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[libc][math][c++23] Add {frexp,ilogb,ldexp,llogb,logb}bf16 math functions #154427

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Merged
merged 26 commits into from
Aug 25, 2025
Merged

[libc][math][c++23] Add {frexp,ilogb,ldexp,llogb,logb}bf16 math functions #154427

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b58785d
feat: implement {,u}fromfp{,x}bf16 math functions
krishna2803 Aug 16, 2025
0a2b527
chore: add tests for {,u}fromfp{,x}bf16 math functions
krishna2803 Aug 16, 2025
baaf0e0
chore: update entrypoints
krishna2803 Aug 16, 2025
733f4f1
chore: update docs
krishna2803 Aug 16, 2025
4a80312
feat: implement next{after,down,toward,up}bf16 math functions
krishna2803 Aug 17, 2025
446e637
chore: add smoke tests for next{after,down,toward,up}bf16 math functions
krishna2803 Aug 17, 2025
a98b928
chore: update entrypoints
krishna2803 Aug 17, 2025
12f1923
docs: add next{after,down,toward,up}bf16 math functions
krishna2803 Aug 17, 2025
6f8d84d
feat: implement {get,set}payloadbf16 and setpayloadsigbf16 math funct…
krishna2803 Aug 17, 2025
c8f4380
chore: implement smoke tests for {get,set}payloadbf16 and setpayloads…
krishna2803 Aug 17, 2025
8ea9354
fix: add correct static_cast for fputil::getpload for bfloat16
krishna2803 Aug 17, 2025
fc2b6eb
chore: update entrypoints
krishna2803 Aug 17, 2025
70e4463
docs: add {get,set}payloadbf16 and setpayloadsigbf16 math functions
krishna2803 Aug 17, 2025
ea9625e
feat: implement nanbf16 math function
krishna2803 Aug 17, 2025
ae0e616
chore: add smoke tests for nanbf16 math function
krishna2803 Aug 17, 2025
27364c5
chore: update entrypoints
krishna2803 Aug 17, 2025
250cfea
docs: add nanbf16
krishna2803 Aug 17, 2025
832bbc6
feat: implement {frexp,ilogb,ldexp,llogb,logb}bf16 math functions
krishna2803 Aug 19, 2025
a08faab
chore: add smoke tests for {frexp,ilogb,ldexp,llogb,logb}bf16 math fu…
krishna2803 Aug 19, 2025
5fb2a5c
chore: update entrypoints
krishna2803 Aug 19, 2025
5f0ab92
fix: infinite recursion and tests
krishna2803 Aug 19, 2025
49dc65d
docs: add {frexp,ilogb,ldexp,llogb,logb}bf16 math functions
krishna2803 Aug 19, 2025
2bf7920
fix: add cpp::min in LdExpTest.h
krishna2803 Aug 20, 2025
92cdc99
merge: branch 'main' into users/krishna2803/frexpbf16
krishna2803 Aug 24, 2025
3c062b9
refactor: remove redundant if-else
krishna2803 Aug 24, 2025
dc0e3d7
merge: branch 'main' into users/krishna2803/frexpbf16
krishna2803 Aug 24, 2025
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17 changes: 17 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 @@ -785,9 +785,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
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17 changes: 17 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 @@ -788,9 +788,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
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17 changes: 17 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 @@ -788,9 +788,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
Expand Down
17 changes: 17 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 @@ -618,9 +618,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
Expand Down
18 changes: 17 additions & 1 deletion libc/config/darwin/x86_64/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -261,10 +261,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16

libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

set(TARGET_LLVMLIBC_ENTRYPOINTS
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17 changes: 17 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 @@ -644,9 +644,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

set(TARGET_LLVMLIBC_ENTRYPOINTS
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17 changes: 17 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 @@ -645,9 +645,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

set(TARGET_LLVMLIBC_ENTRYPOINTS
Expand Down
17 changes: 17 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 @@ -872,9 +872,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
Expand Down
17 changes: 17 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 @@ -488,9 +488,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

set(TARGET_LLVMLIBC_ENTRYPOINTS
Expand Down
17 changes: 17 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 @@ -891,9 +891,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
Expand Down
17 changes: 17 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 @@ -923,9 +923,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

if(LIBC_TYPES_HAS_FLOAT128)
Expand Down
17 changes: 17 additions & 0 deletions libc/config/windows/entrypoints.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -334,9 +334,26 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.fminimum_magbf16
libc.src.math.fminimum_mag_numbf16
libc.src.math.fminimum_numbf16
libc.src.math.frexpbf16
libc.src.math.fromfpbf16
libc.src.math.fromfpxbf16
libc.src.math.getpayloadbf16
libc.src.math.ilogbbf16
libc.src.math.ldexpbf16
libc.src.math.llogbbf16
libc.src.math.logbbf16
libc.src.math.nanbf16
libc.src.math.nextafterbf16
libc.src.math.nextdownbf16
libc.src.math.nexttowardbf16
libc.src.math.nextupbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
libc.src.math.ufromfpbf16
libc.src.math.ufromfpxbf16
)

set(TARGET_LLVMLIBC_ENTRYPOINTS
Expand Down
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