vendor/llvm-project/llvmorg-17-init-19304-gd0b54bb50e51

1 files changed, 10 insertions, 7 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
index 630c786a3dc7..6ef219f216a3 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
@@ -16,6 +16,7 @@
 #include "TargetInfo/WebAssemblyTargetInfo.h"
 #include "Utils/WebAssemblyUtilities.h"
 #include "WebAssembly.h"
+#include "WebAssemblyISelLowering.h"
 #include "WebAssemblyMachineFunctionInfo.h"
 #include "WebAssemblyTargetObjectFile.h"
 #include "WebAssemblyTargetTransformInfo.h"
@@ -98,13 +99,6 @@ static Reloc::Model getEffectiveRelocModel(std::optional<Reloc::Model> RM,
     return Reloc::Static;
   }
 
-  if (!TT.isOSEmscripten()) {
-    // Relocation modes other than static are currently implemented in a way
-    // that only works for Emscripten, so disable them if we aren't targeting
-    // Emscripten.
-    return Reloc::Static;
-  }
-
   return *RM;
 }
 
@@ -464,6 +458,15 @@ void WebAssemblyPassConfig::addIRPasses() {
 }
 
 void WebAssemblyPassConfig::addISelPrepare() {
+  WebAssemblyTargetMachine *WasmTM =
+      static_cast<WebAssemblyTargetMachine *>(TM);
+  const WebAssemblySubtarget *Subtarget =
+      WasmTM->getSubtargetImpl(std::string(WasmTM->getTargetCPU()),
+                               std::string(WasmTM->getTargetFeatureString()));
+  if (Subtarget->hasReferenceTypes()) {
+    // We need to remove allocas for reference types
+    addPass(createPromoteMemoryToRegisterPass(true));
+  }
   // Lower atomics and TLS if necessary
   addPass(new CoalesceFeaturesAndStripAtomics(&getWebAssemblyTargetMachine()));