From: Craig Topper <craig.topper@gmail.com>
Date: Sat, 18 Feb 2017 22:53:38 +0000 (+0000)
Subject: [TableGen] Make sure EnforceSameSize populates the type sets if necessary.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8f60fb0d6f6554db1c2c9542d179a34d1c682f3b;p=llvm

[TableGen] Make sure EnforceSameSize populates the type sets if necessary.

This was found by another commit I'm working on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295578 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index 4eec2e6aa3f..22c3d490c5a 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -644,6 +644,12 @@ bool EEVT::TypeSet::EnforceSameSize(EEVT::TypeSet &VTOperand,
 
   bool MadeChange = false;
 
+  if (isCompletelyUnknown())
+    MadeChange = FillWithPossibleTypes(TP);
+
+  if (VTOperand.isCompletelyUnknown())
+    MadeChange = VTOperand.FillWithPossibleTypes(TP);
+
   // If we know one of the types, it forces the other type agree.
   if (isConcrete()) {
     MVT IVT = getConcrete();