r223097 - Remove special case for aarch64 static vs. PIC code in iOS kernel code.

[Bob Wilson]

Author: bwilson
Date: Mon Dec  1 18:27:35 2014
New Revision: 223097

URL: http://llvm.org/viewvc/llvm-project?rev=223097&view=rev
Log:
Remove special case for aarch64 static vs. PIC code in iOS kernel code.

I added this check a while back but then made a note to myself that it
should be completely unnecessary since iOS always uses PIC code-gen for
aarch64. Since I could never come up with any reason why it would be
necessary, I'm just going to remove it and we'll see if anything breaks.
rdar://problem/13627985

Modified:
    cfe/trunk/lib/Driver/ToolChains.cpp
    cfe/trunk/lib/Driver/Tools.cpp
    cfe/trunk/test/Driver/pic.c

Modified: cfe/trunk/lib/Driver/ToolChains.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains.cpp?rev=223097&r1=223096&r2=223097&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains.cpp Mon Dec  1 18:27:35 2014
@@ -902,8 +902,7 @@ DerivedArgList *Darwin::TranslateArgs(co
   // FIXME: It would be far better to avoid inserting those -static arguments,
   // but we can't check the deployment target in the translation code until
   // it is set here.
-  if (isTargetIOSBased() && !isIPhoneOSVersionLT(6, 0) &&
-      getTriple().getArch() != llvm::Triple::aarch64) {
+  if (isTargetIOSBased() && !isIPhoneOSVersionLT(6, 0)) {
     for (ArgList::iterator it = DAL->begin(), ie = DAL->end(); it != ie; ) {
       Arg *A = *it;
       ++it;

Modified: cfe/trunk/lib/Driver/Tools.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=223097&r1=223096&r2=223097&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Tools.cpp (original)
+++ cfe/trunk/lib/Driver/Tools.cpp Mon Dec  1 18:27:35 2014
@@ -2753,8 +2753,7 @@ void Clang::ConstructJob(Compilation &C,
   // Note that these flags are trump-cards. Regardless of the order w.r.t. the
   // PIC or PIE options above, if these show up, PIC is disabled.
   llvm::Triple Triple(TripleStr);
-  if (KernelOrKext && (!Triple.isiOS() || Triple.isOSVersionLT(6) ||
-                       Triple.getArch() == llvm::Triple::aarch64))
+  if (KernelOrKext && (!Triple.isiOS() || Triple.isOSVersionLT(6)))
     PIC = PIE = false;
   if (Args.hasArg(options::OPT_static))
     PIC = PIE = false;

Modified: cfe/trunk/test/Driver/pic.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/pic.c?rev=223097&r1=223096&r2=223097&view=diff
==============================================================================
--- cfe/trunk/test/Driver/pic.c (original)
+++ cfe/trunk/test/Driver/pic.c Mon Dec  1 18:27:35 2014
@@ -195,6 +195,8 @@
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
 // RUN: %clang -c %s -target armv7-apple-ios -mkernel -miphoneos-version-min=6.0.0 -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target arm64-apple-ios -mkernel -miphoneos-version-min=7.0.0 -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
 // RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=5.0.0 -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=6.0.0 -static -### 2>&1 \