73ec065604
This reverts commit 289920 (again). I forgot to implement a Bitcode upgrade for the case where a DIGlobalVariable has not DIExpression. Unfortunately it is not possible to safely upgrade these variables without adding a flag to the bitcode record indicating which version they are. My plan of record is to roll the planned follow-up patch that adds a unit: field to DIGlobalVariable into this patch before recomitting. This way we only need one Bitcode upgrade for both changes (with a version flag in the bitcode record to safely distinguish the record formats). Sorry for the churn! llvm-svn: 289982
71 lines
3.0 KiB
LLVM
71 lines
3.0 KiB
LLVM
; RUN: llc < %s -O0 -verify-machineinstrs -mtriple=wasm32-unknown-unknown | FileCheck %s
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; CHECK: BB#0
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; CHECK: #DEBUG_VALUE: usage:self <- %vreg4
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; CHECK: BB#1
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; CHECK: DW_TAG_variable
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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%0 = type opaque
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@key = external local_unnamed_addr global [15 x i8], align 1
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@.str = external unnamed_addr constant [33 x i8], align 1
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; Function Attrs: nounwind
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define internal i32 @0(i8*) local_unnamed_addr !dbg !14 !type !22 {
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tail call void @llvm.dbg.value(metadata i8* %0, i64 0, metadata !21, metadata !23), !dbg !24
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%2 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str, i32 0, i32 0), i8* %0), !dbg !25
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br i1 1, label %a, label %b
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a:
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%3 = add i32 %2, %2
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br label %c
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b:
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%4 = sub i32 %2, %2
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br label %c
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c:
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%5 = phi i32 [ %3, %a ], [ %4, %b ]
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%6 = add i32 ptrtoint (i32 (i8*)* @0 to i32), %5
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ret i32 %6, !dbg !26
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}
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; Function Attrs: nounwind
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declare i32 @printf(i8* nocapture readonly, ...) local_unnamed_addr
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 273884) (llvm/trunk 273897)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3)
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!1 = !DIFile(filename: "crash.c", directory: "wasm/tests")
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!2 = !{}
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!3 = !{!4}
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!4 = distinct !DIGlobalVariable(name: "key", scope: !0, file: !1, line: 7, type: !5, isLocal: false, isDefinition: true)
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!5 = !DICompositeType(tag: DW_TAG_array_type, baseType: !6, size: 120, align: 8, elements: !9)
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!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint8_t", file: !7, line: 185, baseType: !8)
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!7 = !DIFile(filename: "wasm/emscripten/system/include/libc/bits/alltypes.h", directory: "wasm/tests")
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!8 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
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!9 = !{!10}
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!10 = !DISubrange(count: 15)
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!11 = !{i32 2, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{!"clang version 3.9.0 (trunk 273884) (llvm/trunk 273897)"}
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!14 = distinct !DISubprogram(name: "usage", scope: !1, file: !1, line: 15, type: !15, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !20)
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!15 = !DISubroutineType(types: !16)
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!16 = !{!17, !18}
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!17 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !19, size: 32, align: 32)
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!19 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!20 = !{!21}
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!21 = !DILocalVariable(name: "self", arg: 1, scope: !14, file: !1, line: 15, type: !18)
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!22 = !{i64 0, !"_ZTSFiPcE"}
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!23 = !DIExpression()
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!24 = !DILocation(line: 15, column: 17, scope: !14)
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!25 = !DILocation(line: 16, column: 3, scope: !14)
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!26 = !DILocation(line: 17, column: 3, scope: !14)
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