Make pattern isel default for ppc
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
0 == off
1 == on
2 == target default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21309 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 22df91f..fc7530a 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -25,6 +25,7 @@
bool PrintMachineCode;
bool NoFramePointerElim;
bool NoExcessFPPrecision;
+ int PatternISelTriState;
};
namespace {
cl::opt<bool, true> PrintCode("print-machineinstrs",
@@ -38,9 +39,13 @@
cl::init(false));
cl::opt<bool, true>
DisableExcessPrecision("disable-excess-fp-precision",
- cl::desc("Disable optimizations that may increase FP precision"),
- cl::location(NoExcessFPPrecision),
- cl::init(false));
+ cl::desc("Disable optimizations that may increase FP precision"),
+ cl::location(NoExcessFPPrecision),
+ cl::init(false));
+ cl::opt<int, true> PatternISel("enable-pattern-isel",
+ cl::desc("sets the pattern ISel off(0), on(1), default(2)"),
+ cl::location(PatternISelTriState),
+ cl::init(2));
};
//---------------------------------------------------------------------------