[libc-commits] [libc] cd19fba - [libc] Enable float math functions on the GPU (#151841)

[via libc-commits]

Author: Leandro Lacerda
Date: 2025-08-02T22:13:04-05:00
New Revision: cd19fbad093f2834bfafa6ee1535a48c8d453077

URL: https://github.com/llvm/llvm-project/commit/cd19fbad093f2834bfafa6ee1535a48c8d453077
DIFF: https://github.com/llvm/llvm-project/commit/cd19fbad093f2834bfafa6ee1535a48c8d453077.diff

LOG: [libc] Enable float math functions on the GPU (#151841)

This patch adds the `tanpif` math functions to the GPU build. It also
adds the `cospif` and `sinpif` math functions to the `math.h` header.

Added: 
    

Modified: 
    libc/config/gpu/amdgpu/entrypoints.txt
    libc/config/gpu/nvptx/entrypoints.txt
    libc/include/math.yaml

Removed: 
    


################################################################################
diff  --git a/libc/config/gpu/amdgpu/entrypoints.txt b/libc/config/gpu/amdgpu/entrypoints.txt
index e39819dd85b72..291a2d01db5b6 100644
--- a/libc/config/gpu/amdgpu/entrypoints.txt
+++ b/libc/config/gpu/amdgpu/entrypoints.txt
@@ -489,6 +489,7 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.tan
     libc.src.math.tanf
     libc.src.math.tanhf
+    libc.src.math.tanpif
     libc.src.math.tgamma
     libc.src.math.tgammaf
     libc.src.math.totalorder

diff  --git a/libc/config/gpu/nvptx/entrypoints.txt b/libc/config/gpu/nvptx/entrypoints.txt
index 26e3b1547c98a..55b27e69d5571 100644
--- a/libc/config/gpu/nvptx/entrypoints.txt
+++ b/libc/config/gpu/nvptx/entrypoints.txt
@@ -490,6 +490,7 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.tan
     libc.src.math.tanf
     libc.src.math.tanhf
+    libc.src.math.tanpif
     libc.src.math.tgamma
     libc.src.math.tgammaf
     libc.src.math.totalorder

diff  --git a/libc/include/math.yaml b/libc/include/math.yaml
index 007be235f4380..e8ac7ee5033db 100644
--- a/libc/include/math.yaml
+++ b/libc/include/math.yaml
@@ -283,6 +283,12 @@ functions:
     return_type: float
     arguments:
       - type: float
+  - name: cospif
+    standards:
+      - stdc
+    return_type: float
+    arguments:
+      - type: float
   - name: cospif16
     standards:
       - stdc
@@ -2453,6 +2459,12 @@ functions:
     arguments:
       - type: _Float16
     guard: LIBC_TYPES_HAS_FLOAT16
+  - name: sinpif
+    standards:
+      - stdc
+    return_type: float
+    arguments:
+      - type: float
   - name: sinpif16
     standards:
       - stdc