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122 lines
4.1 KiB
LLVM
122 lines
4.1 KiB
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-RELOC %s
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; arm64 has its own tls-dynamics.ll, copied from this one during implementation.
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@general_dynamic_var = external thread_local global i32
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define i32 @test_generaldynamic() {
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; CHECK-LABEL: test_generaldynamic:
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%val = load i32* @general_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var
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; CHECK-DAG: add x0, x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:general_dynamic_var
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; CHECK-DAG: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:general_dynamic_var]
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; CHECK: .tlsdesccall general_dynamic_var
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK: mrs x[[TP:[0-9]+]], tpidr_el0
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; CHECK: ldr w0, [x[[TP]], x0]
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_ADD_LO12_NC
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_LD64_LO12_NC
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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}
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define i32* @test_generaldynamic_addr() {
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; CHECK-LABEL: test_generaldynamic_addr:
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ret i32* @general_dynamic_var
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var
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; CHECK-DAG: add x0, x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:general_dynamic_var
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; CHECK-DAG: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:general_dynamic_var]
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; CHECK: .tlsdesccall general_dynamic_var
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK: mrs [[TP:x[0-9]+]], tpidr_el0
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; CHECK: add x0, [[TP]], x0
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_ADD_LO12_NC
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_LD64_LO12_NC
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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}
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@local_dynamic_var = external thread_local(localdynamic) global i32
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define i32 @test_localdynamic() {
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; CHECK-LABEL: test_localdynamic:
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%val = load i32* @local_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-DAG: add x0, x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_
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; CHECK-DAG: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK: movz [[DTP_OFFSET:x[0-9]+]], #:dtprel_g1:local_dynamic_var
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; CHECK: movk [[DTP_OFFSET]], #:dtprel_g0_nc:local_dynamic_var
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; CHECK: ldr w0, [x0, [[DTP_OFFSET]]]
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_ADD_LO12_NC
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_LD64_LO12_NC
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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}
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define i32* @test_localdynamic_addr() {
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; CHECK-LABEL: test_localdynamic_addr:
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ret i32* @local_dynamic_var
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-DAG: add x0, x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_
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; CHECK-DAG: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK: movz [[DTP_OFFSET:x[0-9]+]], #:dtprel_g1:local_dynamic_var
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; CHECK: movk [[DTP_OFFSET]], #:dtprel_g0_nc:local_dynamic_var
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; CHECK: add x0, x0, [[DTP_OFFSET]]
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; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_ADD_LO12_NC
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; CHECK-RELOC-DAG: R_AARCH64_TLSDESC_LD64_LO12_NC
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; CHECK-RELOC: R_AARCH64_TLSDESC_CALL
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}
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; The entire point of the local-dynamic access model is to have a single call to
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; the expensive resolver. Make sure we achieve that goal.
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@local_dynamic_var2 = external thread_local(localdynamic) global i32
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define i32 @test_localdynamic_deduplicate() {
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; CHECK-LABEL: test_localdynamic_deduplicate:
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%val = load i32* @local_dynamic_var
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%val2 = load i32* @local_dynamic_var2
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%sum = add i32 %val, %val2
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ret i32 %sum
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_
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; CHECK-DAG: add x0, x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_
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; CHECK-DAG: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], {{#?}}:tlsdesc_lo12:_TLS_MODULE_BASE_]
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; CHECK: .tlsdesccall _TLS_MODULE_BASE_
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; CHECK-NEXT: blr [[CALLEE]]
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; CHECK-NOT: _TLS_MODULE_BASE_
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; CHECK: ret
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}
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