Committed.
2015-09-02 10:51 GMT+03:00 Senthil Kumar Selvaraj
<senthil_kumar.selva...@atmel.com>:
> Hi,
>
> This (rather trivial) patch fixes PR65210. The ICE happens because code
> wasn't handling io_low attribute where it is supposed to.
>
> If this is ok, could someone commit please? I don't have commit
> access.
>
> Regards
> Senthil
>
> gcc/ChangeLog
>
> 2015-09-02 Senthil Kumar Selvaraj <senthil_kumar.selva...@atmel.com>
>
> PR target/65210
> * config/avr/avr.c (avr_eval_addr_attrib): Look for io_low
> attribute as well.
>
> gcc/testsuite/ChangeLog
>
> PR target/65210
> * gcc.target/avr/pr65210.c: New test.
>
> diff --git gcc/config/avr/avr.c gcc/config/avr/avr.c
> index bec9a8b..9f5bc88 100644
> --- gcc/config/avr/avr.c
> +++ gcc/config/avr/avr.c
> @@ -9069,6 +9069,8 @@ avr_eval_addr_attrib (rtx x)
> if (SYMBOL_REF_FLAGS (x) & SYMBOL_FLAG_IO)
> {
> attr = lookup_attribute ("io", DECL_ATTRIBUTES (decl));
> + if (!attr || !TREE_VALUE (attr))
> + attr = lookup_attribute ("io_low", DECL_ATTRIBUTES (decl));
> gcc_assert (attr);
> }
> if (!attr || !TREE_VALUE (attr))
> diff --git gcc/testsuite/gcc.target/avr/pr65210.c
> gcc/testsuite/gcc.target/avr/pr65210.c
> new file mode 100644
> index 0000000..1aed441
> --- /dev/null
> +++ gcc/testsuite/gcc.target/avr/pr65210.c
> @@ -0,0 +1,7 @@
> +/* { dg-do compile } */
> +
> +/* This testcase exposes PR65210. Usage of the io_low attribute
> + causes assertion failure because code only looks for the io
> + attribute if SYMBOL_FLAG_IO is set. */
> +
> +volatile char q __attribute__((io_low,address(0x81)));
