egcs-980205/sh-coff #pragma interrupt

[Ralf Corsepius]

Hi,

#pragma interrupt handling seems to be broken for sh-coff with
optimization levels greater than -O2.

When having more than one interrupt service routine in a file and using
optimization levels greater than -O2, only the first interrupt handling
routine is handled correctly by egcs. Subsequent #pragma interrupt
functions are treated as normal functions and not as interrupt service
routines.

To reproduce compile the file below with sh-coff-gcc -O[>2] and have a
look at the resulting asm-instructions.

Ralf

---- snip ----
extern void callit0( int );
extern void callit1( int );

#pragma interrupt
void foo0_isr( void )
{
  callit0( 1 );
}

#pragma interrupt
void foo1_isr( void )
{
  callit1( 1 );
}