This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
Testcase for optimizer bug i686-pc-linux-gnulibc1
- To: "egcs-bugs at cygnus dot com" <egcs-bugs at cygnus dot com>
- Subject: Testcase for optimizer bug i686-pc-linux-gnulibc1
- From: "Karl Günter Wünsch" <Karl dot Guenter dot Wuensch at neuss dot netsurf dot de>
- Date: Tue, 28 Apr 1998 11:30:35 +0200
Hello again,
I have created a minimalistic source piece that compiles and shows the
error I reported yesterday in the optimizer of egcs-980425, (it has been
there before, but I can not tell when it appeared, but I checked it
against egcs-980321 and it is there too).Maybe this helps.
What happens is that compiled with gcc versions 2.7.3 or 2.8.1 I can use
optimization on this short piece of code and it works as expected. With
egcs I can not use
optimization (without -O the generated code seems to be ok). With -O the
++m part of the call seems to be evaluated incorrectly because whatever
happens the result is one too high.
regards
Karl Günter Wünsch
tt.c