[PULL v2 18/27] target/riscv: rvv: Check single width operator for vector fp widen instructions

Alistair Francis posted 27 patches 5 months, 3 weeks ago
Maintainers: Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <Alistair.Francis@wdc.com>, Bin Meng <bmeng.cn@gmail.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Christoph Muellner <christoph.muellner@vrull.eu>
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[PULL v2 18/27] target/riscv: rvv: Check single width operator for vector fp widen instructions
Posted by Alistair Francis 5 months, 3 weeks ago
From: Max Chou <max.chou@sifive.com>

The require_scale_rvf function only checks the double width operator for
the vector floating point widen instructions, so most of the widen
checking functions need to add require_rvf for single width operator.

The vfwcvt.f.x.v and vfwcvt.f.xu.v instructions convert single width
integer to double width float, so the opfxv_widen_check function doesn’t
need require_rvf for the single width operator(integer).

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Message-ID: <20240322092600.1198921-3-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/insn_trans/trans_rvv.c.inc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index 678b34b759..a7217aed4e 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -2331,6 +2331,7 @@ GEN_OPFVF_TRANS(vfrsub_vf,  opfvf_check)
 static bool opfvv_widen_check(DisasContext *s, arg_rmrr *a)
 {
     return require_rvv(s) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8) &&
            vext_check_isa_ill(s) &&
@@ -2370,6 +2371,7 @@ GEN_OPFVV_WIDEN_TRANS(vfwsub_vv, opfvv_widen_check)
 static bool opfvf_widen_check(DisasContext *s, arg_rmrr *a)
 {
     return require_rvv(s) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8) &&
            vext_check_isa_ill(s) &&
@@ -2402,6 +2404,7 @@ GEN_OPFVF_WIDEN_TRANS(vfwsub_vf)
 static bool opfwv_widen_check(DisasContext *s, arg_rmrr *a)
 {
     return require_rvv(s) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8) &&
            vext_check_isa_ill(s) &&
@@ -2441,6 +2444,7 @@ GEN_OPFWV_WIDEN_TRANS(vfwsub_wv)
 static bool opfwf_widen_check(DisasContext *s, arg_rmrr *a)
 {
     return require_rvv(s) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8) &&
            vext_check_isa_ill(s) &&
@@ -2941,6 +2945,7 @@ GEN_OPFVV_TRANS(vfredmin_vs, freduction_check)
 static bool freduction_widen_check(DisasContext *s, arg_rmrr *a)
 {
     return reduction_widen_check(s, a) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8);
 }
-- 
2.45.1