[clang] [clang][x86] Fix `_mm512_popcnt_epi64` constexpr test (PR #152478)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Pedro Lobo (pedroclobo)

<details>
<summary>Changes</summary>

The previous test incorrectly assumed 32-bit integers, leading to incorrect bit counts. This change updates the test result to assume 64-bit integers.

---
Full diff: https://github.com/llvm/llvm-project/pull/152478.diff


1 Files Affected:

- (modified) clang/test/CodeGen/X86/avx512vpopcntdq-builtins.c (+1-1) 


``````````diff
diff --git a/clang/test/CodeGen/X86/avx512vpopcntdq-builtins.c b/clang/test/CodeGen/X86/avx512vpopcntdq-builtins.c
index ca8f5e482cc56..f4de0f17caacf 100644
--- a/clang/test/CodeGen/X86/avx512vpopcntdq-builtins.c
+++ b/clang/test/CodeGen/X86/avx512vpopcntdq-builtins.c
@@ -8,7 +8,7 @@ __m512i test_mm512_popcnt_epi64(__m512i __A) {
   // CHECK: @llvm.ctpop.v8i64
   return _mm512_popcnt_epi64(__A);
 }
-TEST_CONSTEXPR(match_v8di(_mm512_popcnt_epi64((__m512i)(__v8di){+5, -3, -10, +8, 0, -256, +256, -128}), 2, 31, 30, 1, 0, 24, 1, 25));
+TEST_CONSTEXPR(match_v8di(_mm512_popcnt_epi64((__m512i)(__v8di){+5, -3, -10, +8, 0, -256, +256, -128}), 2, 63, 62, 1, 0, 56, 1, 57));
 
 __m512i test_mm512_mask_popcnt_epi64(__m512i __W, __mmask8 __U, __m512i __A) {
   // CHECK-LABEL: @test_mm512_mask_popcnt_epi64

``````````

</details>


https://github.com/llvm/llvm-project/pull/152478