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70716e54e0
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326341 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
1.4 KiB
LLVM
49 lines
1.4 KiB
LLVM
; RUN: llc < %s -emulated-tls -mtriple=powerpc64-unknown-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck %s
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; RUN: llc < %s -emulated-tls -mtriple=powerpc-unknown-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck %s
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; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=NoEMU %s
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; RUN: llc < %s -mtriple=powerpc-unknown-linux-gnu -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=NoEMU %s
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; NoEMU-NOT: __emutls
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; Make sure that TLS symbols are emitted in expected order.
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@external_x = external thread_local global i32, align 8
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@external_y = thread_local global i8 7, align 2
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@internal_y = internal thread_local global i64 9, align 16
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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 i8* @get_external_y() {
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entry:
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ret i8* @external_y
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}
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define i64* @get_internal_y() {
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entry:
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ret i64* @internal_y
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}
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; CHECK-LABEL: get_external_x:
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; CHECK-NOT: _tls_get_address
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; CHECK: __emutls_get_address
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; CHECK-LABEL: get_external_y:
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; CHECK: __emutls_get_address
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; CHECK-NOT: _tls_get_address
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; CHECK-LABEL: get_internal_y:
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; CHECK-NOT: __emutls_t.external_x:
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; CHECK-NOT: __emutls_v.external_x:
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; CHECK-LABEL: __emutls_v.external_y:
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; CHECK-LABEL: __emutls_t.external_y:
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; CHECK: __emutls_t.external_y
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; CHECK-LABEL: __emutls_v.internal_y:
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; CHECK-LABEL: __emutls_t.internal_y:
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; CHECK: __emutls_t.internal_y
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