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llvm-tms34010/llvm/test/Transforms/LoopVectorize/debugloc.ll
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Jiang Ning 81518d06ac [DebugInfo] Verify DISubprogram has a type (#194556) 
Require DISubprogram metadata to carry a non-null type in the verifier.

LangRef specifies that the `type:` field of `DISubprogram` points to a
`DISubroutineType`. This patch diagnoses malformed debug info where the
field is omitted or resolves to null, while preserving the existing wrong-type
diagnostic for non-DISubroutineType operands.

Update hand-written LLVM IR tests to use valid DISubprogram metadata
where they are not intentionally testing malformed debug info. These tests now 
use minimal DISubroutineType metadata so the new verifier check does not mask 
their original coverage.

Fixes #186557
2026-05-04 11:32:19 +01:00

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; 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:
br label %for.body, !dbg !21
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:
%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:
%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]], i64 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: [[GEP:%.+]] = getelementptr inbounds i32, ptr %dst, i64 %index
; 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]], i64 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: [[GEP:%.+]] = getelementptr inbounds i32, ptr %dst, i64 %index, !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:%.*]] = shl i64 [[INDEX]], 1
; CHECK-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], 2, !dbg [[LOC8:!.+]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP7]]
; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[OFFSET_IDX]]
; 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
!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, type: !7, unit: !0)
!31 = distinct !DISubprogram(name: "Place", scope: !5, file: !5, line: 135, scopeLine: 135, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, type: !7, 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)
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