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09d2a61cd4
A global variable without an explicit alignment specified should be assumed to be ABI-aligned according to its type, like on other platforms. This allows us to use better memory operations when accessing it. rdar://18533701 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223180 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc %s -mtriple=aarch64-none-linux-gnu -enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-linux-gnuabi -enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-apple-ios -enable-global-merge -global-merge-on-external -o - | FileCheck %s --check-prefix=CHECK-APPLE-IOS
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@x = global i32 0, align 4
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@y = global i32 0, align 4
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@z = global i32 0, align 4
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define void @f1(i32 %a1, i32 %a2) {
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;CHECK-APPLE-IOS-LABEL: _f1:
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;CHECK-APPLE-IOS-NOT: adrp
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;CHECK-APPLE-IOS: adrp x8, __MergedGlobals_x@PAGE
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;CHECK-APPLE-IOS: add x8, x8, __MergedGlobals_x@PAGEOFF
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;CHECK-APPLE-IOS-NOT: adrp
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store i32 %a1, i32* @x, align 4
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store i32 %a2, i32* @y, align 4
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ret void
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}
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define void @g1(i32 %a1, i32 %a2) {
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;CHECK-APPLE-IOS-LABEL: _g1:
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;CHECK-APPLE-IOS: adrp x8, __MergedGlobals_x@PAGE
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;CHECK-APPLE-IOS: add x8, x8, __MergedGlobals_x@PAGEOFF
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;CHECK-APPLE-IOS-NOT: adrp
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store i32 %a1, i32* @y, align 4
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store i32 %a2, i32* @z, align 4
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ret void
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}
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;CHECK: .type _MergedGlobals_x,@object // @_MergedGlobals_x
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;CHECK: .globl _MergedGlobals_x
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;CHECK: .align 3
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;CHECK: _MergedGlobals_x:
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;CHECK: .size _MergedGlobals_x, 12
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;CHECK: .globl x
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;CHECK: x = _MergedGlobals_x
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;CHECK: .globl y
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;CHECK: y = _MergedGlobals_x+4
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;CHECK: .globl z
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;CHECK: z = _MergedGlobals_x+8
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;CHECK-APPLE-IOS: .globl __MergedGlobals_x ; @_MergedGlobals_x
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;CHECK-APPLE-IOS: .zerofill __DATA,__common,__MergedGlobals_x,12,3
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;CHECK-APPLE-IOS: .globl _x
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;CHECK-APPLE-IOS: _x = __MergedGlobals_x
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;CHECK-APPLE-IOS: .globl _y
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;CHECK-APPLE-IOS: _y = __MergedGlobals_x+4
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;CHECK-APPLE-IOS: .globl _z
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;CHECK-APPLE-IOS: _z = __MergedGlobals_x+8
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;CHECK-APPLE-IOS: .subsections_via_symbols
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