diff options
Diffstat (limited to 'src/vm/amd64/calldescrworkeramd64.S')
| -rw-r--r-- | src/vm/amd64/calldescrworkeramd64.S | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/vm/amd64/calldescrworkeramd64.S b/src/vm/amd64/calldescrworkeramd64.S index efee6f325a..ca4fd703c6 100644 --- a/src/vm/amd64/calldescrworkeramd64.S +++ b/src/vm/amd64/calldescrworkeramd64.S @@ -108,11 +108,43 @@ LOCAL_LABEL(NoFloatArguments): je LOCAL_LABEL(ReturnsFloat) cmp ecx, 8 je LOCAL_LABEL(ReturnsDouble) - // unexpected + +#if defined(UNIX_AMD64_ABI) && defined(FEATURE_UNIX_AMD64_STRUCT_PASSING) + // Struct with two integer eightbytes + cmp ecx, 16 + jne LOCAL_LABEL(NotTwoIntegerEightbytes) + mov qword ptr [rbx+CallDescrData__returnValue], rax + mov qword ptr [rbx+CallDescrData__returnValue + 8], rdx + jmp LOCAL_LABEL(Epilog) + +LOCAL_LABEL(NotTwoIntegerEightbytes): + // Struct with the first eightbyte SSE and the second one integer + cmp ecx, 16 + 1 + jne LOCAL_LABEL(NotFirstSSESecondIntegerEightbyte) + movsd real8 ptr [rbx+CallDescrData__returnValue], xmm0 + mov qword ptr [rbx+CallDescrData__returnValue + 8], rax + jmp LOCAL_LABEL(Epilog) + +LOCAL_LABEL(NotFirstSSESecondIntegerEightbyte): + // Struct with the first eightbyte integer and the second one SSE + cmp ecx, 16 + 2 + jne LOCAL_LABEL(NotFirstIntegerSecondSSEEightbyte) + mov qword ptr [rbx+CallDescrData__returnValue], rax + movsd real8 ptr [rbx+CallDescrData__returnValue + 8], xmm0 + jmp LOCAL_LABEL(Epilog) + +LOCAL_LABEL(NotFirstIntegerSecondSSEEightbyte): + // Struct with two SSE eightbytes + cmp ecx, 16 + 3 + jne LOCAL_LABEL(Epilog) // unexpected + movsd real8 ptr [rbx+CallDescrData__returnValue], xmm0 + movsd real8 ptr [rbx+CallDescrData__returnValue + 8], xmm1 +#endif // UNIX_AMD64_ABI && FEATURE_UNIX_AMD64_STRUCT_PASSING + jmp LOCAL_LABEL(Epilog) LOCAL_LABEL(ReturnsInt): - mov [rbx+CallDescrData__returnValue], rax + mov qword ptr [rbx+CallDescrData__returnValue], rax LOCAL_LABEL(Epilog): lea rsp, [rbp - 8] // deallocate arguments |