As variables are discovered (while parsing the header) they are added to the 
varpool and their RTL is built.

We do not stream, nor the varpool, nor the RTL (and I don't think we want to + 
that wouldn't work with multiple pph).

We want to rebuild the varpool when streaming the global variables of the pph 
in so as to redefine them in the varpool in the same order they would have been 
found in a regular #include style parse.

I'm not sure whether "global variables, not externals" is specific enough or 
too broad (I can't reuse the caller of varpool_finalize_decl 
(rest_of_decl_compilation) to take care of this logic because it needs some 
parser state which we no longer have). I will create more tests next week with 
different orderings for functions, structs, etc. coming in from the pph.

For now, this fixes 8 tests :).

Tested with bootstrap and pph regression testing.

PS: Just realized I didn't put a comment in the code for that fix, should I add 
one?

2011-07-01  Gabriel Charette  <gch...@google.com>

        * gcc/cp/pph-streamer-in.c (pph_add_bindings_to_namespace):
        Rebuild the varpool for global variables coming in from the pph.
        * gcc/testsuite/g++.dg/pph/c120060625-1.cc: Expect no asm difference.
        * gcc/testsuite/g++.dg/pph/c1struct.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/c1variables.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/c1varorder.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/c2builtin1.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/c2builtin2.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/x1struct2.cc: Likewise.
        * gcc/testsuite/g++.dg/pph/x1variables.cc: Likewise.

diff --git a/gcc/cp/pph-streamer-in.c b/gcc/cp/pph-streamer-in.c
index 3ac5243..0ddcc75 100644
--- a/gcc/cp/pph-streamer-in.c
+++ b/gcc/cp/pph-streamer-in.c
@@ -1157,6 +1157,9 @@ pph_add_bindings_to_namespace (struct cp_binding_level 
*bl, tree ns)
         Preserve it.  */
       chain = DECL_CHAIN (t);
       pushdecl_into_namespace (t, ns);
+
+      if (TREE_CODE (t) == VAR_DECL && TREE_STATIC (t) && !DECL_EXTERNAL (t))
+       varpool_finalize_decl (t);
     }
 
   for (t = bl->namespaces; t; t = chain)
diff --git a/gcc/testsuite/g++.dg/pph/c120060625-1.cc 
b/gcc/testsuite/g++.dg/pph/c120060625-1.cc
index d09be39..05c7929 100644
--- a/gcc/testsuite/g++.dg/pph/c120060625-1.cc
+++ b/gcc/testsuite/g++.dg/pph/c120060625-1.cc
@@ -1,2 +1 @@
-// pph asm xdiff
 #include "c120060625-1.h"
diff --git a/gcc/testsuite/g++.dg/pph/c1struct.cc 
b/gcc/testsuite/g++.dg/pph/c1struct.cc
index 88c215b..8de9166 100644
--- a/gcc/testsuite/g++.dg/pph/c1struct.cc
+++ b/gcc/testsuite/g++.dg/pph/c1struct.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "c1struct.h"
 
 thing var1;
diff --git a/gcc/testsuite/g++.dg/pph/c1variables.cc 
b/gcc/testsuite/g++.dg/pph/c1variables.cc
index 12a5f30..4d3c5a7 100644
--- a/gcc/testsuite/g++.dg/pph/c1variables.cc
+++ b/gcc/testsuite/g++.dg/pph/c1variables.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "c1variables.h"
 
 int gbl_initial = 1;
diff --git a/gcc/testsuite/g++.dg/pph/c1varorder.cc 
b/gcc/testsuite/g++.dg/pph/c1varorder.cc
index a7a65ec..2791427 100644
--- a/gcc/testsuite/g++.dg/pph/c1varorder.cc
+++ b/gcc/testsuite/g++.dg/pph/c1varorder.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "c1varorder.h"
 
 int foo(void)
diff --git a/gcc/testsuite/g++.dg/pph/c2builtin1.cc 
b/gcc/testsuite/g++.dg/pph/c2builtin1.cc
index 9a3a7a1..67327cb 100644
--- a/gcc/testsuite/g++.dg/pph/c2builtin1.cc
+++ b/gcc/testsuite/g++.dg/pph/c2builtin1.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "c2builtin1.h"
 #include "c2builtin2.h"
 #include "c2builtin3.h"
diff --git a/gcc/testsuite/g++.dg/pph/c2builtin2.cc 
b/gcc/testsuite/g++.dg/pph/c2builtin2.cc
index 186ebcf..0ccae57 100644
--- a/gcc/testsuite/g++.dg/pph/c2builtin2.cc
+++ b/gcc/testsuite/g++.dg/pph/c2builtin2.cc
@@ -1,4 +1,3 @@
-// pph asm xdiff
 #include "a2builtin4.h"
 #include "c2builtin5.h"
 #include "c2builtin6.h"
diff --git a/gcc/testsuite/g++.dg/pph/x1struct2.cc 
b/gcc/testsuite/g++.dg/pph/x1struct2.cc
index be1af39..f31fb8c 100644
--- a/gcc/testsuite/g++.dg/pph/x1struct2.cc
+++ b/gcc/testsuite/g++.dg/pph/x1struct2.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "x1struct2.h"
 
 type D::method()
diff --git a/gcc/testsuite/g++.dg/pph/x1variables.cc 
b/gcc/testsuite/g++.dg/pph/x1variables.cc
index 0f0814f..f9fd76e 100644
--- a/gcc/testsuite/g++.dg/pph/x1variables.cc
+++ b/gcc/testsuite/g++.dg/pph/x1variables.cc
@@ -1,5 +1,3 @@
-// pph asm xdiff
-
 #include "x1variables.h"
 
 int D::mbr_init_plain = 4;

--
This patch is available for review at http://codereview.appspot.com/4627087

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