[llvm-branch-commits] [llvm-branch] r105742 - in /llvm/branches/Apple/Morbo: ./ lib/CodeGen/OptimizeExts.cpp lib/Target/ARM/ARMInstrFormats.td

Bill Wendling isanbard at gmail.com
Wed Jun 9 12:02:46 PDT 2010


Author: void
Date: Wed Jun  9 14:02:46 2010
New Revision: 105742

URL: http://llvm.org/viewvc/llvm-project?rev=105742&view=rev
Log:
$ svn merge -c 105741 https://llvm.org/svn/llvm-project/llvm/trunk
--- Merging r105741 into '.':
U    lib/CodeGen/OptimizeExts.cpp


Modified:
    llvm/branches/Apple/Morbo/   (props changed)
    llvm/branches/Apple/Morbo/lib/CodeGen/OptimizeExts.cpp
    llvm/branches/Apple/Morbo/lib/Target/ARM/ARMInstrFormats.td   (props changed)

Propchange: llvm/branches/Apple/Morbo/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Jun  9 14:02:46 2010
@@ -1,3 +1,3 @@
 /llvm/branches/Apple/Hermes:96832,96835,96858,96870,96876,96879,104427,104930,104971
-/llvm/trunk:98602,98604,98612,98615-98616,98675,98686,98743-98744,98768,98773,98778,98780,98810,98835,98839,98845,98855,98862,98881,98920,98977,98980,99032-99033,99043,99196,99223,99263,99282-99284,99306,99319-99321,99324,99336,99378,99418,99423,99429,99440,99455,99463,99465,99469,99484,99490,99492-99494,99507,99524,99537,99539-99540,99544,99570,99575,99598,99620,99629-99630,99636,99671,99692,99695,99697,99699,99722,99816,99835-99836,99845-99846,99848,99850,99855,99879,99881-99883,99895,99899,99910,99916,99919,99952-99954,99957,99959,99974-99975,99982,99984-99986,99988-99989,99992-99993,99995,99997-99999,100016,100035,100037-100038,100042,100044,100056,100072,100074,100078,100081-100090,100092,100094-100095,100116,100134,100184,100209,100214-100218,100220-100221,100223-100225,100231,100250,100252,100257,100261,100304,100332,100353,100384,100454-100455,100457,100466,100478,100480,100487,100494,100497,100505,100521,100553,100568,100584,100592,100609-100610,100636,100710,100736
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+/llvm/trunk:98602,98604,98612,98615-98616,98675,98686,98743-98744,98768,98773,98778,98780,98810,98835,98839,98845,98855,98862,98881,98920,98977,98980,99032-99033,99043,99196,99223,99263,99282-99284,99306,99319-99321,99324,99336,99378,99418,99423,99429,99440,99455,99463,99465,99469,99484,99490,99492-99494,99507,99524,99537,99539-99540,99544,99570,99575,99598,99620,99629-99630,99636,99671,99692,99695,99697,99699,99722,99816,99835-99836,99845-99846,99848,99850,99855,99879,99881-99883,99895,99899,99910,99916,99919,99952-99954,99957,99959,99974-99975,99982,99984-99986,99988-99989,99992-99993,99995,99997-99999,100016,100035,100037-100038,100042,100044,100056,100072,100074,100078,100081-100090,100092,100094-100095,100116,100134,100184,100209,100214-100218,100220-100221,100223-100225,100231,100250,100252,100257,100261,100304,100332,100353,100384,100454-100455,100457,100466,100478,100480,100487,100494,100497,100505,100521,100553,100568,100584,100592,100609-100610,100636,100710,100736
 ,100742,100751,100768-100769,100771,100781,100797,100804,100837,100867,100892,100936-100937,101011,101023,101075,101077,101079,101081,101085,101154,101158,101162,101165,101181,101190,101202,101282,101294,101303,101314-101315,101317,101331,101343,101383,101392,101420,101453,101604,101615,101629,101684-101686,101805,101845,101847,101851,101855,101870,101879,101897,101925,101930,101965,101971,101979,102111,102120,102192,102202,102225,102236-102237,102358,102366,102394,102396,102405,102421,102454-102456,102463,102467-102468,102470,102481,102486-102488,102492-102493,102504-102505,102508-102510,102513,102519,102524,102526,102531,102558,102646,102653,102655,102661-102662,102672,102743,102760,102770,102791,102948,102970,102980,103001,103126,103133,103233,103314,103356,103415,103419,103439,103451,103455,103459,103798,103801-103802,103804,103808,103813,103824,103829,103990,103995,104066,104182,104233,104236,104265,104274,104302,104338,104412,104419,104524,104531,104640,104646,104649,1
 04655-104656,104661,104664,104705-104706,104720,104722,104732,104737,104740,104785,104848,104858,104872,104884,104900,104967,105285,105292,105295,105360,105387,105490,105505,105741
 /llvm-gcc-4.2/trunk:104182

Modified: llvm/branches/Apple/Morbo/lib/CodeGen/OptimizeExts.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Morbo/lib/CodeGen/OptimizeExts.cpp?rev=105742&r1=105741&r2=105742&view=diff
==============================================================================
--- llvm/branches/Apple/Morbo/lib/CodeGen/OptimizeExts.cpp (original)
+++ llvm/branches/Apple/Morbo/lib/CodeGen/OptimizeExts.cpp Wed Jun  9 14:02:46 2010
@@ -118,6 +118,26 @@
         continue;
       }
 
+      // It's an error to translate this:
+      //
+      //    %reg1025 = <sext> %reg1024
+      //     ...
+      //    %reg1026 = SUBREG_TO_REG 0, %reg1024, 4
+      //
+      // into this:
+      //
+      //    %reg1025 = <sext> %reg1024
+      //     ...
+      //    %reg1027 = EXTRACT_SUBREG %reg1025, 4
+      //    %reg1026 = SUBREG_TO_REG 0, %reg1027, 4
+      //
+      // The problem here is that SUBREG_TO_REG is there to assert that an
+      // implicit zext occurs. It doesn't insert a zext instruction. If we allow
+      // the EXTRACT_SUBREG here, it will give us the value after the <sext>,
+      // not the original value of %reg1024 before <sext>.
+      if (UseMI->getOpcode() == TargetOpcode::SUBREG_TO_REG)
+        continue;
+
       MachineBasicBlock *UseMBB = UseMI->getParent();
       if (UseMBB == MBB) {
         // Local uses that come after the extension.

Propchange: llvm/branches/Apple/Morbo/lib/Target/ARM/ARMInstrFormats.td
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Jun  9 14:02:46 2010
@@ -1,2 +1,2 @@
 /llvm/branches/Apple/Hermes/lib/Target/ARM/ARMInstrFormats.td:104930
-/llvm/trunk/lib/Target/ARM/ARMInstrFormats.td:98980,103126,104182,104233,104236,104265,104274,104302,104338,104412,104419,104524,104531,104640,104646,104649,104655-104656,104661,104664,104705-104706,104720,104722,104732,104737,104740,104785,104848,104858,104872,104884,104900,105092,105285,105292,105295,105360,105387,105490,105505
+/llvm/trunk/lib/Target/ARM/ARMInstrFormats.td:98980,103126,104182,104233,104236,104265,104274,104302,104338,104412,104419,104524,104531,104640,104646,104649,104655-104656,104661,104664,104705-104706,104720,104722,104732,104737,104740,104785,104848,104858,104872,104884,104900,105092,105285,105292,105295,105360,105387,105490,105505,105741





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