[llvm-branch-commits] [llvm-branch] r102675 - in /llvm/branches/Apple/Morbo: ./ lib/CodeGen/SimpleRegisterCoalescing.cpp test/CodeGen/X86/2010-04-29-CoalescerCrash.ll

[Jakob Stoklund Olesen]

Author: stoklund
Date: Thu Apr 29 19:04:00 2010
New Revision: 102675

URL: http://llvm.org/viewvc/llvm-project?rev=102675&view=rev
Log:
--- Merging r102672 into '.':
A    test/CodeGen/X86/2010-04-29-CoalescerCrash.ll
U    lib/CodeGen/SimpleRegisterCoalescing.cpp


Added:
    llvm/branches/Apple/Morbo/test/CodeGen/X86/2010-04-29-CoalescerCrash.ll
      - copied unchanged from r102672, llvm/trunk/test/CodeGen/X86/2010-04-29-CoalescerCrash.ll
Modified:
    llvm/branches/Apple/Morbo/   (props changed)
    llvm/branches/Apple/Morbo/lib/CodeGen/SimpleRegisterCoalescing.cpp

Propchange: llvm/branches/Apple/Morbo/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Apr 29 19:04:00 2010
@@ -1,2 +1,2 @@
 /llvm/branches/Apple/Hermes:96832,96835,96858,96870,96876,96879
-/llvm/trunk:98602,98604,98612,98615-98616,98675,98686,98743-98744,98768,98773,98778,98780,98810,98835,98839,98845,98855,98862,98881,98920,98977,99032-99033,99043,99196,99223,99263,99282-99284,99306,99319-99321,99324,99336,99378,99418,99423,99429,99440,99455,99463,99465,99469,99484,99490,99492-99494,99507,99524,99537,99539-99540,99544,99570,99575,99598,99620,99629-99630,99636,99671,99692,99695,99697,99699,99722,99816,99835-99836,99845-99846,99848,99850,99855,99879,99881-99883,99895,99899,99910,99916,99919,99952-99954,99957,99959,99974-99975,99982,99984-99986,99988,99992-99993,99995,99997-99999,100016,100035,100037-100038,100042,100044,100056,100072,100074,100078,100081-100090,100092,100094-100095,100116,100134,100184,100209,100214-100218,100220-100221,100223-100225,100231,100250,100252,100257,100261,100304,100332,100353,100384,100454-100455,100457,100466,100478,100480,100487,100494,100497,100505,100521,100553,100568,100584,100592,100609-100610,100636,100710,100736,100742,1007
 51,100768-100769,100771,100781,100797,100804,100837,100867,100892,100936-100937,101011,101023,101075,101077,101079,101081,101085,101154,101158,101162,101165,101181,101190,101202,101282,101303,101314-101315,101317,101331,101343,101383,101392,101420,101453,101604,101615,101629,101684-101686,101805,101845,101847,101851,101855,101870,101879,101897,101925,101930,101965,102120,102225,102358,102394,102405,102421,102454,102463,102468,102470,102481,102486,102504-102505,102508-102510,102513,102519,102524,102526,102531,102646
+/llvm/trunk:98602,98604,98612,98615-98616,98675,98686,98743-98744,98768,98773,98778,98780,98810,98835,98839,98845,98855,98862,98881,98920,98977,99032-99033,99043,99196,99223,99263,99282-99284,99306,99319-99321,99324,99336,99378,99418,99423,99429,99440,99455,99463,99465,99469,99484,99490,99492-99494,99507,99524,99537,99539-99540,99544,99570,99575,99598,99620,99629-99630,99636,99671,99692,99695,99697,99699,99722,99816,99835-99836,99845-99846,99848,99850,99855,99879,99881-99883,99895,99899,99910,99916,99919,99952-99954,99957,99959,99974-99975,99982,99984-99986,99988,99992-99993,99995,99997-99999,100016,100035,100037-100038,100042,100044,100056,100072,100074,100078,100081-100090,100092,100094-100095,100116,100134,100184,100209,100214-100218,100220-100221,100223-100225,100231,100250,100252,100257,100261,100304,100332,100353,100384,100454-100455,100457,100466,100478,100480,100487,100494,100497,100505,100521,100553,100568,100584,100592,100609-100610,100636,100710,100736,100742,1007
 51,100768-100769,100771,100781,100797,100804,100837,100867,100892,100936-100937,101011,101023,101075,101077,101079,101081,101085,101154,101158,101162,101165,101181,101190,101202,101282,101303,101314-101315,101317,101331,101343,101383,101392,101420,101453,101604,101615,101629,101684-101686,101805,101845,101847,101851,101855,101870,101879,101897,101925,101930,101965,102120,102225,102358,102394,102405,102421,102454,102463,102468,102470,102481,102486,102504-102505,102508-102510,102513,102519,102524,102526,102531,102646,102672

Modified: llvm/branches/Apple/Morbo/lib/CodeGen/SimpleRegisterCoalescing.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Morbo/lib/CodeGen/SimpleRegisterCoalescing.cpp?rev=102675&r1=102674&r2=102675&view=diff
==============================================================================
--- llvm/branches/Apple/Morbo/lib/CodeGen/SimpleRegisterCoalescing.cpp (original)
+++ llvm/branches/Apple/Morbo/lib/CodeGen/SimpleRegisterCoalescing.cpp Thu Apr 29 19:04:00 2010
@@ -1365,6 +1365,13 @@
     return false;  // Not coalescable.
   }
 
+  // We cannot handle dual subreg indices and mismatched classes at the same
+  // time.
+  if (SrcSubIdx && DstSubIdx && differingRegisterClasses(SrcReg, DstReg)) {
+    DEBUG(dbgs() << "\tCannot handle subreg indices and mismatched classes.\n");
+    return false;
+  }
+
   // Check that a physical source register is compatible with dst regclass
   if (SrcIsPhys) {
     unsigned SrcSubReg = SrcSubIdx ?