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

[Arnav Mundada via libc-commits]

https://github.com/ArnavM21git updated https://github.com/llvm/llvm-project/pull/199340

>From cf8f8c6eb89601f032968ce4cd5e7eb175385751 Mon Sep 17 00:00:00 2001
From: Arnav Mundada <arnav.mundada at vit.edu.in>
Date: Sat, 23 May 2026 16:14:24 +0530
Subject: [PATCH] [libc][math] Add missing gamma, error, and fma functions to
 math.yaml

---
 libc/include/math.yaml | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

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