This is the mail archive of the
gcc-cvs@gcc.gnu.org
mailing list for the GCC project.
r278344 - in /trunk/gcc: ChangeLog config/aarch...
- From: rsandifo at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Sat, 16 Nov 2019 11:14:51 -0000
- Subject: r278344 - in /trunk/gcc: ChangeLog config/aarch...
Author: rsandifo
Date: Sat Nov 16 11:14:51 2019
New Revision: 278344
URL: https://gcc.gnu.org/viewcvs?rev=278344&root=gcc&view=rev
Log:
[AArch64] Add truncation for partial SVE modes
This patch adds support for "truncating" to a partial SVE vector from
either a full SVE vector or a wider partial vector. This truncation is
actually a no-op and so should have zero cost in the vector cost model.
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md
(trunc<SVE_HSDI:mode><SVE_PARTIAL_I:mode>2): New pattern.
* config/aarch64/aarch64.c (aarch64_integer_truncation_p): New
function.
(aarch64_sve_adjust_stmt_cost): Call it.
gcc/testsuite/
* gcc.target/aarch64/sve/mask_struct_load_1.c: Add
--param aarch64-sve-compare-costs=0.
* gcc.target/aarch64/sve/mask_struct_load_2.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_3.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_4.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_5.c: Likewise.
* gcc.target/aarch64/sve/pack_1.c: Likewise.
* gcc.target/aarch64/sve/truncate_1.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/aarch64/sve/truncate_1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/aarch64/aarch64-sve.md
trunk/gcc/config/aarch64/aarch64.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/aarch64/sve/mask_struct_load_1.c
trunk/gcc/testsuite/gcc.target/aarch64/sve/mask_struct_load_2.c
trunk/gcc/testsuite/gcc.target/aarch64/sve/mask_struct_load_3.c
trunk/gcc/testsuite/gcc.target/aarch64/sve/mask_struct_load_4.c
trunk/gcc/testsuite/gcc.target/aarch64/sve/mask_struct_load_5.c
trunk/gcc/testsuite/gcc.target/aarch64/sve/pack_1.c