[llvm] WebAssembly: Avoid using createDataLayout (PR #223836)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm updated https://github.com/llvm/llvm-project/pull/223836

>From 67b5701b46970fe93fb038e1fedbf893cebfc811 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Tue, 15 Sep 2026 23:11:19 +0200
Subject: [PATCH] WebAssembly: Avoid using createDataLayout

Find the datalayout from the IR context instead of copying one
from the TargetMachine
---
 .../Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp
index f916a38f898dc..07c3c2c9f4fbe 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp
@@ -18,6 +18,7 @@
 #include "WebAssemblySubtarget.h"
 #include "WebAssemblyUtilities.h"
 #include "llvm/CodeGen/Analysis.h"
+#include "llvm/IR/Module.h"
 #include "llvm/Target/TargetMachine.h"
 using namespace llvm;
 
@@ -66,7 +67,8 @@ void llvm::computeSignatureVTs(const FunctionType *Ty,
                                SmallVectorImpl<MVT> &Results) {
   computeLegalValueVTs(ContextFunc, TM, Ty->getReturnType(), Results);
 
-  MVT PtrVT = MVT::getIntegerVT(TM.createDataLayout().getPointerSizeInBits());
+  const DataLayout &DL = ContextFunc.getParent()->getDataLayout();
+  MVT PtrVT = MVT::getIntegerVT(DL.getPointerSizeInBits());
   if (!WebAssembly::canLowerReturn(
           Results.size(),
           &TM.getSubtarget<WebAssemblySubtarget>(ContextFunc))) {
@@ -90,7 +92,7 @@ void llvm::computeSignatureVTs(const FunctionType *Ty,
 
   if (TargetFunc && (TargetFunc->getCallingConv() == CallingConv::Swift ||
                      TargetFunc->getCallingConv() == CallingConv::SwiftTail)) {
-    MVT PtrVT = MVT::getIntegerVT(TM.createDataLayout().getPointerSizeInBits());
+    MVT PtrVT = MVT::getIntegerVT(DL.getPointerSizeInBits());
     bool HasSwiftErrorArg = false;
     bool HasSwiftSelfArg = false;
     bool HasSwiftAsyncArg = false;