From: Stuart Hastings <stuart@apple.com>
Date: Thu, 28 Apr 2011 21:35:59 +0000 (+0000)
Subject: Raise ARM byval minimum size from 32 to 64, addressing a performance
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a1dadc9874992fdb5a9a721bec6cf1b9f0e90fed;p=clang

Raise ARM byval minimum size from 32 to 64, addressing a performance
regression in mason.  rdar://problem/7662569


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130444 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
index aa48cb2eeb..bc2472cebb 100644
--- a/lib/CodeGen/TargetInfo.cpp
+++ b/lib/CodeGen/TargetInfo.cpp
@@ -2344,7 +2344,7 @@ ABIArgInfo ARMABIInfo::classifyArgumentType(QualType Ty) const {
   // FIXME: This doesn't handle alignment > 64 bits.
   const llvm::Type* ElemTy;
   unsigned SizeRegs;
-  if (getContext().getTypeSizeInChars(Ty) <= CharUnits::fromQuantity(32)) {
+  if (getContext().getTypeSizeInChars(Ty) <= CharUnits::fromQuantity(64)) {
     ElemTy = llvm::Type::getInt32Ty(getVMContext());
     SizeRegs = (getContext().getTypeSize(Ty) + 31) / 32;
   } else if (getABIKind() == ARMABIInfo::APCS) {