re PR rtl-optimization/37333 (ICE in ira_flattening, at ira-build.c:2146)

2008-09-10  Andrew Pinski  <andrew_pinski@playstation.sony.com>

       PR middle-end/37333
       * gcc.c-torture/compile/20080910-1.c: New testcase.

From-SVN: r140243

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cfa78e9..f4fca18 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-09-10  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+       PR middle-end/37333
+       * gcc.c-torture/compile/20080910-1.c: New testcase.
+
 2008-09-10  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/37432

diff --git a/gcc/testsuite/gcc.c-torture/compile/20080910-1.c b/gcc/testsuite/gcc.c-torture/compile/20080910-1.c
new file mode 100644 (file)
index 0000000..bf32775
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20080910-1.c
@@ -0,0 +1,56 @@
+/* This used to crash IRA with -O3 -fPIC.
+  See PR 37333.  */
+struct yy_buffer_state  {
+  int yy_is_interactive;
+};
+static struct yy_buffer_state * * yy_buffer_stack = 0;
+static int yy_n_chars;
+int orafce_sql_yyleng;
+unsigned char *yy_c_buf_p = 0;
+extern char *orafce_sql_yytext;
+static const int yy_ec[256] = { };
+short yy_accept[155], yy_base[193] = { }, yy_def[193] = { };
+short yy_chk[738] = { };
+unsigned char *yy_last_accepting_cpos;
+int orafce_sql_yylex (int a)
+{
+  register int yy_current_state;
+  unsigned char *yy_cp, *yy_bp;
+  register int yy_act;
+  while ( 1 )   {
+    do {
+      char yy_c = yy_ec[*yy_cp];
+      if ( yy_accept[yy_current_state] )
+       yy_last_accepting_cpos = yy_cp;
+      while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+       yy_current_state = yy_def[yy_current_state];
+    } while ( yy_current_state != 154 );
+yy_find_action:
+    yy_act = yy_accept[yy_current_state];
+    *yy_cp = '\0';
+    switch ( yy_act )  {
+      case 2:
+       *yy_cp = 1;
+       return 265;
+      case 24: 
+      case 25:
+       addlit(orafce_sql_yytext, orafce_sql_yyleng);
+      case 26:
+       addlit(orafce_sql_yytext, orafce_sql_yyleng);
+      case 53:
+       yy_fatal_error( "flex scanner jammed" );
+       break;
+      case 54:
+       yy_cp = ++(yy_c_buf_p);
+       unsigned long n = 0;
+       if ( yy_buffer_stack[0]->yy_is_interactive )
+         for ( ; _IO_getc () != (-1) ;   ++n )
+           yy_n_chars = n;
+       if (a == 0)
+       {
+         yy_current_state = yy_get_previous_state( );
+         goto yy_find_action;
+       }
+    }
+  }
+}