llvm/test/CodeGen/PowerPC/ppc64-linux-func-size.ll
Dan Gohman f4e788949d [MC] Use .p2align instead of .align
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258750 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-26 00:03:25 +00:00

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LLVM

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