From d45eddd214061bf12ad1e6b86497a41725e61d75 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 26 Jun 2007 00:48:07 +0000
Subject: Revert the earlier change that removed the M_REMATERIALIZABLE machine
 instruction flag, and use the flag along with a virtual member function hook
 for targets to override if there are instructions that are only trivially
 rematerializable with specific operands (i.e. constant pool loads).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37728 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/CodeGenInstruction.h | 1 +
 utils/TableGen/CodeGenTarget.cpp    | 1 +
 utils/TableGen/InstrInfoEmitter.cpp | 1 +
 3 files changed, 3 insertions(+)

(limited to 'utils/TableGen')

diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 4f76de8..54d9b3f 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -91,6 +91,7 @@ namespace llvm {
     bool isConvertibleToThreeAddress;
     bool isCommutable;
     bool isTerminator;
+    bool isReMaterializable;
     bool hasDelaySlot;
     bool usesCustomDAGSchedInserter;
     bool hasVariableNumberOfOperands;
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index b02c423..c54ecd0 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -365,6 +365,7 @@ CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
   isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
   isCommutable = R->getValueAsBit("isCommutable");
   isTerminator = R->getValueAsBit("isTerminator");
+  isReMaterializable = R->getValueAsBit("isReMaterializable");
   hasDelaySlot = R->getValueAsBit("hasDelaySlot");
   usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
   hasCtrlDep   = R->getValueAsBit("hasCtrlDep");
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index bf027dd..af01e4c 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -240,6 +240,7 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
   if (Inst.isConvertibleToThreeAddress) OS << "|M_CONVERTIBLE_TO_3_ADDR";
   if (Inst.isCommutable) OS << "|M_COMMUTABLE";
   if (Inst.isTerminator) OS << "|M_TERMINATOR_FLAG";
+  if (Inst.isReMaterializable) OS << "|M_REMATERIALIZIBLE";
   if (Inst.clobbersPred) OS << "|M_CLOBBERS_PRED";
   if (Inst.isNotDuplicable) OS << "|M_NOT_DUPLICABLE";
   if (Inst.usesCustomDAGSchedInserter)
-- 
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