diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2021-06-07 17:31:03 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2021-06-07 17:31:24 +0100 |
commit | 4be25d5171bedff5a5a91b6d9ceafeebeff0608c (patch) | |
tree | fa13934b36bb3a4800c2be4ed25616d168eb24cc | |
parent | 0fdfa5912b11ce5cf6d4e07ab3931b81d7a26ec5 (diff) |
target/arm: Implement MVE VMULL
Implement the MVE VMULL insn, which multiplies two single
width integer elements to produce a double width result.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | target/arm/helper-mve.h | 14 | ||||
-rw-r--r-- | target/arm/mve.decode | 5 | ||||
-rw-r--r-- | target/arm/mve_helper.c | 35 | ||||
-rw-r--r-- | target/arm/translate-mve.c | 4 |
4 files changed, 58 insertions, 0 deletions
diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 7b22990c3b..66d31633ce 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -132,3 +132,17 @@ DEF_HELPER_FLAGS_4(mve_vhsubsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vhsubub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vhsubuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vhsubuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) + +DEF_HELPER_FLAGS_4(mve_vmullbsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmullbsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmullbsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmullbub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmullbuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmullbuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) + +DEF_HELPER_FLAGS_4(mve_vmulltsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulltsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulltsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulltub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulltuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulltuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 241d1c44c1..5a480d61cd 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -101,6 +101,11 @@ VHADD_U 111 1 1111 0 . .. ... 0 ... 0 0000 . 1 . 0 ... 0 @2op VHSUB_S 111 0 1111 0 . .. ... 0 ... 0 0010 . 1 . 0 ... 0 @2op VHSUB_U 111 1 1111 0 . .. ... 0 ... 0 0010 . 1 . 0 ... 0 @2op +VMULL_BS 111 0 1110 0 . .. ... 1 ... 0 1110 . 0 . 0 ... 0 @2op +VMULL_BU 111 1 1110 0 . .. ... 1 ... 0 1110 . 0 . 0 ... 0 @2op +VMULL_TS 111 0 1110 0 . .. ... 1 ... 1 1110 . 0 . 0 ... 0 @2op +VMULL_TU 111 1 1110 0 . .. ... 1 ... 1 1110 . 0 . 0 ... 0 @2op + # Vector miscellaneous VCLS 1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index 5982f6bf5e..2d0c6998ca 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -335,6 +335,27 @@ DO_1OP(vfnegs, 4, uint32_t, H4, DO_FNEG) DO_2OP(OP##h, 2, int16_t, H2, FN) \ DO_2OP(OP##w, 4, int32_t, H4, FN) +/* + * "Long" operations where two half-sized inputs (taken from either the + * top or the bottom of the input vector) produce a double-width result. + * Here TYPE and H are for the input, and LESIZE, LTYPE, LH for the output. + */ +#define DO_2OP_L(OP, TOP, TYPE, H, LESIZE, LTYPE, LH, FN) \ + void HELPER(glue(mve_, OP))(CPUARMState *env, void *vd, void *vn, void *vm) \ + { \ + LTYPE *d = vd; \ + TYPE *n = vn, *m = vm; \ + uint16_t mask = mve_element_mask(env); \ + unsigned le; \ + for (le = 0; le < 16 / LESIZE; le++, mask >>= LESIZE) { \ + LTYPE r = FN((LTYPE)n[H(le * 2 + TOP)], m[H(le * 2 + TOP)]); \ + uint64_t bytemask = mask_to_bytemask##LESIZE(mask); \ + d[LH(le)] &= ~bytemask; \ + d[LH(le)] |= (r & bytemask); \ + } \ + mve_advance_vpt(env); \ + } + #define DO_AND(N, M) ((N) & (M)) #define DO_BIC(N, M) ((N) & ~(M)) #define DO_ORR(N, M) ((N) | (M)) @@ -355,6 +376,20 @@ DO_2OP_U(vadd, DO_ADD) DO_2OP_U(vsub, DO_SUB) DO_2OP_U(vmul, DO_MUL) +DO_2OP_L(vmullbsb, 0, int8_t, H1, 2, int16_t, H2, DO_MUL) +DO_2OP_L(vmullbsh, 0, int16_t, H2, 4, int32_t, H4, DO_MUL) +DO_2OP_L(vmullbsw, 0, int32_t, H4, 8, int64_t, , DO_MUL) +DO_2OP_L(vmullbub, 0, uint8_t, H1, 2, uint16_t, H2, DO_MUL) +DO_2OP_L(vmullbuh, 0, uint16_t, H2, 4, uint32_t, H4, DO_MUL) +DO_2OP_L(vmullbuw, 0, uint32_t, H4, 8, uint64_t, , DO_MUL) + +DO_2OP_L(vmulltsb, 1, int8_t, H1, 2, int16_t, H2, DO_MUL) +DO_2OP_L(vmulltsh, 1, int16_t, H2, 4, int32_t, H4, DO_MUL) +DO_2OP_L(vmulltsw, 1, int32_t, H4, 8, int64_t, , DO_MUL) +DO_2OP_L(vmulltub, 1, uint8_t, H1, 2, uint16_t, H2, DO_MUL) +DO_2OP_L(vmulltuh, 1, uint16_t, H2, 4, uint32_t, H4, DO_MUL) +DO_2OP_L(vmulltuw, 1, uint32_t, H4, 8, uint64_t, , DO_MUL) + /* * Because the computation type is at least twice as large as required, * these work for both signed and unsigned source types. diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index c22b739f36..ccff7fc0ec 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -393,3 +393,7 @@ DO_2OP(VHADD_S, vhadds) DO_2OP(VHADD_U, vhaddu) DO_2OP(VHSUB_S, vhsubs) DO_2OP(VHSUB_U, vhsubu) +DO_2OP(VMULL_BS, vmullbs) +DO_2OP(VMULL_BU, vmullbu) +DO_2OP(VMULL_TS, vmullts) +DO_2OP(VMULL_TU, vmulltu) |