* Claudiu Zissulescu <claudiu.zissule...@synopsys.com> [2017-11-27 12:09:57
+0100]:
> From: Claudiu Zissulescu <claz...@gmail.com>
>
> Use munaligned-access to control if we can have unaligned accesses. For ARC
> HS family unaligned access is always on.
>
> 2017-10-19 Claudiu Zissulescu <claz...@synopsys.com>
>
> * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
> * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
> munaligned-access.
This looks fine,
Thanks,
Andrew
> ---
> gcc/config/arc/arc-c.def | 1 +
> gcc/config/arc/arc.h | 2 +-
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/config/arc/arc-c.def b/gcc/config/arc/arc-c.def
> index c9443c9..86eab4e 100644
> --- a/gcc/config/arc/arc-c.def
> +++ b/gcc/config/arc/arc-c.def
> @@ -29,6 +29,7 @@ ARC_C_DEF ("__ARC_MUL64__", TARGET_MUL64_SET)
> ARC_C_DEF ("__ARC_MUL32BY16__", TARGET_MULMAC_32BY16_SET)
> ARC_C_DEF ("__ARC_SIMD__", TARGET_SIMD_SET)
> ARC_C_DEF ("__ARC_RF16__", TARGET_RF16)
> +ARC_C_DEF ("__ARC_UNALIGNED__", !STRICT_ALIGNMENT)
>
> ARC_C_DEF ("__ARC_BARREL_SHIFTER__", TARGET_BARREL_SHIFTER)
>
> diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
> index 8d90975..8c31fb2 100644
> --- a/gcc/config/arc/arc.h
> +++ b/gcc/config/arc/arc.h
> @@ -288,7 +288,7 @@ if (GET_MODE_CLASS (MODE) == MODE_INT \
> /* On the ARC the lower address bits are masked to 0 as necessary. The chip
> won't croak when given an unaligned address, but the insn will still fail
> to produce the correct result. */
> -#define STRICT_ALIGNMENT 1
> +#define STRICT_ALIGNMENT (!unaligned_access && !TARGET_HS)
>
> /* Layout of source language data types. */
>
> --
> 1.9.1
>
