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Julian Zhu 4c966c0780 RISC-V: Use builtin for ffs and ffsll while supported extension available 
Hardware ctz instructions are available in the RISC-V Zbb and XTheadBb extension. With special `-march` flags defined, we can generate more simplified code compared to the generic implementation of `ffs`/`ffsll`.

Signed-off-by: Julian Zhu <julian.oerv@isrc.iscas.ac.cn>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2025-04-28 09:51:59 -03:00
..
bits
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2025-01-01 11:22:09 -08:00
multiarch
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2025-01-01 11:22:09 -08:00
nofpu
math: Refactor how to use libm-test-ulps
2025-03-12 13:40:07 -03:00
nptl
Move <thread_pointer.h> to kernel-independent sysdeps directories
2025-01-09 19:30:16 +01:00
rv32
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2025-01-01 11:22:09 -08:00
rv64
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2025-01-01 11:22:09 -08:00
rvd
math: Refactor how to use libm-test-ulps
2025-03-12 13:40:07 -03:00
rvf
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2025-01-01 11:22:09 -08:00
sys
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2025-01-01 11:22:09 -08:00
__longjmp.S
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2025-01-01 11:22:09 -08:00
bsd-_setjmp.c
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bsd-setjmp.c
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configure
Convert to autoconf 2.72 (vanilla release, no distribution patches)
2024-06-17 21:15:28 +02:00
configure.ac
RISC-V: Enable static-pie.
2024-01-12 15:11:45 -03:00
dl-irel.h
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2025-01-01 11:22:09 -08:00
dl-link.sym
RISC-V: Add support for dl_runtime_profile (BZ #31151)
2023-12-30 11:00:10 +01:00
dl-machine.h
RISC-V: Fix IFUNC resolver cannot access gp pointer
2025-02-25 13:08:53 +01:00
dl-relocate-ld.h
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2025-01-01 11:22:09 -08:00
dl-tls.h
Add missing include guards to <dl-tls.h>
2025-01-10 19:02:47 +01:00
dl-trampoline.S
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2025-01-01 11:22:09 -08:00
e_sqrtl.c
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2025-01-01 11:22:09 -08:00
fpu_control.h
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2025-01-01 11:22:09 -08:00
gccframe.h
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2025-01-01 11:22:09 -08:00
Implies
Introduce <elf-initfini.h> and ELF_INITFINI for all architectures
2020-02-18 15:12:25 +01:00
jmpbuf-offsets.h
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2025-01-01 11:22:09 -08:00
jmpbuf-unwind.h
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2025-01-01 11:22:09 -08:00
ldsodefs.h
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2025-01-01 11:22:09 -08:00
libc-tls.c
elf: Remove the remaining uses of GET_ADDR_OFFSET
2025-01-02 13:45:27 +01:00
linkmap.h
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machine-gmon.h
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2025-01-01 11:22:09 -08:00
Makefile
RISC-V: Add support for dl_runtime_profile (BZ #31151)
2023-12-30 11:00:10 +01:00
math-tests-snan-payload.h
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2025-01-01 11:22:09 -08:00
math-tests-trap.h
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2025-01-01 11:22:09 -08:00
math-use-builtins-ffs.h
RISC-V: Use builtin for ffs and ffsll while supported extension available
2025-04-28 09:51:59 -03:00
preconfigure
configure: Use autoconf 2.71
2023-07-17 10:08:10 -04:00
preconfigure.ac
RISC-V: Use an autoconf template to produce `preconfigure'
2022-05-13 17:07:23 +01:00
riscv-ifunc.h
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2025-01-01 11:22:09 -08:00
setjmp.S
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2025-01-01 11:22:09 -08:00
sfp-machine.h
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2025-01-01 11:22:09 -08:00
sotruss-lib.c
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2025-01-01 11:22:09 -08:00
start.S
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2025-01-01 11:22:09 -08:00
string-fza.h
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2025-01-01 11:22:09 -08:00
string-fzi.h
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2025-01-01 11:22:09 -08:00
thread_pointer.h
Move <thread_pointer.h> to kernel-independent sysdeps directories
2025-01-09 19:30:16 +01:00
tininess.h
RISC-V: Generic <math.h> and soft-fp Routines
2018-01-29 10:26:35 -08:00
tst-audit.h
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2025-01-01 11:22:09 -08:00
utmp-size.h
login: Check default sizes of structs utmp, utmpx, lastlog
2024-04-19 14:38:17 +02:00