1; This test checks experimental Emscripten-specific `generaldynamic` TLS support. See `tls-local-exec.ll` for non-Emscripten targets (since it lowers all TLS to `localexec`). 2; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -mattr=+bulk-memory,atomics | FileCheck %s --check-prefixes=CHECK,TLS 3; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -mattr=+bulk-memory,atomics -fast-isel | FileCheck %s --check-prefixes=CHECK,TLS 4; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -mattr=-bulk-memory,atomics | FileCheck %s --check-prefixes=CHECK,NO-TLS 5target triple = "wasm32-unknown-emscripten" 6 7; CHECK-LABEL: address_of_tls: 8; CHECK-NEXT: .functype address_of_tls () -> (i32) 9define i32 @address_of_tls() { 10 ; TLS-DAG: global.get __tls_base 11 ; TLS-DAG: i32.const tls@TLSREL 12 ; TLS-NEXT: i32.add 13 ; TLS-NEXT: return 14 15 ; NO-TLS-NEXT: i32.const tls 16 ; NO-TLS-NEXT: return 17 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls) 18 %r = ptrtoint ptr %p to i32 19 ret i32 %r 20} 21 22; CHECK-LABEL: address_of_tls_external: 23; CHECK-NEXT: .functype address_of_tls_external () -> (i32) 24define i32 @address_of_tls_external() { 25 ; TLS-DAG: global.get tls_external@GOT@TLS 26 ; TLS-NEXT: return 27 28 ; NO-TLS-NEXT: i32.const tls_external 29 ; NO-TLS-NEXT: return 30 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls_external) 31 %r = ptrtoint ptr %p to i32 32 ret i32 %r 33} 34 35; CHECK-LABEL: ptr_to_tls: 36; CHECK-NEXT: .functype ptr_to_tls () -> (i32) 37define ptr @ptr_to_tls() { 38 ; TLS-DAG: global.get __tls_base 39 ; TLS-DAG: i32.const tls@TLSREL 40 ; TLS-NEXT: i32.add 41 ; TLS-NEXT: return 42 43 ; NO-TLS-NEXT: i32.const tls 44 ; NO-TLS-NEXT: return 45 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls) 46 ret ptr %p 47} 48 49; CHECK-LABEL: ptr_to_tls_external: 50; CHECK-NEXT: .functype ptr_to_tls_external () -> (i32) 51define ptr @ptr_to_tls_external() { 52 ; TLS-DAG: global.get tls_external@GOT@TLS 53 ; TLS-NEXT: return 54 55 ; NO-TLS-NEXT: i32.const tls_external 56 ; NO-TLS-NEXT: return 57 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls_external) 58 ret ptr %p 59} 60 61; CHECK-LABEL: tls_load: 62; CHECK-NEXT: .functype tls_load () -> (i32) 63define i32 @tls_load() { 64 ; TLS-DAG: global.get __tls_base 65 ; TLS-DAG: i32.const tls@TLSREL 66 ; TLS-NEXT: i32.add 67 ; TLS-NEXT: i32.load 0 68 ; TLS-NEXT: return 69 70 ; NO-TLS-NEXT: i32.const 0 71 ; NO-TLS-NEXT: i32.load tls 72 ; NO-TLS-NEXT: return 73 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls) 74 %tmp = load i32, ptr %p, align 4 75 ret i32 %tmp 76} 77 78; CHECK-LABEL: tls_load_external: 79; CHECK-NEXT: .functype tls_load_external () -> (i32) 80define i32 @tls_load_external() { 81 ; TLS-DAG: global.get tls_external@GOT@TLS 82 ; TLS-NEXT: i32.load 0 83 ; TLS-NEXT: return 84 85 ; NO-TLS-NEXT: i32.const 0 86 ; NO-TLS-NEXT: i32.load tls_external 87 ; NO-TLS-NEXT: return 88 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls_external) 89 %tmp = load i32, ptr %p, align 4 90 ret i32 %tmp 91} 92 93; CHECK-LABEL: tls_store: 94; CHECK-NEXT: .functype tls_store (i32) -> () 95define void @tls_store(i32 %x) { 96 ; TLS-DAG: global.get __tls_base 97 ; TLS-DAG: i32.const tls@TLSREL 98 ; TLS-NEXT: i32.add 99 ; TLS-NEXT: i32.store 0 100 ; TLS-NEXT: return 101 102 ; NO-TLS-NEXT: i32.const 0 103 ; NO-TLS-NEXT: i32.store tls 104 ; NO-TLS-NEXT: return 105 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls) 106 store i32 %x, ptr %p, align 4 107 ret void 108} 109 110; CHECK-LABEL: tls_store_external: 111; CHECK-NEXT: .functype tls_store_external (i32) -> () 112define void @tls_store_external(i32 %x) { 113 ; TLS-DAG: global.get tls_external@GOT@TLS 114 ; TLS-NEXT: i32.store 0 115 ; TLS-NEXT: return 116 117 ; NO-TLS-NEXT: i32.const 0 118 ; NO-TLS-NEXT: i32.store tls_external 119 ; NO-TLS-NEXT: return 120 %p = call ptr @llvm.threadlocal.address.p0(ptr @tls_external) 121 store i32 %x, ptr %p, align 4 122 ret void 123} 124 125; CHECK-LABEL: tls_size: 126; CHECK-NEXT: .functype tls_size () -> (i32) 127define i32 @tls_size() { 128; CHECK-NEXT: global.get __tls_size 129; CHECK-NEXT: return 130 %1 = call i32 @llvm.wasm.tls.size.i32() 131 ret i32 %1 132} 133 134; CHECK-LABEL: tls_align: 135; CHECK-NEXT: .functype tls_align () -> (i32) 136define i32 @tls_align() { 137; CHECK-NEXT: global.get __tls_align 138; CHECK-NEXT: return 139 %1 = call i32 @llvm.wasm.tls.align.i32() 140 ret i32 %1 141} 142 143; CHECK-LABEL: tls_base: 144; CHECK-NEXT: .functype tls_base () -> (i32) 145define ptr @tls_base() { 146; CHECK-NEXT: global.get __tls_base 147; CHECK-NEXT: return 148 %1 = call ptr @llvm.wasm.tls.base() 149 ret ptr %1 150} 151 152; CHECK-LABEL: tls_base_write: 153; CHECK-NEXT: .functype tls_base_write (i32) -> () 154define void @tls_base_write(ptr %output) { 155; CHECK-NEXT: global.get __tls_base 156; CHECK-NEXT: i32.store 0 157; CHECK-NEXT: return 158 %1 = call ptr @llvm.wasm.tls.base() 159 store ptr %1, ptr %output 160 ret void 161} 162 163; CHECK: .type tls,@object 164; TLS-NEXT: .section .tbss.tls,"T",@ 165; NO-TLS-NEXT: .section .bss.tls,"",@ 166; CHECK-NEXT: .p2align 2 167; CHECK-NEXT: tls: 168; CHECK-NEXT: .int32 0 169@tls = internal thread_local global i32 0 170 171@tls_external = external thread_local global i32, align 4 172 173declare i32 @llvm.wasm.tls.size.i32() 174declare i32 @llvm.wasm.tls.align.i32() 175declare ptr @llvm.wasm.tls.base() 176