diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86CallingConv.td')
| -rw-r--r-- | llvm/lib/Target/X86/X86CallingConv.td | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86CallingConv.td b/llvm/lib/Target/X86/X86CallingConv.td index 8d3e33d5703..5b7dd024dc4 100644 --- a/llvm/lib/Target/X86/X86CallingConv.td +++ b/llvm/lib/Target/X86/X86CallingConv.td @@ -593,8 +593,8 @@ def CC_X86_Win64_C : CallingConv<[ // FIXME: Handle byval stuff. // FIXME: Handle varargs. - // Promote i1/i8/i16/v1i1 arguments to i32. - CCIfType<[i1, i8, i16, v1i1], CCPromoteToType<i32>>, + // Promote i1/i8/i16/v1i1 arguments to i8. + CCIfType<[i1, v1i1], CCPromoteToType<i8>>, // The 'nest' parameter, if any, is passed in R10. CCIfNest<CCAssignToReg<[R10]>>, @@ -619,6 +619,10 @@ def CC_X86_Win64_C : CallingConv<[ CCIfType<[x86mmx], CCBitConvertToType<i64>>, // The first 4 integer arguments are passed in integer registers. + CCIfType<[i8 ], CCAssignToRegWithShadow<[CL , DL , R8B , R9B ], + [XMM0, XMM1, XMM2, XMM3]>>, + CCIfType<[i16], CCAssignToRegWithShadow<[CX , DX , R8W , R9W ], + [XMM0, XMM1, XMM2, XMM3]>>, CCIfType<[i32], CCAssignToRegWithShadow<[ECX , EDX , R8D , R9D ], [XMM0, XMM1, XMM2, XMM3]>>, @@ -847,13 +851,15 @@ def CC_X86_32_MCU : CallingConv<[ ]>; def CC_X86_32_FastCall : CallingConv<[ - // Promote i1/i8/i16/v1i1 arguments to i32. - CCIfType<[i1, i8, i16, v1i1], CCPromoteToType<i32>>, + // Promote i1 to i8. + CCIfType<[i1], CCPromoteToType<i8>>, // The 'nest' parameter, if any, is passed in EAX. CCIfNest<CCAssignToReg<[EAX]>>, // The first 2 integer arguments are passed in ECX/EDX + CCIfInReg<CCIfType<[ i8], CCAssignToReg<[ CL, DL]>>>, + CCIfInReg<CCIfType<[i16], CCAssignToReg<[ CX, DX]>>>, CCIfInReg<CCIfType<[i32], CCAssignToReg<[ECX, EDX]>>>, // Otherwise, same as everything else. |
