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a72e83c26e
For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
89 lines
3.4 KiB
LLVM
89 lines
3.4 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 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: .p2align 3
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; CHECK-NEXT: L_private12:
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@private13 = private global i32 42, section "__DATA, __objc_classlist, regular, no_dead_strip"
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; CHECK: .section __DATA,__objc_classlist,regular,no_dead_strip
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: L_private13:
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@private14 = private global [4 x i8] c"zed\00", section "__TEXT,__objc_classname,cstring_literals"
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; CHECK: .section __TEXT,__objc_classname,cstring_literals
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; CHECK-NEXT: L_private14:
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@private15 = private global [4 x i8] c"zed\00", section "__TEXT,__objc_methname,cstring_literals"
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; CHECK: .section __TEXT,__objc_methname,cstring_literals
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; CHECK-NEXT: L_private15:
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@private16 = private global [4 x i8] c"zed\00", section "__TEXT,__objc_methtype,cstring_literals"
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; CHECK: .section __TEXT,__objc_methtype,cstring_literals
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; CHECK-NEXT: L_private16:
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