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[PULL 58/88] target/riscv: rvv-1.0: slide instructions
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From: |
Alistair Francis |
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Subject: |
[PULL 58/88] target/riscv: rvv-1.0: slide instructions |
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Date: |
Mon, 20 Dec 2021 14:56:35 +1000 |
From: Frank Chang <frank.chang@sifive.com>
* Remove clear function from helper functions as the tail elements
are unchanged in RVV 1.0.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211210075704.23951-51-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/vector_helper.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index f883fdf474..d79f59e443 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -4430,17 +4430,22 @@ GEN_VEXT_VSLIDEUP_VX(vslideup_vx_d, uint64_t, H8)
void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \
CPURISCVState *env, uint32_t desc) \
{ \
- uint32_t vlmax = env_archcpu(env)->cfg.vlen; \
+ uint32_t vlmax = vext_max_elems(desc, ctzl(sizeof(ETYPE))); \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
- target_ulong offset = s1, i; \
+ target_ulong i_max, i; \
\
- for (i = 0; i < vl; ++i) { \
- target_ulong j = i + offset; \
- if (!vm && !vext_elem_mask(v0, i)) { \
- continue; \
+ i_max = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \
+ for (i = 0; i < i_max; ++i) { \
+ if (vm || vext_elem_mask(v0, i)) { \
+ *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i + s1)); \
+ } \
+ } \
+ \
+ for (i = i_max; i < vl; ++i) { \
+ if (vm || vext_elem_mask(v0, i)) { \
+ *((ETYPE *)vd + H(i)) = 0; \
} \
- *((ETYPE *)vd + H(i)) = j >= vlmax ? 0 : *((ETYPE *)vs2 + H(j)); \
} \
}
--
2.31.1
- [PULL 43/88] target/riscv: rvv-1.0: register gather instructions, (continued)
- [PULL 43/88] target/riscv: rvv-1.0: register gather instructions, Alistair Francis, 2021/12/20
- [PULL 48/88] target/riscv: rvv-1.0: integer extension instructions, Alistair Francis, 2021/12/20
- [PULL 55/88] target/riscv: rvv-1.0: integer comparison instructions, Alistair Francis, 2021/12/20
- [PULL 61/88] target/riscv: rvv-1.0: single-width floating-point reduction, Alistair Francis, 2021/12/20
- [PULL 65/88] target/riscv: rvv-1.0: remove vmford.vv and vmford.vf, Alistair Francis, 2021/12/20
- [PULL 86/88] riscv: Set 5.4 as minimum kernel version for riscv32, Alistair Francis, 2021/12/20
- [PULL 73/88] target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits, Alistair Francis, 2021/12/20
- [PULL 77/88] target/riscv: rvv-1.0: floating-point reciprocal square-root estimate instruction, Alistair Francis, 2021/12/20
- [PULL 63/88] target/riscv: rvv-1.0: single-width scaling shift instructions, Alistair Francis, 2021/12/20
- [PULL 74/88] target/riscv: rvv-1.0: implement vstart CSR, Alistair Francis, 2021/12/20
- [PULL 58/88] target/riscv: rvv-1.0: slide instructions,
Alistair Francis <=
- [PULL 64/88] target/riscv: rvv-1.0: remove widening saturating scaled multiply-add, Alistair Francis, 2021/12/20
- [PULL 71/88] target/riscv: add "set round to odd" rounding mode helper function, Alistair Francis, 2021/12/20
- [PULL 66/88] target/riscv: rvv-1.0: remove integer extract instruction, Alistair Francis, 2021/12/20
- [PULL 62/88] target/riscv: rvv-1.0: widening floating-point reduction instructions, Alistair Francis, 2021/12/20
- [PULL 88/88] hw/riscv: Use load address rather than entry point for fw_dynamic next_addr, Alistair Francis, 2021/12/20
- [PULL 82/88] target/riscv: rvv-1.0: add vector unit-stride mask load/store insns, Alistair Francis, 2021/12/20
- [PULL 69/88] target/riscv: rvv-1.0: floating-point/integer type-convert instructions, Alistair Francis, 2021/12/20
- [PULL 72/88] target/riscv: rvv-1.0: narrowing floating-point/integer type-convert, Alistair Francis, 2021/12/20
- [PULL 59/88] target/riscv: rvv-1.0: floating-point slide instructions, Alistair Francis, 2021/12/20
- [PULL 76/88] target/riscv: gdb: support vector registers for rv64 & rv32, Alistair Francis, 2021/12/20