From 51532a524edc9ab54475c122166fbfd30b7c792d Mon Sep 17 00:00:00 2001
From: Dan Gohman <dan433584@gmail.com>
Date: Mon, 14 Jan 2019 18:28:10 +0000
Subject: [PATCH] [WebAssembly] Remove old builtins

This removes the old grow_memory and mem.grow-style builtins, leaving just
the memory.grow-style builtins.

Differential Revision: https://reviews.llvm.org/D56645

llvm-svn: 351089
---
 clang/include/clang/Basic/BuiltinsWebAssembly.def |  8 --------
 clang/lib/CodeGen/CGBuiltin.cpp                   | 25 -----------------------
 clang/test/CodeGen/builtins-wasm.c                | 24 ----------------------
 3 files changed, 57 deletions(-)

diff --git a/clang/include/clang/Basic/BuiltinsWebAssembly.def b/clang/include/clang/Basic/BuiltinsWebAssembly.def
index 7b201db..55931ed 100644
--- a/clang/include/clang/Basic/BuiltinsWebAssembly.def
+++ b/clang/include/clang/Basic/BuiltinsWebAssembly.def
@@ -26,14 +26,6 @@
 BUILTIN(__builtin_wasm_memory_size, "zIi", "n")
 BUILTIN(__builtin_wasm_memory_grow, "zIiz", "n")
 
-// These are the old names.
-BUILTIN(__builtin_wasm_mem_size, "zIi", "n")
-BUILTIN(__builtin_wasm_mem_grow, "zIiz", "n")
-
-// These are the old old names. They also lack the immediate field.
-BUILTIN(__builtin_wasm_current_memory, "z", "n")
-BUILTIN(__builtin_wasm_grow_memory, "zz", "n")
-
 // Floating point min/max
 BUILTIN(__builtin_wasm_min_f32, "fff", "nc")
 BUILTIN(__builtin_wasm_max_f32, "fff", "nc")
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index b1799c0..4c17602 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -13087,31 +13087,6 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
     Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_memory_grow, ResultType);
     return Builder.CreateCall(Callee, Args);
   }
-  case WebAssembly::BI__builtin_wasm_mem_size: {
-    llvm::Type *ResultType = ConvertType(E->getType());
-    Value *I = EmitScalarExpr(E->getArg(0));
-    Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_mem_size, ResultType);
-    return Builder.CreateCall(Callee, I);
-  }
-  case WebAssembly::BI__builtin_wasm_mem_grow: {
-    llvm::Type *ResultType = ConvertType(E->getType());
-    Value *Args[] = {
-      EmitScalarExpr(E->getArg(0)),
-      EmitScalarExpr(E->getArg(1))
-    };
-    Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_mem_grow, ResultType);
-    return Builder.CreateCall(Callee, Args);
-  }
-  case WebAssembly::BI__builtin_wasm_current_memory: {
-    llvm::Type *ResultType = ConvertType(E->getType());
-    Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_current_memory, ResultType);
-    return Builder.CreateCall(Callee);
-  }
-  case WebAssembly::BI__builtin_wasm_grow_memory: {
-    Value *X = EmitScalarExpr(E->getArg(0));
-    Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_grow_memory, X->getType());
-    return Builder.CreateCall(Callee, X);
-  }
   case WebAssembly::BI__builtin_wasm_throw: {
     Value *Tag = EmitScalarExpr(E->getArg(0));
     Value *Obj = EmitScalarExpr(E->getArg(1));
diff --git a/clang/test/CodeGen/builtins-wasm.c b/clang/test/CodeGen/builtins-wasm.c
index 3c2288b..4f14e90 100644
--- a/clang/test/CodeGen/builtins-wasm.c
+++ b/clang/test/CodeGen/builtins-wasm.c
@@ -26,30 +26,6 @@ __SIZE_TYPE__ memory_grow(__SIZE_TYPE__ delta) {
   // WEBASSEMBLY64: call i64 @llvm.wasm.memory.grow.i64(i32 0, i64 %{{.*}})
 }
 
-__SIZE_TYPE__ mem_size(void) {
-  return __builtin_wasm_mem_size(0);
-  // WEBASSEMBLY32: call {{i.*}} @llvm.wasm.mem.size.i32(i32 0)
-  // WEBASSEMBLY64: call {{i.*}} @llvm.wasm.mem.size.i64(i32 0)
-}
-
-__SIZE_TYPE__ mem_grow(__SIZE_TYPE__ delta) {
-  return __builtin_wasm_mem_grow(0, delta);
-  // WEBASSEMBLY32: call i32 @llvm.wasm.mem.grow.i32(i32 0, i32 %{{.*}})
-  // WEBASSEMBLY64: call i64 @llvm.wasm.mem.grow.i64(i32 0, i64 %{{.*}})
-}
-
-__SIZE_TYPE__ current_memory(void) {
-  return __builtin_wasm_current_memory();
-  // WEBASSEMBLY32: call {{i.*}} @llvm.wasm.current.memory.i32()
-  // WEBASSEMBLY64: call {{i.*}} @llvm.wasm.current.memory.i64()
-}
-
-__SIZE_TYPE__ grow_memory(__SIZE_TYPE__ delta) {
-  return __builtin_wasm_grow_memory(delta);
-  // WEBASSEMBLY32: call i32 @llvm.wasm.grow.memory.i32(i32 %{{.*}})
-  // WEBASSEMBLY64: call i64 @llvm.wasm.grow.memory.i64(i64 %{{.*}})
-}
-
 void throw(unsigned int tag, void *obj) {
   return __builtin_wasm_throw(tag, obj);
   // WEBASSEMBLY32: call void @llvm.wasm.throw(i32 %{{.*}}, i8* %{{.*}})
-- 
2.7.4