Project

General

Profile

Actions
Copy link

Bug #41

closed

fixing a register allocation problem in the compiler

Added by J. Templ over 10 years ago. Updated over 10 years ago.

Status:
Closed
Priority:
Normal
Assignee:
J. Templ
Target version:
1.7
Start date:
04/23/2015
Due date:
% Done:

0%

Estimated time:
Forum topic:

Description

The following procedure produces a trap in the compiler.

PROCEDURE P(IN in : ARRAY 10 OF SHORTCHAR; OUT out : ARRAY 10 OF SHORTCHAR);
BEGIN
  out[Index()] := SHORT(CHR(1 + ORD(in[0])));
END P;

The reason is that the right hand side expression is evaluated into a register
that cannot be used for a comparison operation, which is necessary for SHORTCHAR conversion.
A proposal to fix the bug exists in CPC 1.7 rc5 by changing
the register selection order.

Reported/fix proposed by oberoncore, Maliya by dia, 2013-05-19.
See http://forum.oberoncore.ru/viewtopic.php?f=47&t=4087&p=80212#p80205
http://oberspace.dyndns.org/index.php?topic=500.0;topicseen

Refers to CPC 1.7 rc5 change list number 17.

Actions
Copy link
 #1

Updated by J. Templ over 10 years ago

  • Status changed from New to Closed
Actions
Copy link

Also available in: Atom PDF