[clang] [X86][Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - Allow AVX/AVX512 IFMA madd52 intrinsics to be used in constexpr (PR #161056)

[Simon Pilgrim via cfe-commits]

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@@ -8,53 +8,221 @@
 // RUN: %clang_cc1 -x c++ -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avxifma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
 // RUN: %clang_cc1 -x c++ -ffreestanding %s -triple=i386-apple-darwin -target-feature +avxifma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
 
-
 #include <immintrin.h>
+#include "builtin_test_helpers.h"
+
 
+__attribute__((target("avx512ifma,avx512vl")))
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RKSimon wrote:

The fact that it didn't require this beforehand is very suspicous but I can't see the mistake right now @FreddyLeaf @phoebewang any ideas?

https://github.com/llvm/llvm-project/pull/161056