From: Eric Christopher <echristo@apple.com>
Date: Mon, 11 Oct 2010 20:05:22 +0000 (+0000)
Subject: Change flag from Enable to Disable since we're enabled by default.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=feadddd6b6c029bc77d6c11a7a637689d15cc7b4;p=oota-llvm.git

Change flag from Enable to Disable since we're enabled by default.
Also don't use fast-isel on non-darwin since it's untested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116217 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index a7ca18e8c5e..f290bacf915 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -46,9 +46,9 @@
 using namespace llvm;
 
 static cl::opt<bool>
-EnableARMFastISel("arm-fast-isel",
-                  cl::desc("Turn on experimental ARM fast-isel support"),
-                  cl::init(true), cl::Hidden);
+DisableARMFastISel("disable-arm-fast-isel",
+                    cl::desc("Turn on experimental ARM fast-isel support"),
+                    cl::init(false), cl::Hidden);
 
 namespace {
 
@@ -1555,7 +1555,11 @@ bool ARMFastISel::TargetSelectInstruction(const Instruction *I) {
 
 namespace llvm {
   llvm::FastISel *ARM::createFastISel(FunctionLoweringInfo &funcInfo) {
-    if (EnableARMFastISel) return new ARMFastISel(funcInfo);
+    // Completely untested on non-darwin.
+    const TargetMachine &TM = funcInfo.MF->getTarget();
+    const ARMSubtarget *Subtarget = &TM.getSubtarget<ARMSubtarget>();
+    if (Subtarget->isTargetDarwin() && !DisableARMFastISel)
+      return new ARMFastISel(funcInfo);
     return 0;
   }
 }