From a22edc82cab86be4cb8876da1e6e78f82bb47a3e Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 10 Jan 2008 23:08:24 +0000
Subject: Simplify the side effect stuff a bit more and make licm/sinking both
 work right according to the new flags.

This removes the TII::isReallySideEffectFree predicate, and adds
TII::isInvariantLoad.

It removes NeverHasSideEffects+MayHaveSideEffects and adds
UnmodeledSideEffects as machine instr flags.  Now the clients
can decide everything they need.

I think isRematerializable can be implemented in terms of the
flags we have now, though I will let others tackle that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45843 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/InstrInfoEmitter.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'utils/TableGen/InstrInfoEmitter.cpp')

diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index ed48c33004..5bf25d1745 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -357,8 +357,7 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
   if (Inst.usesCustomDAGSchedInserter)
     OS << "|(1<<TID::UsesCustomDAGSchedInserter)";
   if (Inst.isVariadic)         OS << "|(1<<TID::Variadic)";
-  if (Inst.mayHaveSideEffects) OS << "|(1<<TID::MayHaveSideEffects)";
-  if (!HasSideEffects)         OS << "|(1<<TID::NeverHasSideEffects)";
+  if (HasSideEffects)          OS << "|(1<<TID::UnmodeledSideEffects)";
   OS << ", 0";
 
   // Emit all of the target-specific flags...
-- 
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