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https://github.com/c64scene-ar/llvm-6502.git
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737c9f6005
r201608 made llvm corretly handle private globals with MachO. r201622 fixed a bug in it and r201624 and r201625 were changes for using private linkage, assuming that llvm would do the right thing. They all got reverted because r201608 introduced a crash in LTO. This patch includes a fix for that. The issue was that TargetLoweringObjectFile now has to be initialized before we can mangle names of private globals. This is trivially true during the normal codegen pipeline (the asm printer does it), but LTO has to do it manually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201700 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
2.7 KiB
LLVM
72 lines
2.7 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
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; Test all the cases where a L label is safe. Removing any entry from
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; TargetLoweringObjectFileMachO::isSectionAtomizableBySymbols should cause
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; this to fail.
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; We also test some noteworthy cases that require an l label.
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@private1 = private unnamed_addr constant [4 x i8] c"zed\00"
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; CHECK: .section __TEXT,__cstring,cstring_literals
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; CHECK-NEXT: L_private1:
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@private2 = private unnamed_addr constant [5 x i16] [i16 116, i16 101,
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i16 115, i16 116, i16 0]
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; CHECK: .section __TEXT,__ustring
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; CHECK-NEXT: .align 1
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; CHECK-NEXT: l_private2:
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; There is no dedicated 4 byte strings on MachO.
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%struct.NSConstantString = type { i32*, i32, i8*, i32 }
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@private3 = private constant %struct.NSConstantString { i32* null, i32 1992, i8* null, i32 0 }, section "__DATA,__cfstring"
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; CHECK: .section __DATA,__cfstring
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; CHECK-NEXT: .align 4
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; CHECK-NEXT: L_private3:
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; There is no dedicated 1 or 2 byte constant section on MachO.
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@private4 = private unnamed_addr constant i32 42
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; CHECK: .section __TEXT,__literal4,4byte_literals
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; CHECK-NEXT: .align 2
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; CHECK-NEXT: L_private4:
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@private5 = private unnamed_addr constant i64 42
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; CHECK: .section __TEXT,__literal8,8byte_literals
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private5:
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@private6 = private unnamed_addr constant i128 42
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; CHECK: .section __TEXT,__literal16,16byte_literals
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private6:
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%struct._objc_class = type { i8* }
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@private7 = private global %struct._objc_class* null, section "__OBJC,__cls_refs,literal_pointers,no_dead_strip"
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; CHECK: .section __OBJC,__cls_refs,literal_pointers,no_dead_strip
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; CHECK: .align 3
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; CHECK: L_private7:
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@private8 = private global i32* null, section "__DATA,__nl_symbol_ptr,non_lazy_symbol_pointers"
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; CHECK: .section __DATA,__nl_symbol_ptr,non_lazy_symbol_pointers
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private8:
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@private9 = private global i32* null, section "__DATA,__la_symbol_ptr,lazy_symbol_pointers"
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; CHECK: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private9:
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@private10 = private global i32* null, section "__DATA,__mod_init_func,mod_init_funcs"
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; CHECK: .section __DATA,__mod_init_func,mod_init_funcs
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private10:
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@private11 = private global i32* null, section "__DATA,__mod_term_func,mod_term_funcs"
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; CHECK: .section __DATA,__mod_term_func,mod_term_funcs
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private11:
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@private12 = private global i32* null, section "__DATA,__foobar,interposing"
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; CHECK: .section __DATA,__foobar,interposing
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; CHECK-NEXT: .align 3
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; CHECK-NEXT: L_private12:
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