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4291d4247a
This commit is to improve global merge pass and support global symbol merge. The global symbol merge is not enabled by default. For aarch64, we need some more back-end fix to make it really benifit ADRP CSE. llvm-svn: 210640
31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -O0 | FileCheck --check-prefix=NO-MERGE %s
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; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -O0 -global-merge-on-external=true | FileCheck --check-prefix=NO-MERGE %s
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; RUN: llc < %s -mtriple=aarch64-apple-ios -O0 | FileCheck %s --check-prefix=CHECK-APPLE-IOS-NO-MERGE
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; RUN: llc < %s -mtriple=aarch64-apple-ios -O0 -global-merge-on-external=true | FileCheck %s --check-prefix=CHECK-APPLE-IOS-NO-MERGE
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; FIXME: add O1/O2 test for aarch64-none-linux-gnu and aarch64-apple-ios
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@m = internal global i32 0, align 4
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@n = internal global i32 0, align 4
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define void @f1(i32 %a1, i32 %a2) {
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; CHECK-LABEL: f1:
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; CHECK: adrp x{{[0-9]+}}, _MergedGlobals
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; CHECK-NOT: adrp
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; CHECK-APPLE-IOS-LABEL: f1:
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; CHECK-APPLE-IOS: adrp x{{[0-9]+}}, __MergedGlobals
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; CHECK-APPLE-IOS-NOT: adrp
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store i32 %a1, i32* @m, align 4
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store i32 %a2, i32* @n, align 4
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ret void
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}
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; CHECK: .local _MergedGlobals
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; CHECK: .comm _MergedGlobals,8,8
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; NO-MERGE-NOT: .local _MergedGlobals
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; CHECK-APPLE-IOS: .zerofill __DATA,__bss,__MergedGlobals,8,3
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; CHECK-APPLE-IOS-NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,8,3
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