[libc] [llvm] [libc][math] Improve atanf performance. (PR #85463)

[via llvm-commits]

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``````````bash
git-clang-format --diff f75d164eeaf407b21ec6b2cff4bcc3ad2003af61 2e5993fc5ad61b81c3680bfed551f08824d77d73 -- libc/src/math/generic/atanf.cpp libc/src/math/generic/inv_trigf_utils.cpp libc/src/math/generic/inv_trigf_utils.h libc/test/src/math/exhaustive/atanf_test.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/libc/src/math/generic/atanf.cpp b/libc/src/math/generic/atanf.cpp
index 2ed5135c66..cf0dbc1da6 100644
--- a/libc/src/math/generic/atanf.cpp
+++ b/libc/src/math/generic/atanf.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/math/atanf.h"
+#include "inv_trigf_utils.h"
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/FPUtil/PolyEval.h"
 #include "src/__support/FPUtil/except_value_utils.h"
@@ -14,7 +15,6 @@
 #include "src/__support/FPUtil/nearest_integer.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/macros/optimization.h" // LIBC_UNLIKELY
-#include "inv_trigf_utils.h"
 
 namespace LIBC_NAMESPACE {
 

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https://github.com/llvm/llvm-project/pull/85463