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; 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: cmp.zero = icmp eq i64 {{.*}}, 0, !dbg ![[LOC:[0-9]+]]
; CHECK: vector.body
; CHECK: index {{.*}}, !dbg ![[LOC]]
; CHECK: getelementptr inbounds i32, i32* %a, {{.*}}, !dbg ![[LOC2:[0-9]+]]
; CHECK: load <2 x i32>, <2 x i32>* {{.*}}, !dbg ![[LOC2]]
; CHECK: add <2 x i32> {{.*}}, !dbg ![[LOC2]]
; CHECK: add i64 %index, 2, !dbg ![[LOC]]
; CHECK: icmp eq i64 %index.next, %end.idx.rnd.down, !dbg ![[LOC]]
; CHECK: middle.block
; CHECK: add <2 x i32> %rdx.vec.exit.phi, %rdx.shuf, !dbg ![[LOC2]]
; CHECK: extractelement <2 x i32> %bin.rdx, i32 0, !dbg ![[LOC2]]
define i32 @f(i32* nocapture %a, i32 %size) #0 {
entry:
tail call void @llvm.dbg.value(metadata i32* %a, i64 0, metadata !13, metadata !MDExpression()), !dbg !19
tail call void @llvm.dbg.value(metadata i32 %size, i64 0, metadata !14, metadata !MDExpression()), !dbg !19
tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !15, metadata !MDExpression()), !dbg !20
tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !16, metadata !MDExpression()), !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
tail call void @llvm.dbg.value(metadata i32 %add.lcssa, i64 0, metadata !15, metadata !MDExpression()), !dbg !22
%indvars.iv.next = add i64 %indvars.iv, 1, !dbg !21
tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !16, metadata !MDExpression()), !dbg !21
%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !21
%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 [ %add, %for.body ]
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, i64, 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 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 185038) (llvm/trunk 185097)", isOptimized: true, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !MDFile(filename: "-", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!2 = !{i32 0}
!3 = !{!4}
!4 = !MDSubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !6, type: !7, function: i32 (i32*, i32)* @f, variables: !12)
!5 = !MDFile(filename: "<stdin>", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!6 = !MDFile(filename: "<stdin>", directory: "/Volumes/Data/backedup/dev/os/llvm/debug")
!7 = !MDSubroutineType(types: !8)
!8 = !{!9, !10, !11}
!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!10 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
!11 = !MDBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
!12 = !{!13, !14, !15, !16}
!13 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 3, arg: 1, scope: !4, file: !6, type: !10)
!14 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "size", line: 3, arg: 2, scope: !4, file: !6, type: !11)
!15 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "sum", line: 4, scope: !4, file: !6, type: !11)
!16 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 5, scope: !17, file: !6, type: !11)
!17 = distinct !MDLexicalBlock(line: 5, column: 0, file: !5, scope: !4)
!18 = !{i32 2, !"Dwarf Version", i32 3}
!19 = !MDLocation(line: 3, scope: !4)
!20 = !MDLocation(line: 4, scope: !4)
!21 = !MDLocation(line: 5, scope: !17)
!22 = !MDLocation(line: 6, scope: !17)
!26 = !MDLocation(line: 7, scope: !4)
!27 = !{i32 1, !"Debug Info Version", i32 3}
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