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[libc][math] Add scalbln{,f,l,f128} math functions (#102219)
Co-authored-by: OverMighty <[email protected]>
1 parent 2b592b1 commit d0fe470

27 files changed

+434
-1
lines changed

‎libc/config/baremetal/arm/entrypoints.txt

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@@ -394,6 +394,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.roundevenl
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libc.src.math.roundf
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libc.src.math.roundl
397+
libc.src.math.scalbln
398+
libc.src.math.scalblnf
399+
libc.src.math.scalblnl
397400
libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl

‎libc/config/baremetal/riscv/entrypoints.txt

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@@ -389,6 +389,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.roundevenl
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libc.src.math.roundf
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libc.src.math.roundl
392+
libc.src.math.scalbln
393+
libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl

‎libc/config/darwin/arm/entrypoints.txt

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@@ -248,6 +248,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.round
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libc.src.math.roundf
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libc.src.math.roundl
251+
libc.src.math.scalbln
252+
libc.src.math.scalblnf
253+
libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl

‎libc/config/gpu/entrypoints.txt

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@@ -336,6 +336,8 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.rintf
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libc.src.math.round
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libc.src.math.roundf
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.sin

‎libc/config/linux/aarch64/entrypoints.txt

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@@ -542,6 +542,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.roundevenl
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libc.src.math.roundf
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libc.src.math.roundl
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl
@@ -729,6 +732,7 @@ if(LIBC_TYPES_HAS_FLOAT128)
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libc.src.math.rintf128
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libc.src.math.roundevenf128
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libc.src.math.roundf128
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libc.src.math.scalblnf128
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libc.src.math.scalbnf128
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libc.src.math.setpayloadf128
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libc.src.math.setpayloadsigf128

‎libc/config/linux/arm/entrypoints.txt

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@@ -371,6 +371,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.round
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libc.src.math.roundf
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libc.src.math.roundl
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl

‎libc/config/linux/riscv/entrypoints.txt

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@@ -545,6 +545,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.roundevenl
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libc.src.math.roundf
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libc.src.math.roundl
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl
@@ -636,6 +639,7 @@ if(LIBC_TYPES_HAS_FLOAT128)
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libc.src.math.rintf128
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libc.src.math.roundevenf128
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libc.src.math.roundf128
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libc.src.math.scalblnf128
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libc.src.math.scalbnf128
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libc.src.math.setpayloadf128
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libc.src.math.setpayloadsigf128

‎libc/config/linux/x86_64/entrypoints.txt

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@@ -545,6 +545,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.roundevenl
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libc.src.math.roundf
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libc.src.math.roundl
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl
@@ -725,6 +728,7 @@ if(LIBC_TYPES_HAS_FLOAT128)
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libc.src.math.rintf128
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libc.src.math.roundevenf128
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libc.src.math.roundf128
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libc.src.math.scalblnf128
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libc.src.math.scalbnf128
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libc.src.math.setpayloadf128
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libc.src.math.setpayloadsigf128

‎libc/config/windows/entrypoints.txt

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@@ -264,6 +264,9 @@ set(TARGET_LIBM_ENTRYPOINTS
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libc.src.math.round
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libc.src.math.roundf
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libc.src.math.roundl
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libc.src.math.scalbln
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libc.src.math.scalblnf
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libc.src.math.scalblnl
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libc.src.math.scalbn
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libc.src.math.scalbnf
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libc.src.math.scalbnl

‎libc/docs/math/index.rst

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@@ -220,7 +220,7 @@ Basic Operations
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| roundeven | |check| | |check| | |check| | |check| | |check| | 7.12.9.8 | F.10.6.8 |
222222
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
223-
| scalbln | | | | |check| | | 7.12.6.19 | F.10.3.19 |
223+
| scalbln | |check| | |check| | |check| | |check| | |check| | 7.12.6.19 | F.10.3.19 |
224224
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+
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| scalbn | |check| | |check| | |check| | |check| | |check| | 7.12.6.19 | F.10.3.19 |
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+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+----------------------------+

‎libc/newhdrgen/yaml/math.yaml

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@@ -2313,6 +2313,43 @@ functions:
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- type: int
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- type: unsigned int
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guard: LIBC_TYPES_HAS_FLOAT128
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- name: scalbln
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standards:
2318+
- stdc
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return_type: double
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arguments:
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- type: double
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- type: long
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- name: scalblnl
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standards:
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- stdc
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return_type: long double
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arguments:
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- type: long double
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- type: long
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- name: scalblnf
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standards:
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- stdc
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return_type: float
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arguments:
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- type: float
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- type: long
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- name: scalblnf16
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standards:
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- stdc
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return_type: float16
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arguments:
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- type: float16
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- type: long
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guard: LIBC_TYPES_HAS_FLOAT16
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- name: scalblnf128
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standards:
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- stdc
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return_type: float128
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arguments:
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- type: float128
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- type: long
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guard: LIBC_TYPES_HAS_FLOAT128
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- name: lgamma
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standards:
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- stdc

‎libc/spec/stdc.td

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@@ -717,7 +717,11 @@ def StdC : StandardSpec<"stdc"> {
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FunctionSpec<"asinhf", RetValSpec<FloatType>, [ArgSpec<FloatType>]>,
718718
FunctionSpec<"atanhf", RetValSpec<FloatType>, [ArgSpec<FloatType>]>,
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FunctionSpec<"scalbln", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<LongType>]>,
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FunctionSpec<"scalblnf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<LongType>]>,
722+
FunctionSpec<"scalblnl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongType>]>,
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GuardedFunctionSpec<"scalblnf16", RetValSpec<Float16Type>, [ArgSpec<Float16Type>, ArgSpec<LongType>], "LIBC_TYPES_HAS_FLOAT16">,
724+
GuardedFunctionSpec<"scalblnf128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<LongType>], "LIBC_TYPES_HAS_FLOAT128">,
721725

722726
FunctionSpec<"scalbn", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<IntType>]>,
723727
FunctionSpec<"scalbnf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<IntType>]>,

‎libc/src/math/CMakeLists.txt

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@@ -427,7 +427,11 @@ add_math_entrypoint_object(roundevenl)
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add_math_entrypoint_object(roundevenf16)
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add_math_entrypoint_object(roundevenf128)
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add_math_entrypoint_object(scalbln)
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add_math_entrypoint_object(scalblnf)
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add_math_entrypoint_object(scalblnl)
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add_math_entrypoint_object(scalblnf16)
434+
add_math_entrypoint_object(scalblnf128)
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add_math_entrypoint_object(scalbn)
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add_math_entrypoint_object(scalbnf)

‎libc/src/math/generic/CMakeLists.txt

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@@ -4185,6 +4185,46 @@ add_entrypoint_object(
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libc.src.__support.macros.optimization
41864186
)
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add_entrypoint_object(
4190+
scalbln
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SRCS
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scalbln.cpp
4193+
HDRS
4194+
../scalbln.h
4195+
DEPENDS
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libc.hdr.float_macros
4197+
libc.src.__support.FPUtil.manipulation_functions
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COMPILE_OPTIONS
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-O3
4200+
)
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add_entrypoint_object(
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scalblnf
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SRCS
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scalblnf.cpp
4206+
HDRS
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../scalblnf.h
4208+
DEPENDS
4209+
libc.hdr.float_macros
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libc.src.__support.FPUtil.manipulation_functions
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COMPILE_OPTIONS
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-O3
4213+
)
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add_entrypoint_object(
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scalblnl
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SRCS
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scalblnl.cpp
4219+
HDRS
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../scalblnl.h
4221+
DEPENDS
4222+
libc.hdr.float_macros
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libc.src.__support.FPUtil.manipulation_functions
4224+
COMPILE_OPTIONS
4225+
-O3
4226+
)
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41884228
add_entrypoint_object(
41894229
scalblnf16
41904230
SRCS
@@ -4199,6 +4239,20 @@ add_entrypoint_object(
41994239
-O3
42004240
)
42014241

4242+
add_entrypoint_object(
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scalblnf128
4244+
SRCS
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scalblnf128.cpp
4246+
HDRS
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../scalblnf128.h
4248+
DEPENDS
4249+
libc.hdr.float_macros
4250+
libc.src.__support.macros.properties.types
4251+
libc.src.__support.FPUtil.manipulation_functions
4252+
COMPILE_OPTIONS
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-O3
4254+
)
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add_entrypoint_object(
42034257
scalbn
42044258
SRCS

‎libc/src/math/generic/scalbln.cpp

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//===-- Implementation of scalbln function --------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4+
// See https://llvm.org/LICENSE.txt for license information.
5+
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
7+
//===----------------------------------------------------------------------===//
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#include "src/math/scalbln.h"
10+
#include "hdr/float_macros.h"
11+
#include "src/__support/FPUtil/ManipulationFunctions.h"
12+
#include "src/__support/common.h"
13+
#include "src/__support/macros/config.h"
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#if FLT_RADIX != 2
16+
#error "FLT_RADIX != 2 is not supported."
17+
#endif
18+
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namespace LIBC_NAMESPACE_DECL {
20+
21+
LLVM_LIBC_FUNCTION(double, scalbln, (double x, long n)) {
22+
return fputil::ldexp(x, n);
23+
}
24+
25+
} // namespace LIBC_NAMESPACE_DECL

‎libc/src/math/generic/scalblnf.cpp

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//===-- Implementation of scalblnf function -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
7+
//===----------------------------------------------------------------------===//
8+
9+
#include "src/math/scalblnf.h"
10+
#include "hdr/float_macros.h"
11+
#include "src/__support/FPUtil/ManipulationFunctions.h"
12+
#include "src/__support/common.h"
13+
#include "src/__support/macros/config.h"
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15+
#if FLT_RADIX != 2
16+
#error "FLT_RADIX != 2 is not supported."
17+
#endif
18+
19+
namespace LIBC_NAMESPACE_DECL {
20+
21+
LLVM_LIBC_FUNCTION(float, scalblnf, (float x, long n)) {
22+
return fputil::ldexp(x, n);
23+
}
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25+
} // namespace LIBC_NAMESPACE_DECL

‎libc/src/math/generic/scalblnf128.cpp

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//===-- Implementation of scalblnf128 function ----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4+
// See https://llvm.org/LICENSE.txt for license information.
5+
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6+
//
7+
//===----------------------------------------------------------------------===//
8+
9+
#include "src/math/scalblnf128.h"
10+
#include "hdr/float_macros.h"
11+
#include "src/__support/FPUtil/ManipulationFunctions.h"
12+
#include "src/__support/common.h"
13+
#include "src/__support/macros/config.h"
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15+
#if FLT_RADIX != 2
16+
#error "FLT_RADIX != 2 is not supported."
17+
#endif
18+
19+
namespace LIBC_NAMESPACE_DECL {
20+
21+
LLVM_LIBC_FUNCTION(float128, scalblnf128, (float128 x, long n)) {
22+
return fputil::ldexp(x, n);
23+
}
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25+
} // namespace LIBC_NAMESPACE_DECL

‎libc/src/math/generic/scalblnl.cpp

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@@ -0,0 +1,25 @@
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//===-- Implementation of scalblnl function -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4+
// See https://llvm.org/LICENSE.txt for license information.
5+
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6+
//
7+
//===----------------------------------------------------------------------===//
8+
9+
#include "src/math/scalblnl.h"
10+
#include "hdr/float_macros.h"
11+
#include "src/__support/FPUtil/ManipulationFunctions.h"
12+
#include "src/__support/common.h"
13+
#include "src/__support/macros/config.h"
14+
15+
#if FLT_RADIX != 2
16+
#error "FLT_RADIX != 2 is not supported."
17+
#endif
18+
19+
namespace LIBC_NAMESPACE_DECL {
20+
21+
LLVM_LIBC_FUNCTION(long double, scalblnl, (long double x, long n)) {
22+
return fputil::ldexp(x, n);
23+
}
24+
25+
} // namespace LIBC_NAMESPACE_DECL

‎libc/src/math/scalbln.h

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@@ -0,0 +1,20 @@
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//===-- Implementation header for scalbln -----------------------*- C++ -*-===//
2+
//
3+
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4+
// See https://llvm.org/LICENSE.txt for license information.
5+
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6+
//
7+
//===----------------------------------------------------------------------===//
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9+
#ifndef LLVM_LIBC_SRC_MATH_SCALBLN_H
10+
#define LLVM_LIBC_SRC_MATH_SCALBLN_H
11+
12+
#include "src/__support/macros/config.h"
13+
14+
namespace LIBC_NAMESPACE_DECL {
15+
16+
double scalbln(double x, long n);
17+
18+
} // namespace LIBC_NAMESPACE_DECL
19+
20+
#endif // LLVM_LIBC_SRC_MATH_SCALBLN_H

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