re PR fortran/92629 (internal compiler error: in convert_mpz_to_unsigned, at…

re PR fortran/92629 (internal compiler error: in convert_mpz_to_unsigned, at fortran/simplify.c:173)

2019-11-25  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/92629
	* simplify.c (convert_mpz_to_unsigned): Skip assert for argument
	range when -fno-range-check is specified.

	PR fortran/92629
	* gfortran.dg/pr92629.f90: New testcase.

From-SVN: r278699

gcc/fortran/ChangeLog

+2019-11-25  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/92629
+	* simplify.c (convert_mpz_to_unsigned): Skip assert for argument
+	range when -fno-range-check is specified.
+
 2019-11-25  Mark Eggleston  <mark.eggleston@codethink.com>
 	    Jim MacArthur  <jim.macarthur@codethink.co.uk>
 

gcc/fortran/simplify.c

@@ -169,8 +169,10 @@ convert_mpz_to_unsigned (mpz_t x, int bitsize)
     }
   else
     {
-      /* Confirm that no bits above the signed range are set.  */
-      gcc_assert (mpz_scan1 (x, bitsize-1) == ULONG_MAX);
+      /* Confirm that no bits above the signed range are set if we
+	 are doing range checking.  */
+      if (flag_range_check != 0)
+	gcc_assert (mpz_scan1 (x, bitsize-1) == ULONG_MAX);
     }
 }
 

gcc/testsuite/ChangeLog

+2019-11-25  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/92629
+	* gfortran.dg/pr92629.f90: New testcase.
+
 2019-11-25  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* g++.dg/diagnostic/base-operand-non-pointer-1.C: New.

gcc/testsuite/gfortran.dg/pr92629.f90

+! { dg-do run }
+! { dg-options "-fno-range-check" }
+!
+! Test the fix for PR92629.
+program bge_tests
+  if (bge (huge (1_1), 128_1)) stop 1
+  if (bge (    128_1 , 255_1)) stop 2
+  if (bge (huge (1_2), 32768_2)) stop 3
+  if (bge (huge (1_4), 2147483648_4)) stop 4
+  if (bge (huge (1_8), 9223372036854775808_8)) stop 5
+end program