[clang] [Headers][X86] Ensure the CONSTEXPR attributes are undefined at the end of the vpopcntdq headers (PR #152663)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Simon Pilgrim (RKSimon)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/152663.diff


2 Files Affected:

- (modified) clang/lib/Headers/avx512vpopcntdqintrin.h (+1) 
- (modified) clang/lib/Headers/avx512vpopcntdqvlintrin.h (+2) 


``````````diff
diff --git a/clang/lib/Headers/avx512vpopcntdqintrin.h b/clang/lib/Headers/avx512vpopcntdqintrin.h
index e24c2c5e1bcd9..79fc6e140c616 100644
--- a/clang/lib/Headers/avx512vpopcntdqintrin.h
+++ b/clang/lib/Headers/avx512vpopcntdqintrin.h
@@ -60,5 +60,6 @@ _mm512_maskz_popcnt_epi32(__mmask16 __U, __m512i __A) {
 }
 
 #undef __DEFAULT_FN_ATTRS
+#undef __DEFAULT_FN_ATTRS_CONSTEXPR
 
 #endif
diff --git a/clang/lib/Headers/avx512vpopcntdqvlintrin.h b/clang/lib/Headers/avx512vpopcntdqvlintrin.h
index b6c819b0cb85e..d14cb1eb31f14 100644
--- a/clang/lib/Headers/avx512vpopcntdqvlintrin.h
+++ b/clang/lib/Headers/avx512vpopcntdqvlintrin.h
@@ -99,5 +99,7 @@ _mm256_maskz_popcnt_epi32(__mmask8 __U, __m256i __A) {
 
 #undef __DEFAULT_FN_ATTRS128
 #undef __DEFAULT_FN_ATTRS256
+#undef __DEFAULT_FN_ATTRS128_CONSTEXPR
+#undef __DEFAULT_FN_ATTRS256_CONSTEXPR
 
 #endif

``````````

</details>


https://github.com/llvm/llvm-project/pull/152663