diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d22f02c97b4..aaf031b4596 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-10  Jack Howarth <howarth@bromo.med.uc.edu>
+
+	PR target/42070
+	* gcc/testsuite/lib/profopt.exp: Prune warnings on execname2 compile.
+	* gcc/testsuite/lib/prune.exp: Prune "can't add line info" warnings.
+
 2010-09-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libfortran/45532
diff --git a/gcc/testsuite/lib/profopt.exp b/gcc/testsuite/lib/profopt.exp
index a9989b43ea4..0a123d76e33 100644
--- a/gcc/testsuite/lib/profopt.exp
+++ b/gcc/testsuite/lib/profopt.exp
@@ -328,6 +328,10 @@ proc profopt-execute { src } {
 	lappend options "additional_flags=$option $extra_flags $feedback_option"
 	set optstr "$option $feedback_option"
 	set comp_output [${tool}_target_compile "$src" "$execname2" "executable" $options]
+
+	# Prune warnings we know are unwanted.
+	set comp_output [prune_warnings $comp_output]
+
 	if ![${tool}_check_compile "$testcase compilation" $optstr $execname2 $comp_output] {
  	    unresolved "$testcase execution,   $optstr"
 	    continue
diff --git a/gcc/testsuite/lib/prune.exp b/gcc/testsuite/lib/prune.exp
index 769169d4271..acb807fac0e 100644
--- a/gcc/testsuite/lib/prune.exp
+++ b/gcc/testsuite/lib/prune.exp
@@ -49,6 +49,9 @@ proc prune_gcc_output { text } {
     regsub -all "(^|\n)\[^\n\]*file path prefix \[^\n\]* never used" $text "" text
     regsub -all "(^|\n)\[^\n\]*linker input file unused since linking not done" $text "" text
 
+    # Ignore harmless warnings from Xcode 3.2.x.
+    regsub -all "(^|\n)\[^\n\]*ld: warning: can't add line info to anonymous symbol\[^\n\]*" $text "" text
+
     #send_user "After:$text\n"
 
     return $text