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0430bb0872
If no alignment is set, the abi/preferred alignment of structs will be used which may be higher than required. This can lead to extra padding and in the end an increase in data size. Differential Revision: https://reviews.llvm.org/D47633 llvm-svn: 334099
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-linux-gnuabi -aarch64-enable-global-merge -global-merge-on-external -o - | FileCheck %s
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; RUN: llc %s -mtriple=aarch64-apple-ios -aarch64-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 .L_MergedGlobals,@object // @_MergedGlobals
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;CHECK: .local .L_MergedGlobals
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;CHECK: .comm .L_MergedGlobals,12,4
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;CHECK: .globl x
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;CHECK: .set x, .L_MergedGlobals
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;CHECK: .size x, 4
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;CHECK: .globl y
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;CHECK: .set y, .L_MergedGlobals+4
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;CHECK: .size y, 4
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;CHECK: .globl z
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;CHECK: .set z, .L_MergedGlobals+8
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;CHECK: .size z, 4
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;CHECK-APPLE-IOS: .zerofill __DATA,__common,__MergedGlobals_x,12,2
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;CHECK-APPLE-IOS: .globl _x
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;CHECK-APPLE-IOS: .set {{.*}}, __MergedGlobals_x
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;CHECK-APPLE-IOS: .globl _y
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;CHECK-APPLE-IOS: .set _y, __MergedGlobals_x+4
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;CHECK-APPLE-IOS: .globl _z
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;CHECK-APPLE-IOS: .set _z, __MergedGlobals_x+8
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;CHECK-APPLE-IOS: .subsections_via_symbols
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