From 5268aaf7b6291010324aa03faa52658c3ba46f89 Mon Sep 17 00:00:00 2001
From: Derek Schuff <dschuff@google.com>
Date: Thu, 3 Dec 2015 00:50:30 +0000
Subject: [WebAssembly] Add a test for wasm-store-results pass

Differential Revision: http://reviews.llvm.org/D15167

llvm-svn: 254570
---
 llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp')

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
index d0735b8..3a7f50e 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp
@@ -69,7 +69,8 @@ bool WebAssemblyStoreResults::runOnMachineFunction(MachineFunction &MF) {
   const MachineRegisterInfo &MRI = MF.getRegInfo();
   MachineDominatorTree &MDT = getAnalysis<MachineDominatorTree>();
 
-  for (auto &MBB : MF)
+  for (auto &MBB : MF) {
+    DEBUG(dbgs() << "Basic Block: " << MBB.getName() << '\n');
     for (auto &MI : MBB)
       switch (MI.getOpcode()) {
       default:
@@ -94,9 +95,12 @@ bool WebAssemblyStoreResults::runOnMachineFunction(MachineFunction &MF) {
                         ->getFirstTerminator();
           if (&MI == Where || !MDT.dominates(&MI, Where))
             continue;
+          DEBUG(dbgs() << "Setting operand " << O << " in " << *Where <<
+                " from " << MI <<"\n");
           O.setReg(ToReg);
         }
       }
+  }
 
   return true;
 }
-- 
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