https://gcc.gnu.org/g:be7a231d52b91d7a50dc88f628e03ce0721c1b05
commit r17-2527-gbe7a231d52b91d7a50dc88f628e03ce0721c1b05 Author: Jiawei <[email protected]> Date: Wed Jun 24 21:46:35 2026 +0800 RISC-V: Add minimal Ssqosid extension support This adds minimal support for the Ssqosid[1] (Supervisor-mode quality-of-service ID) extension. [1] https://github.com/riscv/riscv-ssqosid gcc/ChangeLog: * config/riscv/riscv-ext.def (ssqosid): Add new extension. * config/riscv/riscv-ext.opt: Ditto. * doc/riscv-ext.texi: Ditto. gcc/testsuite/ChangeLog: * gcc.target/riscv/ssqosid-version.c: New test. Diff: --- gcc/config/riscv/riscv-ext.def | 13 +++++++++++++ gcc/config/riscv/riscv-ext.opt | 2 ++ gcc/doc/riscv-ext.texi | 4 ++++ gcc/testsuite/gcc.target/riscv/ssqosid-version.c | 15 +++++++++++++++ 4 files changed, 34 insertions(+) diff --git a/gcc/config/riscv/riscv-ext.def b/gcc/config/riscv/riscv-ext.def index 2ed1e788d0cf..a70d0abe343e 100644 --- a/gcc/config/riscv/riscv-ext.def +++ b/gcc/config/riscv/riscv-ext.def @@ -2001,6 +2001,19 @@ DEFINE_RISCV_EXT( /* BITMASK_BIT_POSITION*/ BITMASK_NOT_YET_ALLOCATED, /* EXTRA_EXTENSION_FLAGS */ 0) +DEFINE_RISCV_EXT( + /* NAME */ ssqosid, + /* UPPERCASE_NAME */ SSQOSID, + /* FULL_NAME */ "Supervisor-mode quality-of-service ID extension", + /* DESC */ "", + /* URL */ , + /* DEP_EXTS */ ({}), + /* SUPPORTED_VERSIONS */ ({{1, 0}}), + /* FLAG_GROUP */ ss, + /* BITMASK_GROUP_ID */ BITMASK_NOT_YET_ALLOCATED, + /* BITMASK_BIT_POSITION*/ BITMASK_NOT_YET_ALLOCATED, + /* EXTRA_EXTENSION_FLAGS */ 0) + DEFINE_RISCV_EXT( /* NAME */ ssstateen, /* UPPERCASE_NAME */ SSSTATEEN, diff --git a/gcc/config/riscv/riscv-ext.opt b/gcc/config/riscv/riscv-ext.opt index d7d0e48d294c..31b3a51a570e 100644 --- a/gcc/config/riscv/riscv-ext.opt +++ b/gcc/config/riscv/riscv-ext.opt @@ -397,6 +397,8 @@ Mask(SSNPM) Var(riscv_ss_subext) Mask(SSPM) Var(riscv_ss_subext) +Mask(SSQOSID) Var(riscv_ss_subext) + Mask(SSSTATEEN) Var(riscv_ss_subext) Mask(SSTC) Var(riscv_ss_subext) diff --git a/gcc/doc/riscv-ext.texi b/gcc/doc/riscv-ext.texi index bebf1c52616a..65b7c5197154 100644 --- a/gcc/doc/riscv-ext.texi +++ b/gcc/doc/riscv-ext.texi @@ -594,6 +594,10 @@ @tab 1.0 @tab Supervisor-mode pointer masking extension +@item @samp{ssqosid} +@tab 1.0 +@tab Supervisor-mode quality-of-service ID extension + @item @samp{ssstateen} @tab 1.0 @tab Supervisor-mode state-enable extension diff --git a/gcc/testsuite/gcc.target/riscv/ssqosid-version.c b/gcc/testsuite/gcc.target/riscv/ssqosid-version.c new file mode 100644 index 000000000000..5821b6a0edd0 --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/ssqosid-version.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-mriscv-attribute -march=rv64i_ssqosid1p0 -mabi=lp64" { target { rv64 } } } */ +/* { dg-options "-mriscv-attribute -march=rv32i_ssqosid1p0 -mabi=ilp32" { target { rv32 } } } */ + +#ifndef __riscv_ssqosid +#error "Feature macro for 'ssqosid' not defined" +#endif + +int +foo (void) +{ + return 0; +} + +/* { dg-final { scan-assembler ".attribute arch, .*ssqosid1p0" } } */
