[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

llvm-svn: 258750

1 files changed, 10 insertions, 10 deletions

diff --git a/llvm/test/CodeGen/ARM/align.ll b/llvm/test/CodeGen/ARM/align.ll
index 9589e72df2f..74525909148 100644
--- a/llvm/test/CodeGen/ARM/align.ll
+++ b/llvm/test/CodeGen/ARM/align.ll
@@ -8,33 +8,33 @@
 ; no alignment
 
 @c = global i16 2
-;ELF: .align 1
+;ELF: .p2align 1
 ;ELF: c:
-;DARWIN: .align 1
+;DARWIN: .p2align 1
 ;DARWIN: _c:
 
 @d = global i32 3
-;ELF: .align 2
+;ELF: .p2align 2
 ;ELF: d:
-;DARWIN: .align 2
+;DARWIN: .p2align 2
 ;DARWIN: _d:
 
 @e = global i64 4
-;ELF: .align 3
+;ELF: .p2align 3
 ;ELF: e
-;DARWIN: .align 3
+;DARWIN: .p2align 3
 ;DARWIN: _e:
 
 @f = global float 5.0
-;ELF: .align 2
+;ELF: .p2align 2
 ;ELF: f:
-;DARWIN: .align 2
+;DARWIN: .p2align 2
 ;DARWIN: _f:
 
 @g = global double 6.0
-;ELF: .align 3
+;ELF: .p2align 3
 ;ELF: g:
-;DARWIN: .align 3
+;DARWIN: .p2align 3
 ;DARWIN: _g:
 
 @bar = common global [75 x i8] zeroinitializer, align 128