From: Harald Anlauf <anlauf@gmx.de>
Date: Tue, 28 Jan 2025 20:21:40 +0000 (+0100)
Subject: Fortran: fix passing of component ref to assumed-rank dummy [PR118683]
X-Git-Tag: basepoints/gcc-16~2291
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5d001fa122bf04cfd0611ff7723969a0421b3094;p=thirdparty%2Fgcc.git

Fortran: fix passing of component ref to assumed-rank dummy [PR118683]

While the fix for pr117774 addressed the passing of an inquiry reference
to an assumed-rank dummy, it missed the similar case of passing a component
reference.  The newer testcase gfortran.dg/pr81978.f90 uncovered this
latent issue with a UBSAN instrumented compiler.

	PR fortran/118683

gcc/fortran/ChangeLog:

	* trans-expr.cc (gfc_conv_procedure_call): The bounds update for
	passing to assumed-rank dummies shall also handle component
	references besides inquiry references.
---

diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc
index 78caf1f8996..24b1d19537b 100644
--- a/gcc/fortran/trans-expr.cc
+++ b/gcc/fortran/trans-expr.cc
@@ -7495,6 +7495,9 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sym,
 		    {
 		      if (ref->next->type == REF_INQUIRY)
 			break;
+		      if (ref->type == REF_ARRAY
+			  && ref->u.ar.type != AR_ELEMENT)
+			break;
 		    };
 		  if (ref->u.ar.type == AR_FULL
 		      && ref->u.ar.as->type != AS_ASSUMED_SIZE)