[libc-commits] [libc] [libc][math] Implement double precision acos correctly rounded for all rounding modes. (PR #138308)

[via libc-commits]

================
@@ -4051,6 +4051,16 @@ add_fp_unittest(
     libc.src.__support.FPUtil.fp_bits
 )
 
+add_fp_unittest(
+  acos_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    acos_test.cpp
+  DEPENDS
+    libc.src.math.acos
----------------
overmighty wrote:

```suggestion
  DEPENDS
    libc.hdr.fenv_macros
    libc.src.math.acos
```

https://github.com/llvm/llvm-project/pull/138308