[2/2] RISC-V: Implications from 'Zc[fd]' extensions
Checks
Commit Message
From: Tsukasa OI <research_trasio@irq.a4lg.com>
The version 1.0.4-1 of the code size reduction specification clarifies
that 'Zcf' implies 'F' and 'Zcd' implies 'D'.
cf:
<https://github.com/riscv/riscv-code-size-reduction/releases/tag/v1.0.4-1>
This commit adds those implications.
bfd/ChangeLog:
* elfxx-riscv.c (riscv_implicit_subsets): Add two implications,
'Zcf' -> 'F' and 'Zcd' -> 'D'.
gas/ChangeLog:
* testsuite/gas/riscv/march-imply-zcd.d: New test.
* testsuite/gas/riscv/march-imply-zcf.d: New test.
---
bfd/elfxx-riscv.c | 2 ++
gas/testsuite/gas/riscv/march-imply-zcd.d | 6 ++++++
gas/testsuite/gas/riscv/march-imply-zcf.d | 6 ++++++
3 files changed, 14 insertions(+)
create mode 100644 gas/testsuite/gas/riscv/march-imply-zcd.d
create mode 100644 gas/testsuite/gas/riscv/march-imply-zcf.d
@@ -1132,6 +1132,8 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] =
{"zvl256b", "zvl128b", check_implicit_always},
{"zvl128b", "zvl64b", check_implicit_always},
{"zvl64b", "zvl32b", check_implicit_always},
+ {"zcd", "d", check_implicit_always},
+ {"zcf", "f", check_implicit_always},
{"zfa", "f", check_implicit_always},
{"d", "f", check_implicit_always},
{"zfh", "zfhmin", check_implicit_always},
new file mode 100644
@@ -0,0 +1,6 @@
+#as: -march=rv32i_zcd -march-attr -misa-spec=20191213
+#readelf: -A
+#source: empty.s
+Attribute Section: riscv
+File Attributes
+ Tag_RISCV_arch: "rv32i2p1_f2p2_d2p2_zicsr2p0_zca1p0_zcd1p0"
new file mode 100644
@@ -0,0 +1,6 @@
+#as: -march=rv32i_zcf -march-attr -misa-spec=20191213
+#readelf: -A
+#source: empty.s
+Attribute Section: riscv
+File Attributes
+ Tag_RISCV_arch: "rv32i2p1_f2p2_zicsr2p0_zca1p0_zcf1p0"