From 97b17066aaac3f1590a809d79abe98fde03821ec Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 6 Jan 2016 20:02:26 +0000
Subject: Vendor import of clang trunk r256945:
 https://llvm.org/svn/llvm-project/cfe/trunk@256945

---
 lib/CodeGen/BackendUtil.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'lib/CodeGen/BackendUtil.cpp')

diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 82297e7ee417d..7032d00386f39 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -249,6 +249,13 @@ static TargetLibraryInfoImpl *createTLII(llvm::Triple &TargetTriple,
   TargetLibraryInfoImpl *TLII = new TargetLibraryInfoImpl(TargetTriple);
   if (!CodeGenOpts.SimplifyLibCalls)
     TLII->disableAllFunctions();
+  else {
+    // Disable individual libc/libm calls in TargetLibraryInfo.
+    LibFunc::Func F;
+    for (auto &FuncName : CodeGenOpts.getNoBuiltinFuncs())
+      if (TLII->getLibFunc(FuncName, F))
+        TLII->setUnavailable(F);
+  }
 
   switch (CodeGenOpts.getVecLib()) {
   case CodeGenOptions::Accelerate:
-- 
cgit v1.2.3