x86-64/emit: fix stack arg offset for edgecases

It was wrong for functions that didn't use the frame pointer but took
arguments in the stack

1 files changed, 2 insertions, 1 deletions

diff --git a/src/t_x86-64_emit.c b/src/t_x86-64_emit.c
index 616ccf4..6079f3c 100644
--- a/src/t_x86-64_emit.c
+++ b/src/t_x86-64_emit.c
@@ -1360,7 +1360,6 @@ emitbin(Function *fn)
       DS("\x55\x48\x89\xE5");
    }
    saverestore = npush = calleesave(pcode, fn);
-   npush += !frame.usebp;
 
    /* ensure stack is 16-byte aligned */
    if (frame.usebp) {
@@ -1370,6 +1369,8 @@ emitbin(Function *fn)
          fn->stksiz += 8;
          frame.size += 8;
       }
+   } else {
+      frame.size = npush*8;
    }
    frame.stksiz = fn->stksiz;