Brad Smith b71f2fcd46 [Android] Use ELF TLS for Android API level 29+
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
2023-04-17 19:32:29 -04:00

116 lines
3.9 KiB
LLVM

; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -relocation-model=pic -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-windows-gnu -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-apple-darwin -O3 \
; RUN: | FileCheck -check-prefix=DARWIN %s
; RUN: llc < %s -mtriple=aarch64-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -mtriple=aarch64-linux-android -relocation-model=pic -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -mtriple=aarch64-linux-android -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; aarch64-windows-gnu needs explicit -emulated-tls
; RUN: llc < %s -mtriple=aarch64-apple-darwin -O3 \
; RUN: | FileCheck -check-prefix=NoEMU %s
; RUN: llc < %s -mtriple=aarch64-linux-android29 -O3 \
; RUN: | FileCheck -check-prefix=NoEMU %s
; NoEMU-NOT: __emutls
; Make sure that TLS symbols are emitted in expected order.
@external_x = external thread_local global i32, align 8
@external_y = thread_local global i8 7, align 2
@internal_y = internal thread_local global i64 9, align 16
define ptr @get_external_x() {
entry:
ret ptr @external_x
}
define ptr @get_external_y() {
entry:
ret ptr @external_y
}
define ptr @get_internal_y() {
entry:
ret ptr @internal_y
}
; ARM_64-LABEL: get_external_x:
; ARM_64: __emutls_v.external_x
; ARM_64: __emutls_get_address
; ARM_64-LABEL: get_external_y:
; ARM_64: __emutls_v.external_y
; ARM_64: __emutls_get_address
; ARM_64-LABEL: get_internal_y:
; ARM_64: __emutls_v.internal_y
; ARM_64: __emutls_get_address
; ARM_64-NOT: __emutls_t.external_x
; ARM_64-NOT: __emutls_v.external_x:
; ARM_64: .data{{$}}
; ARM_64: .globl __emutls_v.external_y
; ARM_64: .p2align 3
; ARM_64-LABEL: __emutls_v.external_y:
; ARM_64-NEXT: .xword 1
; ARM_64-NEXT: .xword 2
; ARM_64-NEXT: .xword 0
; ARM_64-NEXT: .xword __emutls_t.external_y
; ARM_64-NOT: __emutls_v.external_x:
; ARM_64: .section .r{{o?}}data,
; ARM_64-LABEL: __emutls_t.external_y:
; ARM_64-NEXT: .byte 7
; ARM_64: .data{{$}}
; ARM_64-NOT: .globl __emutls_v
; ARM_64: .p2align 3
; ARM_64-LABEL: __emutls_v.internal_y:
; ARM_64-NEXT: .xword 8
; ARM_64-NEXT: .xword 16
; ARM_64-NEXT: .xword 0
; ARM_64-NEXT: .xword __emutls_t.internal_y
; ARM_64: .section .r{{o?}}data,
; ARM_64-LABEL: __emutls_t.internal_y:
; ARM_64-NEXT: .xword 9
; DARWIN-LABEL: _get_external_x:
; DARWIN: ___emutls_v.external_x
; DARWIN: ___emutls_get_address
; DARWIN-LABEL: _get_external_y:
; DARWIN: ___emutls_v.external_y
; DARWIN: ___emutls_get_address
; DARWIN-LABEL: _get_internal_y:
; DARWIN: ___emutls_v.internal_y
; DARWIN: ___emutls_get_address
; DARWIN-NOT: ___emutls_t.external_x
; DARWIN-NOT: ___emutls_v.external_x:
; DARWIN: .section __DATA,__data
; DARWIN: .globl ___emutls_v.external_y
; DARWIN: .p2align 3
; DARWIN-LABEL: ___emutls_v.external_y:
; DARWIN-NEXT: .quad 1
; DARWIN-NEXT: .quad 2
; DARWIN-NEXT: .quad 0
; DARWIN-NEXT: .quad ___emutls_t.external_y
; DARWIN-NOT: ___emutls_v.external_x:
; DARWIN: .section __TEXT,__const
; DARWIN-LABEL: ___emutls_t.external_y:
; DARWIN-NEXT: .byte 7
; DARWIN: .section __DATA,__data
; DARWIN-NOT: .globl ___emutls_v
; DARWIN: .p2align 3
; DARWIN-LABEL: ___emutls_v.internal_y:
; DARWIN-NEXT: .quad 8
; DARWIN-NEXT: .quad 16
; DARWIN-NEXT: .quad 0
; DARWIN-NEXT: .quad ___emutls_t.internal_y
; DARWIN: .section __TEXT,__const
; DARWIN-LABEL: ___emutls_t.internal_y:
; DARWIN-NEXT: .quad 9