[fpc-devel] crash with -gt -O2 in trunk

[Martin]

Ok, I should say first, I do not know if it is fpc, or lazarus. At the 
moment I guess fpc.

It only happens in trunk (15366, also seen with earlier trunk) / rel 
2.4.0 seems to be not affected
It only happens in combination of -O2 and -gt together.

Compiled lazarus with:   -gh -gt -g -gl  -gw -godwarfsets  -O2

According to the debugger (if it can be trusted on -O2) this is inside 
an end statement. It is also within the rtl. So the later makes me think 
it could be FPC

Since I am not familiar with this ode, I have no idea how to create a 
simple example that triggers the issue (for the same reason I do not 
know if it may be caused by something in Lazarus, passed to the RTL).

Observed on Windows Vista / stack is with laz rev 25916

Martin

  Exception=Error reading ReplaceAllButton.Kind: Access violation
   Stack trace:
   $0047ED1A line 1255 of ../objpas/classes/reader.inc
   $0047DF6B line 963 of ../objpas/classes/reader.inc
   $0047855B line 317 of ../objpas/classes/compon.inc
   $0047DCD2 line 927 of ../objpas/classes/reader.inc
   $0047DFF5 line 976 of ../objpas/classes/reader.inc
   $0047855B line 317 of ../objpas/classes/compon.inc
   $0047DCD2 line 927 of ../objpas/classes/reader.inc
   $0047DFF5 line 976 of ../objpas/classes/reader.inc
   $0047855B line 317 of ../objpas/classes/compon.inc
   $0047F74D line 1433 of ../objpas/classes/reader.inc
   $004C2970 line 3043 of lresources.pp
   $004C27CC line 3063 of lresources.pp
   $0041ED11 line 2749 of include/customform.inc
   $0084AAC7 line 138 of findreplacedialog.pp
   $0042EDB7 line 1477 of main.pp
   $00402F33 line 103 of lazarus.pp