diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index abed28d091847b0f14e2da63d9aeb534b81abea0..1626b1dcac9751eb4707df05ae04eaa972a92561 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2017-01-03  David Malcolm  <dmalcolm@redhat.com>
+
+	* gcc.dg/dg-test-1.c: Add tests of relative line specifications
+	with more than one digit.
+	* lib/gcc-dg.exp (process-message): Support more than one digit
+	in relative line specifications.
+
 2017-01-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/78965
diff --git a/gcc/testsuite/gcc.dg/dg-test-1.c b/gcc/testsuite/gcc.dg/dg-test-1.c
index ad67b2412f60f819d42413ebd87fdc1694aced06..c67f93b06560d54feb79e38d2548084541b5166c 100644
--- a/gcc/testsuite/gcc.dg/dg-test-1.c
+++ b/gcc/testsuite/gcc.dg/dg-test-1.c
@@ -16,3 +16,27 @@ void				/* { dg-warning "unused parameter 'f'" "warn2" { target *-*-* } .+1 } */
 bar (int e, int f, int g, int h)/* { dg-warning "unused parameter 'g'" "warn3" { target *-*-* } . } */
 {				/* { dg-warning "unused parameter 'h'" "warn4" { target *-*-* } .-1 } */
 }
+
+
+/* Ensure that relative line numbers with more than one digit are supported.  */
+/* { dg-warning "unused parameter 'i'" "warn5" { target *-*-* } .+10 } */
+
+
+
+
+
+
+
+
+void
+baz (int i, int j)
+{
+}
+
+
+
+
+
+
+
+/* { dg-warning "unused parameter 'j'" "warn6" { target *-*-* } .-10 } */
diff --git a/gcc/testsuite/lib/gcc-dg.exp b/gcc/testsuite/lib/gcc-dg.exp
index 9014a1d64a1450ff7bd91bcf123511800c601370..83c38cfbeb7ce10bd7ca21e2584a1a507fde84a4 100644
--- a/gcc/testsuite/lib/gcc-dg.exp
+++ b/gcc/testsuite/lib/gcc-dg.exp
@@ -990,7 +990,7 @@ proc process-message { msgproc msgprefix dgargs } {
 
     # Handle relative line specification, .+1 or .-1 etc.
     if { [llength $dgargs] == 5
-	 && [regsub "^\.\[+-\](\[0-9\])$" [lindex $dgargs 4] "\\1" num] } {
+	 && [regsub "^\.\[+-\](\[0-9\]+)$" [lindex $dgargs 4] "\\1" num] } {
 	set num [expr [lindex $dgargs 0] [string index [lindex $dgargs 4] 1] $num]
 	set dgargs [lreplace $dgargs 4 4 $num]
     }