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13e607925f
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
69 lines
2.0 KiB
LLVM
69 lines
2.0 KiB
LLVM
; RUN: llc < %s -emulated-tls -mtriple=i686-linux-android -relocation-model=pic | FileCheck %s
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; RUN: llc < %s -emulated-tls -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck %s
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; RUN: llc < %s -mtriple=i686-linux-android -relocation-model=pic | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck %s
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; Make sure that some symboles are not emitted in emulated TLS model.
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@external_x = external thread_local global i32
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@external_y = thread_local global i32 7
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@internal_y = internal thread_local global i32 9
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@internal_y0 = internal thread_local global i32 0
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define i32* @get_external_x() {
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entry:
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ret i32* @external_x
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}
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define i32* @get_external_y() {
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entry:
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ret i32* @external_y
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}
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define i32* @get_internal_y() {
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entry:
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ret i32* @internal_y
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}
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define i32* @get_internal_y0() {
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entry:
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ret i32* @internal_y0
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}
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; no direct access to emulated TLS variables.
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; no definition of emulated TLS variables.
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; no initializer for external TLS variables, __emutls_t.external_x
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; no initializer for 0-initialized TLS variables, __emutls_t.internal_y0
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; not global linkage for __emutls_t.external_y
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; CHECK-NOT: external_x@TLS
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; CHECK-NOT: external_y@TLS
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; CHECK-NOT: internal_y@TLS
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; CHECK-NOT: .size external_x
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; CHECK-NOT: .size external_y
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; CHECK-NOT: .size internal_y
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; CHECK-NOT: .size internal_y0
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; CHECK-NOT: __emutls_v.external_x:
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; CHECK-NOT: __emutls_t.external_x:
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; CHECK-NOT: __emutls_t.internal_y0:
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; CHECK-NOT: global __emutls_t.external_y
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; CHECK-NOT: global __emutls_v.internal_y
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; CHECK-NOT: global __emutls_v.internal_y0
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; CHECK: __emutls_t.external_y
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; CHECK-NOT: external_x@TLS
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; CHECK-NOT: external_y@TLS
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; CHECK-NOT: internal_y@TLS
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; CHECK-NOT: .size external_x
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; CHECK-NOT: .size external_y
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; CHECK-NOT: .size internal_y
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; CHECK-NOT: .size internal_y0
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; CHECK-NOT: __emutls_v.external_x:
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; CHECK-NOT: __emutls_t.external_x:
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; CHECK-NOT: __emutls_t.internal_y0:
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; CHECK-NOT: global __emutls_t.external_y
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; CHECK-NOT: global __emutls_v.internal_y
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; CHECK-NOT: global __emutls_v.internal_y0
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