i1 %cmp, label %loop.latch, label %if.then, !dbg !33
if.then:
%gep.dst = getelementptr inbounds i32, ptr %dst, i64 %iv, !dbg !34
store i32 0, ptr %gep.dst, align 4
br label %loop.latch
loop.latch:
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1000
br i1 %exitcond.not, label %exit, label %loop.header
exit:
ret i32 0
}
define void @test_misc(ptr nocapture %a, ptr noalias %b, i64 %size) !dbg !35 {
; CHECK-LABEL: define void @test_misc(
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr %a, i64 [[INDEX]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr %b, i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i32>, ptr [[TMP1]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp uge <2 x i32> [[WIDE_LOAD]], splat (i32 10)
; CHECK-NEXT: [[TMP5:%.*]] = select <2 x i1> [[TMP4]], <2 x i32> [[WIDE_LOAD]], <2 x i32> zeroinitializer, !dbg [[LOC6:![0-9]+]]
; CHECK-NEXT: store <2 x i32> [[TMP5]], ptr [[TMP2]], align 4, !dbg [[LOC7:![0-9]+]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]],
; CHECK-NEXT: br i1 [[TMP7]], label %middle.block, label %vector.body
;
entry:
br label %loop
loop:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
%arrayidx.1 = getelementptr inbounds i32, ptr %a, i64 %iv
%arrayidx.2 = getelementptr inbounds i32, ptr %b, i64 %iv
%l.1 = load i32, ptr %arrayidx.1, align 4
%c = icmp uge i32 %l.1, 10
%sel = select i1 %c, i32 %l.1, i32 0, !dbg !37
store i32 %sel, ptr %arrayidx.2, !dbg !38
%iv.next = add i64 %iv, 1
%exitcond = icmp ne i64 %iv.next, %size
br i1 %exitcond, label %loop, label %exit
exit:
ret void
}
define void @test_scalar_steps(ptr nocapture %a, ptr noalias %b, i64 %size) !dbg !39 {
; CHECK-LABEL: define void @test_scalar_steps(
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 2
; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[OFFSET_IDX]], 0, !dbg [[LOC8:!.+]]
; CHECK-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 2, !dbg [[LOC8]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP6]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP7]]
; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[TMP6]]
; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[TMP7]]
; CHECK-NEXT: [[TMP12:%.*]] = load i32, ptr [[TMP8]], align 4
; CHECK-NEXT: [[TMP13:%.*]] = load i32, ptr [[TMP9]], align 4
; CHECK-NEXT: store i32 [[TMP12]], ptr [[TMP10]], align 4
; CHECK-NEXT: store i32 [[TMP13]], ptr [[TMP11]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], %n.vec
; CHECK-NEXT: br i1 [[TMP20]], label %middle.block, label %vector.body
;
entry:
br label %loop
loop:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ], !dbg !41
%arrayidx.1 = getelementptr inbounds i32, ptr %a, i64 %iv
%arrayidx.2 = getelementptr inbounds i32, ptr %b, i64 %iv
%l.1 = load i32, ptr %arrayidx.1, align 4
store i32 %l.1, ptr %arrayidx.2
%iv.next = add i64 %iv, 2
%exitcond = icmp ne i64 %iv.next, %size
br i1 %exitcond, label %loop, label %exit
exit:
ret void
}
; CHECK: ![[LOC2]] = !DILocation(line: 3
; CHECK: ![[BR_LOC]] = !DILocation(line: 5,
; CHECK: ![[LOC1]] = !DILocation(line: 6
; CHECK: [[LOC3]] = !DILocation(line: 137
; CHECK: [[LOC4]] = !DILocation(line: 210
; CHECK: [[LOC5]] = !DILocation(line: 320
; CHECK: [[LOC6]] = !DILocation(line: 430
; CHECK: [[LOC7]] = !DILocation(line: 540
; CHECK: [[LOC8]] = !DILocation(line: 650
declare void @llvm.dbg.declare(metadata, metadata, metadata)
declare void @llvm.dbg.value(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!18, !27}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 185038) (llvm/trunk 185097)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "-", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!2 = !{}
!4 = distinct !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3, file: !5, scope: !6, type: !7, retainedNodes: !12)
!5 = !DIFile(filename: "<stdin>", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!6 = !DIFile(filename: "<stdin>", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!7 = !DISubroutineType(types: !8)
!8 = !{!9, !10, !11}
!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
!11 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
!12 = !{!13, !14, !15, !16}
!13 = !DILocalVariable(name: "a", line: 3, arg: 1, scope: !4, file: !6, type: !10)
!14 = !DILocalVariable(name: "size", line: 3, arg: 2, scope: !4, file: !6, type: !11)
!15 = !DILocalVariable(name: "sum", line: 4, scope: !4, file: !6, type: !11)
!16 = !DILocalVariable(name: "i", line: 5, scope: !17, file: !6, type: !11)
!17 = distinct !DILexicalBlock(line: 5, column: 0, file: !5, scope: !4)
!18 = !{i32 2, !"Dwarf Version", i32 3}
!19 = !DILocation(line: 3, scope: !4)
!20 = !DILocation(line: 4, scope: !4)
!21 = !DILocation(line: 5, scope: !17)
!22 = !DILocation(line: 6, scope: !17)
!26 = !DILocation(line: 7, scope: !4)
!27 = !{i32 1, !"Debug Info Version", i32 3}
!28 = !DILocation(line: 137, column: 44, scope: !29)
!29 = distinct !DILexicalBlock(scope: !30, file: !5, line: 137, column: 2)
!30 = distinct !DISubprogram(name: "Place", scope: !5, file: !5, line: 135, scopeLine: 135, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
!31 = distinct !DISubprogram(name: "Place", scope: !5, file: !5, line: 135, scopeLine: 135, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
!32 = distinct !DILexicalBlock(scope: !31, file: !5, line: 137, column: 2)
!33 = !DILocation(line: 210, column: 44, scope: !32)
!34 = !DILocation(line: 320, column: 44, scope: !32)
!35 = distinct !DISubprogram(name: "test_misc", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3, file: !5, scope: !6, type: !7, retainedNodes: !2)
!36 = distinct !DILexicalBlock(scope: !35, file: !5, line: 137, column: 2)
!37 = !DILocation(line: 430, column: 44, scope: !36)
!38 = !DILocation(line: 540, column: 44, scope: !36)
!39 = distinct !DISubprogram(name: "test_scalar_Steps", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3, file: !5, scope: !6, type: !7, retainedNodes: !2)
!40 = distinct !DILexicalBlock(scope: !39, file: !5, line: 137, column: 2)
!41 = !DILocation(line: 650, column: 44, scope: !40)