| commit | d6c4d3f2a693f4520ec72b0bd25be6ec03fee13a | |
| author | Frank Chang <frank.chang@sifive.com> | |
| Fri, 10 Dec 2021 07:56:53 +0000 (10 15:56 +0800) | ||
| committer | Alistair Francis <alistair.francis@wdc.com> | |
| Mon, 20 Dec 2021 04:53:31 +0000 (20 14:53 +1000) | ||
| tree | 4bade95dfa1972d7c5580ae13f9d140e2977e2be | treesnapshot (tar.gz zip) |
| parent | f714361ed79180a9780334cfe1b89b69f6c9bfe9 | commitdiff |
target/riscv: rvv-1.0: trigger illegal instruction exception if frm is not valid
If the frm field contains an invalid rounding mode (101-111),
attempting to execute any vector floating-point instruction, even
those that do not depend on the rounding mode, will raise an illegal
instruction exception.
Call gen_set_rm() with DYN rounding mode to check and trigger illegal
instruction exception if frm field contains invalid value at run-time
for vector floating-point instructions.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-68-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If the frm field contains an invalid rounding mode (101-111),
attempting to execute any vector floating-point instruction, even
those that do not depend on the rounding mode, will raise an illegal
instruction exception.
Call gen_set_rm() with DYN rounding mode to check and trigger illegal
instruction exception if frm field contains invalid value at run-time
for vector floating-point instructions.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-68-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
| target/riscv/insn_trans/trans_rvv.c.inc | diffblobblamehistory |