commit eecbe7ada9a8ab913e779a27c0e90ec736eedc78
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Nov 3 17:14:23 2017 +0000

            * config/i386/i386.c (ix86_expand_prologue): Tighten assert
            for int_registers_saved.
    
    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@254386 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 086848b2c73..fd74f1f6c0c 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -14172,8 +14172,12 @@ ix86_expand_prologue (void)
       && (flag_stack_check == STATIC_BUILTIN_STACK_CHECK
 	  || flag_stack_clash_protection))
     {
-      /* We expect the registers to be saved when probes are used.  */
-      gcc_assert (int_registers_saved);
+      /* This assert wants to verify that integer registers were saved
+	 prior to probing.  This is necessary when probing may be implemented
+	 as a function call (Windows).  It is not necessary for stack clash
+	 protection probing.  */
+      if (!flag_stack_clash_protection)
+	gcc_assert (int_registers_saved);
 
       if (flag_stack_clash_protection)
 	{