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7d6813a6c8
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
36 lines
1.6 KiB
LLVM
36 lines
1.6 KiB
LLVM
; RUN: llc -split-dwarf-file=foo.dwo -mtriple=powerpc64-unknown-linux-gnu -O0 -filetype=asm < %s | FileCheck %s
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; FIXME: add relocation and DWARF expression support to llvm-dwarfdump & use
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; that here instead of raw assembly printing
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; CHECK: debug_info.dwo
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; 3 bytes of data in this DW_FORM_block1 representation of the location of 'tls'
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; CHECK: .byte 3{{ *}}# DW_AT_location
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; DW_OP_const_index (0xfx == 252) to refer to the debug_addr table
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; CHECK-NEXT: .byte 252
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; an index of zero into the debug_addr table
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; CHECK-NEXT: .byte 0
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; DW_OP_GNU_push_tls_address
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; CHECK-NEXT: .byte 224
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; check that the expected TLS address description is the first thing in the debug_addr section
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; CHECK: .section .debug_addr,"",@progbits
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; CHECK-NEXT: .quad tls@DTPREL+32768
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source_filename = "test/DebugInfo/PowerPC/tls-fission.ll"
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@tls = thread_local global i32 0, align 4, !dbg !0
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!llvm.dbg.cu = !{!4}
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!llvm.module.flags = !{!7, !8}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "tls", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "tls.cpp", directory: "/tmp")
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!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4 ", isOptimized: false, runtimeVersion: 0, splitDebugFilename: "tls.dwo", emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
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!5 = !{}
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!6 = !{!0}
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!7 = !{i32 2, !"Dwarf Version", i32 3}
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!8 = !{i32 1, !"Debug Info Version", i32 3}
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