Revert "[WebAssembly] Disable multivalue emission temporarily (#82714)"

This reverts commit 6e6bf9f81756ba6655b4eea8dc45469a47f89b39.

It turned out the multivalue feature had active outside users and it
could cause some disruptions to them, so I'd like to investigate more
about the workarounds before doing this.

1 files changed, 12 insertions, 14 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
index 2a84c90..3e2e029 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
@@ -24,8 +24,6 @@
 
 using namespace llvm;
 
-extern cl::opt<bool> WasmEmitMultiValue;
-
 namespace {
 
 enum RuntimeLibcallSignature {
@@ -696,7 +694,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(PtrTy);
     break;
   case i64_i64_func_f32:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -705,7 +703,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::F32);
     break;
   case i64_i64_func_f64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -714,7 +712,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::F64);
     break;
   case i16_i16_func_i16_i16:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I32);
       Rets.push_back(wasm::ValType::I32);
     } else {
@@ -724,7 +722,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I32);
     break;
   case i32_i32_func_i32_i32:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I32);
       Rets.push_back(wasm::ValType::I32);
     } else {
@@ -734,7 +732,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I32);
     break;
   case i64_i64_func_i64_i64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -744,7 +742,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i64_i64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -756,7 +754,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i64_i64_iPTR:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -769,7 +767,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(PtrTy);
     break;
   case i64_i64_i64_i64_func_i64_i64_i64_i64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
@@ -783,7 +781,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i32:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -853,7 +851,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i64_i64_i64_i64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -867,7 +865,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i32:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {
@@ -876,7 +874,7 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
     Params.push_back(wasm::ValType::I32);
     break;
   case i64_i64_func_i64:
-    if (Subtarget.hasMultivalue() && WasmEmitMultiValue) {
+    if (Subtarget.hasMultivalue()) {
       Rets.push_back(wasm::ValType::I64);
       Rets.push_back(wasm::ValType::I64);
     } else {