From 8257829623d484229c9785deedd05375c5732493 Mon Sep 17 00:00:00 2001
From: Carlos Montiers <carlos@thefunsouth.com>
Date: Thu, 10 Jul 2014 00:37:20 -0400
Subject: Fix problem using alloca function, executable crashed even with a
 exception handler function, when try to allocate INT_MAX. Patch provided by
 Jason Hood in private e-mail, when I ask to him for help. He say: Feel free
 to pass it on to the mailing list.

---
 lib/alloca86_64.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/alloca86_64.S')

diff --git a/lib/alloca86_64.S b/lib/alloca86_64.S
index dd46ce6..51acd42 100644
--- a/lib/alloca86_64.S
+++ b/lib/alloca86_64.S
@@ -17,10 +17,10 @@ alloca:
 #ifdef TCC_TARGET_PE
 p1:
     cmp     $4096,%rax
-    jle     p2
+    jb      p2
+    test    %rax,-4096(%rsp)
     sub     $4096,%rsp
     sub     $4096,%rax
-    test    %rax,(%rsp)
     jmp p1
 p2:
 #endif
-- 
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