binutils/testsuite/

	* lib/binutils-common.exp (regexp_diff): New procedure.
	* lib/utils-lib.exp (regexp_diff): Delete.

gas/testsuite/
	* lib/gas-defs.exp (regexp_diff): Delete.
	(run_dump_test): Remove final "" argument in call to regexp_diff.
	(run_list_test): Likewise.
	(run_list_test_stdin): Likewise.
	* gas/all/gas.exp (test_cond): Likewise.
	* gas/elf/elf.exp (run_elf_list_test): Likewise.
	* gas/m68k/all.exp: Likewise.
	* gas/mep/complex-relocs.exp (regexp_test): Likewise.
	* gas/mt/relocs.exp (regexp_test): Likewise.
	* gas/symver/symver.exp (run_error_test): Likewise.

ld/testsuite/
	* lib/ld-lib.exp (regexp_diff, simple_diff): Delete.

13 files changed, 192 insertions, 420 deletions

diff --git a/binutils/testsuite/ChangeLog b/binutils/testsuite/ChangeLog
index 0c29b9c..e044acc 100644
--- a/binutils/testsuite/ChangeLog
+++ b/binutils/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* lib/binutils-common.exp (regexp_diff): New procedure.
+	* lib/utils-lib.exp (regexp_diff): Delete.
+
+2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* lib/binutils-common.exp: New file.
 	* lib/utils-lib.exp (load_common_lib): New function.  Load
 	binutils-common.exp.
diff --git a/binutils/testsuite/lib/binutils-common.exp b/binutils/testsuite/lib/binutils-common.exp
index 96b1955..2f8b426 100644
--- a/binutils/testsuite/lib/binutils-common.exp
+++ b/binutils/testsuite/lib/binutils-common.exp
@@ -149,3 +149,157 @@ proc is_elf64 { binary_file } {
 
     return 0
 }
+
+# Compare two files line-by-line.  FILE_1 is the actual output and FILE_2
+# is the expected output.  Ignore blank lines in either file.
+#
+# FILE_2 is a series of regexps, comments and # directives.  The directives
+# are:
+#
+#    #pass
+#        Treat the test as a PASS if everything up till this point has
+#        matched.  Ignore any remaining lines in either FILE_1 or FILE_2.
+#
+#    #failif
+#        Reverse the sense of the test: expect differences to exist.
+#
+#    #...
+#    REGEXP
+#        Skip all lines in FILE_1 until the first that matches REGEXP.
+#
+# Other # lines are comments.  Skip empty lines in both files.
+#
+# The first optional argument is a list of regexp substitutions of the form:
+#
+#    EXP1 SUBSPEC1 EXP2 SUBSPEC2 ...
+#
+# This tells the function to apply each regexp substitution EXPi->SUBSPECi
+# in order to every line of FILE_2.
+#
+# Return nonzero if differences exist.
+proc regexp_diff { file_1 file_2 args } {
+    set eof -1
+    set end_1 0
+    set end_2 0
+    set differences 0
+    set diff_pass 0
+    set fail_if_match 0
+    set ref_subst ""
+    if { [llength $args] > 0 } {
+	set ref_subst [lindex $args 0]
+    }
+    if { [llength $args] > 1 } {
+	perror "Too many arguments to regexp_diff"
+	return 1
+    }
+
+    if [file exists $file_1] then {
+	set file_a [open $file_1 r]
+    } else {
+	perror "$file_1 doesn't exist"
+	return 1
+    }
+
+    if [file exists $file_2] then {
+	set file_b [open $file_2 r]
+    } else {
+	perror "$file_2 doesn't exist"
+	close $file_a
+	return 1
+    }
+
+    verbose " Regexp-diff'ing: $file_1 $file_2" 2
+
+    while { 1 } {
+	set line_a ""
+	set line_b ""
+	while { [string length $line_a] == 0 } {
+	    # Ignore blank line in FILE_1.
+	    if { [gets $file_a line_a] == $eof } {
+		set end_1 1
+		break
+	    }
+	}
+	while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
+	    if { [string match "#pass" $line_b] } {
+		set end_2 1
+		set diff_pass 1
+		break
+	    } elseif { [string match "#failif" $line_b] } {
+		send_log "fail if no difference\n"
+		verbose "fail if no difference" 3
+		set fail_if_match 1
+	    } elseif { [string match "#..." $line_b] } {
+		if { [gets $file_b line_b] == $eof } {
+		    set end_2 1
+		    set diff_pass 1
+		    break
+		}
+		# Substitute on the reference.
+		foreach {name value} $ref_subst {
+		    regsub -- $name $line_b $value line_b
+		}
+		verbose "looking for \"^$line_b$\"" 3
+		while { ![regexp "^$line_b$" "$line_a"] } {
+		    verbose "skipping    \"$line_a\"" 3
+		    if { [gets $file_a line_a] == $eof } {
+			set end_1 1
+			break
+		    }
+		}
+		break
+	    }
+	    if { [gets $file_b line_b] == $eof } {
+		set end_2 1
+		break
+	    }
+	}
+
+	if { $diff_pass } {
+	    break
+	} elseif { $end_1 && $end_2 } {
+	    break
+	} elseif { $end_1 } {
+	    send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
+	    verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
+	    set differences 1
+	    break
+	} elseif { $end_2 } {
+	    send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
+	    verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
+	    set differences 1
+	    break
+	} else {
+	    # Substitute on the reference.
+	    foreach {name value} $ref_subst {
+		regsub -- $name $line_b $value line_b
+	    }
+	    verbose "regexp \"^$line_b$\"\nline   \"$line_a\"" 3
+	    if { ![regexp "^$line_b$" "$line_a"] } {
+		send_log "regexp_diff match failure\n"
+		send_log "regexp \"^$line_b$\"\nline   \"$line_a\"\n"
+		verbose "regexp_diff match failure\n" 3
+		set differences 1
+	    }
+	}
+    }
+
+    if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
+	send_log "$file_1 and $file_2 are different lengths\n"
+	verbose "$file_1 and $file_2 are different lengths" 3
+	set differences 1
+    }
+
+    if { $fail_if_match } {
+	if { $differences == 0 } {
+	    set differences 1
+	} else {
+	    set differences 0
+	}
+    }
+
+    close $file_a
+    close $file_b
+
+    return $differences
+}
diff --git a/binutils/testsuite/lib/utils-lib.exp b/binutils/testsuite/lib/utils-lib.exp
index 6dbbecf..72e368c 100644
--- a/binutils/testsuite/lib/utils-lib.exp
+++ b/binutils/testsuite/lib/utils-lib.exp
@@ -242,8 +242,8 @@ proc exe_ext {} {
 #
 # After the option lines come regexp lines.  `run_dump_test' calls
 # `regexp_diff' to compare the output of the dumping tool against the
-# regexps in FILE.d.  `regexp_diff' is defined later in this file; see
-# further comments there.
+# regexps in FILE.d.  `regexp_diff' is defined in binutils-common.exp;
+# see further comments there.
 
 proc run_dump_test { name {extra_options {}} } {
     global subdir srcdir
@@ -538,110 +538,6 @@ proc slurp_options { file } {
     return $opt_array
 }
 
-# regexp_diff, based on simple_diff taken from ld test suite
-#	compares two files line-by-line
-#	file1 contains strings, file2 contains regexps and #-comments
-#	blank lines are ignored in either file
-#	returns non-zero if differences exist
-#
-proc regexp_diff { file_1 file_2 } {
-
-    set eof -1
-    set end_1 0
-    set end_2 0
-    set differences 0
-    set diff_pass 0
-
-    if [file exists $file_1] then {
-	set file_a [open $file_1 r]
-    } else {
-	perror "$file_1 doesn't exist"
-	return 1
-    }
-
-    if [file exists $file_2] then {
-	set file_b [open $file_2 r]
-    } else {
-	perror "$file_2 doesn't exist"
-	close $file_a
-	return 1
-    }
-
-    verbose " Regexp-diff'ing: $file_1 $file_2" 2
-
-    while { 1 } {
-	set line_a ""
-	set line_b ""
-	while { [string length $line_a] == 0 } {
-	    if { [gets $file_a line_a] == $eof } {
-		set end_1 1
-		break
-	    }
-	}
-	while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
-	    if [ string match "#pass" $line_b ] {
-		set end_2 1
-		set diff_pass 1
-		break
-	    } elseif [ string match "#..." $line_b ] {
-		if { [gets $file_b line_b] == $eof } {
-		    set end_2 1
-		    set diff_pass 1
-		    break
-		}
-		verbose "looking for \"^$line_b$\"" 3
-		while { ![regexp "^$line_b$" "$line_a"] } {
-		    verbose "skipping    \"$line_a\"" 3
-		    if { [gets $file_a line_a] == $eof } {
-			set end_1 1
-			break
-		    }
-		}
-		break
-	    }
-	    if { [gets $file_b line_b] == $eof } {
-		set end_2 1
-		break
-	    }
-	}
-
-        if { $diff_pass } {
-            break
-        } elseif { $end_1 && $end_2 } {
-            break
-        } elseif { $end_1 } {
-            send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
-            verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
-            set differences 1
-            break
-        } elseif { $end_2 } {
-            send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
-            verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
-            set differences 1
-            break
-        } else {
-            verbose "regexp \"^$line_b$\"\nline   \"$line_a\"" 3
-            if ![regexp "^$line_b$" "$line_a"] {
-		send_log "regexp_diff match failure\n"
-		send_log "regexp \"^$line_b$\"\nline   \"$line_a\"\n"
-		verbose "regexp_diff match failure\n" 3
-		set differences 1
-            }
-        }
-    }
-
-    if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
-	send_log "$file_1 and $file_2 are different lengths\n"
-	verbose "$file_1 and $file_2 are different lengths" 3
-	set differences 1
-    }
-
-    close $file_a
-    close $file_b
-
-    return $differences
-}
-
 proc file_contents { filename } {
     set file [open $filename r]
     set contents [read $file]
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index d158385..90b3bfc 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,5 +1,18 @@
 2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* lib/gas-defs.exp (regexp_diff): Delete.
+	(run_dump_test): Remove final "" argument in call to regexp_diff.
+	(run_list_test): Likewise.
+	(run_list_test_stdin): Likewise.
+	* gas/all/gas.exp (test_cond): Likewise.
+	* gas/elf/elf.exp (run_elf_list_test): Likewise.
+	* gas/m68k/all.exp: Likewise.
+	* gas/mep/complex-relocs.exp (regexp_test): Likewise.
+	* gas/mt/relocs.exp (regexp_test): Likewise.
+	* gas/symver/symver.exp (run_error_test): Likewise.
+
+2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* lib/gas-defs.exp (load_common_lib): New function.  Load
 	binutils-common.exp.
 	(is_elf_format, is_aout_format, is_pecoff_format): Delete.
diff --git a/gas/testsuite/gas/all/gas.exp b/gas/testsuite/gas/all/gas.exp
index 1dd7cbb..c41db98 100644
--- a/gas/testsuite/gas/all/gas.exp
+++ b/gas/testsuite/gas/all/gas.exp
@@ -308,7 +308,7 @@ proc test_cond {} {
 	send_log "$comp_output\n"
 	fail $testname
     } else {
-	if { [regexp_diff dump.out $srcdir/$subdir/cond.l ""] } {
+	if { [regexp_diff dump.out $srcdir/$subdir/cond.l] } {
 	    fail $testname
 	} else {
 	    pass $testname
diff --git a/gas/testsuite/gas/elf/elf.exp b/gas/testsuite/gas/elf/elf.exp
index 1aebf8a..3babe0b 100644
--- a/gas/testsuite/gas/elf/elf.exp
+++ b/gas/testsuite/gas/elf/elf.exp
@@ -9,7 +9,7 @@ proc run_elf_list_test { name suffix opts readelf_opts readelf_pipe } {
     set file $srcdir/$subdir/$name
     gas_run ${name}.s "$opts -o dump.o" ">&dump.out"
     if { ![string match "" $opts]
-	  && [regexp_diff "dump.out" "${file}.l" ""] } then {
+	  && [regexp_diff "dump.out" "${file}.l"] } then {
 	fail $testname
 	verbose "output is [file_contents "dump.out"]" 2
 	return
@@ -28,7 +28,7 @@ proc run_elf_list_test { name suffix opts readelf_opts readelf_pipe } {
 	return
     }
     verbose_eval {[file_contents "dump.out"]} 3
-    if { [regexp_diff "dump.out" "${file}.e${suffix}" ""] } then {
+    if { [regexp_diff "dump.out" "${file}.e${suffix}"] } then {
 	fail $testname
 	verbose "output is [file_contents "dump.out"]" 2
 	return
diff --git a/gas/testsuite/gas/m68k/all.exp b/gas/testsuite/gas/m68k/all.exp
index 443fdb6..f4bdfa7 100644
--- a/gas/testsuite/gas/m68k/all.exp
+++ b/gas/testsuite/gas/m68k/all.exp
@@ -83,7 +83,7 @@ if { [istarget m68*-*-*] || [istarget fido*-*-*] } then {
 	verbose "$comp_output" 3
 	fail $testname
     } else {
-	if [regexp_diff "err.out" "$srcdir/$subdir/op68000.d" ""] then {
+	if [regexp_diff "err.out" "$srcdir/$subdir/op68000.d"] then {
 	    fail $testname
 	} else {
 	    pass $testname
diff --git a/gas/testsuite/gas/mep/complex-relocs.exp b/gas/testsuite/gas/mep/complex-relocs.exp
index a5a3127..83d89bb 100644
--- a/gas/testsuite/gas/mep/complex-relocs.exp
+++ b/gas/testsuite/gas/mep/complex-relocs.exp
@@ -18,7 +18,7 @@ proc objdump_test { exec flags dest test } {
 }
 
 proc regexp_test { file1 file2 test } {
-    if [regexp_diff $file1 $file2 ""] then { fail $test } else { pass $test }
+    if [regexp_diff $file1 $file2] then { fail $test } else { pass $test }
 }
 
 
diff --git a/gas/testsuite/gas/mt/relocs.exp b/gas/testsuite/gas/mt/relocs.exp
index d47742e..076f428 100644
--- a/gas/testsuite/gas/mt/relocs.exp
+++ b/gas/testsuite/gas/mt/relocs.exp
@@ -15,7 +15,7 @@ proc objdump_test { exec flags dest test } {
 }
 
 proc regexp_test { file1 file2 test } {
-    if [regexp_diff $file1 $file2 ""] then { fail $test } else { pass $test }
+    if [regexp_diff $file1 $file2] then { fail $test } else { pass $test }
 }
 
 
diff --git a/gas/testsuite/gas/symver/symver.exp b/gas/testsuite/gas/symver/symver.exp
index b4caae9..6fcae0e 100644
--- a/gas/testsuite/gas/symver/symver.exp
+++ b/gas/testsuite/gas/symver/symver.exp
@@ -6,7 +6,7 @@ proc run_error_test { name opts } {
     set testname "symver $name"
     set file $srcdir/$subdir/$name
     gas_run ${name}.s $opts ">&dump.out"
-    if { [regexp_diff "dump.out" "${file}.l" ""] } then {
+    if { [regexp_diff "dump.out" "${file}.l"] } then {
 	fail $testname
 	verbose "output is [file_contents "dump.out"]" 2
 	return
diff --git a/gas/testsuite/lib/gas-defs.exp b/gas/testsuite/lib/gas-defs.exp
index cacfb50..f10d72a 100644
--- a/gas/testsuite/lib/gas-defs.exp
+++ b/gas/testsuite/lib/gas-defs.exp
@@ -427,8 +427,8 @@ proc run_dump_tests { testcases {extra_options {}} } {
 #
 # After the option lines come regexp lines.  `run_dump_test' calls
 # `regexp_diff' to compare the output of the dumping tool against the
-# regexps in FILE.d.  `regexp_diff' is defined later in this file; see
-# further comments there.
+# regexps in FILE.d.  `regexp_diff' is defined in binutils-common.exp;
+# see further comments there.
 
 proc run_dump_test { name {extra_options {}} } {
     global subdir srcdir
@@ -679,7 +679,7 @@ proc run_dump_test { name {extra_options {}} } {
 	    }
 	    set stderrfile $srcdir/$subdir/$opts(stderr)
 	    verbose "wrote pruned stderr to dump.stderr" 3
-	    if { [regexp_diff "dump.stderr" "$stderrfile" ""] } then {
+	    if { [regexp_diff "dump.stderr" "$stderrfile"] } then {
 		if { $opts(error) != "" } {
 		    verbose -log "$exitstat with: <$comp_output>, expected: <$opts(error)>"
 		    if [regexp $opts(error) $comp_output] {
@@ -839,120 +839,6 @@ expect_after -i {
     eof				{ perror "eof" }
 }
 
-# regexp_diff, based on simple_diff taken from ld test suite.
-#	Compares two files line-by-line.
-#	FILE_1 contains strings, FILE_2 contains regexps and #-comments
-#	Blank lines are ignored in either file.
-#	Subsitutions in REF_SUBST are applied on FILE_2 lines.
-#	Returns non-zero if differences exist.
-#
-proc regexp_diff { file_1 file_2 ref_subst} {
-
-    set eof -1
-    set end_1 0
-    set end_2 0
-    set differences 0
-    set diff_pass 0
-
-    if [file exists $file_1] then {
-	set file_a [open $file_1 r]
-    } else {
-	perror "$file_1 doesn't exist"
-	return 1
-    }
-
-    if [file exists $file_2] then {
-	set file_b [open $file_2 r]
-    } else {
-	perror "$file_2 doesn't exist"
-	close $file_a
-	return 1
-    }
-
-    verbose " Regexp-diff'ing: $file_1 $file_2" 2
-
-    while { 1 } {
-	set line_a ""
-	set line_b ""
-	while { [string length $line_a] == 0 } {
-            # Ignore blank line in FILE_1.
-	    if { [gets $file_a line_a] == $eof } {
-		set end_1 1
-		break
-	    }
-	}
-	while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
-	    if [ string match "#pass" $line_b ] {
-		set end_2 1
-		set diff_pass 1
-		break
-	    } elseif [ string match "#..." $line_b ] {
-		if { [gets $file_b line_b] == $eof } {
-		    set end_2 1
-		    set diff_pass 1
-		    break
-		}
-                # Substitute on the reference.
-                foreach {name value} $ref_subst {
-                    regsub -- $name $line_b $value line_b
-                }
-		verbose "looking for \"^$line_b$\"" 3
-		while { ![regexp "^$line_b$" "$line_a"] } {
-		    verbose "skipping    \"$line_a\"" 3
-		    if { [gets $file_a line_a] == $eof } {
-			set end_1 1
-			break
-		    }
-		}
-		break
-	    }
-	    if { [gets $file_b line_b] == $eof } {
-		set end_2 1
-		break
-	    }
-	}
-
-        if { $diff_pass } {
-            break
-        } elseif { $end_1 && $end_2 } {
-            break
-        } elseif { $end_1 } {
-            send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
-            verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
-            set differences 1
-            break
-        } elseif { $end_2 } {
-            send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
-            verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
-            set differences 1
-            break
-        } else {
-            # Substitute on the reference.
-            foreach {name value} $ref_subst {
-                regsub -- $name $line_b $value line_b
-            }
-            verbose "regexp \"^$line_b$\"\nline   \"$line_a\"" 3
-            if ![regexp "^$line_b$" "$line_a"] {
-		send_log "regexp_diff match failure\n"
-		send_log "regexp \"^$line_b$\"\nline   \"$line_a\"\n"
-		verbose "regexp_diff match failure\n" 3
-		set differences 1
-            }
-        }
-    }
-
-    if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
-	send_log "$file_1 and $file_2 are different lengths\n"
-	verbose "$file_1 and $file_2 are different lengths" 3
-	set differences 1
-    }
-
-    close $file_a
-    close $file_b
-
-    return $differences
-}
-
 proc file_contents { filename } {
     set file [open $filename r]
     set contents [read $file]
@@ -1008,7 +894,7 @@ proc run_list_test { name {opts {}} {testname {}} } {
     }
     set file $srcdir/$subdir/$name
     gas_run ${name}.s $opts ">&dump.out"
-    if { [regexp_diff "dump.out" "${file}.l" ""] } then {
+    if { [regexp_diff "dump.out" "${file}.l"] } then {
 	fail $testname
 	verbose "output is [file_contents "dump.out"]" 2
 	return
@@ -1027,7 +913,7 @@ proc run_list_test_stdin { name {opts {}} {testname {}} } {
     }
     set file $srcdir/$subdir/$name
     gas_run_stdin ${name}.s $opts ">&dump.out"
-    if { [regexp_diff "dump.out" "${file}.l" ""] } then {
+    if { [regexp_diff "dump.out" "${file}.l"] } then {
 	fail $testname
 	verbose "output is [file_contents "dump.out"]" 2
 	return
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 30d1a1a..d1fc0c4 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* lib/ld-lib.exp (regexp_diff, simple_diff): Delete.
+
+2010-11-20  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* lib/ld-lib.exp (load_common_lib): New function.  Load
 	binutils-common.exp.
 	(is_elf_format, is_elf64, is_aout_format, is_pecoff_format): Delete.
diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp
index c1e141a..48e9635 100644
--- a/ld/testsuite/lib/ld-lib.exp
+++ b/ld/testsuite/lib/ld-lib.exp
@@ -408,75 +408,6 @@ proc ld_simple_link_defsyms {} {
     return $flags
 }
 
-# Compares two files line-by-line.
-#   Returns differences if exist.
-#   Returns null if file(s) cannot be opened.
-#
-proc simple_diff { file_1 file_2 } {
-    global target
-
-    set eof -1
-    set differences 0
-
-    if [file exists $file_1] then {
-	set file_a [open $file_1 r]
-    } else {
-	warning "$file_1 doesn't exist"
-	return
-    }
-
-    if [file exists $file_2] then {
-	set file_b [open $file_2 r]
-    } else {
-	fail "$file_2 doesn't exist"
-	return
-    }
-
-    verbose "# Diff'ing: $file_1 $file_2\n" 2
-
-    while { [gets $file_a line] != $eof } {
-	if [regexp "^#.*$" $line] then {
-	    continue
-	} else {
-	    lappend list_a $line
-	}
-    }
-    close $file_a
-
-    while { [gets $file_b line] != $eof } {
-	if [regexp "^#.*$" $line] then {
-	    continue
-	} else {
-	    lappend list_b $line
-	}
-    }
-    close $file_b
-
-    for { set i 0 } { $i < [llength $list_a] } { incr i } {
-	set line_a [lindex $list_a $i]
-	set line_b [lindex $list_b $i]
-
-	verbose "\t$file_1: $i: $line_a\n" 3
-	verbose "\t$file_2: $i: $line_b\n" 3
-	if [string compare $line_a $line_b] then {
-	    verbose -log "\t$file_1: $i: $line_a\n"
-	    verbose -log "\t$file_2: $i: $line_b\n"
-
-	    fail "Test: $target"
-	    return
-	}
-    }
-
-    if { [llength $list_a] != [llength $list_b] } {
-	fail "Test: $target"
-	return
-    }
-
-    if $differences<1 then {
-	pass "Test: $target"
-    }
-}
-
 # run_dump_test FILE
 # Copied from gas testsuite, tweaked and further extended.
 #
@@ -577,8 +508,8 @@ proc simple_diff { file_1 file_2 } {
 #
 # After the option lines come regexp lines.  `run_dump_test' calls
 # `regexp_diff' to compare the output of the dumping tool against the
-# regexps in FILE.d.  `regexp_diff' is defined later in this file; see
-# further comments there.
+# regexps in FILE.d.  `regexp_diff' is defined in binutils-common.exp;
+# see further comments there.
 #
 proc run_dump_test { name } {
     global subdir srcdir
@@ -943,123 +874,6 @@ proc slurp_options { file } {
     return $opt_array
 }
 
-# regexp_diff, copied from gas, based on simple_diff above.
-#	compares two files line-by-line
-#	file1 contains strings, file2 contains regexps and #-comments
-#	blank lines are ignored in either file
-#	returns non-zero if differences exist
-#
-proc regexp_diff { file_1 file_2 } {
-
-    set eof -1
-    set end_1 0
-    set end_2 0
-    set differences 0
-    set diff_pass 0
-    set fail_if_match 0
-
-    if [file exists $file_1] then {
-	set file_a [open $file_1 r]
-    } else {
-	warning "$file_1 doesn't exist"
-	return 1
-    }
-
-    if [file exists $file_2] then {
-	set file_b [open $file_2 r]
-    } else {
-	fail "$file_2 doesn't exist"
-	close $file_a
-	return 1
-    }
-
-    verbose " Regexp-diff'ing: $file_1 $file_2" 2
-
-    while { 1 } {
-	set line_a ""
-	set line_b ""
-	while { [string length $line_a] == 0 } {
-	    if { [gets $file_a line_a] == $eof } {
-		set end_1 1
-		break
-	    }
-	}
-	while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
-	    if [ string match "#pass" $line_b ] {
-		set end_2 1
-		set diff_pass 1
-		break
-	    } elseif [ string match "#failif" $line_b ] {
-		send_log "fail if no difference\n"
-		verbose "fail if no difference" 3
-		set fail_if_match 1
-	    } elseif [ string match "#..." $line_b ] {
-		if { [gets $file_b line_b] == $eof } {
-		    set end_2 1
-		    set diff_pass 1
-		    break
-		}
-		verbose "looking for \"^$line_b$\"" 3
-		while { ![regexp "^$line_b$" "$line_a"] } {
-		    verbose "skipping    \"$line_a\"" 3
-		    if { [gets $file_a line_a] == $eof } {
-			set end_1 1
-			break
-		    }
-		}
-		break
-	    }
-	    if { [gets $file_b line_b] == $eof } {
-		set end_2 1
-		break
-	    }
-	}
-
-        if { $diff_pass } {
-            break
-        } elseif { $end_1 && $end_2 } {
-            break
-        } elseif { $end_1 } {
-            send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
-            verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
-            set differences 1
-            break
-        } elseif { $end_2 } {
-            send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
-            verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
-            set differences 1
-            break
-        } else {
-            verbose "regexp \"^$line_b$\"\nline   \"$line_a\"" 3
-            if ![regexp "^$line_b$" "$line_a"] {
-		verbose "regexp_diff match failure\n" 3
-		send_log "regexp_diff match failure\n"
-		send_log "regexp \"^$line_b$\"\nline   \"$line_a\"\n"
-		set differences 1
-            }
-        }
-    }
-
-    if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
-	send_log "$file_1 and $file_2 are different lengths\n"
-	verbose "$file_1 and $file_2 are different lengths" 3
-	set differences 1
-    }
-
-    if { $fail_if_match } {
-	if { $differences == 0 } {
-	    set differences 1
-	} else {
-	    set differences 0
-	}
-    }
-
-    close $file_a
-    close $file_b
-
-    return $differences
-}
-
 proc file_contents { filename } {
     set file [open $filename r]
     set contents [read $file]