Re: [lno] fix division by zero

[Toon Moene <toon at moene dot indiv dot nluug dot nl>]

Dorit Naishlos wrote:

> I wrote:

> > Well, I tried, and I tried, but I can't get no ... vectorization:

> That's because the vectorizer currently doesn't support unary operations.
> It's very trivial to add this support, and I will, shortly. A lot of the
> restrictions that are imposed right now are entirely arbitrary - I posted
> the vectorizer as soon as there was an infrastructure with some minimal
> vectorization capabilities. The more trivial limitations will be the first
> ones to be removed.

Ah, OK, I was hoping that that was the problem - that the current 
implementation didn't support broadcasting scalars to arrays.

In any event, I can't test my next version:

DIMENSION A(1000000), B(1000000), C(1000000)
READ*, X, Y
A = LOG(X); B = LOG(Y); C = A + B
PRINT*, C(500000)
END

because the stage 1 compiler miscompiles gengtype ....

stage1/xgcc -Bstage1/ -B/usr/lno/powerpc-unknown-linux-gnu/bin/   -g -O2 
 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes 
-Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition 
-Werror -fno-common   -DHAVE_CONFIG_H -DGENERATOR_FILE  -o gengtype \
 gengtype.o gengtype-lex.o gengtype-yacc.o ../libiberty/libiberty.a
./gengtype
make[2]: *** [s-gtype] Segmentation fault
make[2]: Leaving directory `/home/toon/compilers/lno/obj/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/home/toon/compilers/lno/obj/gcc'
make: *** [bootstrap] Error 2

(on powerpc-unknown-linux-gnu).

I'll just have to wait until the branch stabilizes ... thanks for your 
interesting work !

--
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
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GNU Fortran 95: http://gcc.gnu.org/fortran/ (under construction)