[testsuite/guality] Use relative line numbers in gdb-test

2018-06-30  Tom de Vries  <tdevries@suse.de>

	* gcc.dg/guality/pr45882.c (foo): Use relative line numbers.
	* lib/gcc-dg.exp (dg-final): New proc.
	* lib/gcc-gdb-test.exp (gdb-test): Add and handle additional line number
	argument.

From-SVN: r262269

gcc/testsuite/ChangeLog

+2018-06-30  Tom de Vries  <tdevries@suse.de>
+
+	* gcc.dg/guality/pr45882.c (foo): Use relative line numbers.
+	* lib/gcc-dg.exp (dg-final): New proc.
+	* lib/gcc-gdb-test.exp (gdb-test): Add and handle additional line number
+	argument.
+
 2018-06-29  Martin Sebor  <msebor@redhat.com>
 
 	* gcc.dg/strlenopt-46.c: Define strnlen for targets like Solaris 10

gcc/testsuite/gcc.dg/guality/pr45882.c

@@ -9,11 +9,11 @@ volatile short int v;
 __attribute__((noinline,noclone,used)) int
 foo (int i, int j)
 {
-  int b = i;		/* { dg-final { gdb-test bpline "b" "7" } } */
-  int c = i + 4;	/* { dg-final { gdb-test bpline "c" "11" } } */
-  int d = a[i];		/* { dg-final { gdb-test bpline "d" "112" } } */
-  int e = a[i + 6];	/* { dg-final { gdb-test bpline "e" "142" } } */
-  ++v;			/* { dg-line bpline } */
+  int b = i;		/* { dg-final { gdb-test .+4 "b" "7" } } */
+  int c = i + 4;	/* { dg-final { gdb-test .+3 "c" "11" } } */
+  int d = a[i];		/* { dg-final { gdb-test .+2 "d" "112" } } */
+  int e = a[i + 6];	/* { dg-final { gdb-test .+1 "e" "142" } } */
+  ++v;
   return ++j;
 }
 

gcc/testsuite/lib/gcc-dg.exp

@@ -114,6 +114,26 @@ if [info exists ADDITIONAL_TORTURE_OPTIONS] {
 	[concat $DG_TORTURE_OPTIONS $ADDITIONAL_TORTURE_OPTIONS]
 }
 
+proc dg-final { args } {
+    upvar dg-final-code final-code
+
+    if { [llength $args] > 2 } {
+	error "[lindex $args 0]: too many arguments"
+    }
+    set line [lindex $args 0]
+    set code [lindex $args 1]
+    set directive [lindex $code 0]
+    set withline \
+	[switch $directive {
+	    gdb-test {expr {1}}
+	    default  {expr {0}}
+	}]
+    if { $withline == 1 } {
+	set code [linsert $code 1 $line]
+    }
+    append final-code "$code\n"
+}
+
 global orig_environment_saved
 
 # Deduce generated files from tool flags, return finalcode string

gcc/testsuite/lib/gcc-gdb-test.exp

@@ -26,7 +26,7 @@
 #   calling print on it in gdb. When asking for the type it is
 #   the literal string with extra whitespace removed.
 # Argument 3 handles expected failures and the like
-proc gdb-test { args } {
+proc gdb-test { useline args } {
     if { ![isnative] || [is_remote target] } { return }
 
     if { [llength $args] >= 4 } {
@@ -60,7 +60,7 @@ proc gdb-test { args } {
     set cmd_file "[file rootname [file tail $prog]].gdb"
 
     set fd [open $cmd_file "w"]
-    set line [get-absolute-line "" [lindex $args 0]]
+    set line [get-absolute-line $useline [lindex $args 0]]
     puts $fd "break $line"
     puts $fd "run"
     puts $fd "$command $var"