Article View: gnu.gcc.bug
Article #466GNU C bug report
From: Phil Hochstetler
Date: Thu, 13 Jul 1989 20:16
Date: Thu, 13 Jul 1989 20:16
37 lines
1413 bytes
1413 bytes
Version of GNU CC: gcc version 1.35
Input file:
#ifdef COMMENT
When GNU C compiles the following program on the Symmetry, the resulting
executable core dumps in the printf:
According to the originator of this bug (which has since been fixed on
PCC and ATS CC) the incorrect code is generated since "the trunc instruction
connot convert a number greater than the signed maximum." (At least that's
what it happened on those two compilers.
#endif
/* 04521.c - make sure that this program doesn't bomb on the printf
* dmose 7/13/89
*/
#include <stdio.h>
main()
{
double d;
unsigned bogus = 1;
d = ((double) bogus);
printf("%e\n", d); /*works*/
fflush();
printf("%e\n", ((double) bogus)); /*core dumps in printf*/
}
Compiled via: gcc -o foo foo.c
tm.h and md file: md -> config/i386.md
tm.h -> config/tm-seq386.h
type of machine: Sequent SYMMETRY
OS name and version: DYNIX(R) V3.0.15
Bad behavior: Running compiled program gets a
floating point exception in printf.
Technical Details
Message-ID:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!DECWRL.DEC.COM!sequent!phil From: sequent!phil@DECWRL.DEC.COM (Phil Hochstetler) Newsgroups: gnu.gcc.bug Subject: GNU C bug report Message-ID: <8907132032.AA26854@decwrl.dec.com> Date: 13 Jul 89 20:16:08 GMT Sender: daemon@tut.cis.ohio-state.edu Distribution: gnu Organization: GNUs Not Usenet Lines: 37