[libc-commits] [libc] [libc][math] Add missing functions from issignaling family to math.yaml (PR #199357)

[Skandan C Y via libc-commits]

https://github.com/skandanyal updated https://github.com/llvm/llvm-project/pull/199357

>From 44041023cbd8e48bf0088feb4407b86deede749c Mon Sep 17 00:00:00 2001
From: skandanyal <165555723+skandanyal at users.noreply.github.com>
Date: Sat, 23 May 2026 20:23:27 +0530
Subject: [PATCH 1/3] [libc][math] Add missing functions from issignaling
 family to math.yaml

---
 libc/include/math.yaml | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/libc/include/math.yaml b/libc/include/math.yaml
index b87044e1f1533..837e8f745d697 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -2895,3 +2895,42 @@ functions:
       - type: long double
       - type: int
       - type: unsigned int
+  - name: issignaling
+    standards:
+      - stdc
+    return_type: double
+    arguments:
+      - type: int
+  - name: issignalingbf16
+    standards:
+      - stdc
+    return_type: _Float16
+    arguments:
+      - type: int
+    guard: LIBC_TYPES_HAS_FLOAT16
+  - name: issignalingf
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: float
+  - name: issignalingf16
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: _Float
+    guard: LIBC_TYPES_HAS_FLOAT16
+  - name: issignalingf128
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: float128
+    guard: LIBC_TYPES_HAS_FLOAT128
+  - name: issignalingl
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: long double
\ No newline at end of file

>From aed08e2f973e01aeb09a50b6104b779a27760312 Mon Sep 17 00:00:00 2001
From: "Skandan C.Y" <165555723+skandanyal at users.noreply.github.com>
Date: Sun, 24 May 2026 14:15:42 +0530
Subject: [PATCH 2/3] [libc][math] Implemented all suggested corrections in
 math.yaml

---
 libc/include/math.yaml | 67 ++++++++++++++++++------------------------
 1 file changed, 28 insertions(+), 39 deletions(-)

diff --git a/libc/include/math.yaml b/libc/include/math.yaml
index 837e8f745d697..3cf905a60ef11 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -1609,10 +1609,38 @@ functions:
   - name: isnanf16
     standards:
       - bsd
+  - name: issignaling
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: double
+  - name: issignalingf
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: float
+  - name: issignalingf16
+    standards:
+      - stdc
     return_type: int
     arguments:
       - type: _Float16
     guard: LIBC_TYPES_HAS_FLOAT16
+  - name: issignalingf128
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: float128
+    guard: LIBC_TYPES_HAS_FLOAT128
+  - name: issignalingl
+    standards:
+      - stdc
+    return_type: int
+    arguments:
+      - type: long double
   - name: ldexp
     standards:
       - stdc
@@ -2895,42 +2923,3 @@ functions:
       - type: long double
       - type: int
       - type: unsigned int
-  - name: issignaling
-    standards:
-      - stdc
-    return_type: double
-    arguments:
-      - type: int
-  - name: issignalingbf16
-    standards:
-      - stdc
-    return_type: _Float16
-    arguments:
-      - type: int
-    guard: LIBC_TYPES_HAS_FLOAT16
-  - name: issignalingf
-    standards:
-      - stdc
-    return_type: int
-    arguments:
-      - type: float
-  - name: issignalingf16
-    standards:
-      - stdc
-    return_type: int
-    arguments:
-      - type: _Float
-    guard: LIBC_TYPES_HAS_FLOAT16
-  - name: issignalingf128
-    standards:
-      - stdc
-    return_type: int
-    arguments:
-      - type: float128
-    guard: LIBC_TYPES_HAS_FLOAT128
-  - name: issignalingl
-    standards:
-      - stdc
-    return_type: int
-    arguments:
-      - type: long double
\ No newline at end of file

>From 9e5fea36e3e3a58a96932f876337873c91e9ebf9 Mon Sep 17 00:00:00 2001
From: "Skandan C.Y" <165555723+skandanyal at users.noreply.github.com>
Date: Tue, 26 May 2026 16:29:11 +0530
Subject: [PATCH 3/3] [libc][math] Implemented all suggested corrections in
 math.yaml

---
 libc/include/math.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libc/include/math.yaml b/libc/include/math.yaml
index 3cf905a60ef11..04bb90f4b0b18 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -1609,6 +1609,9 @@ functions:
   - name: isnanf16
     standards:
       - bsd
+    return_type: int
+    arguments:
+      - type: float16
   - name: issignaling
     standards:
       - stdc