[Bug target/25718] New: invalid assembly for unsigned-minimum expressions.

["hp at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

For this code:
unsigned foo(unsigned a)
{
  unsigned l;
  l = (a >= (~0u - 512) ? (~0u - 512) : a);
  return l;
}

At any optimization level, including -O0, -O1 and -O2, you get
(at varying lines, of course):
x.s: Assembler messages:
x.s:14: Error: Immediate value not in 8 bit range: -513

The offending asm is:
        bound.b -513,$r9

where the -513 operand is clearly not in the range (signed+unsigned) -128..255.
I can trace this back to (a modified version of) gcc-3.2.


-- 
           Summary: invalid assembly for unsigned-minimum expressions.
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: hp at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
GCC target triplet: cris-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25718