Subject: re: EGCS on mips stable?
To: Castor Fu <email@example.com>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
Date: 10/25/1998 23:55:58
>I'm confused. You're not seeing same problem if you're getting
>assembly output. I die with internal compiler errors like the following:
ah. I'm using a `stage1' egcs: egcs compiled by gcc 220.127.116.11+myc1.
that works fine on the code-frag you gave me. I havent tried a stage2
egcs (egcs compiled with egcs) yet.
>My binutils 2.8.1 cross environment has no problems synthesizing the
>instruction sequence. The sequence looks something like
So does mine, after all. False alarm there. Please ignore.
I'm using -O2. does that make a difference? if not: I'd guess the egcs
1.1 you're using now is buggy due to a bug in the egcs 1.0.2 you used
to compile the cross-compiler with. my egcs 1.0.2 (same source
version as yours) works fine.
Do you have a gcc18.104.22.168 for the compile host? Compiling your egcs
cross-compiler (i.e., targeted at netbsd/mipsel) with 22.214.171.124 should
work better on this specific test-case. at least, mine does.
It would be interesting to keep both egcs cc1 binaries around and
compare the output of cc1 -da from the two, and see where the RTL is
getting hosed. (recompiling egcs 1.1. again with both compilers and
and comparing would also be informative).
>As I said earlier, since you're getting assembly code, it looks like
>there's some difference between the cross compilation and native
I'd investigate the results made by different bootstrap compilers