[clang][x86] Update MMX intrinsic tests for both C/C++ and 32/64-bit targets

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

diff --git a/clang/test/CodeGen/X86/mmx-builtins.c b/clang/test/CodeGen/X86/mmx-builtins.c
index 495ae7e..280faa0 100644
--- a/clang/test/CodeGen/X86/mmx-builtins.c
+++ b/clang/test/CodeGen/X86/mmx-builtins.c
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +ssse3 -emit-llvm -o - -Wall -Werror | FileCheck %s --implicit-check-not=x86mmx
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +ssse3 -emit-llvm -o - -Wall -Werror | FileCheck %s --implicit-check-not=x86mmx
 // RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +ssse3 -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --implicit-check-not=x86mmx
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +ssse3 -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --implicit-check-not=x86mmx
 
 
 #include <immintrin.h>