| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature |
| ; RUN: opt -S -passes=deadargelim < %s | FileCheck %s |
| |
| ; Apart from checking if debug metadata is correctly propagated, this also tests whether DW_CC_nocall |
| ; calling convention is added when either return values or arguments are removed. |
| |
| @.str = private constant [1 x i8] zeroinitializer, align 1 ; <ptr> [#uses=1] |
| |
| define ptr @vfs_addname(ptr %name, i32 %len, i32 %hash, i32 %flags) nounwind ssp !dbg !1 { |
| ; |
| entry: |
| call void @llvm.dbg.value(metadata ptr %name, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1) |
| call void @llvm.dbg.value(metadata i32 %len, metadata !10, metadata !DIExpression()), !dbg !DILocation(scope: !1) |
| call void @llvm.dbg.value(metadata i32 %hash, metadata !11, metadata !DIExpression()), !dbg !DILocation(scope: !1) |
| call void @llvm.dbg.value(metadata i32 %flags, metadata !12, metadata !DIExpression()), !dbg !DILocation(scope: !1) |
| ; CHECK: call fastcc ptr @add_name_internal(ptr %name, i32 %hash) [[NUW:#[0-9]+]], !dbg !{{[0-9]+}} |
| %0 = call fastcc ptr @add_name_internal(ptr %name, i32 %len, i32 %hash, i8 zeroext 0, i32 %flags) nounwind, !dbg !13 ; <ptr> [#uses=1] |
| ret ptr %0, !dbg !13 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone |
| |
| define internal fastcc ptr @add_name_internal(ptr %name, i32 %len, i32 %hash, i8 zeroext %extra, i32 %flags) noinline nounwind ssp !dbg !16 { |
| ; |
| entry: |
| call void @llvm.dbg.value(metadata ptr %name, metadata !15, metadata !DIExpression()), !dbg !DILocation(scope: !16) |
| call void @llvm.dbg.value(metadata i32 %len, metadata !20, metadata !DIExpression()), !dbg !DILocation(scope: !16) |
| call void @llvm.dbg.value(metadata i32 %hash, metadata !21, metadata !DIExpression()), !dbg !DILocation(scope: !16) |
| call void @llvm.dbg.value(metadata i8 %extra, metadata !22, metadata !DIExpression()), !dbg !DILocation(scope: !16) |
| call void @llvm.dbg.value(metadata i32 %flags, metadata !23, metadata !DIExpression()), !dbg !DILocation(scope: !16) |
| %0 = icmp eq i32 %hash, 0, !dbg !24 ; <i1> [#uses=1] |
| br i1 %0, label %bb, label %bb1, !dbg !24 |
| |
| bb: ; preds = %entry |
| br label %bb2, !dbg !26 |
| |
| bb1: ; preds = %entry |
| br label %bb2, !dbg !27 |
| |
| bb2: ; preds = %bb1, %bb |
| %.0 = phi ptr [ @.str, %bb ], [ %name, %bb1 ] ; <ptr> [#uses=1] |
| ret ptr %.0, !dbg !27 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone |
| |
| ; CHECK: attributes #0 = { nounwind ssp } |
| ; CHECK: attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) } |
| ; CHECK: attributes #2 = { noinline nounwind ssp } |
| ; CHECK: attributes [[NUW]] = { nounwind } |
| |
| !llvm.dbg.cu = !{!3} |
| !llvm.module.flags = !{!30} |
| !0 = !DILocalVariable(name: "name", line: 8, arg: 1, scope: !1, file: !2, type: !6) |
| !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) |
| !2 = !DIFile(filename: "tail.c", directory: "/Users/echeng/LLVM/radars/r7927803/") |
| !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) |
| !4 = !DISubroutineType(types: !5) |
| !5 = !{!6, !6, !9, !9, !9} |
| !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !28, scope: !2, baseType: !7) |
| !7 = !DIDerivedType(tag: DW_TAG_const_type, size: 8, align: 8, file: !28, scope: !2, baseType: !8) |
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) |
| !9 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) |
| !10 = !DILocalVariable(name: "len", line: 9, arg: 2, scope: !1, file: !2, type: !9) |
| !11 = !DILocalVariable(name: "hash", line: 10, arg: 3, scope: !1, file: !2, type: !9) |
| !12 = !DILocalVariable(name: "flags", line: 11, arg: 4, scope: !1, file: !2, type: !9) |
| !13 = !DILocation(line: 13, scope: !14) |
| !14 = distinct !DILexicalBlock(line: 12, column: 0, file: !28, scope: !1) |
| !15 = !DILocalVariable(name: "name", line: 17, arg: 1, scope: !16, file: !2, type: !6) |
| ; CHECK: !DISubprogram(name: "add_name_internal" |
| ; CHECK-SAME: type: ![[MD:[0-9]+]] |
| !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) |
| ; CHECK: ![[MD]] = !DISubroutineType(cc: DW_CC_nocall, types: !{{[0-9]+}}) |
| !17 = !DISubroutineType(types: !18) |
| !18 = !{!6, !6, !9, !9, !19, !9} |
| !19 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char) |
| !20 = !DILocalVariable(name: "len", line: 18, arg: 2, scope: !16, file: !2, type: !9) |
| !21 = !DILocalVariable(name: "hash", line: 19, arg: 3, scope: !16, file: !2, type: !9) |
| !22 = !DILocalVariable(name: "extra", line: 20, arg: 4, scope: !16, file: !2, type: !19) |
| !23 = !DILocalVariable(name: "flags", line: 21, arg: 5, scope: !16, file: !2, type: !9) |
| !24 = !DILocation(line: 23, scope: !25) |
| !25 = distinct !DILexicalBlock(line: 22, column: 0, file: !28, scope: !16) |
| !26 = !DILocation(line: 24, scope: !25) |
| !27 = !DILocation(line: 26, scope: !25) |
| !28 = !DIFile(filename: "tail.c", directory: "/Users/echeng/LLVM/radars/r7927803/") |
| !29 = !{} |
| !30 = !{i32 1, !"Debug Info Version", i32 3} |