[llvm-commits] [llvm] r48793 - in /llvm/trunk: include/llvm/Target/TargetOptions.h lib/Target/TargetMachine.cpp

[Devang Patel]

Author: dpatel
Date: Tue Mar 25 16:02:35 2008
New Revision: 48793

URL: http://llvm.org/viewvc/llvm-project?rev=48793&view=rev
Log:
Add optimize-for-size knob.

Modified:
    llvm/trunk/include/llvm/Target/TargetOptions.h
    llvm/trunk/lib/Target/TargetMachine.cpp

Modified: llvm/trunk/include/llvm/Target/TargetOptions.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetOptions.h?rev=48793&r1=48792&r2=48793&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Target/TargetOptions.h (original)
+++ llvm/trunk/include/llvm/Target/TargetOptions.h Tue Mar 25 16:02:35 2008
@@ -78,6 +78,10 @@
   /// on the commandline. When the flag is on, the target will perform tail call
   /// optimization (pop the caller's stack) providing it supports it.
   extern bool PerformTailCallOpt;
+
+  /// OptimizeForSize - When this flags is set, code generator avoids optimization
+  /// that increases size.
+  extern bool OptimizeForSize;
 } // End llvm namespace
 
 #endif

Modified: llvm/trunk/lib/Target/TargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/TargetMachine.cpp?rev=48793&r1=48792&r2=48793&view=diff

==============================================================================
--- llvm/trunk/lib/Target/TargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/TargetMachine.cpp Tue Mar 25 16:02:35 2008
@@ -34,6 +34,7 @@
   Reloc::Model RelocationModel;
   CodeModel::Model CMModel;
   bool PerformTailCallOpt;
+  bool OptimizeForSize;
 }
 namespace {
   cl::opt<bool, true> PrintCode("print-machineinstrs",
@@ -123,6 +124,11 @@
                            cl::desc("Turn on tail call optimization."),
                            cl::location(PerformTailCallOpt),
                            cl::init(false));
+  cl::opt<bool, true>
+  EnableOptimizeForSize("optimizeforsize",
+                        cl::desc("Optimize for size."),
+                           cl::location(OptimizeForSize),
+                           cl::init(false));
 }
 
 //---------------------------------------------------------------------------