From: Frank Chang <frank.ch...@sifive.com>
Clear tail elements only if VTA is agnostic.
Signed-off-by: Frank Chang <frank.ch...@sifive.com>
---
target/riscv/vector_helper.c | 52 ++++++++++++++++++++----------------
1 file changed, 29 insertions(+), 23 deletions(-)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 95cce063d0..8dccec4e04 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -4174,27 +4174,30 @@ GEN_VEXT_VF(vfsgnjx_vf_w, 4, 4, clearl)
GEN_VEXT_VF(vfsgnjx_vf_d, 8, 8, clearq)
/* Vector Floating-Point Compare Instructions */
-#define GEN_VEXT_CMP_VV_ENV(NAME, ETYPE, H, DO_OP) \
-void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \
- CPURISCVState *env, uint32_t desc) \
-{ \
- uint32_t vm = vext_vm(desc); \
- uint32_t vl = env->vl; \
- uint32_t vlmax = vext_maxsz(desc) / sizeof(ETYPE); \
- uint32_t i; \
- \
- for (i = 0; i < vl; i++) { \
- ETYPE s1 = *((ETYPE *)vs1 + H(i)); \
- ETYPE s2 = *((ETYPE *)vs2 + H(i)); \
- if (!vm && !vext_elem_mask(v0, i)) { \
- continue; \
- } \
- vext_set_elem_mask(vd, i, \
- DO_OP(s2, s1, &env->fp_status)); \
- } \
- for (; i < vlmax; i++) { \
- vext_set_elem_mask(vd, i, 0); \
- } \
+#define GEN_VEXT_CMP_VV_ENV(NAME, ETYPE, H, DO_OP) \
+void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \
+ CPURISCVState *env, uint32_t desc) \
+{ \
+ uint32_t vm = vext_vm(desc); \
+ uint32_t vl = env->vl; \
+ uint32_t vlmax = vext_max_elems(desc, sizeof(ETYPE), false); \
+ uint32_t vta = vext_vta(desc); \
+ uint32_t i; \
+ \
+ for (i = 0; i < vl; i++) { \
+ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \
+ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \
+ if (!vm && !vext_elem_mask(v0, i)) { \
+ continue; \
+ } \
+ vext_set_elem_mask(vd, i, \
+ DO_OP(s2, s1, &env->fp_status)); \
+ } \
+ if (vta == 1) { \
+ for (; i < vlmax; i++) { \
+ vext_set_elem_mask(vd, i, 1); \
+ } \
+ } \
}
GEN_VEXT_CMP_VV_ENV(vmfeq_vv_h, uint16_t, H2, float16_eq_quiet)
@@ -4208,6 +4211,7 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void
*vs2, \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
uint32_t vlmax = vext_max_elems(desc, sizeof(ETYPE), false); \
+ uint32_t vta = vext_vta(desc); \
uint32_t i; \
\
for (i = 0; i < vl; i++) { \
@@ -4218,8 +4222,10 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void
*vs2, \
vext_set_elem_mask(vd, i, \
DO_OP(s2, (ETYPE)s1, &env->fp_status)); \
} \
- for (; i < vlmax; i++) { \
- vext_set_elem_mask(vd, i, 0); \
+ if (vta == 1) { \
+ for (; i < vlmax; i++) { \
+ vext_set_elem_mask(vd, i, 1); \
+ } \
} \
}
--
2.17.1
