Author: aheejin Date: Thu Aug 2 14:44:40 2018 New Revision: 338771 URL: http://llvm.org/viewvc/llvm-project?rev=338771&view=rev Log: [WebAssembly] Support for atomic.wait / atomic.wake builtins
Summary: Add support for atomic.wait / atomic.wake builtins based on the Wasm thread proposal. Reviewers: dschuff Subscribers: sbc100, jgravelle-google, sunfish, cfe-commits Differential Revision: https://reviews.llvm.org/D49396 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=338771&r1=338770&r2=338771&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def (original) +++ cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def Thu Aug 2 14:44:40 2018 @@ -34,4 +34,9 @@ BUILTIN(__builtin_wasm_grow_memory, "zz" BUILTIN(__builtin_wasm_throw, "vUiv*", "r") BUILTIN(__builtin_wasm_rethrow, "v", "r") +// Atomic wait and notify. +BUILTIN(__builtin_wasm_atomic_wait_i32, "ii*iLLi", "n") +BUILTIN(__builtin_wasm_atomic_wait_i64, "iLLi*LLiLLi", "n") +BUILTIN(__builtin_wasm_atomic_notify, "ULLii*LLi", "n") + #undef BUILTIN Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=338771&r1=338770&r2=338771&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original) +++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Thu Aug 2 14:44:40 2018 @@ -12055,6 +12055,26 @@ Value *CodeGenFunction::EmitWebAssemblyB Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_rethrow); return Builder.CreateCall(Callee); } + case WebAssembly::BI__builtin_wasm_atomic_wait_i32: { + Value *Addr = EmitScalarExpr(E->getArg(0)); + Value *Expected = EmitScalarExpr(E->getArg(1)); + Value *Timeout = EmitScalarExpr(E->getArg(2)); + Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_atomic_wait_i32); + return Builder.CreateCall(Callee, {Addr, Expected, Timeout}); + } + case WebAssembly::BI__builtin_wasm_atomic_wait_i64: { + Value *Addr = EmitScalarExpr(E->getArg(0)); + Value *Expected = EmitScalarExpr(E->getArg(1)); + Value *Timeout = EmitScalarExpr(E->getArg(2)); + Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_atomic_wait_i64); + return Builder.CreateCall(Callee, {Addr, Expected, Timeout}); + } + case WebAssembly::BI__builtin_wasm_atomic_notify: { + Value *Addr = EmitScalarExpr(E->getArg(0)); + Value *Count = EmitScalarExpr(E->getArg(1)); + Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_atomic_notify); + return Builder.CreateCall(Callee, {Addr, Count}); + } default: return nullptr; Modified: cfe/trunk/test/CodeGen/builtins-wasm.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-wasm.c?rev=338771&r1=338770&r2=338771&view=diff ============================================================================== --- cfe/trunk/test/CodeGen/builtins-wasm.c (original) +++ cfe/trunk/test/CodeGen/builtins-wasm.c Thu Aug 2 14:44:40 2018 @@ -50,3 +50,21 @@ void f7(void) { // WEBASSEMBLY32: call void @llvm.wasm.rethrow() // WEBASSEMBLY64: call void @llvm.wasm.rethrow() } + +int f8(int *addr, int expected, long long timeout) { + return __builtin_wasm_atomic_wait_i32(addr, expected, timeout); +// WEBASSEMBLY32: call i32 @llvm.wasm.atomic.wait.i32(i32* %{{.*}}, i32 %{{.*}}, i64 %{{.*}}) +// WEBASSEMBLY64: call i32 @llvm.wasm.atomic.wait.i32(i32* %{{.*}}, i32 %{{.*}}, i64 %{{.*}}) +} + +int f9(long long *addr, long long expected, long long timeout) { + return __builtin_wasm_atomic_wait_i64(addr, expected, timeout); +// WEBASSEMBLY32: call i32 @llvm.wasm.atomic.wait.i64(i64* %{{.*}}, i64 %{{.*}}, i64 %{{.*}}) +// WEBASSEMBLY64: call i32 @llvm.wasm.atomic.wait.i64(i64* %{{.*}}, i64 %{{.*}}, i64 %{{.*}}) +} + +unsigned long long f10(int *addr, long long count) { + return __builtin_wasm_atomic_notify(addr, count); +// WEBASSEMBLY32: call i64 @llvm.wasm.atomic.notify(i32* %{{.*}}, i64 %{{.*}}) +// WEBASSEMBLY64: call i64 @llvm.wasm.atomic.notify(i32* %{{.*}}, i64 %{{.*}}) +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
