translate_sse: try to fix Win64

Not sure whether it works now (it is still disabled).

diff --git a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c
index 0fe6ebfcb454f4bccbff016ac17bf2fe316f4089..75b0f6a68ea555da2cd6ca39539e4621e826e454 100644 (file)
--- a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c
@@ -2105,8 +2105,9 @@ struct x86_reg x86_fn_arg( struct x86_function *p,
       case 4:
          return x86_make_reg(file_REG32, reg_R9);
       default:
+        /* Win64 allocates stack slots as if it pushed the first 4 arguments too */
          return x86_make_disp(x86_make_reg(file_REG32, reg_SP),
-               p->stack_offset + (arg - 4) * 8);     /* ??? */
+               p->stack_offset + arg * 8);
       }
    case X86_64_STD_ABI:
       switch(arg)