1; RUN: llc < %s -verify-machineinstrs -mtriple=wasm32-unknown-unknown | FileCheck %s 2; RUN: llc < %s -verify-machineinstrs -mtriple=wasm32-unknown-unknown -fast-isel | FileCheck --check-prefix=CHECK-FAST %s 3 4; CHECK: DW_TAG_variable 5; CHECK-FAST: DW_TAG_variable 6 7; Test that llvm.dbg.declare() instrinsics do not crash the backend 8 9source_filename = "test/DebugInfo/WebAssembly/dbg-declare.ll" 10target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 11target triple = "wasm32-unknown-unknown" 12 13@key = external global [15 x i8], align 1 14 15define internal zeroext i8 @0(i32, i8 zeroext) !dbg !15 !type !20 { 16 %3 = alloca i32, align 4 17 %4 = alloca i8, align 1 18 store i32 %0, i32* %3, align 4 19 call void @llvm.dbg.declare(metadata i32* %3, metadata !21, metadata !22), !dbg !23 20 store i8 %1, i8* %4, align 1 21 call void @llvm.dbg.declare(metadata i8* %4, metadata !24, metadata !22), !dbg !25 22 %5 = load i8, i8* %4, align 1, !dbg !26 23 %6 = zext i8 %5 to i32, !dbg !26 24 %7 = load i32, i32* %3, align 4, !dbg !27 25 %8 = urem i32 %7, 15, !dbg !28 26 %9 = getelementptr inbounds [15 x i8], [15 x i8]* @key, i32 0, i32 %8, !dbg !29 27 %10 = load i8, i8* %9, align 1, !dbg !29 28 %11 = zext i8 %10 to i32, !dbg !29 29 %12 = xor i32 %6, %11, !dbg !30 30 %13 = trunc i32 %12 to i8, !dbg !31 31 ret i8 %13, !dbg !32 32} 33 34; Function Attrs: nounwind readnone 35 36declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 37 38attributes #0 = { nounwind readnone } 39 40!llvm.dbg.cu = !{!0} 41!llvm.module.flags = !{!12, !13} 42!llvm.ident = !{!14} 43 44!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 273884) (llvm/trunk 273897)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3) 45!1 = !DIFile(filename: "crash.c", directory: "wasm/tests") 46!2 = !{} 47!3 = !{!4} 48!4 = distinct !DIGlobalVariableExpression(var: !5, expr: !DIExpression()) 49!5 = !DIGlobalVariable(name: "key", scope: !0, file: !1, line: 7, type: !6, isLocal: false, isDefinition: true) 50!6 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, size: 120, align: 8, elements: !10) 51!7 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint8_t", file: !8, line: 185, baseType: !9) 52!8 = !DIFile(filename: "wasm/emscripten/system/include/libc/bits/alltypes.h", directory: "wasm/tests") 53!9 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char) 54!10 = !{!11} 55!11 = !DISubrange(count: 15) 56!12 = !{i32 2, !"Dwarf Version", i32 4} 57!13 = !{i32 2, !"Debug Info Version", i32 3} 58!14 = !{!"clang version 3.9.0 (trunk 273884) (llvm/trunk 273897)"} 59!15 = distinct !DISubprogram(name: "decode", scope: !1, file: !1, line: 11, type: !16, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) 60!16 = !DISubroutineType(types: !17) 61!17 = !{!7, !18, !7} 62!18 = !DIDerivedType(tag: DW_TAG_typedef, name: "size_t", file: !8, line: 124, baseType: !19) 63!19 = !DIBasicType(name: "long unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) 64!20 = !{i64 0, !"_ZTSFhmhE"} 65!21 = !DILocalVariable(name: "i", arg: 1, scope: !15, file: !1, line: 11, type: !18) 66!22 = !DIExpression() 67!23 = !DILocation(line: 11, column: 23, scope: !15) 68!24 = !DILocalVariable(name: "v", arg: 2, scope: !15, file: !1, line: 11, type: !7) 69!25 = !DILocation(line: 11, column: 34, scope: !15) 70!26 = !DILocation(line: 12, column: 11, scope: !15) 71!27 = !DILocation(line: 12, column: 19, scope: !15) 72!28 = !DILocation(line: 12, column: 21, scope: !15) 73!29 = !DILocation(line: 12, column: 15, scope: !15) 74!30 = !DILocation(line: 12, column: 13, scope: !15) 75!31 = !DILocation(line: 12, column: 10, scope: !15) 76!32 = !DILocation(line: 12, column: 3, scope: !15) 77 78