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Article #1099

hppa1.1 switch problem

#1099
From: Marv Graham
Date: Wed, 09 Sep 1992 13:56
49 lines
1383 bytes
/*<< hpux gcc 2.2.2 for hp710 (hppa1.1) gets wrong answers on the following code

The output should be:
4: a = 1028

but I get:

5: a = 1028
5: a = 1028

There is no problem unless -DOMIT is used on the command line
i.e: three cases work, more than three cases fails.

When it fails, it always uses the last case for all values of "a",
even when "a" is not one of the labels (e.g. 1 as below).
<<*/

sw(int a)
{
	switch (a) {
#ifdef OMIT
	case 0x402:
		printf("2: a = %d\n", a);
		break;
#endif  /* OMIT */
	case 0x403:
		printf("3: a = %d\n", a);
		break;
	case 0x404:
		printf("4: a = %d\n", a);
		break;
	case 0x405:
		printf("5: a = %d\n", a);
		break;
	}
}

main(void)
{
	sw(0x404);
	sw(1);
}

There are no problems with either the convex or the i386 versions of gcc-2.2.2
with this program - OMIT or not.


Marv Graham; Convex Computer Corp.  {uunet,sun,uiucdcs,allegra}!convex!graham
					graham@bach.convex.com
Technical Details
Message-ID: <1992Sep9.135633.27512@news.eng.convex.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!convex.com!graham

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Newsgroups: gnu.gcc.bug
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!convex.com!graham
From: graham@convex.com (Marv Graham)
Subject: hppa1.1 switch problem
Message-ID: <1992Sep9.135633.27512@news.eng.convex.com>
Sender: gnulists@ai.mit.edu
Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
Distribution: gnu
Date: Wed, 9 Sep 1992 13:56:33 GMT
Approved: bug-gcc@prep.ai.mit.edu
Lines: 50