578864007b
Previous implementation in http://reviews.llvm.org/D10522 created external references to __emutls_v.* variables. Such references are inaccurate and cannot be handled by all linkers, e.g. Android dynamic and gold linkers for aarch64. Now a new LowerEmuTLS pass to go through all global variables, and add emutls_v.* and emutls_t.* variables. These __emutls* variables have the same linkage and visibility as the associated user defined TLS variable. Also removed old code that dump __emutls* variables in AsmPrinter.cpp, and updated TLS unit tests. Differential Revision: http://reviews.llvm.org/D15300 llvm-svn: 257718
64 lines
2.0 KiB
LLVM
64 lines
2.0 KiB
LLVM
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-android -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic -O3 \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -O3 \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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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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; ARM_32-LABEL: get_external_x:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.external_x
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; ARM_32-LABEL: get_external_y:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.external_y
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; ARM_32-LABEL: get_internal_y:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.internal_y
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; ARM_32-NOT: __emutls_t.external_x
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; ARM_32-NOT: __emutls_v.external_x:
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; ARM_32: .data{{$}}
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; ARM_32: .globl __emutls_v.external_y
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; ARM_32: .align 2
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; ARM_32-LABEL: __emutls_v.external_y:
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; ARM_32-NEXT: .long 1
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; ARM_32-NEXT: .long 2
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; ARM_32-NEXT: .long 0
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; ARM_32-NEXT: .long __emutls_t.external_y
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; ARM_32: .section .rodata,
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; ARM_32-LABEL: __emutls_t.external_y:
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; ARM_32-NEXT: .byte 7
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; ARM_32: .data{{$}}
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; ARM_32-NOT: .globl
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; ARM_32: .align 2
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; ARM_32-LABEL: __emutls_v.internal_y:
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; ARM_32-NEXT: .long 8
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; ARM_32-NEXT: .long 16
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; ARM_32-NEXT: .long 0
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; ARM_32-NEXT: .long __emutls_t.internal_y
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; ARM_32-LABEL: __emutls_t.internal_y:
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; ARM_32-NEXT: .long 9
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; ARM_32-NEXT: .long 0
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