I have an odd case (bug ?)
But I am unable to reproduce on a simple example.
Debugger output, and assembler both suggests it's in the compilation.
fpc from trunk a few weeks ago. using -OpPENTIUMM -O1
one procedure is declared as
procedure SetFoldState(const AValue: String);
another one calls this as follows
if FPendingFoldState <> '' then
SetFoldState(FPendingFoldState);
FPendingFoldState is a variable (String) of the object (both methods
belong to the same object too)
Now in SetFoldstate is a line:
FPendingFoldState:='';
and after this AValue becomes corrupt
The assembler of the calling code (from -al)
# [6541] if FPendingFoldState <> '' then
movl -4(%ebp),%eax
movl 1352(%eax),%eax
testl %eax,%eax
je .Lj12594
.Ll3371:
# [6542] SetFoldState(FPendingFoldState);
movl -4(%ebp),%eax
movl 1352(%eax),%edx
movl -4(%ebp),%eax
call SYNEDIT_TCUSTOMSYNEDIT_$__SETFOLDSTATE$ANSISTRING
.Lj12594:
There is no ansistring inc ref (both methods are in the same file, and
yes {$H+}
Trying to reproduce in a smaller example did not bring results....
Anyone any idea, if there s any code that could cause such an
"optimization" ?
Martin
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