b71f2fcd46
Use ELF TLS by default instead of emulated TLS for Android build targets when the API level is >= 29. Android Q features full TLS support. See release notes (https://developer.android.com/preview/features#elf-tls) and implementation details (https://android.googlesource.com/platform/bionic/+/master/docs/elf-tls.md#Workaround_Use-Variant-2-on-arm32_arm64). Reviewed By: rprichard, danalbert Differential Revision: https://reviews.llvm.org/D147849
54 lines
1.5 KiB
LLVM
54 lines
1.5 KiB
LLVM
; RUN: llc < %s -emulated-tls -relocation-model=pic -mtriple=i686-unknown-linux-gnu -fast-isel | FileCheck %s
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; RUN: llc < %s -relocation-model=pic -mtriple=i686-unknown-linux-gnu -fast-isel \
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; RUN: | FileCheck -check-prefix=NoEMU %s
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; RUN: llc < %s -relocation-model=pic -mtriple=i686-linux-android29 -fast-isel \
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; RUN: | FileCheck -check-prefix=NoEMU %s
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; PR3654
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; NoEMU-NOT: __emutls
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@v = thread_local global i32 0
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define i32 @f() nounwind {
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entry:
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%t = load i32, ptr @v
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%s = add i32 %t, 1
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ret i32 %s
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}
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; CHECK-LABEL: f:
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; CHECK: movl __emutls_v.v@GOT(%ebx), %eax
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; CHECK-NEXT: movl %eax, (%esp)
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; CHECK-NEXT: calll __emutls_get_address@PLT
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; CHECK-NEXT: movl (%eax), %eax
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@alias = internal alias i32, ptr @v
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define i32 @f_alias() nounwind {
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entry:
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%t = load i32, ptr @v
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%s = add i32 %t, 1
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ret i32 %s
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}
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; CHECK-LABEL: f_alias:
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; CHECK: movl __emutls_v.v@GOT(%ebx), %eax
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; CHECK-NEXT: movl %eax, (%esp)
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; CHECK-NEXT: calll __emutls_get_address@PLT
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; CHECK-NEXT: movl (%eax), %eax
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; Use my_emutls_get_address like __emutls_get_address.
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@my_emutls_v_xyz = external global ptr, align 4
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declare ptr @my_emutls_get_address(ptr)
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define i32 @my_get_xyz() {
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entry:
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%call = call ptr @my_emutls_get_address(ptr @my_emutls_v_xyz)
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%0 = load i32, ptr %call, align 4
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ret i32 %0
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}
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; CHECK-LABEL: my_get_xyz:
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; CHECK: movl my_emutls_v_xyz@GOT(%ebx), %eax
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; CHECK-NEXT: movl %eax, (%esp)
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; CHECK-NEXT: calll my_emutls_get_address@PLT
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; CHECK-NEXT: movl (%eax), %eax
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