Wrong optimisation (web demo)?

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#1

I came across the LLVM demo (http://llvm.cs.uiuc.edu/demo/index.cgi)
today. It seems to mis-optimise my test case, calculating the wrong
value. I'm not a LLVM user so it's not a problem for me; just thought
I'd send it your way in case this is a bug.

The following code should return the value 17 (I tested with GCC, to
be sure):

  int main() {
    int i;
    for (i=0; i<10; i++)
      if (i>5) i+=10;
    return i;
  }

But the demo wants to return 7 instead:

  Output from LLVM disassembler

  target endian = little
  target pointersize = 32
  deplibs = [ "c", "crtend" ]

  implementation ; Functions:

  int %main() {
  loopexit:
  call void %__main( )
  ret int 7
  }

  declare void %__main()

#2

I came across the LLVM demo (http://llvm.cs.uiuc.edu/demo/index.cgi)
today. It seems to mis-optimise my test case, calculating the wrong
value. I'm not a LLVM user so it's not a problem for me; just thought
I'd send it your way in case this is a bug.

Fixed. Patch here:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050221/024295.html

Testcase here:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050221/024294.html

Thanks!

-Chris

The following code should return the value 17 (I tested with GCC, to
be sure):

int main() {
   int i;
   for (i=0; i<10; i++)
     if (i>5) i+=10;
   return i;
}

But the demo wants to return 7 instead:

Output from LLVM disassembler

target endian = little
target pointersize = 32
deplibs = [ "c", "crtend" ]

implementation ; Functions:

int %main() {
loopexit:
  call void %__main( )
  ret int 7
}

declare void %__main()

-Chris