Skip to content

[libc][math][c++23] Add scalb{,l}nbf16 math functions #155569

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 16 commits into from
Aug 28, 2025
Merged

[libc][math][c++23] Add scalb{,l}nbf16 math functions #155569

Show file tree
Hide file tree
Changes from 15 commits
Commits
Show all changes
16 commits
Select commit Hold shift + click to select a range
64121d4
feat: implement {canonicalize,iscanonical,fdim,copysign,issignaling}b…
krishna2803 Aug 27, 2025
ff3915c
chore: update CMakeLists
krishna2803 Aug 27, 2025
cbdfc66
chore: add smoke tests for {canonicalize,iscanonical,fdim,copysign,is…
krishna2803 Aug 27, 2025
170f9b2
fix: add 0 to T cast
krishna2803 Aug 27, 2025
ceb8818
chore: update entrypoints
krishna2803 Aug 27, 2025
99f5872
docs: add {canonicalize,iscanonical,fdim,copysign,issignaling}bf16 ma…
krishna2803 Aug 27, 2025
204df34
feat: implement totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
06ca9a3
chore: add smoke tests for totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
f83bce4
chore: update entrypoints
krishna2803 Aug 27, 2025
4396ea9
docs: add totalorder{,mag}bf16 math functions
krishna2803 Aug 27, 2025
b633a76
feat: implement scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
e99d5c2
chore: add smoke tests for scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
a7187f9
chore: update entrypoints
krishna2803 Aug 27, 2025
5ff2ddc
docs: add scalb{,l}nbf16 math functions
krishna2803 Aug 27, 2025
68556bd
chore: add FLT_RADIX check in scalb{,l}nbf16 function definitions
krishna2803 Aug 27, 2025
0d67e4e
Merge branch 'main' into users/krishna2803/scalbnbf16
krishna2803 Aug 28, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions libc/config/baremetal/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -772,8 +772,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -790,6 +793,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -809,9 +814,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/baremetal/arm/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -775,8 +775,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -793,6 +796,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -812,9 +817,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/baremetal/riscv/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -775,8 +775,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -793,6 +796,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -812,9 +817,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/darwin/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -605,8 +605,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -623,6 +626,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -642,9 +647,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/darwin/x86_64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -248,8 +248,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -266,6 +269,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -285,9 +290,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/gpu/amdgpu/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -631,8 +631,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -649,6 +652,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -668,9 +673,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/gpu/nvptx/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -633,8 +633,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -651,6 +654,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -670,9 +675,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/aarch64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,8 +860,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -878,6 +881,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -897,9 +902,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/arm/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -475,8 +475,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -493,6 +496,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -512,9 +517,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/riscv/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -878,8 +878,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -896,6 +899,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -915,9 +920,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
9 changes: 9 additions & 0 deletions libc/config/linux/x86_64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -911,8 +911,11 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.bf16sub
libc.src.math.bf16subf
libc.src.math.bf16subl
libc.src.math.canonicalizebf16
libc.src.math.ceilbf16
libc.src.math.copysignbf16
libc.src.math.fabsbf16
libc.src.math.fdimbf16
libc.src.math.floorbf16
libc.src.math.fmaxbf16
libc.src.math.fmaximumbf16
Expand All @@ -929,6 +932,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.iscanonicalbf16
libc.src.math.issignalingbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.llrintbf16
Expand All @@ -948,9 +953,13 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.scalblnbf16
libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.totalorderbf16
libc.src.math.totalordermagbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)
Expand Down
Loading
Loading