1 files changed, 70 insertions, 0 deletions
diff --git a/llvm/lib/Target/VE/VECallingConv.td b/llvm/lib/Target/VE/VECallingConv.td
index 1a9097c79dd44..4f04dae884ab5 100644
--- a/llvm/lib/Target/VE/VECallingConv.td
+++ b/llvm/lib/Target/VE/VECallingConv.td
@@ -13,7 +13,77 @@
 //===----------------------------------------------------------------------===//
 // Aurora VE
 //===----------------------------------------------------------------------===//
+def CC_VE_C_Stack: CallingConv<[
+  // float --> need special handling like below.
+  //    0      4
+  //    +------+------+
+  //    | empty| float|
+  //    +------+------+
+  CCIfType<[f32], CCCustom<"allocateFloat">>,
+
+  // All of the rest are assigned to the stack in 8-byte aligned units.
+  CCAssignToStack<0, 8>
+]>;
+
+def CC_VE : CallingConv<[
+  // All arguments get passed in generic registers if there is space.
+
+  // Promote i1/i8/i16 arguments to i32.
+  CCIfType<[i1, i8, i16], CCPromoteToType<i32>>,
+
+  // bool, char, int, enum, long --> generic integer 32 bit registers
+  CCIfType<[i32], CCAssignToRegWithShadow<
+    [SW0, SW1, SW2, SW3, SW4, SW5, SW6, SW7],
+    [SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+
+  // float --> generic floating point 32 bit registers
+  CCIfType<[f32], CCAssignToRegWithShadow<
+    [SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7],
+    [SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+
+  // long long/double --> generic 64 bit registers
+  CCIfType<[i64, f64],
+           CCAssignToReg<[SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+
+  // Alternatively, they are assigned to the stack in 8-byte aligned units.
+  CCDelegateTo<CC_VE_C_Stack>
+]>;
+
+// All arguments get passed in stack for varargs function or non-prototyped
+// function.
+def CC_VE2 : CallingConv<[
+  // float --> need special handling like below.
+  //    0      4
+  //    +------+------+
+  //    | empty| float|
+  //    +------+------+
+  CCIfType<[f32], CCCustom<"allocateFloat">>,
+
+  CCAssignToStack<0, 8>
+]>;
+
+def RetCC_VE : CallingConv<[
+  // Promote i1/i8/i16 arguments to i32.
+  CCIfType<[i1, i8, i16], CCPromoteToType<i32>>,
+
+  // bool, char, int, enum, long --> generic integer 32 bit registers
+  CCIfType<[i32], CCAssignToRegWithShadow<
+    [SW0, SW1, SW2, SW3, SW4, SW5, SW6, SW7],
+    [SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+
+  // float --> generic floating point 32 bit registers
+  CCIfType<[f32], CCAssignToRegWithShadow<
+    [SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7],
+    [SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+
+  // long long/double --> generic 64 bit registers
+  CCIfType<[i64, f64],
+           CCAssignToReg<[SX0, SX1, SX2, SX3, SX4, SX5, SX6, SX7]>>,
+]>;
 
 // Callee-saved registers
 def CSR : CalleeSavedRegs<(add (sequence "SX%u", 18, 33))>;
 def CSR_NoRegs : CalleeSavedRegs<(add)>;
+
+// PreserveAll (clobbers s62,s63) - used for ve_grow_stack
+def CSR_preserve_all : CalleeSavedRegs<(add (sequence "SX%u", 0, 61))>;