From a92cecfbda0f2cc3ac57cd12da824c8ac7d19bdf Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Mon, 18 Dec 2017 23:14:28 +0000
Subject: AArch64/X86: Factor out common bzero logic; NFC

llvm-svn: 321035
---
 llvm/lib/CodeGen/TargetLoweringBase.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/CodeGen/TargetLoweringBase.cpp')

diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index 543c12e..66ee166 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -114,6 +114,10 @@ static void InitLibcallNames(const char **Names, const Triple &TT) {
     // FIXME: What about other targets?
     Names[RTLIB::FPEXT_F16_F32] = "__extendhfsf2";
     Names[RTLIB::FPROUND_F32_F16] = "__truncsfhf2";
+
+    // Darwin 10 and higher has an optimized __bzero.
+    if (!TT.isMacOSX() || !TT.isMacOSXVersionLT(10, 6))
+      Names[RTLIB::BZERO] = "__bzero";
   } else {
     Names[RTLIB::FPEXT_F16_F32] = "__gnu_h2f_ieee";
     Names[RTLIB::FPROUND_F32_F16] = "__gnu_f2h_ieee";
-- 
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