AArch64: 128bit views for SVE registers
Commit Message
SVE can view Z registers as 128bit values using .q prefix.
Add this view to the end of Z registers in the SVE feature (the same as
V registers), keeping the .d view as the first entry.
gdb/ChangeLog:
2019-03-20 Alan Hayward <alan.hayward@arm.com>
* features/aarch64-sve.c (create_feature_aarch64_sve): Add q view.
---
gdb/features/aarch64-sve.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
Comments
Ping.
I’ll push tomorrow if there are no comments for this or
[PATCH] AArch64: View the pseudo V registers as vectors
https://sourceware.org/ml/gdb-patches/2019-03/msg00430.html
Alan.
> On 20 Mar 2019, at 15:26, Alan Hayward <Alan.Hayward@arm.com> wrote:
>
> SVE can view Z registers as 128bit values using .q prefix.
>
> Add this view to the end of Z registers in the SVE feature (the same as
> V registers), keeping the .d view as the first entry.
>
> gdb/ChangeLog:
>
> 2019-03-20 Alan Hayward <alan.hayward@arm.com>
>
> * features/aarch64-sve.c (create_feature_aarch64_sve): Add q view.
> ---
> gdb/features/aarch64-sve.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/gdb/features/aarch64-sve.c b/gdb/features/aarch64-sve.c
> index aa2ac7a3c5..63d8ee666c 100644
> --- a/gdb/features/aarch64-sve.c
> +++ b/gdb/features/aarch64-sve.c
> @@ -31,6 +31,12 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
>
> feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.sve");
>
> + element_type = tdesc_named_type (feature, "uint128");
> + tdesc_create_vector (feature, "svevqu", element_type, scale);
> +
> + element_type = tdesc_named_type (feature, "int128");
> + tdesc_create_vector (feature, "svevqs", element_type, scale);
> +
> element_type = tdesc_named_type (feature, "ieee_double");
> tdesc_create_vector (feature, "svevdf", element_type, 2 * scale);
>
> @@ -61,6 +67,12 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
> element_type = tdesc_named_type (feature, "int8");
> tdesc_create_vector (feature, "svevbs", element_type, 16 * scale);
>
> + type_with_fields = tdesc_create_union (feature, "svevnq");
> + field_type = tdesc_named_type (feature, "svevqu");
> + tdesc_add_field (type_with_fields, "u", field_type);
> + field_type = tdesc_named_type (feature, "svevqs");
> + tdesc_add_field (type_with_fields, "s", field_type);
> +
> type_with_fields = tdesc_create_union (feature, "svevnd");
> field_type = tdesc_named_type (feature, "svevdf");
> tdesc_add_field (type_with_fields, "f", field_type);
> @@ -98,6 +110,8 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
> tdesc_add_field (type_with_fields, "h", field_type);
> field_type = tdesc_named_type (feature, "svevnb");
> tdesc_add_field (type_with_fields, "b", field_type);
> + field_type = tdesc_named_type (feature, "svevnq");
> + tdesc_add_field (type_with_fields, "q", field_type);
>
> field_type = tdesc_named_type (feature, "uint8");
> tdesc_create_vector (feature, "svep", field_type, 2 * scale);
> --
> 2.17.2 (Apple Git-113)
>
@@ -31,6 +31,12 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.sve");
+ element_type = tdesc_named_type (feature, "uint128");
+ tdesc_create_vector (feature, "svevqu", element_type, scale);
+
+ element_type = tdesc_named_type (feature, "int128");
+ tdesc_create_vector (feature, "svevqs", element_type, scale);
+
element_type = tdesc_named_type (feature, "ieee_double");
tdesc_create_vector (feature, "svevdf", element_type, 2 * scale);
@@ -61,6 +67,12 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
element_type = tdesc_named_type (feature, "int8");
tdesc_create_vector (feature, "svevbs", element_type, 16 * scale);
+ type_with_fields = tdesc_create_union (feature, "svevnq");
+ field_type = tdesc_named_type (feature, "svevqu");
+ tdesc_add_field (type_with_fields, "u", field_type);
+ field_type = tdesc_named_type (feature, "svevqs");
+ tdesc_add_field (type_with_fields, "s", field_type);
+
type_with_fields = tdesc_create_union (feature, "svevnd");
field_type = tdesc_named_type (feature, "svevdf");
tdesc_add_field (type_with_fields, "f", field_type);
@@ -98,6 +110,8 @@ create_feature_aarch64_sve (struct target_desc *result, long regnum,
tdesc_add_field (type_with_fields, "h", field_type);
field_type = tdesc_named_type (feature, "svevnb");
tdesc_add_field (type_with_fields, "b", field_type);
+ field_type = tdesc_named_type (feature, "svevnq");
+ tdesc_add_field (type_with_fields, "q", field_type);
field_type = tdesc_named_type (feature, "uint8");
tdesc_create_vector (feature, "svep", field_type, 2 * scale);