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      1 ; RUN: opt < %s -instcombine -o /dev/null  -pass-remarks-output=%t -S \
      2 ; RUN:     -pass-remarks=instcombine 2>&1 | FileCheck %s
      3 ; RUN: cat %t | FileCheck -check-prefix=YAML %s
      4 ; RUN: opt < %s -passes='require<opt-remark-emit>,instcombine' -o /dev/null \
      5 ; RUN:     -pass-remarks-output=%t -S -pass-remarks=instcombine 2>&1 | FileCheck %s
      6 ; RUN: cat %t | FileCheck -check-prefix=YAML %s
      7 
      8 ; CHECK:      remark: libcalls-opt-remarks.c:10:10: folded strlen(select) to select of constants{{$}}
      9 ; CHECK-NOT:  remark:
     10 
     11 ; YAML:      --- !Passed
     12 ; YAML-NEXT: Pass:            instcombine
     13 ; YAML-NEXT: Name:            simplify-libcalls
     14 ; YAML-NEXT: DebugLoc:        { File: libcalls-opt-remarks.c, Line: 10, Column: 10 }
     15 ; YAML-NEXT: Function:        f1
     16 ; YAML-NEXT: Args:
     17 ; YAML-NEXT:   - String:          'folded strlen(select) to select of constants'
     18 ; YAML-NEXT: ...
     19 
     20 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
     21 
     22 declare i32 @strlen(i8*)
     23 
     24 @hello = constant [6 x i8] c"hello\00"
     25 @longer = constant [7 x i8] c"longer\00"
     26 
     27 define i32 @f1(i1) !dbg !7 {
     28   %hello = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0, !dbg !10
     29   %longer = getelementptr [7 x i8], [7 x i8]* @longer, i32 0, i32 0, !dbg !12
     30   %2 = select i1 %0, i8* %hello, i8* %longer, !dbg !9
     31   %3 = call i32 @strlen(i8* %2), !dbg !14
     32   ret i32 %3, !dbg !16
     33 }
     34 
     35 
     36 
     37 !llvm.dbg.cu = !{!0}
     38 !llvm.module.flags = !{!3, !4, !5}
     39 !llvm.ident = !{!6}
     40 
     41 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Apple LLVM version 8.1.0 (clang-802.0.42)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
     42 !1 = !DIFile(filename: "libcalls-opt-remarks.c", directory: "/tmp")
     43 !2 = !{}
     44 !3 = !{i32 2, !"Dwarf Version", i32 4}
     45 !4 = !{i32 2, !"Debug Info Version", i32 3}
     46 !5 = !{i32 1, !"PIC Level", i32 2}
     47 !6 = !{!"Apple LLVM version 8.1.0 (clang-802.0.42)"}
     48 !7 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 9, type: !8, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
     49 !8 = !DISubroutineType(types: !2)
     50 !9 = !DILocation(line: 10, column: 17, scope: !7)
     51 !10 = !DILocation(line: 10, column: 24, scope: !11)
     52 !11 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)
     53 !12 = !DILocation(line: 10, column: 32, scope: !13)
     54 !13 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 2)
     55 !14 = !DILocation(line: 10, column: 10, scope: !15)
     56 !15 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 3)
     57 !16 = !DILocation(line: 10, column: 3, scope: !15)
     58