[libc-commits] [libc] Libc add missing math yaml functions (PR #199340)

via libc-commits libc-commits at lists.llvm.org
Sat May 23 03:54:03 PDT 2026


llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Arnav Mundada (ArnavM21git)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/199340.diff


1 Files Affected:

- (modified) libc/include/math.yaml (+35) 


``````````diff
diff --git a/libc/include/math.yaml b/libc/include/math.yaml
index 36ff380a1b305..bfe2790bafbed 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -359,6 +359,23 @@ functions:
     arguments:
       - type: long double
       - type: long double
+  - name: dfmaf128
+    standards:
+      - stdc
+    return_type: double
+    arguements:
+      - type: float128
+      - type: float128
+      - type: float128
+    guard: LIBC_TYPES_HAS_FLOAT128
+  - name: dfmal
+    standards:
+      - stdc
+    return_type: double
+    arguements:
+      - type: long double
+      - type: long double
+      - type: long double
   - name: dmulf128
     standards:
       - llvm_libc_ext
@@ -402,6 +419,12 @@ functions:
     arguments:
       - type: long double
       - type: long double
+  - name: erf
+    standards:
+      - stdc
+    return_type: double
+    arguements:
+      - type: double
   - name: erff
     standards:
       - stdc
@@ -2698,6 +2721,18 @@ functions:
     arguments:
       - type: _Float16
     guard: LIBC_TYPES_HAS_FLOAT16
+  - name: tgamma
+    standards:
+      - stdc
+    return_type: double
+    arguements:
+      - type: double
+  - name: tgammaf
+    standards:
+      - stdc
+    return_type: float
+    arguements:
+      - type: float
   - name: totalorder
     standards:
       - stdc

``````````

</details>


https://github.com/llvm/llvm-project/pull/199340


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