Microsoft KB Archive/68187

= FIX: F1001: ../../../P2/grammar.c, line 91; Optimization =

Article ID: 68187

Article Last Modified on 12/1/2003

-

APPLIES TO


 * Microsoft FORTRAN Compiler 5.0
 * Microsoft FORTRAN Compiler 5.1
 * Microsoft FORTRAN Compiler 5.0
 * Microsoft FORTRAN Compiler 5.1

-



This article was previously published under Q68187



SYMPTOMS
The code causes FORTRAN, version 5.0 to produce

fatal error F1001: Internal Compiler Error

(compiler file '../../../P2/grammar.c', line 91)

With FORTRAN 5.1, the error produced during pass 2 is:

run-time Error R6000

- Stack Overflow



RESOLUTION
The examples that we have seen are relatively large modules of code. Most of the examples have large COMMON blocks, multiple CALL statements, or DO loops. Simplifying the modules can eliminate the error. Disabling optimization with /Od or using /4Yb can also eliminate the error.



STATUS
Microsoft has confirmed this to be a bug in the products listed above. This problem was corrected in FORTRAN PowerStation for MS-DOS, version 1.0 and FORTRAN PowerStation for Windows NT, version 1.0.



MORE INFORMATION
The program below will produce the F1001 error with 5.00 and the R6000 error with 5.10. Compiling with /Od or /4Yb removes the error:

Sample Code
C Compile options needed: none

dimension array(3,3)

array = 1.0 CALL invers(array) END

SUBROUTINE invers(ti) DIMENSION ti(3,3), a(3,6) DATA a /1.0,2.0,3.0, +4.0,5.0,6.0,    +7.0,8.0,9.0,     +10.0,11.0,12.0,     +13.0,14.0,15.0,     +16.0,17.0,18.0 /

WRITE (*,*) 'a=',a I = 3 DO 8 II=1,I DO 8 JJ=1,I KIL = JJ+I TI(II,JJ) = A(II,KIL) 8  CONTINUE WRITE (*,*) 'ti=',ti END

Additional query words: 5.00 5.10 buglist5.00 buglist5.10 fixlist1.00

Keywords: kbfix KB68187

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.