From ac6081cb672a5d6027b6dbdb8f9ca95aac9f4775 Mon Sep 17 00:00:00 2001
From: Nirav Dave <niravd@google.com>
Date: Sat, 18 Mar 2017 00:44:07 +0000
Subject: Make library calls sensitive to regparm module flag (Fixes PR3997).

Reviewers: mkuper, rnk

Subscribers: mehdi_amini, jyknight, aemerson, llvm-commits, rengolin

Differential Revision: https://reviews.llvm.org/D27050

llvm-svn: 298179
---
 llvm/lib/IR/Module.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'llvm/lib/IR/Module.cpp')

diff --git a/llvm/lib/IR/Module.cpp b/llvm/lib/IR/Module.cpp
index 1911f84340c..09dd2aa7b42 100644
--- a/llvm/lib/IR/Module.cpp
+++ b/llvm/lib/IR/Module.cpp
@@ -465,6 +465,14 @@ void Module::dropAllReferences() {
     GIF.dropAllReferences();
 }
 
+unsigned Module::getNumberRegisterParameters() const {
+  auto *Val =
+      cast_or_null<ConstantAsMetadata>(getModuleFlag("NumRegisterParameters"));
+  if (!Val)
+    return 0;
+  return cast<ConstantInt>(Val->getValue())->getZExtValue();
+}
+
 unsigned Module::getDwarfVersion() const {
   auto *Val = cast_or_null<ConstantAsMetadata>(getModuleFlag("Dwarf Version"));
   if (!Val)
-- 
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