Second attempt:

Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp
index c4364a3..69a480d 100644
--- a/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/lib/Target/Mips/MipsTargetMachine.cpp
@@ -105,7 +105,7 @@
 // Install an instruction selector pass using 
 // the ISelDag to gen Mips code.
 bool MipsTargetMachine::
-addInstSelector(PassManagerBase &PM, bool Fast) 
+addInstSelector(PassManagerBase &PM, unsigned OptLevel) 
 {
   PM.add(createMipsISelDag(*this));
   return false;
@@ -115,7 +115,7 @@
 // machine code is emitted. return true if -print-machineinstrs should 
 // print out the code after the passes.
 bool MipsTargetMachine::
-addPreEmitPass(PassManagerBase &PM, bool Fast) 
+addPreEmitPass(PassManagerBase &PM, unsigned OptLevel) 
 {
   PM.add(createMipsDelaySlotFillerPass(*this));
   return true;
@@ -124,10 +124,10 @@
 // Implements the AssemblyEmitter for the target. Must return
 // true if AssemblyEmitter is supported
 bool MipsTargetMachine::
-addAssemblyEmitter(PassManagerBase &PM, bool Fast, 
+addAssemblyEmitter(PassManagerBase &PM, unsigned OptLevel, 
                    bool Verbose, raw_ostream &Out) 
 {
   // Output assembly language.
-  PM.add(createMipsCodePrinterPass(Out, *this, Fast, Verbose));
+  PM.add(createMipsCodePrinterPass(Out, *this, OptLevel, Verbose));
   return false;
 }