[libc-commits] [libc] [libc][math] Add missing math functions dfmal, dfmaf128 to math.yaml (PR #199485)

[Arnav Mundada via libc-commits]

https://github.com/ArnavM21git created https://github.com/llvm/llvm-project/pull/199485

Part of https://github.com/llvm/llvm-project/issues/199266

Added missing math function entries to `libc/include/math.yaml`:

-  dfmaf128
-  dfmal

@Sukumarsawant


>From c6a19f597b041ce34efe88aaf524b048adcc33f3 Mon Sep 17 00:00:00 2001
From: Arnav Mundada <arnav.mundada at vit.edu.in>
Date: Mon, 25 May 2026 11:44:59 +0530
Subject: [PATCH] Add missing dfmaf128 and dfmal functions to math.yaml

---
 libc/include/math.yaml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/libc/include/math.yaml b/libc/include/math.yaml
index b87044e1f1533..78b393bb7edfc 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
+    arguments:
+      - type: float128
+      - type: float128
+      - type: float128
+    guard: LIBC_TYPES_HAS_FLOAT128
+  - name: dfmal
+    standards:
+      - stdc
+    return_type: double
+    arguments:
+      - type: long double
+      - type: long double
+      - type: long double
   - name: dmulf128
     standards:
       - llvm_libc_ext