| Summary: | gfortran segfault when compiling FM509.f from NIST testsuite | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Jerry DeLisle <jvdelisle> |
| Component: | fortran | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | epc8, gcc-bugs, wf_cs |
| Priority: | P2 | Keywords: | ice-on-valid-code |
| Version: | 4.0.0 | ||
| Target Milestone: | 4.0.1 | ||
| Host: | i686-pc-linux-gnu | Target: | i686-pc-linux-gnu |
| Build: | i686-pc-linux-gnu | Known to work: | |
| Known to fail: | Last reconfirmed: | 2004-09-12 00:56:35 | |
| Bug Depends on: | 18600 | ||
| Bug Blocks: | 13082, 19292 | ||
This is related to bug 13082. Can you attach the fortran source if the license of the testsuite allows it? Using gdb with f951 I get the segfaults on the following programs from the NIST test suite: FM509.f trans-decl.c:1384 FM517.f trans-decl.c:1372 FM711.f trans-array.c:1619 FM903.f trans-array.c:1619 FM908.f trans-array.c:1619 FM909.f trans-array.c:1619 Test suite downloaded from: http://www.fortran-2000.com/ArnaudRecipes/fcvs21_f95.html 'modified' version used. Software is public domain, provide acknowledgement of NIST. reduced test case:
SUBROUTINE SN510(IVD021,IVD002)
RETURN
ENTRY EN858(IVD019,*,*)
END
So lets change this so we block the other bug. Latest run of NIST f77 testsuite. There appears to be 3 of the previously reported errors and 5 additional new ones. GNU Fortran 95 (GCC 4.0.0 20041108 (experimental)) Copyright (C) 2004 Free Software Foundation, Inc. FM020.f:177: internal compiler error: in gfc_add_modify_expr, at fortran/trans.c:154 FM311.f:401: internal compiler error: in gfc_add_modify_expr, at fortran/trans.c:154 FM328.f:465: internal compiler error: in gfc_add_modify_expr, at fortran/trans.c:154 FM509.f:487: internal compiler error: Segmentation fault FM517.f:335: internal compiler error: Segmentation fault FM711.f:171: internal compiler error: Segmentation fault FM903.f:195: internal compiler error: Segmentation fault FM908.f:187: internal compiler error: Segmentation fault FM909.f:228: internal compiler error: Segmentation fault Argh! Five of the old, three new. Sorry about that. ICE on NIST FM252.f reduced case similar to pr#18827
PROGRAM FM252
C
ASSIGN 0012 TO I
0012 FORMAT (" **** ASSIGN FORMAT NUMBER TO INTEGER VARIABLE ****" )
END
Some regressions showing up: FM111 and FM252 FM111.f:241: internal compiler error: in gfc_add_modify_expr, at fortran/trans.c:154 FM252.f:115: internal compiler error: in gfc_add_modify_expr, at fortran/trans.c:154 gcc version 4.0.0 20041210 (experimental) The reduced testcase in Comment #7 still ICEs. A patch to fix the problem in comment #7 has been submitted for review. Fixed. *** Bug 17142 has been marked as a duplicate of this bug. *** |
FM509.f causes segfault when attempting to compile. gdb output as follows: (gdb) set args FM509.f (gdb) run Starting program: /home/jerry/bin/f951 FM509.f MAIN__ sn510 Program received signal SIGSEGV, Segmentation fault. 0x080a0494 in gfc_create_function_decl (ns=0x87c01a0) at ../../gcc-3.5-20040905/gcc/fortran/trans-decl.c:1384 1384 if (formal->sym->ts.type == BT_CHARACTER) (gdb)