[PATCH] D49396: [WebAssembly] Support for atomic.wait / atomic.wake builtins

[Heejin Ahn via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL338771: [WebAssembly] Support for atomic.wait / atomic.wake builtins (authored by aheejin, committed by ).
Herald added a subscriber: llvm-commits.

Repository:
  rL LLVM

https://reviews.llvm.org/D49396

Files:
  cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
  cfe/trunk/lib/CodeGen/CGBuiltin.cpp
  cfe/trunk/test/CodeGen/builtins-wasm.c


Index: cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
===================================================================
--- cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
+++ cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
@@ -34,4 +34,9 @@
 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
Index: cfe/trunk/test/CodeGen/builtins-wasm.c
===================================================================
--- cfe/trunk/test/CodeGen/builtins-wasm.c
+++ cfe/trunk/test/CodeGen/builtins-wasm.c
@@ -50,3 +50,21 @@
 // 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 %{{.*}})
+}
Index: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
===================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp
@@ -12055,6 +12055,26 @@
     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;


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