Commit 23850a74 authored by Richard Henderson's avatar Richard Henderson
Browse files

tcg: Implement gvec support for rotate by scalar 



No host backend support yet, but the interfaces for rotls
are in place.  Only implement left-rotate for now, as the
only known use of vector rotate by scalar is s390x, so any
right-rotate would be unused and untestable.

Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent 3d5bb2ea

include/tcg/tcg-op-gvec.h

+2 −0
Original line number Diff line number Diff line
@@ -345,6 +345,8 @@ void tcg_gen_gvec_shrs(unsigned vece, uint32_t dofs, uint32_t aofs, 
                       TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);

void tcg_gen_gvec_sars(unsigned vece, uint32_t dofs, uint32_t aofs,

                       TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);

void tcg_gen_gvec_rotls(unsigned vece, uint32_t dofs, uint32_t aofs,

                        TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz);



/*

 * Perform vector shift by vector element, modulo the element size.

include/tcg/tcg-op.h

+1 −0
Original line number Diff line number Diff line
@@ -1005,6 +1005,7 @@ void tcg_gen_rotri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); 
void tcg_gen_shls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s);

void tcg_gen_shrs_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s);

void tcg_gen_sars_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s);

void tcg_gen_rotls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s);



void tcg_gen_shlv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec s);

void tcg_gen_shrv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec s);

include/tcg/tcg-opc.h

+1 −0
Original line number Diff line number Diff line
@@ -253,6 +253,7 @@ DEF(rotli_vec, 1, 1, 1, IMPLVEC | IMPL(TCG_TARGET_HAS_roti_vec)) 
DEF(shls_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shs_vec))

DEF(shrs_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shs_vec))

DEF(sars_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shs_vec))

DEF(rotls_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_rots_vec))



DEF(shlv_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shv_vec))

DEF(shrv_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shv_vec))

include/tcg/tcg.h

+1 −0
Original line number Diff line number Diff line
@@ -183,6 +183,7 @@ typedef uint64_t TCGRegSet; 
#define TCG_TARGET_HAS_andc_vec         0

#define TCG_TARGET_HAS_orc_vec          0

#define TCG_TARGET_HAS_roti_vec         0

#define TCG_TARGET_HAS_rots_vec         0

#define TCG_TARGET_HAS_rotv_vec         0

#define TCG_TARGET_HAS_shi_vec          0

#define TCG_TARGET_HAS_shs_vec          0

tcg/aarch64/tcg-target.h

+1 −0
Original line number Diff line number Diff line
@@ -134,6 +134,7 @@ typedef enum { 
#define TCG_TARGET_HAS_neg_vec          1

#define TCG_TARGET_HAS_abs_vec          1

#define TCG_TARGET_HAS_roti_vec         0

#define TCG_TARGET_HAS_rots_vec         0

#define TCG_TARGET_HAS_rotv_vec         0

#define TCG_TARGET_HAS_shi_vec          1

#define TCG_TARGET_HAS_shs_vec          0