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llvm-mirror/test/CodeGen/X86/tls-android.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

93 lines
2.4 KiB
LLVM

; RUN: llc < %s -emulated-tls -mtriple=i686-linux-android -relocation-model=pic | FileCheck %s
; RUN: llc < %s -emulated-tls -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck -check-prefix=X64 %s
; RUN: llc < %s -mtriple=i686-linux-android -relocation-model=pic | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck -check-prefix=X64 %s
; Make sure that TLS symboles are emitted in expected order.
@external_x = external thread_local global i32
@external_y = thread_local global i32 7
@internal_y = internal thread_local global i32 9
define i32* @get_external_x() {
entry:
ret i32* @external_x
}
define i32* @get_external_y() {
entry:
ret i32* @external_y
}
define i32* @get_internal_y() {
entry:
ret i32* @internal_y
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 32-bit mode
; CHECK-LABEL: get_external_x:
; CHECK: __emutls_v.external_x
; CHECK: __emutls_get_address
; CHECK-LABEL: get_external_y:
; CHECK: __emutls_v.external_y
; CHECK: __emutls_get_address
; CHECK-LABEL: get_internal_y:
; CHECK: __emutls_v.internal_y
; CHECK: __emutls_get_address
; CHECK-NOT: __emutls_v.external_x:
; CHECK: .p2align 2
; CHECK-LABEL: __emutls_v.external_y:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long __emutls_t.external_y
; CHECK-LABEL: __emutls_t.external_y:
; CHECK-NEXT: .long 7
; CHECK: .p2align 2
; CHECK-LABEL: __emutls_v.internal_y:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long __emutls_t.internal_y
; CHECK-LABEL: __emutls_t.internal_y:
; CHECK-NEXT: .long 9
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 64-bit mode
; X64-LABEL: get_external_x:
; X64: __emutls_v.external_x
; X64: __emutls_get_address
; X64-LABEL: get_external_y:
; X64: __emutls_v.external_y
; X64: __emutls_get_address
; X64-LABEL: get_internal_y:
; X64: __emutls_v.internal_y
; X64: __emutls_get_address
; X64-NOT: __emutls_v.external_x:
; X64: .p2align 3
; X64-LABEL: __emutls_v.external_y:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.external_y
; X64-LABEL: __emutls_t.external_y:
; X64-NEXT: .long 7
; X64: .p2align 3
; X64-LABEL: __emutls_v.internal_y:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.internal_y
; X64-LABEL: __emutls_t.internal_y:
; X64-NEXT: .long 9