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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
23 lines
716 B
LLVM
23 lines
716 B
LLVM
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=g5 | FileCheck %s
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; CHECK: .section .opd,"aw",@progbits
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; CHECK-NEXT: test1:
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; CHECK-NEXT: .p2align 3
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; CHECK-NEXT: .quad .L[[BEGIN:.*]]
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; CHECK-NEXT: .quad .TOC.@tocbase
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; CHECK-NEXT: .quad 0
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; CHECK-NEXT: .text
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; CHECK-NEXT: .L[[BEGIN]]:
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define i32 @test1(i32 %a) nounwind {
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entry:
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ret i32 %a
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}
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; Until recently, binutils accepted the .size directive as:
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; .size test1, .Ltmp0-test1
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; however, using this directive with recent binutils will result in the error:
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; .size expression for XXX does not evaluate to a constant
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; so we must use the label which actually tags the start of the function.
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; CHECK: .size test1, .Lfunc_end0-.L[[BEGIN]]
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