[llvm-commits] [llvm] r121990 - in /llvm/trunk/lib/Target/ARM: ARMAsmPrinter.cpp ARMInstrThumb.td

[Jim Grosbach]

Author: grosbach
Date: Thu Dec 16 13:11:16 2010
New Revision: 121990

URL: http://llvm.org/viewvc/llvm-project?rev=121990&view=rev
Log:
Pseudo-ize the Thumb1 tBfar pattern. rdar://8777974

Modified:
    llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
    llvm/trunk/lib/Target/ARM/ARMInstrThumb.td

Modified: llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp?rev=121990&r1=121989&r2=121990&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp Thu Dec 16 13:11:16 2010
@@ -746,6 +746,14 @@
     }
     return;
   }
+  case ARM::tBfar: {
+    MCInst TmpInst;
+    TmpInst.setOpcode(ARM::tBL);
+    TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::Create(
+          MI->getOperand(0).getMBB()->getSymbol(), OutContext)));
+    OutStreamer.EmitInstruction(TmpInst);
+    return;
+  }
   case ARM::LEApcrel:
   case ARM::tLEApcrel:
   case ARM::t2LEApcrel: {

Modified: llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrThumb.td?rev=121990&r1=121989&r2=121990&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrThumb.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrThumb.td Thu Dec 16 13:11:16 2010
@@ -535,10 +535,11 @@
   }
 
   // Far jump
-  // FIXME: Encoding. This should probably be a pseudo for tBL
+  // Just a pseudo for a tBL instruction. Needed to let regalloc know about
+  // the clobber of LR.
   let Defs = [LR] in
-  def tBfar : TIx2<0b11110, 0b11, 1, (outs), (ins brtarget:$target), IIC_Br,
-                    "bl\t$target",[]>;
+  def tBfar : tPseudoInst<(outs), (ins t_bltarget:$target),
+                          Size4Bytes, IIC_Br, []>;
 
   def tBR_JTr : tPseudoInst<(outs),
                       (ins tGPR:$target, i32imm:$jt, i32imm:$id),