[flang-commits] [flang] [Flang] Allow reference of a function that returns a procedure pointer to be an actual argument corresponding to a procedure pointer dummy. (PR #82824)

[Daniel Chen via flang-commits]

https://github.com/DanielCChen created https://github.com/llvm/llvm-project/pull/82824

This PR is to fix Issue #82005. The result of referencing a function that returns a procedure pointer is a procedure pointer, so it shouldn't require the dummy procedure pointer to have the INTENT(IN) attribute.

>From fadfd4927fff718b34870945ba7823656f2ed1f3 Mon Sep 17 00:00:00 2001
From: cdchen-ca <cdchen at ca.ibm.com>
Date: Fri, 23 Feb 2024 15:12:57 -0500
Subject: [PATCH] [Flang] Allow reference of a function that returns a
 procedure pointer to be an actual argument corresponding to a procedure
 pointer dummy.

---
 flang/test/Semantics/call09.f90 | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/flang/test/Semantics/call09.f90 b/flang/test/Semantics/call09.f90
index b8583ba4a49074..2abea42286ca70 100644
--- a/flang/test/Semantics/call09.f90
+++ b/flang/test/Semantics/call09.f90
@@ -87,8 +87,7 @@ subroutine test1 ! 15.5.2.9(5)
     call s02(p) ! ok
     !ERROR: Actual procedure argument has interface incompatible with dummy argument 'p=': function results have distinct types: REAL(4) vs INTEGER(4)
     call s02(ip)
-    !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a pointer unless INTENT(IN)
-    call s02(procptr())
+    call s02(procptr()) ! ok
     call s02(null()) ! ok
     !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a pointer unless INTENT(IN)
     call s05(null())
@@ -99,8 +98,7 @@ subroutine test1 ! 15.5.2.9(5)
     call s02b(p) ! ok
     !ERROR: Actual argument function associated with procedure dummy argument 'p=' is not compatible: function results have distinct types: REAL(4) vs INTEGER(4)
     call s02b(ip)
-    !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a pointer unless INTENT(IN)
-    call s02b(procptr())
+    call s02b(procptr()) ! ok
     call s02b(null())
     !ERROR: Actual argument associated with procedure pointer dummy argument 'p=' must be a pointer unless INTENT(IN)
     call s02b(sin)