From: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date: Thu, 29 Dec 2022 12:14:33 +0000 (+0900)
Subject: xtensa: Check DF availability before use
X-Git-Tag: basepoints/gcc-14~2291
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=65fed695f7b2eb99dfd679fbdfcf510104de2fb8;p=thirdparty%2Fgcc.git

xtensa: Check DF availability before use

Perhaps no problem, but for safety.

gcc/ChangeLog:

	* config/xtensa/xtensa.cc (xtensa_expand_prologue): Fix to check
	DF availability before use of DF_* macros.
---

diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index 66e253495211..e726a115029f 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -3322,7 +3322,7 @@ xtensa_expand_prologue (void)
 				  || crtl->calls_eh_return;
 
       /* Check if the function body really needs the stack pointer.  */
-      if (!stack_pointer_needed)
+      if (!stack_pointer_needed && df)
 	for (ref = DF_REG_USE_CHAIN (A1_REG);
 	     ref; ref = DF_REF_NEXT_REG (ref))
 	  if (DF_REF_CLASS (ref) == DF_REF_REGULAR