[X86] Add -fexperimental-new-constant-interpreter test coverage to the FMA/FMA4 constexpr test files (llvm#155859)

Partial fix for llvm#155814

Author: RKSimon

clang/test/CodeGen/X86/fma-builtins.c

@@ -1,7 +1,12 @@
-// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - | FileCheck %s
-// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - | FileCheck %s
-// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - | FileCheck %s
-// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror | FileCheck %s
+
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
 
 
 #include <immintrin.h>

clang/test/CodeGen/X86/fma4-builtins.c

@@ -3,6 +3,11 @@
 // RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror | FileCheck %s
 // RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror | FileCheck %s
 
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c++ -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +fma4 -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s
+
 
 #include <x86intrin.h>
 #include "builtin_test_helpers.h"