gdb/fortran: Change whitespace when printing arrays

This commit makes the whitespace usage when printing Fortran arrays
more consistent, and more inline with how we print C arrays.

Currently a 2 dimensional Fotran array is printed like this, I find
the marked whitespace unpleasant:

  (( 1, 2, 3) ( 4, 5, 6) )
    ^          ^        ^

After this commit the same array is printed like this:

  ((1, 2, 3) (4, 5, 6))

Which seems more inline with how we print C arrays, in the case of C
arrays we don't add extra whitespace before the first element.

gdb/ChangeLog:

	* f-valprint.c (f77_print_array_1): Adjust printing of whitespace
	for arrays.

gdb/testsuite/ChangeLog:

	* gdb.fortran/array-slices.exp: Update expected results.
	* gdb.fortran/class-allocatable-array.exp: Likewise.
	* gdb.fortran/multi-dim.exp: Likewise.
	* gdb.fortran/vla-type.exp: Likewise.
	* gdb.mi/mi-vla-fortran.exp: Likewise.

6 files changed, 22 insertions, 14 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index b7c1ce8..695416c 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+2020-09-19  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* gdb.fortran/array-slices.exp: Update expected results.
+	* gdb.fortran/class-allocatable-array.exp: Likewise.
+	* gdb.fortran/multi-dim.exp: Likewise.
+	* gdb.fortran/vla-type.exp: Likewise.
+	* gdb.mi/mi-vla-fortran.exp: Likewise.
+
 2020-09-18  Victor Collod  <vcollod@nvidia.com>
 
 	PR gdb/26635
diff --git a/gdb/testsuite/gdb.fortran/array-slices.exp b/gdb/testsuite/gdb.fortran/array-slices.exp
index b1c7209..31f95a3 100644
--- a/gdb/testsuite/gdb.fortran/array-slices.exp
+++ b/gdb/testsuite/gdb.fortran/array-slices.exp
@@ -38,14 +38,14 @@ gdb_breakpoint [gdb_get_line_number "Final Breakpoint"]
 
 set array_contents \
     [list \
-	 " = \\(\\( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10\\) \\( 11, 12, 13, 14, 15, 16, 17, 18, 19, 20\\) \\( 21, 22, 23, 24, 25, 26, 27, 28, 29, 30\\) \\( 31, 32, 33, 34, 35, 36, 37, 38, 39, 40\\) \\( 41, 42, 43, 44, 45, 46, 47, 48, 49, 50\\) \\( 51, 52, 53, 54, 55, 56, 57, 58, 59, 60\\) \\( 61, 62, 63, 64, 65, 66, 67, 68, 69, 70\\) \\( 71, 72, 73, 74, 75, 76, 77, 78, 79, 80\\) \\( 81, 82, 83, 84, 85, 86, 87, 88, 89, 90\\) \\( 91, 92, 93, 94, 95, 96, 97, 98, 99, 100\\) \\)" \
-	 " = \\(\\( 1, 2, 3, 4, 5\\) \\( 11, 12, 13, 14, 15\\) \\( 21, 22, 23, 24, 25\\) \\( 31, 32, 33, 34, 35\\) \\( 41, 42, 43, 44, 45\\) \\)" \
-	 " = \\(\\( 1, 3, 5, 7, 9\\) \\( 21, 23, 25, 27, 29\\) \\( 41, 43, 45, 47, 49\\) \\( 61, 63, 65, 67, 69\\) \\( 81, 83, 85, 87, 89\\) \\)" \
-	 " = \\(\\( 1, 4, 7, 10\\) \\( 21, 24, 27, 30\\) \\( 41, 44, 47, 50\\) \\( 61, 64, 67, 70\\) \\( 81, 84, 87, 90\\) \\)" \
-	 " = \\(\\( 1, 5, 9\\) \\( 31, 35, 39\\) \\( 61, 65, 69\\) \\( 91, 95, 99\\) \\)" \
-	 " = \\(\\( -26, -25, -24, -23, -22, -21, -20, -19, -18, -17\\) \\( -19, -18, -17, -16, -15, -14, -13, -12, -11, -10\\) \\( -12, -11, -10, -9, -8, -7, -6, -5, -4, -3\\) \\( -5, -4, -3, -2, -1, 0, 1, 2, 3, 4\\) \\( 2, 3, 4, 5, 6, 7, 8, 9, 10, 11\\) \\( 9, 10, 11, 12, 13, 14, 15, 16, 17, 18\\) \\( 16, 17, 18, 19, 20, 21, 22, 23, 24, 25\\) \\( 23, 24, 25, 26, 27, 28, 29, 30, 31, 32\\) \\( 30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\) \\( 37, 38, 39, 40, 41, 42, 43, 44, 45, 46\\) \\)" \
-	 " = \\(\\( -26, -25, -24, -23, -22, -21\\) \\( -19, -18, -17, -16, -15, -14\\) \\( -12, -11, -10, -9, -8, -7\\) \\)" \
-	 " = \\(\\( -26, -24, -22, -20, -18\\) \\( -5, -3, -1, 1, 3\\) \\( 16, 18, 20, 22, 24\\) \\( 37, 39, 41, 43, 45\\) \\)" ]
+	 " = \\(\\(1, 2, 3, 4, 5, 6, 7, 8, 9, 10\\) \\(11, 12, 13, 14, 15, 16, 17, 18, 19, 20\\) \\(21, 22, 23, 24, 25, 26, 27, 28, 29, 30\\) \\(31, 32, 33, 34, 35, 36, 37, 38, 39, 40\\) \\(41, 42, 43, 44, 45, 46, 47, 48, 49, 50\\) \\(51, 52, 53, 54, 55, 56, 57, 58, 59, 60\\) \\(61, 62, 63, 64, 65, 66, 67, 68, 69, 70\\) \\(71, 72, 73, 74, 75, 76, 77, 78, 79, 80\\) \\(81, 82, 83, 84, 85, 86, 87, 88, 89, 90\\) \\(91, 92, 93, 94, 95, 96, 97, 98, 99, 100\\)\\)" \
+	 " = \\(\\(1, 2, 3, 4, 5\\) \\(11, 12, 13, 14, 15\\) \\(21, 22, 23, 24, 25\\) \\(31, 32, 33, 34, 35\\) \\(41, 42, 43, 44, 45\\)\\)" \
+	 " = \\(\\(1, 3, 5, 7, 9\\) \\(21, 23, 25, 27, 29\\) \\(41, 43, 45, 47, 49\\) \\(61, 63, 65, 67, 69\\) \\(81, 83, 85, 87, 89\\)\\)" \
+	 " = \\(\\(1, 4, 7, 10\\) \\(21, 24, 27, 30\\) \\(41, 44, 47, 50\\) \\(61, 64, 67, 70\\) \\(81, 84, 87, 90\\)\\)" \
+	 " = \\(\\(1, 5, 9\\) \\(31, 35, 39\\) \\(61, 65, 69\\) \\(91, 95, 99\\)\\)" \
+	 " = \\(\\(-26, -25, -24, -23, -22, -21, -20, -19, -18, -17\\) \\(-19, -18, -17, -16, -15, -14, -13, -12, -11, -10\\) \\(-12, -11, -10, -9, -8, -7, -6, -5, -4, -3\\) \\(-5, -4, -3, -2, -1, 0, 1, 2, 3, 4\\) \\(2, 3, 4, 5, 6, 7, 8, 9, 10, 11\\) \\(9, 10, 11, 12, 13, 14, 15, 16, 17, 18\\) \\(16, 17, 18, 19, 20, 21, 22, 23, 24, 25\\) \\(23, 24, 25, 26, 27, 28, 29, 30, 31, 32\\) \\(30, 31, 32, 33, 34, 35, 36, 37, 38, 39\\) \\(37, 38, 39, 40, 41, 42, 43, 44, 45, 46\\)\\)" \
+	 " = \\(\\(-26, -25, -24, -23, -22, -21\\) \\(-19, -18, -17, -16, -15, -14\\) \\(-12, -11, -10, -9, -8, -7\\)\\)" \
+	 " = \\(\\(-26, -24, -22, -20, -18\\) \\(-5, -3, -1, 1, 3\\) \\(16, 18, 20, 22, 24\\) \\(37, 39, 41, 43, 45\\)\\)" ]
 
 set message_strings \
     [list \
diff --git a/gdb/testsuite/gdb.fortran/class-allocatable-array.exp b/gdb/testsuite/gdb.fortran/class-allocatable-array.exp
index 9475ba3..cdee73f 100644
--- a/gdb/testsuite/gdb.fortran/class-allocatable-array.exp
+++ b/gdb/testsuite/gdb.fortran/class-allocatable-array.exp
@@ -40,4 +40,4 @@ gdb_continue_to_breakpoint "Break Here"
 # cetainly going to fail.
 gdb_test "print this" " = \\( _data = \[^\r\n\]+, _vptr = \[^\r\n\]+\\)"
 gdb_test "print this%_data" " = \\(PTR TO -> \\( Type test_type \\)\\) \[^\r\n\]+"
-gdb_test "print this%_data%b" " = \\(\\( 1, 2, 3\\) \\( 4, 5, 6\\) \\)"
+gdb_test "print this%_data%b" " = \\(\\(1, 2, 3\\) \\(4, 5, 6\\)\\)"
diff --git a/gdb/testsuite/gdb.fortran/multi-dim.exp b/gdb/testsuite/gdb.fortran/multi-dim.exp
index ef6c6da..8cb419a 100644
--- a/gdb/testsuite/gdb.fortran/multi-dim.exp
+++ b/gdb/testsuite/gdb.fortran/multi-dim.exp
@@ -57,7 +57,7 @@ gdb_test "print foo(3,3,4)" \
     "print an invalid array index (3,3,4)"
 
 gdb_test "print foo" \
-    { = \(\( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 10\) \) \( \( 10, 10\) \( 10, 10\) \( 10, 20\) \) \)} \
+    { = \(\(\(10, 10\) \(10, 10\) \(10, 10\)\) \(\(10, 10\) \(10, 10\) \(10, 10\)\) \(\(10, 10\) \(10, 10\) \(10, 10\)\) \(\(10, 10\) \(10, 10\) \(10, 20\)\)\)} \
     "print full contents of the array"
 
 gdb_breakpoint [gdb_get_line_number "break-variable"]
diff --git a/gdb/testsuite/gdb.fortran/vla-type.exp b/gdb/testsuite/gdb.fortran/vla-type.exp
index e2b8d71..dbf85bb 100755
--- a/gdb/testsuite/gdb.fortran/vla-type.exp
+++ b/gdb/testsuite/gdb.fortran/vla-type.exp
@@ -66,9 +66,9 @@ gdb_test "ptype twov" \
                      "\\s+$int, allocatable :: ivla1\\\(5,12,99\\\)" \
                      "\\s+$int, allocatable :: ivla2\\\(9,12\\\)" \
                      "End Type two" ]
-gdb_test "print twov" " = \\\( ivla1 = \\\(\\\( \\\( 1, 1, 1, 1, 1\\\)\
- \\\( 1, 1, 321, 1, 1\\\)\
- \\\( 1, 1, 1, 1, 1\\\) .*"
+gdb_test "print twov" " = \\\( ivla1 = \\\(\\\(\\\(1, 1, 1, 1, 1\\\)\
+ \\\(1, 1, 321, 1, 1\\\)\
+ \\\(1, 1, 1, 1, 1\\\) .*"
 
 # Check type with attribute at beginn of type
 gdb_breakpoint [gdb_get_line_number "threev-filled"]
diff --git a/gdb/testsuite/gdb.mi/mi-vla-fortran.exp b/gdb/testsuite/gdb.mi/mi-vla-fortran.exp
index 05e71e5..e862725 100644
--- a/gdb/testsuite/gdb.mi/mi-vla-fortran.exp
+++ b/gdb/testsuite/gdb.mi/mi-vla-fortran.exp
@@ -180,7 +180,7 @@ mi_run_cmd
 mi_expect_stop "breakpoint-hit" "vla" "" ".*vla.f90" "$bp_lineno" \
   { "" "disp=\"del\"" } "run to breakpoint at line $bp_lineno"
 mi_gdb_test "590-data-evaluate-expression pvla2" \
-  "590\\^done,value=\"\\(\\( 2, 2, 2, 2, 2\\) \\( 2, 2, 2, 2, 2\\) \\)\"" \
+  "590\\^done,value=\"\\(\\(2, 2, 2, 2, 2\\) \\(2, 2, 2, 2, 2\\)\\)\"" \
   "evaluate associated vla"
 
 mi_create_varobj_checked pvla2_associated pvla2 \