These patches allow to expand the following builtins to floating point
instructions for LoongArch:
- __builtin_rint{,f}
- __builtin_{l,ll}rint{,f}
- __builtin_{l,ll}floor{,f}
- __builtin_{l,ll}ceil{,f}
- __builtin_scalb{n,ln}{,f}
- __builtin_logb{,f}
Bootstrapped and regtested on loongarch64-linux-gnu. And a modified
Glibc using the builtins for rint{,f}, {l,ll}rint{,f}, and logb{,f}
also survived Glibc test suite.
Please review ASAP because GCC 13 stage 1 will end on Nov. 13th.
v1 -> v2: Only use ftint{rm,rp} instructions if floor and ceil are
allowed to raise inexact exception.
Xi Ruoyao (4):
LoongArch: Rename frint_<fmt> to rint<mode>2
LoongArch: Add ftint{,rm,rp}.{w,l}.{s,d} instructions
LoongArch: Add fscaleb.{s,d} instructions as ldexp{sf,df}3
LoongArch: Add flogb.{s,d} instructions and expand logb{sf,df}2
gcc/config/loongarch/loongarch.md | 95 ++++++++++++++++++-
gcc/testsuite/gcc.target/loongarch/flogb.c | 18 ++++
gcc/testsuite/gcc.target/loongarch/frint.c | 16 ++++
gcc/testsuite/gcc.target/loongarch/fscaleb.c | 48 ++++++++++
.../gcc.target/loongarch/ftint-no-inexact.c | 44 +++++++++
gcc/testsuite/gcc.target/loongarch/ftint.c | 44 +++++++++
6 files changed, 261 insertions(+), 4 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/loongarch/flogb.c
create mode 100644 gcc/testsuite/gcc.target/loongarch/frint.c
create mode 100644 gcc/testsuite/gcc.target/loongarch/fscaleb.c
create mode 100644 gcc/testsuite/gcc.target/loongarch/ftint-no-inexact.c
create mode 100644 gcc/testsuite/gcc.target/loongarch/ftint.c
--
2.38.1
