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| author | Philipp Tomsich <prt@gnu.org> | 2021-01-07 15:53:25 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson.chu@sifive.com> | 2021-01-07 16:45:43 +0800 |
| commit | aa881ecde48c7a0224b92e2cfa43b37ee9ec9fa2 (patch) | |
| tree | 1b0e0814c4a7ed9567d8d49aad19de327ea78682 /opcodes/ChangeLog | |
| parent | 4d4490b8d772321e9634541b81be25095a5a06ef (diff) | |
| download | binutils-aa881ecde48c7a0224b92e2cfa43b37ee9ec9fa2.zip binutils-aa881ecde48c7a0224b92e2cfa43b37ee9ec9fa2.tar.gz binutils-aa881ecde48c7a0224b92e2cfa43b37ee9ec9fa2.tar.bz2 | |
RISC-V: Add pause hint instruction.
Add support for the pause hint instruction, as specified in the
Zihintpause extension. The pause instruction is encoded as a
special form of a memory fence (which is available as part of the
base instruction set). The chosen encoding does not mandate any
particular memory ordering and therefore is a true hint.
bfd/
* elfxx-riscv.c (riscv_std_z_ext_strtab): Added zihintpause.
gas/
* config/tc-riscv.c (riscv_multi_subset_supports): Added
INSN_CLASS_ZIHINTPAUSE.
* testsuite/gas/riscv/pause.d: New testcase. Adding coverage for
the pause hint instruction.
* testsuite/gas/riscv/pause.s: Likewise.
include/
* opcode/riscv-opc.h: Added MATCH_PAUSE, MASK_PAUSE and DECLARE_INSN
for pause hint instruction.
* opcode/riscv.h (enum riscv_insn_class): Added INSN_CLASS_ZIHINTPAUSE.
opcodes/
* riscv-opc.c (riscv_opcodes): Add pause hint instruction.
Diffstat (limited to 'opcodes/ChangeLog')
| -rw-r--r-- | opcodes/ChangeLog | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 4f4e54e..2add0e7 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,7 @@ +2021-01-07 Philipp Tomsich <prt@gnu.org> + + * riscv-opc.c (riscv_opcodes): Add pause hint instruction. + 2021-01-07 Claire Xenia Wolf <claire@symbioticeda.com> Jim Wilson <jimw@sifive.com> Andrew Waterman <andrew@sifive.com> |