Author: quantum Date: Thu Jul 18 10:53:22 2019 New Revision: 366475 URL: http://llvm.org/viewvc/llvm-project?rev=366475&view=rev Log: [WebAssembly] Implement __builtin_wasm_tls_base intrinsic
Summary: Add `__builtin_wasm_tls_base` so that LeakSanitizer can find the thread-local block and scan through it for memory leaks. Reviewers: tlively, aheejin, sbc100 Subscribers: dschuff, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D64900 Modified: cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def cfe/trunk/lib/CodeGen/CGBuiltin.cpp cfe/trunk/test/CodeGen/builtins-wasm.c Modified: cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def?rev=366475&r1=366474&r2=366475&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def (original) +++ cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def Thu Jul 18 10:53:22 2019 @@ -31,6 +31,7 @@ TARGET_BUILTIN(__builtin_wasm_data_drop, // Thread-local storage TARGET_BUILTIN(__builtin_wasm_tls_size, "z", "nc", "bulk-memory") +TARGET_BUILTIN(__builtin_wasm_tls_base, "v*", "n", "bulk-memory") // Floating point min/max BUILTIN(__builtin_wasm_min_f32, "fff", "nc") Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=366475&r1=366474&r2=366475&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original) +++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Thu Jul 18 10:53:22 2019 @@ -13924,6 +13924,10 @@ Value *CodeGenFunction::EmitWebAssemblyB Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_size, ResultType); return Builder.CreateCall(Callee); } + case WebAssembly::BI__builtin_wasm_tls_base: { + Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_base); + return Builder.CreateCall(Callee); + } case WebAssembly::BI__builtin_wasm_throw: { Value *Tag = EmitScalarExpr(E->getArg(0)); Value *Obj = EmitScalarExpr(E->getArg(1)); Modified: cfe/trunk/test/CodeGen/builtins-wasm.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-wasm.c?rev=366475&r1=366474&r2=366475&view=diff ============================================================================== --- cfe/trunk/test/CodeGen/builtins-wasm.c (original) +++ cfe/trunk/test/CodeGen/builtins-wasm.c Thu Jul 18 10:53:22 2019 @@ -44,6 +44,11 @@ __SIZE_TYPE__ tls_size() { // WEBASSEMBLY64: call i64 @llvm.wasm.tls.size.i64() } +void *tls_base() { + return __builtin_wasm_tls_base(); + // WEBASSEMBLY: call i8* @llvm.wasm.tls.base() +} + void throw(void *obj) { return __builtin_wasm_throw(0, obj); // WEBASSEMBLY32: call void @llvm.wasm.throw(i32 0, i8* %{{.*}}) _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
