PR target/41985

	* config/i386/i386.c (get_some_local_dynamic_name): Don't assert
	function contains at least one local dynamic name.
	(print_operand) <case '&'>: Instead output operand lossage diagnostics
	here if that happens.

	* gcc.target/i386/pr41985.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154014 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aeb880e..fcf7973 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2009-11-08  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/41985
+       * config/i386/i386.c (get_some_local_dynamic_name): Don't assert
+       function contains at least one local dynamic name.
+       (print_operand) <case '&'>: Instead output operand lossage diagnostics
+       here if that happens.
+
 2009-11-08  Zbigniew Chamski  <zbigniew.chamski@gmail.com>
            Joern Rennecke  <amylaar@spamcop.net>
 

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 2031dfb..da7e8f9 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -11301,7 +11301,7 @@ get_some_local_dynamic_name (void)
        && for_each_rtx (&PATTERN (insn), get_some_local_dynamic_name_1, 0))
       return cfun->machine->some_ld_name;
 
-  gcc_unreachable ();
+  return NULL;
 }
 
 /* Meaning of CODE:
@@ -11353,8 +11353,15 @@ print_operand (FILE *file, rtx x, int code)
          return;
 
        case '&':
-         assemble_name (file, get_some_local_dynamic_name ());
-         return;
+         {
+           const char *name = get_some_local_dynamic_name ();
+           if (name == NULL)
+             output_operand_lossage ("'%%&' used without any "
+                                     "local dynamic TLS references");
+           else
+             assemble_name (file, name);
+           return;
+         }
 
        case 'A':
          switch (ASSEMBLER_DIALECT)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9282ec3..550315a 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2009-11-08  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/41985
+       * gcc.target/i386/pr41985.c: New test.
+
 2009-11-08  Richard Guenther  <rguenther@suse.de>
 
        * gcc.dg/torture/pta-escape-1.c: New testcase.

diff --git a/gcc/testsuite/gcc.target/i386/pr41985.c b/gcc/testsuite/gcc.target/i386/pr41985.c
new file mode 100644 (file)
index 0000000..b38b6dc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr41985.c
@@ -0,0 +1,11 @@
+/* PR target/41985 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+int
+main ()
+{
+  int i;
+  asm volatile ("# %&": : "g" (i));    /* { dg-error "used without any local dynamic TLS references" } */
+  return 0;
+}