Is this a While - Do bug?
lazarus / 8-Other

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anthony · 2008-02-27 10:13

Hello,

Compiling the program below produces a compile error.
Code: [Select]
Program bug;

Procedure Dummy;
Begin
End;

Begin
   While True Do Dummy;
End.

This is my minimal program generating the compile error.
I compiled this direct into fpc 2.2.0 under Linux MDV 2008.0.
The generated error is : Asm: [push imm8] invalid combination of
opcode and operands.
Also tested in Delphi : OK

Is this a bug?  Thanks.

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Leledumbo · 2008-02-28 04:04

I think so, perhaps in the code generator for your Linux, because it
compiles on Windows.

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Marc · 2008-02-28 09:53

works here on linux too.

Have you some changed options in your fpc.cfg ? This looks like an
external assembler issue, however I expect a the internal assembelr to
be used by default.

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anthony · 2008-02-29 12:34

Dear Marc,

Your remark brought me much further.
I used the command-line compiler to generate the assembler source for
further investigation.
The command line compiler did not gave me the compiler error I
received in the IDE.

In the IDE was Options |  Compiler |  Code generation | Level 1
optimalizations enabled.
After disabling the optimalizations the compiler errors were gone.

You think this is a bug to report?

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Marc · 2008-03-04 10:32

I think so