r323224 - [WebAssembly] Add mem.* builtin functions.
Dan Gohman via cfe-commits
cfe-commits at lists.llvm.org
Tue Jan 23 09:04:04 PST 2018
Author: djg
Date: Tue Jan 23 09:04:04 2018
New Revision: 323224
URL: http://llvm.org/viewvc/llvm-project?rev=323224&view=rev
Log:
[WebAssembly] Add mem.* builtin functions.
This corresponds to r323222 in LLVM. The new names are not yet
finalized, so use them at your own risk.
Modified:
cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
cfe/trunk/lib/CodeGen/CGBuiltin.cpp
cfe/trunk/test/CodeGen/builtins-wasm.c
cfe/trunk/test/CodeGen/wasm-arguments.c
Modified: cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def?rev=323224&r1=323223&r2=323224&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def (original)
+++ cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def Tue Jan 23 09:04:04 2018
@@ -16,8 +16,16 @@
// The format of this database matches clang/Basic/Builtins.def.
-// Note that current_memory is not "c" (readnone) because it must be sequenced
+// Query the current memory size, and increase the current memory size.
+// Note that mem.size is not "c" (readnone) because it must be sequenced
// with respect to grow_memory calls.
+// These are the new proposed names, which aren't yet official. Use at your own
+// risk.
+BUILTIN(__builtin_wasm_mem_size, "zIi", "n")
+BUILTIN(__builtin_wasm_mem_grow, "zIiz", "n")
+
+// These are the existing names, which are currently official, but expected
+// to be deprecated in the future. They also lack the immediate field.
BUILTIN(__builtin_wasm_current_memory, "z", "n")
BUILTIN(__builtin_wasm_grow_memory, "zz", "n")
Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=323224&r1=323223&r2=323224&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Tue Jan 23 09:04:04 2018
@@ -10495,6 +10495,21 @@ Value *CodeGenFunction::EmitNVPTXBuiltin
Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
const CallExpr *E) {
switch (BuiltinID) {
+ 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);
Modified: cfe/trunk/test/CodeGen/builtins-wasm.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-wasm.c?rev=323224&r1=323223&r2=323224&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/builtins-wasm.c (original)
+++ cfe/trunk/test/CodeGen/builtins-wasm.c Tue Jan 23 09:04:04 2018
@@ -3,25 +3,37 @@
// RUN: %clang_cc1 -triple wasm64-unknown-unknown -O3 -emit-llvm -o - %s \
// RUN: | FileCheck %s -check-prefix=WEBASSEMBLY64
-__SIZE_TYPE__ f1(void) {
+__SIZE_TYPE__ f0(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__ f1(__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__ f2(void) {
return __builtin_wasm_current_memory();
// WEBASSEMBLY32: call {{i.*}} @llvm.wasm.current.memory.i32()
// WEBASSEMBLY64: call {{i.*}} @llvm.wasm.current.memory.i64()
}
-__SIZE_TYPE__ f2(__SIZE_TYPE__ delta) {
+__SIZE_TYPE__ f3(__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 f3(unsigned int tag, void *obj) {
+void f4(unsigned int tag, void *obj) {
return __builtin_wasm_throw(tag, obj);
// WEBASSEMBLY32: call void @llvm.wasm.throw(i32 %{{.*}}, i8* %{{.*}})
// WEBASSEMBLY64: call void @llvm.wasm.throw(i32 %{{.*}}, i8* %{{.*}})
}
-void f4() {
+void f5(void) {
return __builtin_wasm_rethrow();
// WEBASSEMBLY32: call void @llvm.wasm.rethrow()
// WEBASSEMBLY64: call void @llvm.wasm.rethrow()
Modified: cfe/trunk/test/CodeGen/wasm-arguments.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/wasm-arguments.c?rev=323224&r1=323223&r2=323224&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/wasm-arguments.c (original)
+++ cfe/trunk/test/CodeGen/wasm-arguments.c Tue Jan 23 09:04:04 2018
@@ -24,7 +24,7 @@ typedef struct {
// Single-element structs should be returned as the one element.
// WEBASSEMBLY32: define i32 @f2()
// WEBASSEMBLY64: define i32 @f2()
-s2 f2() {
+s2 f2(void) {
s2 foo;
return foo;
}
@@ -36,7 +36,7 @@ typedef struct {
// Structs should be returned sret and not simplified by the frontend.
// WEBASSEMBLY32: define void @f3(%struct.s3* noalias sret %agg.result)
// WEBASSEMBLY64: define void @f3(%struct.s3* noalias sret %agg.result)
-s3 f3() {
+s3 f3(void) {
s3 foo;
return foo;
}
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