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09b5c9c24d
Finish off PR23080 by renaming the debug info IR constructs from `MD*` to `DI*`. The last of the `DIDescriptor` classes were deleted in r235356, and the last of the related typedefs removed in r235413, so this has all baked for about a week. Note: If you have out-of-tree code (like a frontend), I recommend that you get everything compiling and tests passing with the *previous* commit before updating to this one. It'll be easier to keep track of what code is using the `DIDescriptor` hierarchy and what you've already updated, and I think you're extremely unlikely to insert bugs. YMMV of course. Back to *this* commit: I did this using the rename-md-di-nodes.sh upgrade script I've attached to PR23080 (both code and testcases) and filtered through clang-format-diff.py. I edited the tests for test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns were off-by-three. It should work on your out-of-tree testcases (and code, if you've followed the advice in the previous paragraph). Some of the tests are in badly named files now (e.g., test/Assembler/invalid-mdcompositetype-missing-tag.ll should be 'dicompositetype'); I'll come back and move the files in a follow-up commit. llvm-svn: 236120
63 lines
3.2 KiB
LLVM
63 lines
3.2 KiB
LLVM
; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -S | FileCheck %s
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; Checks that llvm.dbg.declare instructions are updated
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; accordingly as we merge allocas.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i32 @_Z3zzzi(i32 %p) nounwind uwtable sanitize_address {
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entry:
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%p.addr = alloca i32, align 4
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%r = alloca i32, align 4
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store volatile i32 %p, i32* %p.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %p.addr, metadata !10, metadata !DIExpression()), !dbg !11
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call void @llvm.dbg.declare(metadata i32* %r, metadata !12, metadata !DIExpression()), !dbg !14
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%0 = load i32, i32* %p.addr, align 4, !dbg !14
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%add = add nsw i32 %0, 1, !dbg !14
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store volatile i32 %add, i32* %r, align 4, !dbg !14
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%1 = load i32, i32* %r, align 4, !dbg !15
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ret i32 %1, !dbg !15
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}
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; CHECK: define i32 @_Z3zzzi
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; CHECK: entry:
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; Verify that llvm.dbg.declare calls are in the entry basic block.
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; CHECK-NOT: %entry
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; CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[ARG_ID:[0-9]+]], metadata ![[OPDEREF:[0-9]+]])
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; CHECK-NOT: %entry
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; CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[VAR_ID:[0-9]+]], metadata ![[OPDEREF:[0-9]+]])
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!17}
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!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 169314)", isOptimized: true, emissionKind: 0, file: !16, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1)
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!1 = !{}
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!3 = !{!5}
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!5 = !DISubprogram(name: "zzz", linkageName: "_Z3zzzi", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !16, scope: !6, type: !7, function: i32 (i32)* @_Z3zzzi, variables: !1)
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!6 = !DIFile(filename: "a.cc", directory: "/usr/local/google/llvm_cmake_clang/tmp/debuginfo")
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9, !9}
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "p", line: 1, arg: 1, scope: !5, file: !6, type: !9)
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!11 = !DILocation(line: 1, scope: !5)
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!12 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "r", line: 2, scope: !13, file: !6, type: !9)
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; Verify that debug descriptors for argument and local variable will be replaced
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; with descriptors that end with OpDeref (encoded as 2).
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; CHECK: ![[ARG_ID]] = !DILocalVariable(tag: DW_TAG_arg_variable, name: "p", arg: 1,{{.*}} line: 1
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; CHECK: ![[OPDEREF]] = !DIExpression(DW_OP_deref)
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; CHECK: ![[VAR_ID]] = !DILocalVariable(tag: DW_TAG_auto_variable, name: "r",{{.*}} line: 2
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; Verify that there are no more variable descriptors.
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; CHECK-NOT: !DILocalVariable(tag: DW_TAG_arg_variable
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; CHECK-NOT: !DILocalVariable(tag: DW_TAG_auto_variable
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!13 = distinct !DILexicalBlock(line: 1, column: 0, file: !16, scope: !5)
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!14 = !DILocation(line: 2, scope: !13)
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!15 = !DILocation(line: 3, scope: !13)
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!16 = !DIFile(filename: "a.cc", directory: "/usr/local/google/llvm_cmake_clang/tmp/debuginfo")
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!17 = !{i32 1, !"Debug Info Version", i32 3}
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