1 files changed, 89 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/debugloc.ll b/llvm/test/Transforms/LoopVectorize/debugloc.ll
new file mode 100644
index 00000000000..e9ec8662ce4
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/debugloc.ll
@@ -0,0 +1,89 @@
+; RUN: opt -S < %s -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: for.body.lr.ph
+; CHECK:   min.iters.check = icmp ult i64 {{.*}}, 2, !dbg !{{[0-9]+}}
+; CHECK: vector.body
+; CHECK:   index {{.*}}, !dbg ![[LOC:[0-9]+]]
+; CHECK:   getelementptr inbounds i32, i32* %a, {{.*}}, !dbg ![[LOC]]
+; CHECK:   load <2 x i32>, <2 x i32>* {{.*}}, !dbg ![[LOC]]
+; CHECK:   add <2 x i32> {{.*}}, !dbg ![[LOC]]
+; CHECK:   add i64 %index, 2, !dbg ![[LOC]]
+; CHECK:   icmp eq i64 %index.next, %n.vec, !dbg ![[LOC]]
+; CHECK: middle.block
+; CHECK:   add <2 x i32> %{{.*}}, %rdx.shuf, !dbg ![[LOC]]
+; CHECK:   extractelement <2 x i32> %bin.rdx, i32 0, !dbg ![[LOC]]
+
+define i32 @f(i32* nocapture %a, i32 %size) #0 !dbg !4 {
+entry:
+  call void @llvm.dbg.value(metadata i32* %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.05 = phi i32 [ 0, %for.body.lr.ph ], [ %add, %for.body ]
+  %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv, !dbg !22
+  %0 = load i32, i32* %arrayidx, align 4, !dbg !22
+  %add = add i32 %0, %sum.05, !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 !22
+  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 [ %add, %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
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, metadata, metadata) #1
+
+attributes #0 = { nounwind readonly ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+
+!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}