1; ModuleID = 'dbg_main.o' 2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 3target triple = "x86_64-unknown-linux-gnu" 4 5; Function Attrs: nounwind uwtable 6define i32 @main() #0 !dbg !4 { 7entry: 8 %call = tail call i32 @func1(i32 10) #2, !dbg !11 9 %call1 = tail call i32 @func2(i32 10) #2, !dbg !12 10 ret i32 0, !dbg !13 11} 12 13declare i32 @func1(i32) #1 14 15declare i32 @func2(i32) #1 16 17attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 18attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 19attributes #2 = { nounwind } 20 21!llvm.dbg.cu = !{!0} 22!llvm.module.flags = !{!8, !9} 23!llvm.ident = !{!10} 24 25!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 26!1 = !DIFile(filename: "dbg_main.c", directory: ".") 27!2 = !{} 28!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !2) 29!5 = !DISubroutineType(types: !6) 30!6 = !{!7} 31!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 32!8 = !{i32 2, !"Dwarf Version", i32 4} 33!9 = !{i32 2, !"Debug Info Version", i32 3} 34!10 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"} 35!11 = !DILocation(line: 4, column: 3, scope: !4) 36!12 = !DILocation(line: 5, column: 3, scope: !4) 37!13 = !DILocation(line: 6, column: 1, scope: !4) 38