From 826d1afd58c2e064a9c8fdb09eda1b08469de1a8 Mon Sep 17 00:00:00 2001
From: pommicket <pommicket@gmail.com>
Date: Fri, 18 Feb 2022 12:36:57 -0500
Subject: newer version of tcc almost working

---
 05/tcc-0.9.27/lib/alloca86_64.S | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 05/tcc-0.9.27/lib/alloca86_64.S

(limited to '05/tcc-0.9.27/lib/alloca86_64.S')

diff --git a/05/tcc-0.9.27/lib/alloca86_64.S b/05/tcc-0.9.27/lib/alloca86_64.S
new file mode 100644
index 0000000..ae3c97d
--- /dev/null
+++ 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
+
+/* ---------------------------------------------- */
-- 
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