From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 25 Feb 2019 20:00:25 +0000 (+0000)
Subject: GlobalISel: Make legalizer/regbankselect clear NoPHIs property
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8b22d53aad4a7147a4613528031f75a8e88475b8;p=llvm

GlobalISel: Make legalizer/regbankselect clear NoPHIs property

If no phi existed in the original MIR and these introduced one, the
verifier would fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354813 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/GlobalISel/Legalizer.h b/include/llvm/CodeGen/GlobalISel/Legalizer.h
index 01816509d4d..13cf3f7e694 100644
--- a/include/llvm/CodeGen/GlobalISel/Legalizer.h
+++ b/include/llvm/CodeGen/GlobalISel/Legalizer.h
@@ -54,6 +54,11 @@ public:
         MachineFunctionProperties::Property::Legalized);
   }
 
+  MachineFunctionProperties getClearedProperties() const override {
+    return MachineFunctionProperties()
+      .set(MachineFunctionProperties::Property::NoPHIs);
+  }
+
   bool combineExtracts(MachineInstr &MI, MachineRegisterInfo &MRI,
                        const TargetInstrInfo &TII);
 
diff --git a/include/llvm/CodeGen/GlobalISel/RegBankSelect.h b/include/llvm/CodeGen/GlobalISel/RegBankSelect.h
index c31ca5c537e..e704ce44779 100644
--- a/include/llvm/CodeGen/GlobalISel/RegBankSelect.h
+++ b/include/llvm/CodeGen/GlobalISel/RegBankSelect.h
@@ -633,6 +633,11 @@ public:
         MachineFunctionProperties::Property::RegBankSelected);
   }
 
+  MachineFunctionProperties getClearedProperties() const override {
+    return MachineFunctionProperties()
+      .set(MachineFunctionProperties::Property::NoPHIs);
+  }
+
   /// Walk through \p MF and assign a register bank to every virtual register
   /// that are still mapped to nothing.
   /// The target needs to provide a RegisterBankInfo and in particular