PIC support for PowerPC

PPC.CodeGen.getRegister was not properly handling PicBaseReg.
It seems working with this patch, but I'm not sure this change is correct.

diff --git a/compiler/nativeGen/PPC/CodeGen.hs b/compiler/nativeGen/PPC/CodeGen.hs
index 1215b2e..a1b55ce 100644 (file)
--- a/compiler/nativeGen/PPC/CodeGen.hs
+++ b/compiler/nativeGen/PPC/CodeGen.hs
@@ -377,6 +377,11 @@ iselExpr64 expr
 
 getRegister :: CmmExpr -> NatM Register
 
+getRegister (CmmReg (CmmGlobal PicBaseReg))
+  = do
+      reg <- getPicBaseNat archWordSize
+      return (Fixed archWordSize reg nilOL)
+
 getRegister (CmmReg reg) 
   = return (Fixed (cmmTypeSize (cmmRegType reg)) 
                  (getRegisterReg reg) nilOL)