Compiler intrinsics

Add intrinsic support.  Some of these appear to be of
limited value, so we may end up removing a few.  In general,
the instrinsics provide small, but measurable, gains.

Only Arm is currently supported, but most of these should
work for our other targets as well.

This is an interim solution.  My plan is to the intrinsic
recognition action up into the basic block building phase once
we start doing inlining.

Change-Id: Ia2913f2cdecaa4e80469caf69dbf8e2f61d4506a

1 files changed, 25 insertions, 1 deletions

diff --git a/src/compiler/codegen/GenCommon.cc b/src/compiler/codegen/GenCommon.cc
index 3ca0450e1c..0ef1641858 100644
--- a/src/compiler/codegen/GenCommon.cc
+++ b/src/compiler/codegen/GenCommon.cc
@@ -21,7 +21,8 @@ namespace art {
  * be applicable to most targets.  Only mid-level support utilities
  * and "op" calls may be used here.
  */
-
+void genInvoke(CompilationUnit* cUnit, BasicBlock* bb,  MIR* mir,
+               InvokeType type, bool isRange);
 #if defined(TARGET_ARM)
 LIR* opIT(CompilationUnit* cUnit, ArmConditionCode cond, const char* guide);
 #endif
@@ -835,6 +836,7 @@ void handleSuspendLaunchpads(CompilationUnit *cUnit)
     int numElems = cUnit->suspendLaunchpads.numUsed;
     for (int i = 0; i < numElems; i++) {
         oatResetRegPool(cUnit);
+        oatResetDefTracking(cUnit);
         LIR* lab = suspendLabel[i];
         LIR* resumeLab = (LIR*)lab->operands[0];
         cUnit->currentDalvikOffset = lab->operands[1];
@@ -851,12 +853,34 @@ void handleSuspendLaunchpads(CompilationUnit *cUnit)
     }
 }
 
+void handleIntrinsicLaunchpads(CompilationUnit *cUnit)
+{
+    LIR** intrinsicLabel = (LIR **)cUnit->intrinsicLaunchpads.elemList;
+    int numElems = cUnit->intrinsicLaunchpads.numUsed;
+    for (int i = 0; i < numElems; i++) {
+        oatResetRegPool(cUnit);
+        oatResetDefTracking(cUnit);
+        LIR* lab = intrinsicLabel[i];
+        MIR* mir = (MIR*)lab->operands[0];
+        InvokeType type = (InvokeType)lab->operands[1];
+        BasicBlock* bb = (BasicBlock*)lab->operands[3];
+        cUnit->currentDalvikOffset = mir->offset;
+        oatAppendLIR(cUnit, lab);
+        genInvoke(cUnit, bb, mir, type, false /* isRange */);
+        LIR* resumeLab = (LIR*)lab->operands[2];
+        if (resumeLab != NULL) {
+            opUnconditionalBranch(cUnit, resumeLab);
+        }
+    }
+}
+
 void handleThrowLaunchpads(CompilationUnit *cUnit)
 {
     LIR** throwLabel = (LIR **)cUnit->throwLaunchpads.elemList;
     int numElems = cUnit->throwLaunchpads.numUsed;
     for (int i = 0; i < numElems; i++) {
         oatResetRegPool(cUnit);
+        oatResetDefTracking(cUnit);
         LIR* lab = throwLabel[i];
         cUnit->currentDalvikOffset = lab->operands[1];
         oatAppendLIR(cUnit, lab);