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llvm-6502/test/CodeGen/X86/alignment.ll

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fix PR6921 a different way. Intead of increasing the alignment of globals with a specified alignment, we fix common variables to obey their alignment. Add a comment explaining why this behavior is important. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 18:46:46 +00:00
; RUN: llc %s -o - -mtriple=x86_64-linux-gnu | FileCheck %s
; This cannot get rounded up to the preferred alignment (16) if they have an
; explicit alignment specified.
@GlobalA = global { [384 x i8] } zeroinitializer, align 8
; CHECK: .bss
; CHECK: .globl GlobalA
Rework global alignment computation again. Now we do round up alignment of globals to the preferred alignment, but only when there is no section specified on the global (by far the common case). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 19:58:07 +00:00
; CHECK: .align 16
fix PR6921 a different way. Intead of increasing the alignment of globals with a specified alignment, we fix common variables to obey their alignment. Add a comment explaining why this behavior is important. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 18:46:46 +00:00
; CHECK: GlobalA:
; CHECK: .zero 384
; Common variables should not get rounded up to the preferred alignment (16) if
; they have an explicit alignment specified.
; PR6921
@GlobalB = common global { [384 x i8] } zeroinitializer, align 8
Rework global alignment computation again. Now we do round up alignment of globals to the preferred alignment, but only when there is no section specified on the global (by far the common case). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 19:58:07 +00:00
; CHECK: .comm GlobalB,384,16
@GlobalC = common global { [384 x i8] } zeroinitializer, align 2
; CHECK: .comm GlobalC,384,16
; This cannot get rounded up to the preferred alignment (16) if they have an
; explicit alignment specified *and* a section specified.
@GlobalAS = global { [384 x i8] } zeroinitializer, align 8, section "foo"
; CHECK: .globl GlobalAS
; CHECK: .align 8
; CHECK: GlobalAS:
; CHECK: .zero 384
; Common variables should not get rounded up to the preferred alignment (16) if
; they have an explicit alignment specified and a section specified.
; PR6921
@GlobalBS = common global { [384 x i8] } zeroinitializer, align 8, section "foo"
; CHECK: .comm GlobalBS,384,8
@GlobalCS = common global { [384 x i8] } zeroinitializer, align 2, section "foo"
; CHECK: .comm GlobalCS,384,2
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