[WebAssembly] Add a __builtin_wasm_memory_size() intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@249176 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Basic/BuiltinsWebAssembly.def b/include/clang/Basic/BuiltinsWebAssembly.def
index 5c67bdfbb490521b8bab09dcc0bed2e7fee114d2..060d5548e4f9c25f8d4bafd82f827db1a1cd68ba 100644 (file)
--- a/include/clang/Basic/BuiltinsWebAssembly.def
+++ b/include/clang/Basic/BuiltinsWebAssembly.def
@@ -17,5 +17,6 @@
 // The format of this database matches clang/Basic/Builtins.def.
 
 BUILTIN(__builtin_wasm_page_size, "z", "nc")
+BUILTIN(__builtin_wasm_memory_size, "z", "nc")
 
 #undef BUILTIN

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 27dd5b5728d33c5b30a5aa508e78bfb90fb25d02..ff2cef9b02c6a6a470d608fbedfd5285206ef855 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -7048,6 +7048,11 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
     Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_page_size, ResultType);
     return Builder.CreateCall(Callee);
   }
+  case WebAssembly::BI__builtin_wasm_memory_size: {
+    llvm::Type *ResultType = ConvertType(E->getType());
+    Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_memory_size, ResultType);
+    return Builder.CreateCall(Callee);
+  }
 
   default:
     return nullptr;

diff --git a/test/CodeGen/builtins-wasm.c b/test/CodeGen/builtins-wasm.c
index 93a66d0a337659eb99f7f6dbe75dfe3e0e9a1375..d8da8d73a27c6e39b5fb4467cf8a1660bb90646c 100644 (file)
--- a/test/CodeGen/builtins-wasm.c
+++ b/test/CodeGen/builtins-wasm.c
@@ -8,3 +8,9 @@ __SIZE_TYPE__ f0(void) {
 // WEBASSEMBLY32: call {{i.*}} @llvm.wasm.page.size.i32()
 // WEBASSEMBLY64: call {{i.*}} @llvm.wasm.page.size.i64()
 }
+
+__SIZE_TYPE__ f1(void) {
+  return __builtin_wasm_memory_size();
+// WEBASSEMBLY32: call {{i.*}} @llvm.wasm.memory.size.i32()
+// WEBASSEMBLY64: call {{i.*}} @llvm.wasm.memory.size.i64()
+}