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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature2; RUN: opt -S -passes=deadargelim < %s | FileCheck %s3 4; Apart from checking if debug metadata is correctly propagated, this also tests whether DW_CC_nocall5; calling convention is added when either return values or arguments are removed.6 7@.str = private constant [1 x i8] zeroinitializer, align 1 ; <ptr> [#uses=1]8 9define ptr @vfs_addname(ptr %name, i32 %len, i32 %hash, i32 %flags) nounwind ssp !dbg !1 {10;11; CHECK-LABEL: define {{[^@]+}}@vfs_addname12; CHECK-SAME: (ptr [[NAME:%.*]], i32 [[LEN:%.*]], i32 [[HASH:%.*]], i32 [[FLAGS:%.*]]) #[[ATTR0:[0-9]+]] !dbg [[DBG4:![0-9]+]] {13; CHECK-NEXT: entry:14; CHECK-NEXT: #dbg_value(ptr [[NAME]], [[META11:![0-9]+]], !DIExpression(), [[META12:![0-9]+]])15; CHECK-NEXT: #dbg_value(i32 [[LEN]], [[META13:![0-9]+]], !DIExpression(), [[META12]])16; CHECK-NEXT: #dbg_value(i32 [[HASH]], [[META14:![0-9]+]], !DIExpression(), [[META12]])17; CHECK-NEXT: #dbg_value(i32 [[FLAGS]], [[META15:![0-9]+]], !DIExpression(), [[META12]])18; CHECK-NEXT: [[TMP0:%.*]] = call fastcc ptr @add_name_internal(ptr [[NAME]], i32 [[HASH]]) #[[ATTR2:[0-9]+]], !dbg [[DBG16:![0-9]+]]19; CHECK-NEXT: ret ptr [[TMP0]], !dbg [[DBG16]]20;21entry:22 call void @llvm.dbg.value(metadata ptr %name, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)23 call void @llvm.dbg.value(metadata i32 %len, metadata !10, metadata !DIExpression()), !dbg !DILocation(scope: !1)24 call void @llvm.dbg.value(metadata i32 %hash, metadata !11, metadata !DIExpression()), !dbg !DILocation(scope: !1)25 call void @llvm.dbg.value(metadata i32 %flags, metadata !12, metadata !DIExpression()), !dbg !DILocation(scope: !1)26 %0 = call fastcc ptr @add_name_internal(ptr %name, i32 %len, i32 %hash, i8 zeroext 0, i32 %flags) nounwind, !dbg !13 ; <ptr> [#uses=1]27 ret ptr %0, !dbg !1328}29 30declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone31 32define internal fastcc ptr @add_name_internal(ptr %name, i32 %len, i32 %hash, i8 zeroext %extra, i32 %flags) noinline nounwind ssp !dbg !16 {33;34; CHECK-LABEL: define {{[^@]+}}@add_name_internal35; CHECK-SAME: (ptr [[NAME:%.*]], i32 [[HASH:%.*]]) #[[ATTR1:[0-9]+]] !dbg [[DBG18:![0-9]+]] {36; CHECK-NEXT: entry:37; CHECK-NEXT: #dbg_value(ptr [[NAME]], [[META22:![0-9]+]], !DIExpression(), [[META23:![0-9]+]])38; CHECK-NEXT: #dbg_value(i32 poison, [[META24:![0-9]+]], !DIExpression(), [[META23]])39; CHECK-NEXT: #dbg_value(i32 [[HASH]], [[META25:![0-9]+]], !DIExpression(), [[META23]])40; CHECK-NEXT: #dbg_value(i8 poison, [[META26:![0-9]+]], !DIExpression(), [[META23]])41; CHECK-NEXT: #dbg_value(i32 poison, [[META27:![0-9]+]], !DIExpression(), [[META23]])42; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[HASH]], 0, !dbg [[DBG28:![0-9]+]]43; CHECK-NEXT: br i1 [[TMP0]], label [[BB:%.*]], label [[BB1:%.*]], !dbg [[DBG28]]44; CHECK: bb:45; CHECK-NEXT: br label [[BB2:%.*]], !dbg [[DBG30:![0-9]+]]46; CHECK: bb1:47; CHECK-NEXT: br label [[BB2]], !dbg [[DBG31:![0-9]+]]48; CHECK: bb2:49; CHECK-NEXT: [[DOT0:%.*]] = phi ptr [ @.str, [[BB]] ], [ [[NAME]], [[BB1]] ]50; CHECK-NEXT: ret ptr [[DOT0]], !dbg [[DBG31]]51;52entry:53 call void @llvm.dbg.value(metadata ptr %name, metadata !15, metadata !DIExpression()), !dbg !DILocation(scope: !16)54 call void @llvm.dbg.value(metadata i32 %len, metadata !20, metadata !DIExpression()), !dbg !DILocation(scope: !16)55 call void @llvm.dbg.value(metadata i32 %hash, metadata !21, metadata !DIExpression()), !dbg !DILocation(scope: !16)56 call void @llvm.dbg.value(metadata i8 %extra, metadata !22, metadata !DIExpression()), !dbg !DILocation(scope: !16)57 call void @llvm.dbg.value(metadata i32 %flags, metadata !23, metadata !DIExpression()), !dbg !DILocation(scope: !16)58 %0 = icmp eq i32 %hash, 0, !dbg !24 ; <i1> [#uses=1]59 br i1 %0, label %bb, label %bb1, !dbg !2460 61bb: ; preds = %entry62 br label %bb2, !dbg !2663 64bb1: ; preds = %entry65 br label %bb2, !dbg !2766 67bb2: ; preds = %bb1, %bb68 %.0 = phi ptr [ @.str, %bb ], [ %name, %bb1 ] ; <ptr> [#uses=1]69 ret ptr %.0, !dbg !2770}71 72declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone73 74; CHECK: attributes #0 = { nounwind ssp }75; CHECK: attributes #1 = { noinline nounwind ssp }76 77!llvm.dbg.cu = !{!3}78!llvm.module.flags = !{!30}79!0 = !DILocalVariable(name: "name", line: 8, arg: 1, scope: !1, file: !2, type: !6)80!1 = distinct !DISubprogram(name: "vfs_addname", linkageName: "vfs_addname", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !28, scope: !2, type: !4)81!2 = !DIFile(filename: "tail.c", directory: "/Users/echeng/LLVM/radars/r7927803/")82!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", isOptimized: true, emissionKind: FullDebug, file: !28, enums: !29, retainedTypes: !29)83!4 = !DISubroutineType(types: !5)84!5 = !{!6, !6, !9, !9, !9}85!6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !28, scope: !2, baseType: !7)86!7 = !DIDerivedType(tag: DW_TAG_const_type, size: 8, align: 8, file: !28, scope: !2, baseType: !8)87!8 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)88!9 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)89!10 = !DILocalVariable(name: "len", line: 9, arg: 2, scope: !1, file: !2, type: !9)90!11 = !DILocalVariable(name: "hash", line: 10, arg: 3, scope: !1, file: !2, type: !9)91!12 = !DILocalVariable(name: "flags", line: 11, arg: 4, scope: !1, file: !2, type: !9)92!13 = !DILocation(line: 13, scope: !14)93!14 = distinct !DILexicalBlock(line: 12, column: 0, file: !28, scope: !1)94!15 = !DILocalVariable(name: "name", line: 17, arg: 1, scope: !16, file: !2, type: !6)95; CHECK: !DISubprogram(name: "add_name_internal"96!16 = distinct !DISubprogram(name: "add_name_internal", linkageName: "add_name_internal", line: 22, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, file: !28, scope: !2, type: !17)97!17 = !DISubroutineType(types: !18)98!18 = !{!6, !6, !9, !9, !19, !9}99!19 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)100!20 = !DILocalVariable(name: "len", line: 18, arg: 2, scope: !16, file: !2, type: !9)101!21 = !DILocalVariable(name: "hash", line: 19, arg: 3, scope: !16, file: !2, type: !9)102!22 = !DILocalVariable(name: "extra", line: 20, arg: 4, scope: !16, file: !2, type: !19)103!23 = !DILocalVariable(name: "flags", line: 21, arg: 5, scope: !16, file: !2, type: !9)104!24 = !DILocation(line: 23, scope: !25)105!25 = distinct !DILexicalBlock(line: 22, column: 0, file: !28, scope: !16)106!26 = !DILocation(line: 24, scope: !25)107!27 = !DILocation(line: 26, scope: !25)108!28 = !DIFile(filename: "tail.c", directory: "/Users/echeng/LLVM/radars/r7927803/")109!29 = !{}110!30 = !{i32 1, !"Debug Info Version", i32 3}111