// Vector types are always returned in XMM0. If the target doesn't have XMM0,
// it won't have vector types.
- CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToReg<[XMM0]>>
+ CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToReg<[XMM0]>>,
+
+ // MMX vector types are always returned in MM0. If the target doesn't have
+ // MM0, it doesn't support these vector types.
+ CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToReg<[MM0]>>
]>;
// X86-32 C return-value convention.
CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>,
// Vectors get 16-byte stack slots that are 16-byte aligned.
- CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
- CCAssignToStack<16, 16>>
+ CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
+
+ // __m64 vectors get 8-byte stack slots that are 8-byte aligned.
+ CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToStack<8, 8>>
]>;
CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>,
// Other vectors get 16-byte stack slots that are 16-byte aligned.
- CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>
+ CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
+
+ // __m64 vectors get 8-byte stack slots that are 8-byte aligned. They are
+ // passed in the parameter area.
+ CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToStack<8, 8>>
]>;
def CC_X86_32_C : CallingConv<[