From 690b76e13df384e6b2feccb26655762be3644cb8 Mon Sep 17 00:00:00 2001
From: Jacob Gravelle <jgravelle@google.com>
Date: Thu, 24 Aug 2017 19:53:44 +0000
Subject: [WebAssembly] FastISel : Bail to SelectionDAG for constexpr calls

Summary: Currently FastISel lowers constexpr calls as indirect calls.
We'd like those to direct calls, and falling back to SelectionDAGISel
handles that.

Reviewers: dschuff, sunfish

Subscribers: jfb, sbc100, llvm-commits, aheejin

Differential Revision: https://reviews.llvm.org/D37073

llvm-svn: 311693
---
 llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp')

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
index c980f4b87f9..f516a6b260d 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
@@ -700,9 +700,12 @@ bool WebAssemblyFastISel::selectCall(const Instruction *I) {
   if (Func && Func->isIntrinsic())
     return false;
 
+  bool IsDirect = Func != nullptr;
+  if (!IsDirect && isa<ConstantExpr>(Call->getCalledValue()))
+    return false;
+
   FunctionType *FuncTy = Call->getFunctionType();
   unsigned Opc;
-  bool IsDirect = Func != nullptr;
   bool IsVoid = FuncTy->getReturnType()->isVoidTy();
   unsigned ResultReg;
   if (IsVoid) {
-- 
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