[llvm-commits] [llvm] r96519 - /llvm/trunk/lib/Target/ARM/ARMInstrInfo.td

[Johnny Chen]

Author: johnny
Date: Wed Feb 17 15:39:10 2010
New Revision: 96519

URL: http://llvm.org/viewvc/llvm-project?rev=96519&view=rev
Log:
Added RFE for disassembly only.

B6.1.8 RFE Return From Exception loads the PC and the CPSR from the word at the
specified address and the following word respectively.

Modified:
    llvm/trunk/lib/Target/ARM/ARMInstrInfo.td

Modified: llvm/trunk/lib/Target/ARM/ARMInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrInfo.td?rev=96519&r1=96518&r2=96519&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrInfo.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrInfo.td Wed Feb 17 15:39:10 2010
@@ -957,7 +957,7 @@
               [/* For disassembly only; pattern left blank */]>;
 }
 
-// Store Return State -- for disassembly only
+// Store Return State is a system instruction -- for disassembly only
 def SRSW : ABXI<{1,0,0,?}, (outs), (ins addrmode4:$addr, i32imm:$mode),
                 NoItinerary, "srs${addr:submode}\tsp!, $mode",
                 [/* For disassembly only; pattern left blank */]> {
@@ -972,6 +972,21 @@
   let Inst{22-20} = 0b100; // W = 0
 }
 
+// Return From Exception is a system instruction -- for disassembly only
+def RFEW : ABXI<{1,0,0,?}, (outs), (ins addrmode4:$addr, GPR:$base),
+                NoItinerary, "rfe${addr:submode}\t$base!",
+                [/* For disassembly only; pattern left blank */]> {
+  let Inst{31-28} = 0b1111;
+  let Inst{22-20} = 0b011; // W = 1
+}
+
+def RFE  : ABXI<{1,0,0,?}, (outs), (ins addrmode4:$addr, GPR:$base),
+                NoItinerary, "rfe${addr:submode}\t$base",
+                [/* For disassembly only; pattern left blank */]> {
+  let Inst{31-28} = 0b1111;
+  let Inst{22-20} = 0b001; // W = 0
+}
+
 //===----------------------------------------------------------------------===//
 //  Load / store Instructions.
 //