llvm-mirror/test/CodeGen/AArch64/emutls_generic.ll
Chih-Hung Hsieh 13e607925f [TLS] use emulated TLS if the target supports only this mode
Emulated TLS is enabled by llc flag -emulated-tls,
which is passed by clang driver.
When llc is called explicitly or from other drivers like LTO,
missing -emulated-tls flag would generate wrong TLS code for targets
that supports only this mode.
Now use useEmulatedTLS() instead of Options.EmulatedTLS to decide whether
emulated TLS code should be generated.
Unit tests are modified to run with and without the -emulated-tls flag.

Differential Revision: https://reviews.llvm.org/D42999

llvm-svn: 326341
2018-02-28 17:48:55 +00:00

114 lines
3.8 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
; 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 i32* @get_external_x() {
entry:
ret i32* @external_x
}
define i8* @get_external_y() {
entry:
ret i8* @external_y
}
define i64* @get_internal_y() {
entry:
ret i64* @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