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[PATCH qemu v5 08/14] target/riscv: rvv: Add tail agnostic for vector in
From: |
~eopxd |
Subject: |
[PATCH qemu v5 08/14] target/riscv: rvv: Add tail agnostic for vector integer comparison instructions |
Date: |
Mon, 28 Mar 2022 07:20:51 -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 6557a75e79..b5020f9d8c 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -1362,6 +1362,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void
*vs2, \
{ \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
+ uint32_t esz = sizeof(ETYPE); \
+ uint32_t total_elems = vext_get_total_elems(desc, esz); \
+ uint32_t vta = vext_vta(desc); \
uint32_t i; \
\
for (i = env->vstart; i < vl; i++) { \
@@ -1373,6 +1376,12 @@ 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 < total_elems; i++) { \
+ vext_set_elem_mask(vd, i, 1); \
+ } \
+ } \
}
GEN_VEXT_CMP_VV(vmseq_vv_b, uint8_t, H1, DO_MSEQ)
@@ -1411,6 +1420,9 @@ 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 esz = sizeof(ETYPE); \
+ uint32_t total_elems = vext_get_total_elems(desc, esz); \
+ uint32_t vta = vext_vta(desc); \
uint32_t i; \
\
for (i = env->vstart; i < vl; i++) { \
@@ -1422,6 +1434,12 @@ 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 < total_elems; 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 v5 00/14] Add tail agnostic behavior for rvv instructions, ~eopxd, 2022/03/28
- [PATCH qemu v5 03/14] target/riscv: rvv: Early exit when vstart >= vl, ~eopxd, 2022/03/28
- [PATCH qemu v5 02/14] target/riscv: rvv: Rename ambiguous esz, ~eopxd, 2022/03/28
- [PATCH qemu v5 04/14] target/riscv: rvv: Add tail agnostic for vv instructions, ~eopxd, 2022/03/28
- [PATCH qemu v5 08/14] target/riscv: rvv: Add tail agnostic for vector integer comparison instructions,
~eopxd <=
- [PATCH qemu v5 06/14] target/riscv: rvv: Add tail agnostic for vx, vvm, vxm instructions, ~eopxd, 2022/03/28
- [PATCH qemu v5 05/14] target/riscv: rvv: Add tail agnostic for vector load / store instructions, ~eopxd, 2022/03/28
[PATCH qemu v5 07/14] target/riscv: rvv: Add tail agnostic for vector integer shift instructions, ~eopxd, 2022/03/28
[PATCH qemu v5 01/14] target/riscv: rvv: Prune redundant ESZ, DSZ parameter passed, ~eopxd, 2022/03/28
[PATCH qemu v5 10/14] target/riscv: rvv: Add tail agnostic for vector fix-point arithmetic instructions, ~eopxd, 2022/03/28