vendor/llvm/llvm-trunk-r366426

1 files changed, 9 insertions, 10 deletions

diff --git a/lib/CodeGen/GlobalISel/InstructionSelector.cpp b/lib/CodeGen/GlobalISel/InstructionSelector.cpp
index 38913e4afcba..2ad35b3a72c9 100644
--- a/lib/CodeGen/GlobalISel/InstructionSelector.cpp
+++ b/lib/CodeGen/GlobalISel/InstructionSelector.cpp
@@ -1,9 +1,8 @@
 //===- llvm/CodeGen/GlobalISel/InstructionSelector.cpp --------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
@@ -42,16 +41,16 @@ bool InstructionSelector::constrainOperandRegToRegClass(
   MachineFunction &MF = *MBB.getParent();
   MachineRegisterInfo &MRI = MF.getRegInfo();
 
-  return
-      constrainRegToClass(MRI, TII, RBI, I, I.getOperand(OpIdx).getReg(), RC);
+  return constrainOperandRegClass(MF, TRI, MRI, TII, RBI, I, RC,
+                                  I.getOperand(OpIdx), OpIdx);
 }
 
 bool InstructionSelector::isOperandImmEqual(
     const MachineOperand &MO, int64_t Value,
     const MachineRegisterInfo &MRI) const {
   if (MO.isReg() && MO.getReg())
-    if (auto VRegVal = getConstantVRegVal(MO.getReg(), MRI))
-      return *VRegVal == Value;
+    if (auto VRegVal = getConstantVRegValWithLookThrough(MO.getReg(), MRI))
+      return VRegVal->Value == Value;
   return false;
 }
 
@@ -79,6 +78,6 @@ bool InstructionSelector::isObviouslySafeToFold(MachineInstr &MI,
       std::next(MI.getIterator()) == IntoMI.getIterator())
     return true;
 
-  return !MI.mayLoadOrStore() && !MI.hasUnmodeledSideEffects() &&
-         empty(MI.implicit_operands());
+  return !MI.mayLoadOrStore() && !MI.mayRaiseFPException() &&
+         !MI.hasUnmodeledSideEffects() && empty(MI.implicit_operands());
 }