Change the calling conventions for unboxed tuples slightly

[ghc-hetmet.git] / rts / Exception.cmm

diff --git a/rts/Exception.cmm b/rts/Exception.cmm
index 793c9ab..479c9c9 100644 (file)
--- a/rts/Exception.cmm
+++ b/rts/Exception.cmm
@@ -64,23 +64,10 @@ INFO_TABLE_RET( stg_unblockAsyncExceptionszh_ret, RET_SMALL )
          * thread, which might result in the thread being killed.
          */
 
-#ifndef REG_R1
-        /*
-         * raiseAsync assumes that the stack is in ThreadRunGHC state,
-         * i.e. with a return address on the top.  In unreg mode, the
-         * return value for IO is on top of the return address, so we
-         * need to make a small adjustment here.
-         */
-        Sp_adj(1);
-#endif
         STK_CHK_GEN( WDS(2), R1_PTR, stg_unblockAsyncExceptionszh_ret_info);
         Sp_adj(-2);
         Sp(1) = R1;
-#ifdef REG_R1
         Sp(0) = stg_gc_unpt_r1_info;
-#else
-        Sp(0) = stg_ut_1_0_unreg_info;
-#endif
         SAVE_THREAD_STATE();
         (r) = foreign "C" maybePerformBlockedException (MyCapability() "ptr", 
                                                      CurrentTSO "ptr") [R1];
@@ -94,25 +81,10 @@ INFO_TABLE_RET( stg_unblockAsyncExceptionszh_ret, RET_SMALL )
                 jump %ENTRY_CODE(Sp(0));
             }
         }
-#ifndef REG_R1
-        /* 
-         * Readjust stack in unregisterised mode if we didn't raise an
-         * exception, see above
-         */
-        else {
-            Sp_adj(-1);
-        }
-#endif
     }
 
-#ifdef REG_R1
     Sp_adj(1);
     jump %ENTRY_CODE(Sp(0));
-#else
-    Sp(1) = Sp(0);
-    Sp_adj(1);
-    jump %ENTRY_CODE(Sp(1));
-#endif
 }
 
 INFO_TABLE_RET( stg_blockAsyncExceptionszh_ret, RET_SMALL )
@@ -120,14 +92,8 @@ INFO_TABLE_RET( stg_blockAsyncExceptionszh_ret, RET_SMALL )
     StgTSO_flags(CurrentTSO) = 
        StgTSO_flags(CurrentTSO) | TSO_BLOCKEX::I32 | TSO_INTERRUPTIBLE::I32;
 
-#ifdef REG_R1
     Sp_adj(1);
     jump %ENTRY_CODE(Sp(0));
-#else
-    Sp(1) = Sp(0);
-    Sp_adj(1);
-    jump %ENTRY_CODE(Sp(1));
-#endif
 }
 
 blockAsyncExceptionszh_fast
@@ -276,11 +242,7 @@ killThreadzh_fast
    Catch frames
    -------------------------------------------------------------------------- */
 
-#ifdef REG_R1
 #define SP_OFF 0
-#else
-#define SP_OFF 1
-#endif
 
 /* Catch frames are very similar to update frames, but when entering
  * one we just pop the frame off the stack and perform the correct
@@ -292,20 +254,10 @@ INFO_TABLE_RET(stg_catch_frame, CATCH_FRAME,
   W_ unused1, W_ unused2,
 #endif
   W_ unused3, "ptr" W_ unused4)
-#ifdef REG_R1
-   {
-      Sp = Sp + SIZEOF_StgCatchFrame;
-      jump %ENTRY_CODE(Sp(SP_OFF));
-   }
-#else
    {
-      W_ rval;
-      rval = Sp(0);
       Sp = Sp + SIZEOF_StgCatchFrame;
-      Sp(0) = rval;
       jump %ENTRY_CODE(Sp(SP_OFF));
    }
-#endif
 
 /* -----------------------------------------------------------------------------
  * The catch infotable