(calc_live_regs): need not save MACL/MACH when not live, and in leaf function.

From-SVN: r13627

(calc_live_regs): need not save MACL/MACH when not live, and in leaf function.
From-SVN: r13627
cf641ce6 · Joern Rennecke · f3e9068e · cf641ce6
Commit cf641ce6 authored Feb 11, 1997 by Joern Rennecke
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gcc/config/sh/sh.c
+3 -4

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--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -2590,10 +2590,9 @@ calc_live_regs (count_ptr, live_regs_mask2)
 	{
 	  /* Need to save all the regs ever live.  */
 	  if ((regs_ever_live[reg]
-	       || (call_used_regs[reg] && ! fixed_regs[reg]
-		   && regs_ever_live[PR_REG])
-	       || reg == MACH_REG
-	       || reg == MACL_REG)
+	       || (call_used_regs[reg]
+		   && (! fixed_regs[reg] || reg == MACH_REG || reg == MACL_REG)
+		   && regs_ever_live[PR_REG]))
 	      && reg != STACK_POINTER_REGNUM && reg != ARG_POINTER_REGNUM
 	      && reg != RETURN_ADDRESS_POINTER_REGNUM
 	      && reg != T_REG && reg != GBR_REG)