MemDepPrinter: Fix some nits introduced in r228596

[oota-llvm.git] / lib / Target / PowerPC / PPCSubtarget.cpp

diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index 0f3f72eac31913cb8c7cbb447d539027f80f65c1..c91428db3a9a98dc0dd816a90b9971a7eb9e198a 100644 (file)
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -37,6 +37,10 @@ using namespace llvm;
 static cl::opt<bool> UseSubRegLiveness("ppc-track-subreg-liveness",
 cl::desc("Enable subregister liveness tracking for PPC"), cl::Hidden);
 
+static cl::opt<bool> QPXStackUnaligned("qpx-stack-unaligned",
+  cl::desc("Even when QPX is enabled the stack is not 32-byte aligned"),
+  cl::Hidden);
+
 PPCSubtarget &PPCSubtarget::initializeSubtargetDependencies(StringRef CPU,
                                                             StringRef FS) {
   initializeEnvironment();
@@ -90,6 +94,7 @@ void PPCSubtarget::initializeEnvironment() {
   HasLazyResolverStubs = false;
   HasICBT = false;
   HasInvariantFunctionDescriptors = false;
+  IsQPXStackUnaligned = false;
 }
 
 void PPCSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
@@ -126,10 +131,11 @@ void PPCSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
   // QPX requires a 32-byte aligned stack. Note that we need to do this if
   // we're compiling for a BG/Q system regardless of whether or not QPX
   // is enabled because external functions will assume this alignment.
-  if (hasQPX() || isBGQ())
-    StackAlignment = 32;
+  IsQPXStackUnaligned = QPXStackUnaligned;
+  StackAlignment = getPlatformStackAlignment();
 
   // Determine endianness.
+  // FIXME: Part of the TargetMachine.
   IsLittleEndian = (TargetTriple.getArch() == Triple::ppc64le);
 }