[llvm-commits] [llvm] r119126 - in /llvm/trunk/lib/Target/PowerPC: PPCFixupKinds.h PPCMCCodeEmitter.cpp

[Chris Lattner]

Author: lattner
Date: Mon Nov 15 00:12:22 2010
New Revision: 119126

URL: http://llvm.org/viewvc/llvm-project?rev=119126&view=rev
Log:
add a fixup for conditional branches, giving us output like this:

        beq cr0, LBB0_4                 ; encoding: [0x41,0x82,A,0bAAAAAA00]
                                        ;   fixup A - offset: 0, value: LBB0_4, kind: fixup_ppc_brcond14


Modified:
    llvm/trunk/lib/Target/PowerPC/PPCFixupKinds.h
    llvm/trunk/lib/Target/PowerPC/PPCMCCodeEmitter.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCFixupKinds.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCFixupKinds.h?rev=119126&r1=119125&r2=119126&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCFixupKinds.h (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCFixupKinds.h Mon Nov 15 00:12:22 2010
@@ -15,9 +15,14 @@
 namespace llvm {
 namespace PPC {
 enum Fixups {
-  // fixup_ppc_br24 - 24-bit PC relative relocation for calls like 'bl'.
+  // fixup_ppc_br24 - 24-bit PC relative relocation for direct branches like 'b'
+  // and 'bl'.
   fixup_ppc_br24 = FirstTargetFixupKind,
   
+  /// fixup_ppc_brcond14 - 14-bit PC relative relocation for conditional
+  /// branches.
+  fixup_ppc_brcond14,
+  
   // Marker
   LastTargetFixupKind,
   NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind

Modified: llvm/trunk/lib/Target/PowerPC/PPCMCCodeEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCMCCodeEmitter.cpp?rev=119126&r1=119125&r2=119126&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCMCCodeEmitter.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCMCCodeEmitter.cpp Mon Nov 15 00:12:22 2010
@@ -43,11 +43,8 @@
   const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const {
     const static MCFixupKindInfo Infos[] = {
       // name                     offset  bits  flags
-      { "fixup_ppc_br24",         6,      24,   MCFixupKindInfo::FKF_IsPCRel }
-#if 0
-      { "fixup_arm_vfp_pcrel_12", 3,      8,    MCFixupKindInfo::FKF_IsPCRel },
-      { "fixup_arm_branch",       1,      24,   MCFixupKindInfo::FKF_IsPCRel },
-#endif
+      { "fixup_ppc_br24",         6,      24,   MCFixupKindInfo::FKF_IsPCRel },
+      { "fixup_ppc_brcond14",     16,     14,   MCFixupKindInfo::FKF_IsPCRel }
     };
     
     if (Kind < FirstTargetFixupKind)
@@ -115,8 +112,9 @@
   const MCOperand &MO = MI.getOperand(OpNo);
   if (MO.isReg() || MO.isImm()) return getMachineOpValue(MI, MO, Fixups);
 
-  
-  
+  // Add a fixup for the branch target.
+  Fixups.push_back(MCFixup::Create(0, MO.getExpr(),
+                                   (MCFixupKind)PPC::fixup_ppc_brcond14));
   return 0;
 }