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llvm-mirror/test/CodeGen/AArch64/global-merge-1.ll
John Brawn 8a59b4f141 [GlobalMerge] Only emit aliases for internal linkage variables for non-Mach-O
On Mach-O emitting aliases for the variables that make up a MergedGlobals
variable can cause problems when linking with dead stripping enabled so don't
do that, except for external variables where we must emit an alias.

llvm-svn: 244748
2015-08-12 13:36:48 +00:00

32 lines
1.3 KiB
LLVM

; RUN: llc %s -mtriple=aarch64-none-linux-gnu -aarch64-global-merge -o - | FileCheck %s
; RUN: llc %s -mtriple=aarch64-none-linux-gnu -aarch64-global-merge -global-merge-on-external -o - | FileCheck %s
; RUN: llc %s -mtriple=aarch64-linux-gnuabi -aarch64-global-merge -o - | FileCheck %s
; RUN: llc %s -mtriple=aarch64-linux-gnuabi -aarch64-global-merge -global-merge-on-external -o - | FileCheck %s
; RUN: llc %s -mtriple=aarch64-apple-ios -aarch64-global-merge -o - | FileCheck %s --check-prefix=CHECK-APPLE-IOS
; RUN: llc %s -mtriple=aarch64-apple-ios -aarch64-global-merge -global-merge-on-external -o - | FileCheck %s --check-prefix=CHECK-APPLE-IOS
@m = internal global i32 0, align 4
@n = internal global i32 0, align 4
define void @f1(i32 %a1, i32 %a2) {
;CHECK-APPLE-IOS-NOT: adrp
;CHECK-APPLE-IOS: adrp x8, l__MergedGlobals@PAGE
;CHECK-APPLE-IOS-NOT: adrp
;CHECK-APPLE-IOS: add x8, x8, l__MergedGlobals@PAGEOFF
store i32 %a1, i32* @m, align 4
store i32 %a2, i32* @n, align 4
ret void
}
;CHECK: .type .L_MergedGlobals,@object // @_MergedGlobals
;CHECK: .local .L_MergedGlobals
;CHECK: .comm .L_MergedGlobals,8,8
;CHECK: m = .L_MergedGlobals
;CHECK: n = .L_MergedGlobals+4
;CHECK-APPLE-IOS: .zerofill __DATA,__bss,l__MergedGlobals,8,3 ; @_MergedGlobals
;CHECK-APPLE-IOS-NOT: _m = l__MergedGlobals
;CHECK-APPLE-IOS-NOT: _n = l__MergedGlobals+4