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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
36 lines
1.4 KiB
LLVM
36 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple x86_64-apple-macosx10 | FileCheck %s
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; <rdar://problem/10655949>
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%0 = type opaque
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%struct.NSConstantString = type { i32*, i32, i8*, i64 }
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@__CFConstantStringClassReference = external global [0 x i32]
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@.str = internal unnamed_addr constant [5 x i16] [i16 252, i16 98, i16 101, i16 114, i16 0], align 2
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@_unnamed_cfstring_ = private constant %struct.NSConstantString { i32* getelementptr inbounds ([0 x i32], [0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 2000, i8* bitcast ([5 x i16]* @.str to i8*), i64 4 }, section "__DATA,__cfstring"
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; CHECK: .section __TEXT,__ustring
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; CHECK-NEXT: .p2align 1
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; CHECK-NEXT: _.str:
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; CHECK-NEXT: .short 252 ## 0xfc
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; CHECK-NEXT: .short 98 ## 0x62
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; CHECK-NEXT: .short 101 ## 0x65
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; CHECK-NEXT: .short 114 ## 0x72
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; CHECK-NEXT: .short 0 ## 0x0
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define i32 @main() uwtable ssp {
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entry:
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%retval = alloca i32, align 4
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store i32 0, i32* %retval
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call void (%0*, ...) @NSLog(%0* bitcast (%struct.NSConstantString* @_unnamed_cfstring_ to %0*))
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ret i32 0
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}
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declare void @NSLog(%0*, ...)
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!llvm.module.flags = !{!0, !1, !2, !3}
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!0 = !{i32 1, !"Objective-C Version", i32 2}
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!1 = !{i32 1, !"Objective-C Image Info Version", i32 0}
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!2 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
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!3 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
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