commit 33e694a8077809dc414145d65a31f73068c85589
author Dan Gohman <dan433584@gmail.com> Thu May 12 04:19:09 2016 +0000
committer Dan Gohman <dan433584@gmail.com> Thu May 12 04:19:09 2016 +0000
tree 04d59b2c5d3e682996e18b9221170c9348f23400
parent 1fb10e846a22f0569372f71c1ad2d68997d70779

[WebAssembly] Fast-isel support for calls, arguments, and selects.

llvm-svn: 269273

llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
index b3da786..1e9a773 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
@@ -115,9 +115,11 @@
     O.setReg(ToReg);
 
     // If the store's def was previously dead, it is no longer.
-    MI.getOperand(0).setIsDead(false);
+    if (!O.isUndef()) {
+      MI.getOperand(0).setIsDead(false);
 
-    Indices.push_back(WhereIdx.getRegSlot());
+      Indices.push_back(WhereIdx.getRegSlot());
+    }
   }
 
   if (Changed) {