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diff --git a/clang/test/CodeGen/x86_32-arguments-nommx.c b/clang/test/CodeGen/x86_32-arguments-nommx.c
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+// RUN: %clang_cc1 -target-feature -mmx -target-feature +sse2 -triple i686-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
+
+// no-mmx should put mmx into memory
+typedef int __attribute__((vector_size (8))) i32v2;
+int a(i32v2 x) { return x[0]; }
+// CHECK: define i32 @a(i64 %x.coerce)
+
+// but SSE2 vectors should still go into an SSE2 register
+typedef int __attribute__((vector_size (16))) i32v4;
+int b(i32v4 x) { return x[0]; }
+// CHECK: define i32 @b(<4 x i32> %x)