+/// CC_X86_32_Vector_Common - In all X86-32 calling conventions, extra vector
+/// values are spilled on the stack.
+def CC_X86_32_Vector_Common : CallingConv<[
+ // Other SSE vectors get 16-byte stack slots that are 16-byte aligned.
+ CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
+
+ // 256-bit AVX vectors get 32-byte stack slots that are 32-byte aligned.
+ CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
+ CCAssignToStack<32, 32>>,
+
+ // 512-bit AVX 512-bit vectors get 64-byte stack slots that are 64-byte aligned.
+ CCIfType<[v64i8, v32i16, v16i32, v8i64, v16f32, v8f64],
+ CCAssignToStack<64, 64>>
+]>;
+
+// CC_X86_32_Vector_Standard - The first 3 vector arguments are passed in
+// vector registers
+def CC_X86_32_Vector_Standard : CallingConv<[
+ // SSE vector arguments are passed in XMM registers.
+ CCIfNotVarArg<CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
+ CCAssignToReg<[XMM0, XMM1, XMM2]>>>,
+
+ // AVX 256-bit vector arguments are passed in YMM registers.
+ CCIfNotVarArg<CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
+ CCIfSubtarget<"hasFp256()",
+ CCAssignToReg<[YMM0, YMM1, YMM2]>>>>,
+
+ // AVX 512-bit vector arguments are passed in ZMM registers.
+ CCIfNotVarArg<CCIfType<[v64i8, v32i16, v16i32, v8i64, v16f32, v8f64],
+ CCAssignToReg<[ZMM0, ZMM1, ZMM2]>>>,
+
+ CCDelegateTo<CC_X86_32_Vector_Common>
+]>;
+
+// CC_X86_32_Vector_Darwin - The first 4 vector arguments are passed in
+// vector registers.
+def CC_X86_32_Vector_Darwin : CallingConv<[
+ // SSE vector arguments are passed in XMM registers.
+ CCIfNotVarArg<CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
+ CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>>,
+
+ // AVX 256-bit vector arguments are passed in YMM registers.
+ CCIfNotVarArg<CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
+ CCIfSubtarget<"hasFp256()",
+ CCAssignToReg<[YMM0, YMM1, YMM2, YMM3]>>>>,
+
+ // AVX 512-bit vector arguments are passed in ZMM registers.
+ CCIfNotVarArg<CCIfType<[v64i8, v32i16, v16i32, v8i64, v16f32, v8f64],
+ CCAssignToReg<[ZMM0, ZMM1, ZMM2, ZMM3]>>>,
+
+ CCDelegateTo<CC_X86_32_Vector_Common>
+]>;
+