diff options
Diffstat (limited to 'lib/Target/X86/X86CallingConv.td')
| -rw-r--r-- | lib/Target/X86/X86CallingConv.td | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index cd772cc..aaa304e 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -96,11 +96,12 @@ def RetCC_X86 : CallingConv<[ //===----------------------------------------------------------------------===// def CC_X86_64_C : CallingConv<[ + // Handles byval parameters. + CCIfStruct<CCStructAssign<[]>>, + // Promote i8/i16 arguments to i32. CCIfType<[i8, i16], CCPromoteToType<i32>>, - CCIfStruct<CCStructAssign<[RDI, RSI, RDX, RCX, R8, R9 ]>>, - // The first 6 integer arguments are passed in integer registers. CCIfType<[i32], CCAssignToReg<[EDI, ESI, EDX, ECX, R8D, R9D]>>, CCIfType<[i64], CCAssignToReg<[RDI, RSI, RDX, RCX, R8 , R9 ]>>, @@ -134,11 +135,12 @@ def CC_X86_64_C : CallingConv<[ // Tail call convention (fast): One register is reserved for target address, // namely R9 def CC_X86_64_TailCall : CallingConv<[ + // Handles byval parameters. + CCIfStruct<CCStructAssign<[]>>, + // Promote i8/i16 arguments to i32. CCIfType<[i8, i16], CCPromoteToType<i32>>, - CCIfStruct<CCStructAssign<[RDI, RSI, RDX, RCX, R8]>>, - // The first 6 integer arguments are passed in integer registers. CCIfType<[i32], CCAssignToReg<[EDI, ESI, EDX, ECX, R8D]>>, CCIfType<[i64], CCAssignToReg<[RDI, RSI, RDX, RCX, R8]>>, @@ -174,6 +176,9 @@ def CC_X86_64_TailCall : CallingConv<[ /// values are spilled on the stack, and the first 4 vector values go in XMM /// regs. def CC_X86_32_Common : CallingConv<[ + // Handles byval parameters. + CCIfStruct<CCStructAssign<[]>>, + // Integer/Float values get stored in stack slots that are 4 bytes in // size and 4-byte aligned. CCIfType<[i32, f32], CCAssignToStack<4, 4>>, |