From: Chris Lattner <sabre@nondot.org>
Date: Sun, 6 Apr 2008 17:38:14 +0000 (+0000)
Subject: Fix generation of multi-stage instruction itineraries.  Patch by
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d963ab1f58adb6daa028533ff3285841d7e45f80;p=oota-llvm.git

Fix generation of multi-stage instruction itineraries.  Patch by
giuma.cordes@gmail.com



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49276 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/utils/TableGen/SubtargetEmitter.cpp b/utils/TableGen/SubtargetEmitter.cpp
index a0dc96787d1..1f833efcaac 100644
--- a/utils/TableGen/SubtargetEmitter.cpp
+++ b/utils/TableGen/SubtargetEmitter.cpp
@@ -272,6 +272,7 @@ void SubtargetEmitter::EmitStageData(std::ostream &OS,
   OS << "static const llvm::InstrStage Stages[] = {\n"
         "  { 0, 0 }, // No itinerary\n";
         
+  unsigned StageCount = 1;
   unsigned ItinEnum = 1;
   std::map<std::string, unsigned> ItinMap;
   for (unsigned i = 0, N = ProcItinList.size(); i < N; i++) {
@@ -308,8 +309,10 @@ void SubtargetEmitter::EmitStageData(std::ostream &OS,
       if (Find == 0) {
         // Emit as { cycles, u1 | u2 | ... | un }, // index
         OS << ItinString << ", // " << ItinEnum << "\n";
-        // Record Itin class number
-        ItinMap[ItinString] = Find = ItinEnum++;
+        // Record Itin class number.
+        ItinMap[ItinString] = Find = StageCount;
+        StageCount += NStages;
+        ItinEnum++;
       }
       
       // Set up itinerary as location and location + stage count