From: Aditya Nandakumar <aditya_nandakumar@apple.com>
Date: Thu, 26 Oct 2017 20:13:54 +0000 (+0000)
Subject: [GISel]: Missed checking if it's okay to create a G_CONSTANT of DstTy in the legaliza... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6b9f2f63454239c89cde6ff4ded6bc576434b83c;p=llvm

[GISel]: Missed checking if it's okay to create a G_CONSTANT of DstTy in the legalizationCombiner

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316694 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/GlobalISel/LegalizerCombiner.h b/include/llvm/CodeGen/GlobalISel/LegalizerCombiner.h
index c22b31302e5..2d2a3e01d21 100644
--- a/include/llvm/CodeGen/GlobalISel/LegalizerCombiner.h
+++ b/include/llvm/CodeGen/GlobalISel/LegalizerCombiner.h
@@ -88,7 +88,8 @@ public:
       unsigned DstReg = MI.getOperand(0).getReg();
       LLT DstTy = MRI.getType(DstReg);
       if (isInstUnsupported(TargetOpcode::G_SHL, DstTy) ||
-          isInstUnsupported(TargetOpcode::G_ASHR, DstTy))
+          isInstUnsupported(TargetOpcode::G_ASHR, DstTy) ||
+          isInstUnsupported(TargetOpcode::G_CONSTANT, DstTy))
         return false;
       DEBUG(dbgs() << ".. Combine MI: " << MI;);
       Builder.setInstr(MI);