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llvm-mirror/test/DebugInfo/ARM/tls.ll
Adrian Prantl 7d6813a6c8 Canonicalize the representation of empty an expression in DIGlobalVariableExpression
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
2017-08-30 18:06:51 +00:00

37 lines
1.3 KiB
LLVM

; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi < %s \
; RUN: | FileCheck %s
; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi -emulated-tls < %s \
; RUN: | FileCheck %s --check-prefix=EMU
; Generated with clang with source
; __thread int x;
source_filename = "test/DebugInfo/ARM/tls.ll"
@x = thread_local global i32 0, align 4, !dbg !0
!llvm.dbg.cu = !{!4}
!llvm.module.flags = !{!7, !8}
!llvm.ident = !{!9}
; 6 byte of data
; CHECK: .byte 6 @ DW_AT_location
; DW_OP_const4u
; CHECK: .byte 12
; The debug relocation of the address of the tls variable
; CHECK: .long x(tlsldo)
; TODO: Add expected output for -emulated-tls tests.
; EMU-NOT: .long x(tlsldo)
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = !DIGlobalVariable(name: "x", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
!2 = !DIFile(filename: "tls.c", directory: "/tmp")
!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!4 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 3.5 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
!5 = !{}
!6 = !{!0}
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 1, !"Debug Info Version", i32 3}
!9 = !{!"clang version 3.5 "}