Mercurial > hg > CbC > CbC_gcc

diff gcc/combine-stack-adj.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
line wrap: on
line diff
--- a/gcc/combine-stack-adj.c	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/combine-stack-adj.c	Thu Oct 25 07:37:49 2018 +0900
@@ -1,5 +1,5 @@
 /* Combine stack adjustments.
-   Copyright (C) 1987-2017 Free Software Foundation, Inc.
+   Copyright (C) 1987-2018 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -133,6 +133,7 @@
 	  && SET_SRC (this_rtx) == SET_DEST (this_rtx))
 	;
       else if (GET_CODE (this_rtx) != CLOBBER
+	       && GET_CODE (this_rtx) != CLOBBER_HIGH
 	       && GET_CODE (this_rtx) != USE)
 	return NULL_RTX;
     }
@@ -622,11 +623,11 @@
 	  if (MEM_P (dest)
 	      && ((STACK_GROWS_DOWNWARD
 		   ? (GET_CODE (XEXP (dest, 0)) == PRE_DEC
-		      && last_sp_adjust
-			 == (HOST_WIDE_INT) GET_MODE_SIZE (GET_MODE (dest)))
+		      && known_eq (last_sp_adjust,
+				   GET_MODE_SIZE (GET_MODE (dest))))
 		   : (GET_CODE (XEXP (dest, 0)) == PRE_INC
-		      && last_sp_adjust
-		         == -(HOST_WIDE_INT) GET_MODE_SIZE (GET_MODE (dest))))
+		      && known_eq (-last_sp_adjust,
+				   GET_MODE_SIZE (GET_MODE (dest)))))
 		  || ((STACK_GROWS_DOWNWARD
 		       ? last_sp_adjust >= 0 : last_sp_adjust <= 0)
 		      && GET_CODE (XEXP (dest, 0)) == PRE_MODIFY