From: David Majnemer <david.majnemer@gmail.com>
Date: Sun, 28 Jun 2015 04:23:33 +0000 (+0000)
Subject: [Driver] x86-64 Windows is always PIC
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=912cd508e909dfd23d57dee3b14bfeb5dce32116;p=clang

[Driver] x86-64 Windows is always PIC

This fixes PR23963.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240902 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 27bc357f34..df74b41b02 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -2021,11 +2021,15 @@ bool Generic_GCC::IsUnwindTablesDefault() const {
   return getArch() == llvm::Triple::x86_64;
 }
 
-bool Generic_GCC::isPICDefault() const { return false; }
+bool Generic_GCC::isPICDefault() const {
+  return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
+}
 
 bool Generic_GCC::isPIEDefault() const { return false; }
 
-bool Generic_GCC::isPICDefaultForced() const { return false; }
+bool Generic_GCC::isPICDefaultForced() const {
+  return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
+}
 
 bool Generic_GCC::IsIntegratedAssemblerDefault() const {
   switch (getTriple().getArch()) {
diff --git a/test/Driver/pic.c b/test/Driver/pic.c
index a515f8117a..120e66a92a 100644
--- a/test/Driver/pic.c
+++ b/test/Driver/pic.c
@@ -242,3 +242,9 @@
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
 // RUN: %clang -c %s -target arm64-linux-android -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
+//
+// On Windows-X64 PIC is enabled by default
+// RUN: %clang -c %s -target x86_64-pc-windows-msvc18.0.0 -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target x86_64-pc-windows-gnu -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2