diff options
Diffstat (limited to 'lib/Target/X86/X86CallingConv.td')
| -rw-r--r-- | lib/Target/X86/X86CallingConv.td | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index 26461986427d2..5d806fe60b862 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -500,7 +500,7 @@ def CC_X86_64_C : CallingConv<[ // A SwiftError is passed in R12. CCIfSwiftError<CCIfType<[i64], CCAssignToReg<[R12]>>>, - // For Swift Calling Convention, pass sret in %RAX. + // For Swift Calling Convention, pass sret in %rax. CCIfCC<"CallingConv::Swift", CCIfSRet<CCIfType<[i64], CCAssignToReg<[RAX]>>>>, @@ -592,6 +592,9 @@ def CC_X86_Win64_C : CallingConv<[ // The 'nest' parameter, if any, is passed in R10. CCIfNest<CCAssignToReg<[R10]>>, + // A SwiftError is passed in R12. + CCIfSwiftError<CCIfType<[i64], CCAssignToReg<[R12]>>>, + // 128 bit vectors are passed by pointer CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCPassIndirect<i64>>, @@ -1047,6 +1050,8 @@ def CSR_Win64_NoSSE : CalleeSavedRegs<(add RBX, RBP, RDI, RSI, R12, R13, R14, R1 def CSR_Win64 : CalleeSavedRegs<(add CSR_Win64_NoSSE, (sequence "XMM%u", 6, 15))>; +def CSR_Win64_SwiftError : CalleeSavedRegs<(sub CSR_Win64, R12)>; + // The function used by Darwin to obtain the address of a thread-local variable // uses rdi to pass a single parameter and rax for the return value. All other // GPRs are preserved. |