From: Daniel Cederman <cederman@gaisler.com>
Date: Tue, 5 Dec 2023 14:26:27 +0000 (+0100)
Subject: sparc: Treat instructions with length 0 as empty
X-Git-Tag: releases/gcc-13.3.0~551
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f89f02ee9a27a8e3fab1a2bca356450e56c7bae;p=thirdparty%2Fgcc.git

sparc: Treat instructions with length 0 as empty

This is to handle the membar_empty instruction that can be generated
when compiling for UT699.

gcc/ChangeLog:

	* config/sparc/sparc.cc (next_active_non_empty_insn): Length 0 treated as empty
---

diff --git a/gcc/config/sparc/sparc.cc b/gcc/config/sparc/sparc.cc
index 38aedd20054d..f6f98ba1bc41 100644
--- a/gcc/config/sparc/sparc.cc
+++ b/gcc/config/sparc/sparc.cc
@@ -1130,6 +1130,7 @@ next_active_non_empty_insn (rtx_insn *insn)
   while (insn
 	 && (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
 	     || GET_CODE (PATTERN (insn)) == ASM_INPUT
+	     || get_attr_length (insn) == 0
 	     || (USEFUL_INSN_P (insn)
 		 && (asm_noperands (PATTERN (insn)) >= 0)
 		 && !strcmp (decode_asm_operands (PATTERN (insn),