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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
65 lines
1.7 KiB
LLVM
65 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=aarch64-apple-ios -asm-verbose=false \
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; RUN: -aarch64-enable-collect-loh=false -aarch64-enable-global-merge \
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; RUN: -global-merge-group-by-use -global-merge-ignore-single-use %s -o - \
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; RUN: | FileCheck %s
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; We assume that globals of the same size aren't reordered inside a set.
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@m1 = internal global i32 0, align 4
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@n1 = internal global i32 0, align 4
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@o1 = internal global i32 0, align 4
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; CHECK-LABEL: f1:
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define void @f1(i32 %a1, i32 %a2) #0 {
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; CHECK-NEXT: adrp x8, [[SET:__MergedGlobals]]@PAGE
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; CHECK-NEXT: add x8, x8, [[SET]]@PAGEOFF
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; CHECK-NEXT: stp w0, w1, [x8]
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; CHECK-NEXT: ret
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store i32 %a1, i32* @m1, align 4
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store i32 %a2, i32* @n1, align 4
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ret void
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}
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@m2 = internal global i32 0, align 4
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@n2 = internal global i32 0, align 4
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; CHECK-LABEL: f2:
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define void @f2(i32 %a1, i32 %a2, i32 %a3) #0 {
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; CHECK-NEXT: adrp x8, [[SET]]@PAGE
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; CHECK-NEXT: add x8, x8, [[SET]]@PAGEOFF
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; CHECK-NEXT: stp w0, w1, [x8]
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; CHECK-NEXT: str w2, [x8, #8]
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; CHECK-NEXT: ret
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store i32 %a1, i32* @m1, align 4
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store i32 %a2, i32* @n1, align 4
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store i32 %a3, i32* @o1, align 4
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ret void
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}
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; CHECK-LABEL: f3:
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define void @f3(i32 %a1, i32 %a2) #0 {
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; CHECK-NEXT: adrp x8, [[SET]]@PAGE+12
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; CHECK-NEXT: add x8, x8, [[SET]]@PAGEOFF+12
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; CHECK-NEXT: stp w0, w1, [x8]
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; CHECK-NEXT: ret
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store i32 %a1, i32* @m2, align 4
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store i32 %a2, i32* @n2, align 4
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ret void
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}
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@o2 = internal global i32 0, align 4
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; CHECK-LABEL: f4:
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define void @f4(i32 %a1) #0 {
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; CHECK-NEXT: adrp x8, _o2@PAGE
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; CHECK-NEXT: str w0, [x8, _o2@PAGEOFF]
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; CHECK-NEXT: ret
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store i32 %a1, i32* @o2, align 4
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ret void
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}
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; CHECK-DAG: .zerofill __DATA,__bss,[[SET]],20,2
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; CHECK-DAG: .zerofill __DATA,__bss,_o2,4,2
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attributes #0 = { nounwind }
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