1; Verify the call site info. If the call site info is not 2; in the valid state, an assert should be triggered. 3; RUN: llc < %s -debug-entry-values -mtriple=arm64-none-linux-gnu -stop-after=machineverifier -relocation-model=pic -aarch64-elf-ldtls-generation=1 < %s 4 5; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -verify-machineinstrs < %s | FileCheck %s 6; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-RELOC %s 7; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK-NOLD %s 8; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-NOLD-RELOC %s 9; FIXME: We currently produce "small" code for the tiny model 10; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -code-model=tiny -verify-machineinstrs < %s | FileCheck %s 11; FIXME: We currently error for the large code model 12; RUN: not --crash llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -code-model=large -verify-machineinstrs < %s 2>&1 | FileCheck %s --check-prefix=CHECK-LARGE 13 14; CHECK-LARGE: ELF TLS only supported in small memory model 15 16@general_dynamic_var = external thread_local global i32 17 18define i32 @test_generaldynamic() { 19; CHECK-LABEL: test_generaldynamic: 20 21 %val = load i32, i32* @general_dynamic_var 22 ret i32 %val 23 24; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var 25; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var] 26; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var 27; CHECK-NEXT: .tlsdesccall general_dynamic_var 28; CHECK-NEXT: blr [[CALLEE]] 29 30; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var 31; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var] 32; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var 33; CHECK-NOLD-NEXT: .tlsdesccall general_dynamic_var 34; CHECK-NOLD-NEXT: blr [[CALLEE]] 35 36 37; CHECK: mrs x[[TP:[0-9]+]], TPIDR_EL0 38; CHECK: ldr w0, [x[[TP]], x0] 39; CHECK-NOLD: mrs x[[TP:[0-9]+]], TPIDR_EL0 40; CHECK-NOLD: ldr w0, [x[[TP]], x0] 41 42; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 43; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12 44; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12 45; CHECK-RELOC: R_AARCH64_TLSDESC_CALL 46 47; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 48; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12 49; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12 50; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL 51 52} 53 54define i32* @test_generaldynamic_addr() { 55; CHECK-LABEL: test_generaldynamic_addr: 56 57 ret i32* @general_dynamic_var 58 59; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:general_dynamic_var 60; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var] 61; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:general_dynamic_var 62; CHECK-NEXT: .tlsdesccall general_dynamic_var 63; CHECK-NEXT: blr [[CALLEE]] 64 65; CHECK: mrs [[TP:x[0-9]+]], TPIDR_EL0 66; CHECK: add x0, [[TP]], x0 67 68; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 69; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12 70; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12 71; CHECK-RELOC: R_AARCH64_TLSDESC_CALL 72 73; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 74; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12 75; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12 76; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL 77 78} 79 80@local_dynamic_var = external thread_local(localdynamic) global i32 81 82define i32 @test_localdynamic() { 83; CHECK-LABEL: test_localdynamic: 84 85 %val = load i32, i32* @local_dynamic_var 86 ret i32 %val 87 88; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_ 89; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_] 90; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_ 91; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_ 92; CHECK-NEXT: blr [[CALLEE]] 93; CHECK-NEXT: add x[[TPOFF:[0-9]+]], x0, :dtprel_hi12:local_dynamic_var 94; CHECK-NEXT: add x[[TPOFF]], x[[TPOFF]], :dtprel_lo12_nc:local_dynamic_var 95; CHECK: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0 96; CHECK: ldr w0, [x[[TPIDR]], x[[TPOFF]]] 97 98; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:local_dynamic_var 99; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var] 100; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var 101; CHECK-NOLD-NEXT: .tlsdesccall local_dynamic_var 102; CHECK-NOLD-NEXT: blr [[CALLEE]] 103; CHECK-NOLD: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0 104; CHECK-NOLD: ldr w0, [x[[TPIDR]], x0] 105 106 107; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 108; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12 109; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12 110; CHECK-RELOC: R_AARCH64_TLSDESC_CALL 111; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_HI12 112; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC 113 114; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 115; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12 116; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12 117; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL 118 119} 120 121define i32* @test_localdynamic_addr() { 122; CHECK-LABEL: test_localdynamic_addr: 123 124; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_ 125; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_] 126; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_ 127; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_ 128; CHECK-NEXT: blr [[CALLEE]] 129; CHECK-NEXT: add x[[TPOFF:[0-9]+]], x0, :dtprel_hi12:local_dynamic_var 130; CHECK-NEXT: add x[[TPOFF]], x[[TPOFF]], :dtprel_lo12_nc:local_dynamic_var 131; CHECK: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0 132; CHECK: add x0, x[[TPIDR]], x[[TPOFF]] 133 134; CHECK-NOLD: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc:local_dynamic_var 135; CHECK-NOLD-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var] 136; CHECK-NOLD-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:local_dynamic_var 137; CHECK-NOLD-NEXT: .tlsdesccall local_dynamic_var 138; CHECK-NOLD-NEXT: blr [[CALLEE]] 139; CHECK-NOLD: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0 140; CHECK-NOLD: add x0, x[[TPIDR]], x0 141 ret i32* @local_dynamic_var 142 143; CHECK-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 144; CHECK-RELOC: R_AARCH64_TLSDESC_LD64_LO12 145; CHECK-RELOC: R_AARCH64_TLSDESC_ADD_LO12 146; CHECK-RELOC: R_AARCH64_TLSDESC_CALL 147; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_HI12 148; CHECK-RELOC: R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC 149 150; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADR_PAGE21 151; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_LD64_LO12 152; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_ADD_LO12 153; CHECK-NOLD-RELOC: R_AARCH64_TLSDESC_CALL 154} 155 156; The entire point of the local-dynamic access model is to have a single call to 157; the expensive resolver. Make sure we achieve that goal. 158 159@local_dynamic_var2 = external thread_local(localdynamic) global i32 160 161define i32 @test_localdynamic_deduplicate() { 162; CHECK-LABEL: test_localdynamic_deduplicate: 163 164 %val = load i32, i32* @local_dynamic_var 165 %val2 = load i32, i32* @local_dynamic_var2 166 167 %sum = add i32 %val, %val2 168 ret i32 %sum 169 170; CHECK: adrp x[[DTPREL_HI:[0-9]+]], :tlsdesc:_TLS_MODULE_BASE_ 171; CHECK-NEXT: ldr [[CALLEE:x[0-9]+]], [x[[DTPREL_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE_] 172; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_lo12:_TLS_MODULE_BASE 173; CHECK-NEXT: .tlsdesccall _TLS_MODULE_BASE_ 174; CHECK-NEXT: blr [[CALLEE]] 175 176; CHECK-NOT: _TLS_MODULE_BASE_ 177 178; CHECK: ret 179} 180