2014-03-04 Richard Biener <rguenther@suse.de>

	PR lto/60405
	* lto-streamer-in.c (lto_read_body): Remove LTO bytecode version
	check.
	(lto_input_toplevel_asms): Likewise.
	* lto-section-in.c (lto_get_section_data): Instead do it here
	for every section.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208311 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 23 insertions, 19 deletions

diff --git a/gcc/lto-section-in.c b/gcc/lto-section-in.c
index 47f9739c4d0..60346dc7a26 100644
--- a/gcc/lto-section-in.c
+++ b/gcc/lto-section-in.c
@@ -153,26 +153,30 @@ lto_get_section_data (struct lto_file_decl_data *file_data,
 
   /* FIXME lto: WPA mode does not write compressed sections, so for now
      suppress uncompression if flag_ltrans.  */
-  if (flag_ltrans)
-    return data;
-
-  /* Create a mapping header containing the underlying data and length,
-     and prepend this to the uncompression buffer.  The uncompressed data
-     then follows, and a pointer to the start of the uncompressed data is
-     returned.  */
-  header = (struct lto_data_header *) xmalloc (header_length);
-  header->data = data;
-  header->len = *len;
-
-  buffer.data = (char *) header;
-  buffer.length = header_length;
-
-  stream = lto_start_uncompression (lto_append_data, &buffer);
-  lto_uncompress_block (stream, data, *len);
-  lto_end_uncompression (stream);
+  if (!flag_ltrans)
+    {
+      /* Create a mapping header containing the underlying data and length,
+	 and prepend this to the uncompression buffer.  The uncompressed data
+	 then follows, and a pointer to the start of the uncompressed data is
+	 returned.  */
+      header = (struct lto_data_header *) xmalloc (header_length);
+      header->data = data;
+      header->len = *len;
+
+      buffer.data = (char *) header;
+      buffer.length = header_length;
+
+      stream = lto_start_uncompression (lto_append_data, &buffer);
+      lto_uncompress_block (stream, data, *len);
+      lto_end_uncompression (stream);
+
+      *len = buffer.length - header_length;
+      data = buffer.data + header_length;
+    }
 
-  *len = buffer.length - header_length;
-  return buffer.data + header_length;
+  lto_check_version (((lto_header *)data)->major_version,
+		     ((lto_header *)data)->minor_version);
+  return data;
 }