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; RUN: llc -mtriple=x86_64-pc-linux -O2 < %s | FileCheck %s
; RUN: llc -mtriple=x86_64-pc-linux -O2 -regalloc=basic < %s | FileCheck %s
; Test to check .debug_loc support. This test case emits many debug_loc entries.

; CHECK: .short 1 # Loc expr size
; CHECK-NEXT: DW_OP_reg

%0 = type { double }

define hidden %0 @__divsc3(float %a, float %b, float %c, float %d) nounwind readnone !dbg !1 {
entry:
  tail call void @llvm.dbg.value(metadata float %a, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)
  tail call void @llvm.dbg.value(metadata float %b, i64 0, metadata !11, metadata !DIExpression()), !dbg !DILocation(scope: !1)
  tail call void @llvm.dbg.value(metadata float %c, i64 0, metadata !12, metadata !DIExpression()), !dbg !DILocation(scope: !1)
  tail call void @llvm.dbg.value(metadata float %d, i64 0, metadata !13, metadata !DIExpression()), !dbg !DILocation(scope: !1)
  %0 = tail call float @fabsf(float %c) nounwind readnone, !dbg !19 ; <float> [#uses=1]
  %1 = tail call float @fabsf(float %d) nounwind readnone, !dbg !19 ; <float> [#uses=1]
  %2 = fcmp olt float %0, %1, !dbg !19            ; <i1> [#uses=1]
  br i1 %2, label %bb, label %bb1, !dbg !19

bb:                                               ; preds = %entry
  %3 = fdiv float %c, %d, !dbg !20                ; <float> [#uses=3]
  tail call void @llvm.dbg.value(metadata float %3, i64 0, metadata !16, metadata !DIExpression()), !dbg !20
  %4 = fmul float %3, %c, !dbg !21                ; <float> [#uses=1]
  %5 = fadd float %4, %d, !dbg !21                ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %5, i64 0, metadata !14, metadata !DIExpression()), !dbg !21
  %6 = fmul float %3, %a, !dbg !22                ; <float> [#uses=1]
  %7 = fadd float %6, %b, !dbg !22                ; <float> [#uses=1]
  %8 = fdiv float %7, %5, !dbg !22                ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %8, i64 0, metadata !17, metadata !DIExpression()), !dbg !22
  %9 = fmul float %3, %b, !dbg !23                ; <float> [#uses=1]
  %10 = fsub float %9, %a, !dbg !23               ; <float> [#uses=1]
  %11 = fdiv float %10, %5, !dbg !23              ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %11, i64 0, metadata !18, metadata !DIExpression()), !dbg !23
  br label %bb2, !dbg !23

bb1:                                              ; preds = %entry
  %12 = fdiv float %d, %c, !dbg !24               ; <float> [#uses=3]
  tail call void @llvm.dbg.value(metadata float %12, i64 0, metadata !16, metadata !DIExpression()), !dbg !24
  %13 = fmul float %12, %d, !dbg !25              ; <float> [#uses=1]
  %14 = fadd float %13, %c, !dbg !25              ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %14, i64 0, metadata !14, metadata !DIExpression()), !dbg !25
  %15 = fmul float %12, %b, !dbg !26              ; <float> [#uses=1]
  %16 = fadd float %15, %a, !dbg !26              ; <float> [#uses=1]
  %17 = fdiv float %16, %14, !dbg !26             ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %17, i64 0, metadata !17, metadata !DIExpression()), !dbg !26
  %18 = fmul float %12, %a, !dbg !27              ; <float> [#uses=1]
  %19 = fsub float %b, %18, !dbg !27              ; <float> [#uses=1]
  %20 = fdiv float %19, %14, !dbg !27             ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %20, i64 0, metadata !18, metadata !DIExpression()), !dbg !27
  br label %bb2, !dbg !27

bb2:                                              ; preds = %bb1, %bb
  %y.0 = phi float [ %11, %bb ], [ %20, %bb1 ]    ; <float> [#uses=5]
  %x.0 = phi float [ %8, %bb ], [ %17, %bb1 ]     ; <float> [#uses=5]
  %21 = fcmp uno float %x.0, 0.000000e+00, !dbg !28 ; <i1> [#uses=1]
  %22 = fcmp uno float %y.0, 0.000000e+00, !dbg !28 ; <i1> [#uses=1]
  %or.cond = and i1 %21, %22                      ; <i1> [#uses=1]
  br i1 %or.cond, label %bb4, label %bb46, !dbg !28

bb4:                                              ; preds = %bb2
  %23 = fcmp une float %c, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
  %24 = fcmp une float %d, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
  %or.cond93 = or i1 %23, %24                     ; <i1> [#uses=1]
  br i1 %or.cond93, label %bb9, label %bb6, !dbg !29

bb6:                                              ; preds = %bb4
  %25 = fcmp uno float %a, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
  %26 = fcmp uno float %b, 0.000000e+00, !dbg !29 ; <i1> [#uses=1]
  %or.cond94 = and i1 %25, %26                    ; <i1> [#uses=1]
  br i1 %or.cond94, label %bb9, label %bb8, !dbg !29

bb8:                                              ; preds = %bb6
  %27 = tail call float @copysignf(float 0x7FF0000000000000, float %c) nounwind readnone, !dbg !30 ; <float> [#uses=2]
  %28 = fmul float %27, %a, !dbg !30              ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %28, i64 0, metadata !17, metadata !DIExpression()), !dbg !30
  %29 = fmul float %27, %b, !dbg !31              ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %29, i64 0, metadata !18, metadata !DIExpression()), !dbg !31
  br label %bb46, !dbg !31

bb9:                                              ; preds = %bb6, %bb4
  %30 = fcmp ord float %a, 0.000000e+00           ; <i1> [#uses=1]
  %31 = fsub float %a, %a, !dbg !32               ; <float> [#uses=3]
  %32 = fcmp uno float %31, 0.000000e+00          ; <i1> [#uses=1]
  %33 = and i1 %30, %32, !dbg !32                 ; <i1> [#uses=2]
  br i1 %33, label %bb14, label %bb11, !dbg !32

bb11:                                             ; preds = %bb9
  %34 = fcmp ord float %b, 0.000000e+00           ; <i1> [#uses=1]
  %35 = fsub float %b, %b, !dbg !32               ; <float> [#uses=1]
  %36 = fcmp uno float %35, 0.000000e+00          ; <i1> [#uses=1]
  %37 = and i1 %34, %36, !dbg !32                 ; <i1> [#uses=1]
  br i1 %37, label %bb14, label %bb27, !dbg !32

bb14:                                             ; preds = %bb11, %bb9
  %38 = fsub float %c, %c, !dbg !32               ; <float> [#uses=1]
  %39 = fcmp ord float %38, 0.000000e+00          ; <i1> [#uses=1]
  br i1 %39, label %bb15, label %bb27, !dbg !32

bb15:                                             ; preds = %bb14
  %40 = fsub float %d, %d, !dbg !32               ; <float> [#uses=1]
  %41 = fcmp ord float %40, 0.000000e+00          ; <i1> [#uses=1]
  br i1 %41, label %bb16, label %bb27, !dbg !32

bb16:                                             ; preds = %bb15
  %iftmp.0.0 = select i1 %33, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
  %42 = tail call float @copysignf(float %iftmp.0.0, float %a) nounwind readnone, !dbg !33 ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %42, i64 0, metadata !0, metadata !DIExpression()), !dbg !33
  %43 = fcmp ord float %b, 0.000000e+00           ; <i1> [#uses=1]
  %44 = fsub float %b, %b, !dbg !34               ; <float> [#uses=1]
  %45 = fcmp uno float %44, 0.000000e+00          ; <i1> [#uses=1]
  %46 = and i1 %43, %45, !dbg !34                 ; <i1> [#uses=1]
  %iftmp.1.0 = select i1 %46, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
  %47 = tail call float @copysignf(float %iftmp.1.0, float %b) nounwind readnone, !dbg !34 ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %47, i64 0, metadata !11, metadata !DIExpression()), !dbg !34
  %48 = fmul float %42, %c, !dbg !35              ; <float> [#uses=1]
  %49 = fmul float %47, %d, !dbg !35              ; <float> [#uses=1]
  %50 = fadd float %48, %49, !dbg !35             ; <float> [#uses=1]
  %51 = fmul float %50, 0x7FF0000000000000, !dbg !35 ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %51, i64 0, metadata !17, metadata !DIExpression()), !dbg !35
  %52 = fmul float %47, %c, !dbg !36              ; <float> [#uses=1]
  %53 = fmul float %42, %d, !dbg !36              ; <float> [#uses=1]
  %54 = fsub float %52, %53, !dbg !36             ; <float> [#uses=1]
  %55 = fmul float %54, 0x7FF0000000000000, !dbg !36 ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %55, i64 0, metadata !18, metadata !DIExpression()), !dbg !36
  br label %bb46, !dbg !36

bb27:                                             ; preds = %bb15, %bb14, %bb11
  %56 = fcmp ord float %c, 0.000000e+00           ; <i1> [#uses=1]
  %57 = fsub float %c, %c, !dbg !37               ; <float> [#uses=1]
  %58 = fcmp uno float %57, 0.000000e+00          ; <i1> [#uses=1]
  %59 = and i1 %56, %58, !dbg !37                 ; <i1> [#uses=2]
  br i1 %59, label %bb33, label %bb30, !dbg !37

bb30:                                             ; preds = %bb27
  %60 = fcmp ord float %d, 0.000000e+00           ; <i1> [#uses=1]
  %61 = fsub float %d, %d, !dbg !37               ; <float> [#uses=1]
  %62 = fcmp uno float %61, 0.000000e+00          ; <i1> [#uses=1]
  %63 = and i1 %60, %62, !dbg !37                 ; <i1> [#uses=1]
  %64 = fcmp ord float %31, 0.000000e+00          ; <i1> [#uses=1]
  %or.cond95 = and i1 %63, %64                    ; <i1> [#uses=1]
  br i1 %or.cond95, label %bb34, label %bb46, !dbg !37

bb33:                                             ; preds = %bb27
  %.old = fcmp ord float %31, 0.000000e+00        ; <i1> [#uses=1]
  br i1 %.old, label %bb34, label %bb46, !dbg !37

bb34:                                             ; preds = %bb33, %bb30
  %65 = fsub float %b, %b, !dbg !37               ; <float> [#uses=1]
  %66 = fcmp ord float %65, 0.000000e+00          ; <i1> [#uses=1]
  br i1 %66, label %bb35, label %bb46, !dbg !37

bb35:                                             ; preds = %bb34
  %iftmp.2.0 = select i1 %59, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
  %67 = tail call float @copysignf(float %iftmp.2.0, float %c) nounwind readnone, !dbg !38 ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %67, i64 0, metadata !12, metadata !DIExpression()), !dbg !38
  %68 = fcmp ord float %d, 0.000000e+00           ; <i1> [#uses=1]
  %69 = fsub float %d, %d, !dbg !39               ; <float> [#uses=1]
  %70 = fcmp uno float %69, 0.000000e+00          ; <i1> [#uses=1]
  %71 = and i1 %68, %70, !dbg !39                 ; <i1> [#uses=1]
  %iftmp.3.0 = select i1 %71, float 1.000000e+00, float 0.000000e+00 ; <float> [#uses=1]
  %72 = tail call float @copysignf(float %iftmp.3.0, float %d) nounwind readnone, !dbg !39 ; <float> [#uses=2]
  tail call void @llvm.dbg.value(metadata float %72, i64 0, metadata !13, metadata !DIExpression()), !dbg !39
  %73 = fmul float %67, %a, !dbg !40              ; <float> [#uses=1]
  %74 = fmul float %72, %b, !dbg !40              ; <float> [#uses=1]
  %75 = fadd float %73, %74, !dbg !40             ; <float> [#uses=1]
  %76 = fmul float %75, 0.000000e+00, !dbg !40    ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %76, i64 0, metadata !17, metadata !DIExpression()), !dbg !40
  %77 = fmul float %67, %b, !dbg !41              ; <float> [#uses=1]
  %78 = fmul float %72, %a, !dbg !41              ; <float> [#uses=1]
  %79 = fsub float %77, %78, !dbg !41             ; <float> [#uses=1]
  %80 = fmul float %79, 0.000000e+00, !dbg !41    ; <float> [#uses=1]
  tail call void @llvm.dbg.value(metadata float %80, i64 0, metadata !18, metadata !DIExpression()), !dbg !41
  br label %bb46, !dbg !41

bb46:                                             ; preds = %bb35, %bb34, %bb33, %bb30, %bb16, %bb8, %bb2
  %y.1 = phi float [ %80, %bb35 ], [ %y.0, %bb34 ], [ %y.0, %bb33 ], [ %y.0, %bb30 ], [ %55, %bb16 ], [ %29, %bb8 ], [ %y.0, %bb2 ] ; <float> [#uses=2]
  %x.1 = phi float [ %76, %bb35 ], [ %x.0, %bb34 ], [ %x.0, %bb33 ], [ %x.0, %bb30 ], [ %51, %bb16 ], [ %28, %bb8 ], [ %x.0, %bb2 ] ; <float> [#uses=1]
  %81 = fmul float %y.1, 0.000000e+00, !dbg !42   ; <float> [#uses=1]
  %82 = fadd float %y.1, 0.000000e+00, !dbg !42   ; <float> [#uses=1]
  %tmpr = fadd float %x.1, %81, !dbg !42          ; <float> [#uses=1]
  %tmp89 = bitcast float %tmpr to i32             ; <i32> [#uses=1]
  %tmp90 = zext i32 %tmp89 to i64                 ; <i64> [#uses=1]
  %tmp85 = bitcast float %82 to i32               ; <i32> [#uses=1]
  %tmp86 = zext i32 %tmp85 to i64                 ; <i64> [#uses=1]
  %tmp87 = shl i64 %tmp86, 32                     ; <i64> [#uses=1]
  %ins = or i64 %tmp90, %tmp87                    ; <i64> [#uses=1]
  %tmp84 = bitcast i64 %ins to double             ; <double> [#uses=1]
  %mrv75 = insertvalue %0 undef, double %tmp84, 0, !dbg !42 ; <%0> [#uses=1]
  ret %0 %mrv75, !dbg !42
}

declare float @fabsf(float)

declare float @copysignf(float, float) nounwind readnone

declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone

!llvm.dbg.cu = !{!3}
!llvm.module.flags = !{!48}

!0 = !DILocalVariable(name: "a", line: 1921, arg: 1, scope: !1, file: !2, type: !9)
!1 = distinct !DISubprogram(name: "__divsc3", linkageName: "__divsc3", line: 1922, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !3, scopeLine: 1922, file: !45, scope: !2, type: !4, variables: !43)
!2 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: FullDebug, file: !45, enums: !47, retainedTypes: !47, imports:  null)
!4 = !DISubroutineType(types: !5)
!5 = !{!6, !9, !9, !9, !9}
!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "SCtype", line: 170, file: !46, scope: !7, baseType: !8)
!7 = !DIFile(filename: "libgcc2.h", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "complex float", size: 64, align: 32, encoding: DW_ATE_complex_float)
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "SFtype", line: 167, file: !46, scope: !7, baseType: !10)
!10 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
!11 = !DILocalVariable(name: "b", line: 1921, arg: 2, scope: !1, file: !2, type: !9)
!12 = !DILocalVariable(name: "c", line: 1921, arg: 3, scope: !1, file: !2, type: !9)
!13 = !DILocalVariable(name: "d", line: 1921, arg: 4, scope: !1, file: !2, type: !9)
!14 = !DILocalVariable(name: "denom", line: 1923, scope: !15, file: !2, type: !9)
!15 = distinct !DILexicalBlock(line: 1922, column: 0, file: !45, scope: !1)
!16 = !DILocalVariable(name: "ratio", line: 1923, scope: !15, file: !2, type: !9)
!17 = !DILocalVariable(name: "x", line: 1923, scope: !15, file: !2, type: !9)
!18 = !DILocalVariable(name: "y", line: 1923, scope: !15, file: !2, type: !9)
!19 = !DILocation(line: 1929, scope: !15)
!20 = !DILocation(line: 1931, scope: !15)
!21 = !DILocation(line: 1932, scope: !15)
!22 = !DILocation(line: 1933, scope: !15)
!23 = !DILocation(line: 1934, scope: !15)
!24 = !DILocation(line: 1938, scope: !15)
!25 = !DILocation(line: 1939, scope: !15)
!26 = !DILocation(line: 1940, scope: !15)
!27 = !DILocation(line: 1941, scope: !15)
!28 = !DILocation(line: 1946, scope: !15)
!29 = !DILocation(line: 1948, scope: !15)
!30 = !DILocation(line: 1950, scope: !15)
!31 = !DILocation(line: 1951, scope: !15)
!32 = !DILocation(line: 1953, scope: !15)
!33 = !DILocation(line: 1955, scope: !15)
!34 = !DILocation(line: 1956, scope: !15)
!35 = !DILocation(line: 1957, scope: !15)
!36 = !DILocation(line: 1958, scope: !15)
!37 = !DILocation(line: 1960, scope: !15)
!38 = !DILocation(line: 1962, scope: !15)
!39 = !DILocation(line: 1963, scope: !15)
!40 = !DILocation(line: 1964, scope: !15)
!41 = !DILocation(line: 1965, scope: !15)
!42 = !DILocation(line: 1969, scope: !15)
!43 = !{!0, !11, !12, !13, !14, !16, !17, !18}
!45 = !DIFile(filename: "libgcc2.c", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
!46 = !DIFile(filename: "libgcc2.h", directory: "/Users/yash/clean/LG.D/gcc/../../llvmgcc/gcc")
!47 = !{}
!48 = !{i32 1, !"Debug Info Version", i32 3}