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| author | Chao Liu <lc00631@tecorigin.com> | 2025-03-10 10:35:24 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2025-03-19 16:39:00 +1000 |
| commit | e83845316abcea9024eb5402a6c5eb8b092c79d5 (patch) | |
| tree | dc913caab753f40df9de2d2af2b136b35c644dac /target/riscv/vector_internals.h | |
| parent | ec6411a5251de3479d44c6e539d0e9596c68909b (diff) | |
| download | focaccia-qemu-e83845316abcea9024eb5402a6c5eb8b092c79d5.tar.gz focaccia-qemu-e83845316abcea9024eb5402a6c5eb8b092c79d5.zip | |
target/riscv: refactor VSTART_CHECK_EARLY_EXIT() to accept vl as a parameter
Some vector instructions are special, such as the vlm.v instruction,
where setting its vl actually sets evl = (vl + 7) >> 3. To improve
maintainability, we will uniformly use VSTART_CHECK_EARLY_EXIT() to
check for the condition vstart >= vl. This function will also handle
cases involving evl.
Fixes: df4252b2ec ("target/riscv/vector_helpers: do early exit when
vstart >= vl")
Signed-off-by: Chao Liu <lc00631@tecorigin.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <f575979874e323a9e0da7796aa391c7d87e56f88.1741573286.git.lc00631@tecorigin.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to '')
| -rw-r--r-- | target/riscv/vector_internals.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h index a11cc8366d..8eee7e5c31 100644 --- a/target/riscv/vector_internals.h +++ b/target/riscv/vector_internals.h @@ -25,11 +25,11 @@ #include "tcg/tcg-gvec-desc.h" #include "internals.h" -#define VSTART_CHECK_EARLY_EXIT(env) do { \ - if (env->vstart >= env->vl) { \ - env->vstart = 0; \ - return; \ - } \ +#define VSTART_CHECK_EARLY_EXIT(env, vl) do { \ + if (env->vstart >= vl) { \ + env->vstart = 0; \ + return; \ + } \ } while (0) static inline uint32_t vext_nf(uint32_t desc) @@ -159,7 +159,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vma = vext_vma(desc); \ uint32_t i; \ \ - VSTART_CHECK_EARLY_EXIT(env); \ + VSTART_CHECK_EARLY_EXIT(env, vl); \ \ for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ |