From 322b440079db0e61fdd9aba3d95891a1d3d00d0d Mon Sep 17 00:00:00 2001
From: Sergey Andreenko <seandree@microsoft.com>
Date: Thu, 28 Sep 2017 16:16:06 -0700
Subject: [PATCH] ignore GT_ARGPLACE before gtUseNum check. (#14233)

---
 src/jit/codegenlinear.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/jit/codegenlinear.cpp b/src/jit/codegenlinear.cpp
index 657d779..1ee288b 100644
--- a/src/jit/codegenlinear.cpp
+++ b/src/jit/codegenlinear.cpp
@@ -1112,7 +1112,6 @@ void CodeGen::genConsumeRegAndCopy(GenTree* node, regNumber needReg)
 void CodeGen::genNumberOperandUse(GenTree* const operand, int& useNum) const
 {
     assert(operand != nullptr);
-    assert(operand->gtUseNum == -1);
 
     // Ignore argument placeholders.
     if (operand->OperGet() == GT_ARGPLACE)
@@ -1120,6 +1119,8 @@ void CodeGen::genNumberOperandUse(GenTree* const operand, int& useNum) const
         return;
     }
 
+    assert(operand->gtUseNum == -1);
+
     if (!operand->isContained() && !operand->IsCopyOrReload())
     {
         operand->gtUseNum = useNum;
-- 
2.7.4