[PATCH] PR fortran/84784 - ICEs: verify_gimple failed with -fdefault-integer-8

[Harald Anlauf <anlauf@gmx.de>]

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Dear Fortranners,

the use of -fdefault-integer-8 exhibits several cases where
we missed to convert the result of an intrinsic from the
declared to the effective resulting type.

The attached obvious patch fixes this for IMAGE_STATUS,
TEAM_NUMBER, and POPCNT/POPPAR.

OK for mainline if regtesting passes on x86_64-pc-linux-gnu?

Thanks,
Harald


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From af5cb1f0ec1cacb47acc8c2b0c0629cf3808e1af Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Wed, 26 Jan 2022 21:50:41 +0100
Subject: [PATCH] Fortran: add missing conversions for result of intrinsics to
 result type

gcc/fortran/ChangeLog:

	PR fortran/84784
	* trans-intrinsic.cc (conv_intrinsic_image_status): Convert result
	to resulting (default) integer type.
	(conv_intrinsic_team_number): Likewise.
	(gfc_conv_intrinsic_popcnt_poppar): Likewise.

gcc/testsuite/ChangeLog:

	PR fortran/84784
	* gfortran.dg/pr84784.f90: New test.
---
 gcc/fortran/trans-intrinsic.cc        | 13 +++++++------
 gcc/testsuite/gfortran.dg/pr84784.f90 | 22 ++++++++++++++++++++++
 2 files changed, 29 insertions(+), 6 deletions(-)
 create mode 100644 gcc/testsuite/gfortran.dg/pr84784.f90

diff --git a/gcc/fortran/trans-intrinsic.cc b/gcc/fortran/trans-intrinsic.cc
index fccf0a9b229..da854fad89d 100644
--- a/gcc/fortran/trans-intrinsic.cc
+++ b/gcc/fortran/trans-intrinsic.cc
@@ -2620,7 +2620,7 @@ conv_intrinsic_image_status (gfc_se *se, gfc_expr *expr)
   else
     gcc_unreachable ();

-  se->expr = tmp;
+  se->expr = fold_convert (gfc_get_int_type (gfc_default_integer_kind), tmp);
 }

 static void
@@ -2662,7 +2662,7 @@ conv_intrinsic_team_number (gfc_se *se, gfc_expr *expr)
   else
     gcc_unreachable ();

-  se->expr = tmp;
+  se->expr = fold_convert (gfc_get_int_type (gfc_default_integer_kind), tmp);
 }


@@ -7255,12 +7255,13 @@ gfc_conv_intrinsic_popcnt_poppar (gfc_se * se, gfc_expr *expr, int parity)

       /* Combine the results.  */
       if (parity)
-	se->expr = fold_build2_loc (input_location, BIT_XOR_EXPR, result_type,
-				    call1, call2);
+	se->expr = fold_build2_loc (input_location, BIT_XOR_EXPR,
+				    integer_type_node, call1, call2);
       else
-	se->expr = fold_build2_loc (input_location, PLUS_EXPR, result_type,
-				    call1, call2);
+	se->expr = fold_build2_loc (input_location, PLUS_EXPR,
+				    integer_type_node, call1, call2);

+      se->expr = convert (result_type, se->expr);
       return;
     }

diff --git a/gcc/testsuite/gfortran.dg/pr84784.f90 b/gcc/testsuite/gfortran.dg/pr84784.f90
new file mode 100644
index 00000000000..48dd4dd4b0a
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr84784.f90
@@ -0,0 +1,22 @@
+! { dg-do compile }
+! { dg-options "-fcoarray=lib -fdefault-integer-8" }
+! { dg-require-effective-target fortran_integer_16 }
+! PR fortran/84784 - ICEs: verify_gimple failed with -fdefault-integer-8
+
+  use iso_fortran_env, only : team_type, STAT_FAILED_IMAGE
+  implicit none
+  type(team_type) :: team
+  integer         :: new_team
+  new_team = mod(this_image(),2)+1
+  form team (new_team,team)
+    change team (team)
+    if (team_number() /= new_team) STOP 1
+  end team
+  if (image_status (1) == STAT_FAILED_IMAGE) ERROR STOP "cannot recover"
+  if (runtime_popcnt(0_16) /= 0) STOP 2
+contains
+  integer function runtime_popcnt (i)
+    integer(kind=16), intent(in) :: i
+    runtime_popcnt = popcnt(i)
+  end function
+end
--
2.31.1