newer version of tcc almost working

2022-02-18 12:36:57 -05:00 · 2022-02-18 12:36:57 -05:00 · 826d1afd58
commit 826d1afd58
parent c42c5d94b8
442 changed files with 90400 additions and 24506 deletions
--- a/05/tcc-0.9.27/lib/alloca86_64.S
+++ b/05/tcc-0.9.27/lib/alloca86_64.S
@ -0,0 +1,34 @@
+/* ---------------------------------------------- */
+/* alloca86_64.S */
+
+.globl alloca
+
+alloca:
+    pop     %rdx
+#ifdef _WIN32
+    mov     %rcx,%rax
+#else
+    mov     %rdi,%rax
+#endif
+    add     $15,%rax
+    and     $-16,%rax
+    jz      p3
+
+#ifdef _WIN32
+p1:
+    cmp     $4096,%rax
+    jbe     p2
+    test    %rax,-4096(%rsp)
+    sub     $4096,%rsp
+    sub     $4096,%rax
+    jmp p1
+p2:
+#endif
+
+    sub     %rax,%rsp
+    mov     %rsp,%rax
+p3:
+    push    %rdx
+    ret
+
+/* ---------------------------------------------- */