[RyuJit] Stack level setter (#15597)

* create a new phase: StackLevelSetter

* add repro

* Fix grammar mistakes

* use the default hash

* delete values from the map.

* create gentree::OperIsPutArgStkOrSplit

* fix more comments

* delete an extra condition that is always true

* use GTSTRUCT_2_SPECIAL for PutArgStk

* extract fgUseThrowHelperBlocks

* optimize memory for amd64 and additional checks for x86

* change checks

The previous version was wrong, because morph can call fgAddCodeRef several times for the same instruction during different phases.

* fix comments

* fix genJumpToThrowHlpBlk

* small ref in genJumpToThrowHlpBlk

* fix rebase problems.

* use fgUseThrowHelperBlocks instead of !opts.compDbgCode

* add throwHelperBlocksUsed for throughput.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/jit/gentree.h b/src/jit/gentree.h
index 5f534db8f1..ed5664efb2 100644
--- a/src/jit/gentree.h
+++ b/src/jit/gentree.h
@@ -1294,6 +1294,11 @@ public:
         return gtOper == GT_PUTARG_STK;
     }
 
+    bool OperIsPutArgStkOrSplit() const
+    {
+        return OperIsPutArgStk() || OperIsPutArgSplit();
+    }
+
     bool OperIsPutArgReg() const
     {
         return gtOper == GT_PUTARG_REG;