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[PATCH qemu v2 07/13] target/riscv: rvv: Add tail agnostic for vector in
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From: |
~eopxd |
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Subject: |
[PATCH qemu v2 07/13] target/riscv: rvv: Add tail agnostic for vector integer comparison instructions |
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Date: |
Wed, 23 Mar 2022 03:09:00 -0000 |
From: eopXD <eop.chen@sifive.com>
Signed-off-by: eop Chen <eop.chen@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
---
target/riscv/vector_helper.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 860e51154b..e3393f7d99 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -1363,6 +1363,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void
*vs2, \
{ \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
+ uint32_t vlmax = \
+ vext_get_total_elem(env_archcpu(env), env->vtype); \
+ uint32_t vta = vext_vta(desc); \
uint32_t i; \
\
for (i = env->vstart; i < vl; i++) { \
@@ -1374,6 +1377,12 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void
*vs2, \
vext_set_elem_mask(vd, i, DO_OP(s2, s1)); \
} \
env->vstart = 0; \
+ /* set tail elements to 1s */ \
+ if (vta) { \
+ for (; i < vlmax; i++) { \
+ vext_set_elem_mask(vd, i, 1); \
+ } \
+ } \
}
GEN_VEXT_CMP_VV(vmseq_vv_b, uint8_t, H1, DO_MSEQ)
@@ -1412,6 +1421,9 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1,
void *vs2, \
{ \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
+ uint32_t vlmax = \
+ vext_get_total_elem(env_archcpu(env), env->vtype); \
+ uint32_t vta = vext_vta(desc); \
uint32_t i; \
\
for (i = env->vstart; i < vl; i++) { \
@@ -1423,6 +1435,12 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1,
void *vs2, \
DO_OP(s2, (ETYPE)(target_long)s1)); \
} \
env->vstart = 0; \
+ /* set tail elements to 1s */ \
+ if (vta) { \
+ for (; i < vlmax; i++) { \
+ vext_set_elem_mask(vd, i, 1); \
+ } \
+ } \
}
GEN_VEXT_CMP_VX(vmseq_vx_b, uint8_t, H1, DO_MSEQ)
--
2.34.1
- [PATCH qemu v2 00/13] Add tail agnostic behavior for rvv instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 01/13] target/riscv: rvv: Rename ambiguous esz, ~eopxd, 2022/03/22
- [PATCH qemu v2 02/13] target/riscv: rvv: Early exit when vstart >= vl, ~eopxd, 2022/03/22
- [PATCH qemu v2 04/13] target/riscv: rvv: Add tail agnostic for vector load / store instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 03/13] target/riscv: rvv: Add tail agnostic for vv instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 07/13] target/riscv: rvv: Add tail agnostic for vector integer comparison instructions,
~eopxd <=
- [PATCH qemu v2 06/13] target/riscv: rvv: Add tail agnostic for vector integer shift instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 11/13] target/riscv: rvv: Add tail agnostic for vector reduction instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 08/13] target/riscv: rvv: Add tail agnostic for vector integer merge and move instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 05/13] target/riscv: rvv: Add tail agnostic for vx, vvm, vxm instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 12/13] target/riscv: rvv: Add tail agnostic for vector mask instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 13/13] target/riscv: rvv: Add tail agnostic for vector permutation instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 09/13] target/riscv: rvv: Add tail agnostic for vector fix-point arithmetic instructions, ~eopxd, 2022/03/22
- [PATCH qemu v2 10/13] target/riscv: rvv: Add tail agnostic for vector floating-point instructions, ~eopxd, 2022/03/22