https://gcc.gnu.org/g:d211100903d4d532d989451243ea00d7fa2e9d5e
commit r15-2017-gd211100903d4d532d989451243ea00d7fa2e9d5e
Author: Mikael Morin <mik...@gcc.gnu.org>
Date: Sat Jul 13 20:21:20 2024 +0200
fortran: Correctly evaluate scalar MASK arguments of MINLOC/MAXLOC
Add the preliminary code that the generated expression for MASK may depend
on when generating the inline code to evaluate MINLOC or MAXLOC with a
scalar MASK.
The generated code was only keeping the generated expression but not the
preliminary code, which was sufficient for simple cases such as data
references or simple (scalar) function calls, but was bogus with more
complicated ones.
gcc/fortran/ChangeLog:
* trans-intrinsic.cc (gfc_conv_intrinsic_minmaxloc): Add the
preliminary code generated for MASK to the preliminary code of
MINLOC/MAXLOC.
gcc/testsuite/ChangeLog:
* gfortran.dg/minmaxloc_17.f90: New test.
Diff:
---
gcc/fortran/trans-intrinsic.cc | 1 +
gcc/testsuite/gfortran.dg/minmaxloc_17.f90 | 33 ++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/gcc/fortran/trans-intrinsic.cc b/gcc/fortran/trans-intrinsic.cc
index cadbd1774520..180d0d7a88c6 100644
--- a/gcc/fortran/trans-intrinsic.cc
+++ b/gcc/fortran/trans-intrinsic.cc
@@ -5749,6 +5749,7 @@ gfc_conv_intrinsic_minmaxloc (gfc_se * se, gfc_expr *
expr, enum tree_code op)
gfc_init_se (&maskse, NULL);
gfc_conv_expr_val (&maskse, maskexpr);
+ gfc_add_block_to_block (&se->pre, &maskse.pre);
gfc_init_block (&block);
gfc_add_block_to_block (&block, &loop.pre);
gfc_add_block_to_block (&block, &loop.post);
diff --git a/gcc/testsuite/gfortran.dg/minmaxloc_17.f90
b/gcc/testsuite/gfortran.dg/minmaxloc_17.f90
new file mode 100644
index 000000000000..7e6e586ab03f
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/minmaxloc_17.f90
@@ -0,0 +1,33 @@
+! { dg-do run }
+!
+! Check that the code necessary to evaluate MINLOC's or MAXLOC's MASK
+! argument is correctly generated.
+
+program p
+ implicit none
+ integer, parameter :: data10(*) = (/ 2, 5, 2, 0, 6, 5, 3, 6, 0, 1 /)
+ logical, parameter :: mask10(*) = (/ .false., .true., .false., &
+ .false., .true., .true., &
+ .true. , .true., .false., &
+ .false. /)
+ type bool_wrapper
+ logical :: l
+ end type
+ call check_minloc
+ call check_maxloc
+contains
+ subroutine check_minloc
+ integer :: a(10)
+ integer :: r
+ a = data10
+ r = minloc(a, dim = 1, mask = sum(a) > 0)
+ if (r /= 4) stop 11
+ end subroutine
+ subroutine check_maxloc
+ integer :: a(10)
+ integer :: r
+ a = data10
+ r = maxloc(a, dim = 1, mask = sum(a) > 0)
+ if (r /= 5) stop 18
+ end subroutine
+end program
