# Copyright 2015-2021 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

standard_testfile "vla.f90"
load_lib "fortran.exp"

if {[skip_fortran_tests]} { return -1 }

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
     {debug f90 quiet}] } {
    return -1
}

if ![fortran_runto_main] {
    untested "could not run to main"
    return -1
}

# Depending on the compiler being used,
# the type names can be printed differently.
set real [fortran_real4]

# Try to access values in non allocated VLA
gdb_breakpoint [gdb_get_line_number "vla1-init"]
gdb_continue_to_breakpoint "vla1-init"
gdb_test "print vla1" " = <not allocated>" "print non-allocated vla1"
gdb_test "print &vla1" \
  " = \\\(PTR TO -> \\\( $real, allocatable \\\(:,:,:\\\) \\\)\\\) $hex" \
  "print non-allocated &vla1"
gdb_test "print vla1(1,1,1)" "no such vector element \\\(vector not allocated\\\)" \
  "print member in non-allocated vla1 (1)"
gdb_test "print vla1(101,202,303)" \
  "no such vector element \\\(vector not allocated\\\)" \
  "print member in non-allocated vla1 (2)"
gdb_test "print vla1(5,2,18)=1" "no such vector element \\\(vector not allocated\\\)" \
  "set member in non-allocated vla1"

# Try to access value in allocated VLA
gdb_breakpoint [gdb_get_line_number "vla2-allocated"]
gdb_continue_to_breakpoint "vla2-allocated"
# Many instructions to be executed when step over this line, and it is
# slower in remote debugging.  Increase the timeout to avoid timeout
# fail.
with_timeout_factor 15 {
    gdb_test "next" "\\d+(\\t|\\s)+vla1\\\(3, 6, 9\\\) = 42" \
	"step over value assignment of vla1"
}
gdb_test "print &vla1" \
  " = \\\(PTR TO -> \\\( $real, allocatable \\\(10,10,10\\\) \\\)\\\) $hex" \
  "print allocated &vla1"
gdb_test "print vla1(3, 6, 9)" " = 1311" "print allocated vla1(3,6,9)"
gdb_test "print vla1(1, 3, 8)" " = 1311" "print allocated vla1(1,3,8)"
gdb_test "print vla1(9, 9, 9) = 999" " = 999" \
  "print allocated vla1(9,9,9)=999"

# Try to access values in allocated VLA after specific assignment
gdb_breakpoint [gdb_get_line_number "vla1-filled"]
gdb_continue_to_breakpoint "vla1-filled"
gdb_test "print vla1(3, 6, 9)" " = 42" \
  "print allocated vla1(3,6,9) after specific assignment (filled)"
gdb_test "print vla1(1, 3, 8)" " = 1001" \
  "print allocated vla1(1,3,8) after specific assignment (filled)"
gdb_test "print vla1(9, 9, 9)" " = 999" \
  "print allocated vla1(9,9,9) after assignment in debugger (filled)"

# Try to access values in undefined pointer to VLA (dangling)
gdb_test "print pvla" " = <not associated>" "print undefined pvla"
gdb_test "print &pvla" \
  " = \\\(PTR TO -> \\\( $real \\\(:,:,:\\\) \\\)\\\) $hex" \
  "print non-associated &pvla"
gdb_test "print pvla(1, 3, 8)" "no such vector element \\\(vector not associated\\\)" \
  "print undefined pvla(1,3,8)"

# Try to access values in pointer to VLA and compare them
gdb_breakpoint [gdb_get_line_number "pvla-associated"]
gdb_continue_to_breakpoint "pvla-associated"
gdb_test "print &pvla" \
  " = \\\(PTR TO -> \\\( $real \\\(10,10,10\\\) \\\)\\\) $hex" \
  "print associated &pvla"
gdb_test "print pvla(3, 6, 9)" " = 42" "print associated pvla(3,6,9)"
gdb_test "print pvla(1, 3, 8)" " = 1001" "print associated pvla(1,3,8)"
gdb_test "print pvla(9, 9, 9)" " = 999" "print associated pvla(9,9,9)"

# Fill values to VLA using pointer and check
gdb_breakpoint [gdb_get_line_number "pvla-re-associated"]
gdb_continue_to_breakpoint "pvla-re-associated"
gdb_test "print pvla(5, 45, 20)" \
  " = 1" "print pvla(5, 45, 20) after filled using pointer"
gdb_test "print vla2(5, 45, 20)" \
  " = 1" "print vla2(5, 45, 20) after filled using pointer"
gdb_test "print pvla(7, 45, 14)" " = 2" \
  "print pvla(7, 45, 14) after filled using pointer"
gdb_test "print vla2(7, 45, 14)" " = 2" \
  "print vla2(7, 45, 14) after filled using pointer"

# Try to access values of deassociated VLA pointer
gdb_breakpoint [gdb_get_line_number "pvla-deassociated"]
gdb_continue_to_breakpoint "pvla-deassociated"
gdb_test "print pvla(5, 45, 20)" \
  "no such vector element \\\(vector not associated\\\)" \
  "print pvla(5, 45, 20) after deassociated"
gdb_test "print pvla(7, 45, 14)" \
  "no such vector element \\\(vector not associated\\\)" \
  "print pvla(7, 45, 14) after dissasociated"
gdb_test "print pvla" " = <not associated>" \
  "print vla1 after deassociated"

# Try to access values of deallocated VLA
gdb_breakpoint [gdb_get_line_number "vla1-deallocated"]
gdb_continue_to_breakpoint "vla1-deallocated"
gdb_test "print vla1(3, 6, 9)" "no such vector element \\\(vector not allocated\\\)" \
  "print allocated vla1(3,6,9) after specific assignment (deallocated)"
gdb_test "print vla1(1, 3, 8)" "no such vector element \\\(vector not allocated\\\)" \
  "print allocated vla1(1,3,8) after specific assignment (deallocated)"
gdb_test "print vla1(9, 9, 9)" "no such vector element \\\(vector not allocated\\\)" \
  "print allocated vla1(9,9,9) after assignment in debugger (deallocated)"


# Try to assign VLA to user variable
clean_restart ${testfile}

if ![fortran_runto_main] then {
    perror "couldn't run to main"
    continue
}
gdb_breakpoint [gdb_get_line_number "vla2-allocated"]
gdb_continue_to_breakpoint "vla2-allocated, second time"
# Many instructions to be executed when step over this line, and it is
# slower in remote debugging.  Increase the timeout to avoid timeout
# fail.
with_timeout_factor 15 {
    gdb_test "next" "\\d+.*vla1\\(3, 6, 9\\) = 42" "next (1)"
}

gdb_test_no_output "set \$myvar = vla1" "set \$myvar = vla1"
gdb_test "print \$myvar" \
  " = \\( *\\( *\\( *1311, *1311, *1311,\[()1311, .\]*\\)" \
  "print \$myvar set to vla1"

gdb_test "next" "\\d+.*vla1\\(1, 3, 8\\) = 1001" "next (2)"
gdb_test "print \$myvar(3,6,9)" " = 1311"

gdb_breakpoint [gdb_get_line_number "pvla-associated"]
gdb_continue_to_breakpoint "pvla-associated, second time"
gdb_test_no_output "set \$mypvar = pvla" "set \$mypvar = pvla"
gdb_test "print \$mypvar(1,3,8)" " = 1001"

# deallocate pointer and make sure user defined variable still has the
# right value.
gdb_breakpoint [gdb_get_line_number "pvla-deassociated"]
gdb_continue_to_breakpoint "pvla-deassociated, second time"
gdb_test "print \$mypvar(1,3,8)" " = 1001" \
  "print \$mypvar(1,3,8) after deallocated"

gdb_breakpoint [gdb_get_line_number "vla1-neg-bounds-v1"]
gdb_continue_to_breakpoint "vla1-neg-bounds-v1"
with_test_prefix "negative bounds" {
    gdb_test "print vla1(-2,-5,-3)" " = 1"
    gdb_test "print vla1(-2,-3,-1)" " = -231"
    gdb_test "print vla1(-3,-5,-3)" "no such vector element"
    gdb_test "print vla1(-2,-6,-3)" "no such vector element"
    gdb_test "print vla1(-2,-5,-4)" "no such vector element"
    gdb_test "print vla1(0,-2,-1)" "no such vector element"
    gdb_test "print vla1(-1,-1,-1)" "no such vector element"
    gdb_test "print vla1(-1,-2,0)" "no such vector element"
}

gdb_breakpoint [gdb_get_line_number "vla1-neg-bounds-v2"]
gdb_continue_to_breakpoint "vla1-neg-bounds-v2"
with_test_prefix "negative lower bounds, positive upper bounds" {
    gdb_test "print vla1(-2,-5,-3)" " = 2"
    gdb_test "print vla1(-2,-3,-1)" " = 2"
    gdb_test "print vla1(-2,-4,-2)" " = -242"
    gdb_test "print vla1(-3,-5,-3)" "no such vector element"
    gdb_test "print vla1(-2,-6,-3)" "no such vector element"
    gdb_test "print vla1(-2,-5,-4)" "no such vector element"
    gdb_test "print vla1(2,2,1)" "no such vector element"
    gdb_test "print vla1(1,3,1)" "no such vector element"
    gdb_test "print vla1(1,2,2)" "no such vector element"
}