From: Daniel Henrique Barboza <dbarb...@ventanamicro.com> Change the for loops in ldst helpers to do a single increment in the counter, and assign it env->vstart, to avoid re-reading from vstart every time.
Suggested-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Daniel Henrique Barboza <dbarb...@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.fran...@wdc.com> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Message-ID: <20240314175704.478276-11-dbarb...@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.fran...@wdc.com> (cherry picked from commit 0a11629c915f61df798919db51a18ffe4649cb65) Signed-off-by: Michael Tokarev <m...@tls.msk.ru> diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 4494313abe..3575912b83 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -198,7 +198,7 @@ vext_ldst_stride(void *vd, void *v0, target_ulong base, VSTART_CHECK_EARLY_EXIT(env); - for (i = env->vstart; i < env->vl; i++, env->vstart++) { + for (i = env->vstart; i < env->vl; env->vstart = ++i) { k = 0; while (k < nf) { if (!vm && !vext_elem_mask(v0, i)) { @@ -266,7 +266,7 @@ vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, VSTART_CHECK_EARLY_EXIT(env); /* load bytes from guest memory */ - for (i = env->vstart; i < evl; i++, env->vstart++) { + for (i = env->vstart; i < evl; env->vstart = ++i) { k = 0; while (k < nf) { target_ulong addr = base + ((i * nf + k) << log2_esz); @@ -382,7 +382,7 @@ vext_ldst_index(void *vd, void *v0, target_ulong base, VSTART_CHECK_EARLY_EXIT(env); /* load bytes from guest memory */ - for (i = env->vstart; i < env->vl; i++, env->vstart++) { + for (i = env->vstart; i < env->vl; env->vstart = ++i) { k = 0; while (k < nf) { if (!vm && !vext_elem_mask(v0, i)) { -- 2.39.2