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| author | Xiao Zeng <zengxiao@eswincomputing.com> | 2024-06-06 15:59:53 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson@rivosinc.com> | 2024-06-06 16:10:53 +0800 |
| commit | 0b4595be3f04aa3741157b24654e554fc3264fc2 (patch) | |
| tree | 777105142cf7f51e06a3a0ec62d8ffd6dbcb8b96 /include | |
| parent | d9c14a8744b01b0d3d03a661c732a4d4d5740fbc (diff) | |
| download | gdb-0b4595be3f04aa3741157b24654e554fc3264fc2.zip gdb-0b4595be3f04aa3741157b24654e554fc3264fc2.tar.gz gdb-0b4595be3f04aa3741157b24654e554fc3264fc2.tar.bz2 | |
RISC-V: Add support for Zvfbfwma extension
This implements the Zvfbfwma extension, as of version 1.0.
View detailed information in:
<https://github.com/riscv/riscv-isa-manual/blob/main/src/bfloat16.adoc#zvfbfwma---vector-bf16-widening-mul-add>
1 In spec: "Zvfbfwma requires the Zvfbfmin extension and the Zfbfmin extension."
1.1 In Embedded Processor: Zvfbfwma -> Zvfbfmin -> Zve32f
1.2 In Application Processor: Zvfbfwma -> Zvfbfmin -> V
1.3 In both scenarios, there are: Zvfbfwma -> Zfbfmin
2 Depending on different usage scenarios, the Zvfbfwma extension may
depend on 'V' or 'Zve32f'. This patch only implements dependencies in
scenario of Embedded Processor. This is consistent with the processing
strategy in Zvfbfmin. In scenario of Application Processor, it is
necessary to explicitly indicate the dependent 'V' extension.
For relevant information in gcc, please refer to:
<https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=38dd4e26e07c6be7cf4d169141ee4f3a03f3a09d>
bfd/ChangeLog:
* elfxx-riscv.c (riscv_multi_subset_supports): Handle Zvfbfwma.
(riscv_multi_subset_supports_ext): Ditto.
gas/ChangeLog:
* NEWS: Updated.
* testsuite/gas/riscv/march-help.l: Ditto.
* testsuite/gas/riscv/zvfbfwma.d: New test.
* testsuite/gas/riscv/zvfbfwma.s: New test.
include/ChangeLog:
* opcode/riscv-opc.h (MATCH_VFWMACCBF16_VF): Define.
(MASK_VFWMACCBF16_VF): Ditto.
(MATCH_VFWMACCBF16_VV): Ditto.
(MASK_VFWMACCBF16_VV): Ditto.
(DECLARE_INSN): New declarations for Zvfbfwma.
* opcode/riscv.h (enum riscv_insn_class): Add
INSN_CLASS_ZVFBFWMA
opcodes/ChangeLog:
* riscv-opc.c: Add Zvfbfwma instructions.
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/riscv-opc.h | 8 | ||||
| -rw-r--r-- | include/opcode/riscv.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h index c5270d0..e8c08e8 100644 --- a/include/opcode/riscv-opc.h +++ b/include/opcode/riscv-opc.h @@ -2375,6 +2375,11 @@ #define MASK_VFNCVTBF16_F_F_W 0xfc0ff07f #define MATCH_VFWCVTBF16_F_F_V 0x48069057 #define MASK_VFWCVTBF16_F_F_V 0xfc0ff07f +/* Zvfbfwma intructions. */ +#define MATCH_VFWMACCBF16_VF 0xec005057 +#define MASK_VFWMACCBF16_VF 0xfc00707f +#define MATCH_VFWMACCBF16_VV 0xec001057 +#define MASK_VFWMACCBF16_VV 0xfc00707f /* Vendor-specific (CORE-V) Xcvmac instructions. */ #define MATCH_CV_MAC 0x9000302b #define MASK_CV_MAC 0xfe00707f @@ -3985,6 +3990,9 @@ DECLARE_INSN(FCVT_S_BF16, MATCH_FCVT_S_BF16, MASK_FCVT_S_BF16) /* Zvfbfmin instructions. */ DECLARE_INSN(VFNCVTBF16_F_F_W, MATCH_VFNCVTBF16_F_F_W, MASK_VFNCVTBF16_F_F_W) DECLARE_INSN(VFWCVTBF16_F_F_V, MATCH_VFWCVTBF16_F_F_V, MASK_VFWCVTBF16_F_F_V) +/* Zvfbfwma instructions. */ +DECLARE_INSN(VFWMACCBF16_VF, MATCH_VFWMACCBF16_VF, MASK_VFWMACCBF16_VF) +DECLARE_INSN(VFWMACCBF16_VV, MATCH_VFWMACCBF16_VV, MASK_VFWMACCBF16_VV) /* Zvbb/Zvkb instructions. */ DECLARE_INSN(vandn_vv, MATCH_VANDN_VV, MASK_VANDN_VV) DECLARE_INSN(vandn_vx, MATCH_VANDN_VX, MASK_VANDN_VX) diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h index 0641563..33df56d 100644 --- a/include/opcode/riscv.h +++ b/include/opcode/riscv.h @@ -475,6 +475,7 @@ enum riscv_insn_class INSN_CLASS_ZVBB, INSN_CLASS_ZVBC, INSN_CLASS_ZVFBFMIN, + INSN_CLASS_ZVFBFWMA, INSN_CLASS_ZVKB, INSN_CLASS_ZVKG, INSN_CLASS_ZVKNED, |