From: Harald Anlauf <anlauf@gmx.de>
Date: Tue, 10 Jan 2023 21:41:17 +0000 (+0100)
Subject: Fortran: frontend passes do_subscript leaks gmp memory [PR97345]
X-Git-Tag: upstream/13.1.0~2149
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fec9fc1a17ec44461cee841513f1b6b8ad680fe4;p=platform%2Fupstream%2Fgcc.git

Fortran: frontend passes do_subscript leaks gmp memory [PR97345]

gcc/fortran/ChangeLog:

	PR fortran/97345
	* frontend-passes.cc (do_subscript): Clear used gmp variables.
---

diff --git a/gcc/fortran/frontend-passes.cc b/gcc/fortran/frontend-passes.cc
index 612c12d..db2b982 100644
--- a/gcc/fortran/frontend-passes.cc
+++ b/gcc/fortran/frontend-passes.cc
@@ -2892,7 +2892,12 @@ do_subscript (gfc_expr **e)
 
 		  cmp = mpz_cmp (do_end, do_start);
 		  if ((sgn > 0 && cmp < 0) || (sgn < 0 && cmp > 0))
-		    break;
+		    {
+		      mpz_clear (do_start);
+		      mpz_clear (do_end);
+		      mpz_clear (do_step);
+		      break;
+		    }
 		}
 
 	      /* May have to correct the end value if the step does not equal
@@ -2965,6 +2970,12 @@ do_subscript (gfc_expr **e)
 		      mpz_clear (val);
 		    }
 		}
+
+	      if (have_do_start)
+		mpz_clear (do_start);
+	      if (have_do_end)
+		mpz_clear (do_end);
+	      mpz_clear (do_step);
 	    }
 	}
     }