(HARD_REGNO_MODE_OK): Multi-word objects cannot go into MQ, LR, or CTR.

From-SVN: r5867

(HARD_REGNO_MODE_OK): Multi-word objects cannot go into MQ, LR, or CTR.
From-SVN: r5867
ec559d0c · Richard Kenner · 894715dd · ec559d0c
Commit ec559d0c authored Oct 21, 1993 by Richard Kenner
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gcc/config/rs6000/rs6000.h
+2 -1

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--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -404,7 +404,8 @@ extern char *rs6000_cpu_string;
 #define HARD_REGNO_MODE_OK(REGNO, MODE) \
  (FP_REGNO_P (REGNO) ? GET_MODE_CLASS (MODE) == MODE_FLOAT	\
   : CR_REGNO_P (REGNO) ? GET_MODE_CLASS (MODE) == MODE_CC	\
-   : ! INT_REGNO_P (REGNO) ? GET_MODE_CLASS (MODE) == MODE_INT	\
+   : ! INT_REGNO_P (REGNO) ? (GET_MODE_CLASS (MODE) == MODE_INT  \
+			      && GET_MODE_SIZE (MODE) <= UNITS_PER_WORD)  \
   : 1)

 /* Value is 1 if it is a good idea to tie two pseudo registers