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      1 ; RUN: opt < %s -mem2reg -S | FileCheck %s
      2 
      3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
      4 target triple = "x86_64-unknown-linux-gnu"
      5 
      6 define dso_local x86_fp80 @powixf2() !dbg !1 {
      7 entry:
      8   %r = alloca x86_fp80, align 16
      9   call void @llvm.dbg.declare(metadata x86_fp80* %r, metadata !14, metadata !DIExpression()), !dbg !15
     10   br i1 undef, label %if.then, label %if.end, !dbg !16
     11 
     12 if.then:                                          ; preds = %entry
     13 ; CHECK-LABEL: if.then:
     14 ; CHECK: %mul = fmul x86_fp80
     15 ; CHECK: call void @llvm.dbg.value(metadata x86_fp80 %mul, metadata {{.*}}, metadata !DIExpression())
     16   %mul = fmul x86_fp80 undef, undef, !dbg !18
     17   store x86_fp80 %mul, x86_fp80* %r, align 16, !dbg !18
     18   br label %if.end, !dbg !20
     19 
     20 if.end:                                           ; preds = %if.then, %entry
     21 ; CHECK-LABEL: if.end:
     22 ; CHECK: %r.0 = phi x86_fp80
     23 ; CHECK: call void @llvm.dbg.value(metadata x86_fp80 %r.0, metadata {{.*}}, metadata !DIExpression())
     24   %out = load x86_fp80, x86_fp80* %r, align 16, !dbg !21
     25   ret x86_fp80 %out, !dbg !22
     26 }
     27 
     28 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
     29 
     30 attributes #0 = { nounwind readnone speculatable }
     31 
     32 !llvm.dbg.cu = !{}
     33 !llvm.module.flags = !{!0}
     34 
     35 !0 = !{i32 2, !"Debug Info Version", i32 3}
     36 !1 = distinct !DISubprogram(name: "__powixf2", scope: !2, file: !2, line: 22, type: !3, isLocal: false, isDefinition: true, scopeLine: 23, flags: DIFlagPrototyped, isOptimized: true, unit: !11, retainedNodes: !13)
     37 !2 = !DIFile(filename: "powixf2.c", directory: "")
     38 !3 = !DISubroutineType(types: !4)
     39 !4 = !{!5, !5, !6}
     40 !5 = !DIBasicType(name: "long double", size: 128, encoding: DW_ATE_float)
     41 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "si_int", file: !7, line: 28, baseType: !8)
     42 !7 = !DIFile(filename: "int_types.h", directory: "")
     43 !8 = !DIDerivedType(tag: DW_TAG_typedef, name: "int32_t", file: !9, line: 39, baseType: !10)
     44 !9 = !DIFile(filename: "/usr/include/stdint.h", directory: "")
     45 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
     46 !11 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 7.0.0 () ()", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !12)
     47 !12 = !{}
     48 !13 = !{!14}
     49 !14 = !DILocalVariable(name: "r", scope: !1, file: !2, line: 25, type: !5)
     50 !15 = !DILocation(line: 25, column: 17, scope: !1)
     51 !16 = !DILocation(line: 28, column: 13, scope: !17)
     52 !17 = distinct !DILexicalBlock(scope: !1, file: !2, line: 27, column: 5)
     53 !18 = !DILocation(line: 29, column: 15, scope: !19)
     54 !19 = distinct !DILexicalBlock(scope: !17, file: !2, line: 28, column: 13)
     55 !20 = !DILocation(line: 29, column: 13, scope: !19)
     56 !21 = !DILocation(line: 35, column: 22, scope: !1)
     57 !22 = !DILocation(line: 35, column: 5, scope: !1)
     58