[libc-commits] [libc] 9dc66a6 - [libc] Add half-precision math functions to the math header (#155060)

[via libc-commits]

Author: Leandro Lacerda
Date: 2025-08-22T22:06:12-05:00
New Revision: 9dc66a631e962d85df0db43784028388f77d3fef

URL: https://github.com/llvm/llvm-project/commit/9dc66a631e962d85df0db43784028388f77d3fef
DIFF: https://github.com/llvm/llvm-project/commit/9dc66a631e962d85df0db43784028388f77d3fef.diff

LOG: [libc] Add half-precision math functions to the math header (#155060)

This patch adds the `exp10f16`, `exp2f16`, `expf16`, and `expm1f16` math
functions to the `math.h` header.

Added: 
    

Modified: 
    libc/include/math.yaml

Removed: 
    


################################################################################
diff  --git a/libc/include/math.yaml b/libc/include/math.yaml
index 60e6265eece75..6f48e0e9fd35f 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -370,6 +370,13 @@ functions:
     return_type: float
     arguments:
       - type: float
+  - name: exp10f16
+    standards:
+      - stdc
+    return_type: _Float16
+    arguments:
+      - type: _Float16
+    guard: LIBC_TYPES_HAS_FLOAT16
   - name: exp10m1f
     standards:
       - stdc
@@ -395,6 +402,13 @@ functions:
     return_type: float
     arguments:
       - type: float
+  - name: exp2f16
+    standards:
+      - stdc
+    return_type: _Float16
+    arguments:
+      - type: _Float16
+    guard: LIBC_TYPES_HAS_FLOAT16
   - name: exp2m1f
     standards:
       - stdc
@@ -414,6 +428,13 @@ functions:
     return_type: float
     arguments:
       - type: float
+  - name: expf16
+    standards:
+      - stdc
+    return_type: _Float16
+    arguments:
+      - type: _Float16
+    guard: LIBC_TYPES_HAS_FLOAT16
   - name: expm1
     standards:
       - stdc
@@ -426,6 +447,13 @@ functions:
     return_type: float
     arguments:
       - type: float
+  - name: expm1f16
+    standards:
+      - stdc
+    return_type: _Float16
+    arguments:
+      - type: _Float16
+    guard: LIBC_TYPES_HAS_FLOAT16
   - name: f16add
     standards:
       - llvm_libc_ext