[testsuite, lto] Solaris 8/9 x86 testsuite fixes

[Rainer Orth <ro at CeBiTec dot Uni-Bielefeld dot DE>]

During mainline testing on Solaris 11/x86 with the older Solaris 8 and 9
assemblers (in preparation for real Solaris 8/9 testing), I've
discovered a couple of testsuite problems:

* Unlike the Solaris 10 and 11 assemblers, the older ones only
  understand comments starting with /, not #, but
  gcc.target/i386/20011009-1.c unconditionally uses the latter.  I've
  changed the test to use a macro instead, conditionalized on __sun__.

* Similarly, the older assemblers require .globl, not .global, so I've
  again conditionalized the directive used.

* Since Solaris 8 has no .hidden support and it's broken in Solaris 9
  (cf. http://gcc.gnu.org/ml/gcc-patches/2010-05/msg01267.html), several
  LTO tests were failing since several warnings weren't properly pruned:

** The `In file include from' regex contained a : which isn't present in
   the real message (and hasn't been as far back as gcc 3.4.6).

** There can also be location lines like

                 from :1:

** The pruning only happened for the main file, not for additional ones.

  The patch below fixes all those issues and allows the LTO tests to
  succeed.

Bootstrapped on i386-pc-solaris2.11 with gas 2.19, Solaris 8, 9, and 11
as.

Ok for mainline, 4.5 and 4.4 branches?

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2010-05-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* gcc.target/i386/20011009-1.c (COMMENT): Define.
	(main): Use it.
	* gcc.target/i386/pr25993.c [__sun__]: Use .globl.
	* lib/lto.exp (lto_prune_warns): Fix location line regex.
	Prune another location line format.
	(lto-obj): Call lto_prune_warns on comp_output.

diff -r e45414e86d51 gcc/testsuite/gcc.target/i386/20011009-1.c
--- a/gcc/testsuite/gcc.target/i386/20011009-1.c	Mon May 17 19:09:01 2010 +0200
+++ b/gcc/testsuite/gcc.target/i386/20011009-1.c	Mon May 17 19:10:26 2010 +0200
@@ -4,11 +4,17 @@
 extern void abort (void);
 extern void exit (int);
 
+#ifdef __sun__
+#define COMMENT "/"
+#else
+#define COMMENT "#"
+#endif
+
 int main ()
 {
   int x;
 
-  asm ("movl $26, %0 # 26 |-> reg \n\t"
+  asm ("movl $26, %0 " COMMENT " 26 |-> reg \n\t"
        "movl $28, %0" : "=r" (x));
   if (x != 28)
     abort ();
diff -r e45414e86d51 gcc/testsuite/gcc.target/i386/pr25993.c
--- a/gcc/testsuite/gcc.target/i386/pr25993.c	Mon May 17 19:09:01 2010 +0200
+++ b/gcc/testsuite/gcc.target/i386/pr25993.c	Mon May 17 19:10:26 2010 +0200
@@ -5,7 +5,11 @@
 #ifndef __ASSEMBLER__
 extern int func(void);
 #else
+#ifdef __sun__
+.globl func
+#else
 .global func
+#endif
 .type func,%function
 .align 4
 func:
diff -r e45414e86d51 gcc/testsuite/lib/lto.exp
--- a/gcc/testsuite/lib/lto.exp	Mon May 17 19:09:01 2010 +0200
+++ b/gcc/testsuite/lib/lto.exp	Mon May 17 19:10:26 2010 +0200
@@ -27,7 +27,8 @@
 
     # And any stray location lines.
     regsub -all "(^|\n)\[^\n\]*: In function \[^\n\]*" $text "" text
-    regsub -all "(^|\n)In file included from :\[^\n\]*" $text "" text
+    regsub -all "(^|\n)In file included from \[^\n\]*" $text "" text
+    regsub -all "(^|\n)\[ \t\]*from \[^\n\]*" $text "" text
 
     # Sun ld warns about common symbols with differing sizes.  Unlike GNU ld
     # --warn-common (off by default), they cannot be disabled.
@@ -137,6 +138,8 @@
 
     set compiler_conditional_xfail_data $xfaildata
     set comp_output [${tool}_target_compile "$source" "$dest" object $options]
+    # Prune unimportant visibility warnings before checking output.
+    set comp_output [lto_prune_warns $comp_output]
     ${tool}_check_compile "$testcase $dest assemble" $optstr $dest $comp_output
 }