Ping!
Regards
Senthil
Senthil Kumar Selvaraj writes:
> Hi,
>
> Is it ok to backport PR 65210 to gcc-5-branch? The patch is already in
> 6.x and trunk.
>
> Regards
> Senthil
>
> gcc/ChangeLog
>
> 2016-09-22 Senthil Kumar Selvaraj <senthil_kumar.selva...@atmel.com>
>
> Backport from trunk r227496
>
> PR target/65210
> * config/avr/avr.c (avr_eval_addr_attrib): Look for io_low
> attribute as well.
>
> gcc/testsuite/ChangeLog
>
> 2016-09-22 Senthil Kumar Selvaraj <senthil_kumar.selva...@atmel.com>
>
> Backport from trunk r227496
>
> PR target/65210
> * gcc.target/avr/pr65210.c: New test.
>
> Index: gcc/config/avr/avr.c
> ===================================================================
> --- gcc/config/avr/avr.c (revision 240340)
> +++ gcc/config/avr/avr.c (working copy)
> @@ -9122,6 +9122,8 @@
> 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))
> Index: gcc/testsuite/gcc.target/avr/pr65210.c
> ===================================================================
> --- gcc/testsuite/gcc.target/avr/pr65210.c (nonexistent)
> +++ gcc/testsuite/gcc.target/avr/pr65210.c (working copy)
> @@ -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)));
