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https://github.com/c64scene-ar/llvm-6502.git
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e3ae958f94
Change `DwarfStringPool` to calculate byte offsets on-the-fly, and update `DwarfUnit::getLocalString()` to use a `DIEInteger` instead of a `DIEDelta` when Dwarf doesn't use relocations (i.e., Mach-O). This eliminates another call to `EmitLabelDifference()`, and drops memory usage from 865 MB down to 861 MB, around 0.5%. (I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`; see r236629 for details.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238114 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
2.0 KiB
LLVM
43 lines
2.0 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=LINUX
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; RUN: llc -mtriple=x86_64-darwin < %s | FileCheck %s --check-prefix=DARWIN
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@yyyy = common global i32 0, align 4
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9}
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!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143009)", isOptimized: true, emissionKind: 0, file: !8, enums: !1, retainedTypes: !1, subprograms: !1, globals: !3, imports: !1)
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!1 = !{}
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!3 = !{!5}
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!5 = !DIGlobalVariable(name: "yyyy", line: 1, isLocal: false, isDefinition: true, scope: null, file: !6, type: !7, variable: i32* @yyyy)
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!6 = !DIFile(filename: "z.c", directory: "/home/nicholas")
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!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !DIFile(filename: "z.c", directory: "/home/nicholas")
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; Verify that "yyyy" ended up in the stringpool.
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; LINUX: .section .debug_str,"MS",@progbits,1
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; LINUX: yyyy
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; DARWIN: .section __DWARF,__debug_str,regular,debug
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; DARWIN: .asciz "yyyy" ## string offset=[[YYYY:[0-9]+]]
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; Verify that we refer to 'yyyy' with a relocation.
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; LINUX: .long .Linfo_string3 # DW_AT_name
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; LINUX-NEXT: .long {{[0-9]+}} # DW_AT_type
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; LINUX-NEXT: # DW_AT_external
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; LINUX-NEXT: .byte 1 # DW_AT_decl_file
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; LINUX-NEXT: .byte 1 # DW_AT_decl_line
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; LINUX-NEXT: .byte 9 # DW_AT_location
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; LINUX-NEXT: .byte 3
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; LINUX-NEXT: .quad yyyy
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; Verify that we refer to 'yyyy' with a direct offset.
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; DARWIN: .long [[YYYY]]
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; DARWIN-NEXT: .long {{[0-9]+}} ## DW_AT_type
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; DARWIN-NEXT: ## DW_AT_external
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; DARWIN-NEXT: .byte 1 ## DW_AT_decl_file
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; DARWIN-NEXT: .byte 1 ## DW_AT_decl_line
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; DARWIN-NEXT: .byte 9 ## DW_AT_location
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; DARWIN-NEXT: .byte 3
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; DARWIN-NEXT: .quad _yyyy
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!9 = !{i32 1, !"Debug Info Version", i32 3}
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