From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 4 Dec 2015 16:40:05 +0000 (+0100)
Subject: * tree-tailcall.c (find_tail_calls): Ignore GIMPLE_NOPs.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5c24689633f109abfc2b9b6c62f327c805c49fa4;p=gcc.git

* tree-tailcall.c (find_tail_calls): Ignore GIMPLE_NOPs.

From-SVN: r231282
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b6ff6e162f5..d9a0bf89569 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 2015-12-04  Jakub Jelinek  <jakub@redhat.com>
 
+	* tree-tailcall.c (find_tail_calls): Ignore GIMPLE_NOPs.
+
 	PR tree-optimization/68680
 	* calls.c (special_function_p): Return ECF_MAY_BE_ALLOCA for
 	BUILT_IN_ALLOCA{,_WITH_ALIGN}.  Don't check for __builtin_alloca
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index bbd1b29ae48..a2585fbc533 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -412,9 +412,10 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
     {
       stmt = gsi_stmt (gsi);
 
-      /* Ignore labels, returns, clobbers and debug stmts.  */
+      /* Ignore labels, returns, nops, clobbers and debug stmts.  */
       if (gimple_code (stmt) == GIMPLE_LABEL
 	  || gimple_code (stmt) == GIMPLE_RETURN
+	  || gimple_code (stmt) == GIMPLE_NOP
 	  || gimple_clobber_p (stmt)
 	  || is_gimple_debug (stmt))
 	continue;
@@ -532,7 +533,8 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
 
       stmt = gsi_stmt (agsi);
 
-      if (gimple_code (stmt) == GIMPLE_LABEL)
+      if (gimple_code (stmt) == GIMPLE_LABEL
+	  || gimple_code (stmt) == GIMPLE_NOP)
 	continue;
 
       if (gimple_code (stmt) == GIMPLE_RETURN)