Emmanuel Chaput wrote:
I have a problem with gpc on a sun sparc. A simple program like this crashes the compiler (with gpc1 receiving a sig 11) :
program foo; begin writeln(round(3.1)) end.
Note that round(x) works fine. A debugger told me that in function expand_fix from file optabs.c, GET_MODE (from) was used with from = 0.
I then discovered in file p/rts.c that there were differences between
how trunc and round were implemented. So I tried to change the "case p_ROUND" in that file. That is I changed
retval = fold(build1(...
into
retval = convert(long_long_integer_type_node, val);
And it seems to work !
Could someone explain this to me ? Did I make something wrong ? Or is this the good way to correct the bug ?
I think you made Round work like Trunc now!? What does `Round (2.8)' say? It should, of course, say 3, but after your patch, doesn't it say 2?
Frank
PS: Are you subscribed to the list now? I'm CCing you a copy, just in case not...
Frank