From 165ca1d4ba4385ab5ca1fe98976921f03e61f9cf Mon Sep 17 00:00:00 2001
From: Sanjoy Das <sanjoy@playingwithpointers.com>
Date: Sat, 3 Dec 2011 09:21:07 +0000
Subject: Fix a bug in the x86-32 code generated for segmented stacks.

Currently LLVM pads the call to __morestack with a add and sub of 8
bytes to esp.  This isn't correct since __morestack expects the call
to be followed directly by a ret.

This commit also adjusts the relevant test-case.

llvm-svn: 145765
---
 llvm/test/CodeGen/X86/segmented-stacks.ll | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'llvm/test/CodeGen/X86')

diff --git a/llvm/test/CodeGen/X86/segmented-stacks.ll b/llvm/test/CodeGen/X86/segmented-stacks.ll
index a92aca5abb2..c28c31911d2 100644
--- a/llvm/test/CodeGen/X86/segmented-stacks.ll
+++ b/llvm/test/CodeGen/X86/segmented-stacks.ll
@@ -23,11 +23,9 @@ false:
 ; X32:      leal -12(%esp), %ecx
 ; X32-NEXT: cmpl %gs:48, %ecx
 
-; X32:      subl $8, %esp
-; X32-NEXT: pushl $4
+; X32:      pushl $4
 ; X32-NEXT: pushl $12
 ; X32-NEXT: calll __morestack
-; X32-NEXT: addl $8, %esp
 ; X32-NEXT: ret 
 
 ; X32:      movl %esp, %eax
@@ -72,11 +70,9 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) {
 ; X32-NEXT: cmpl %gs:48, %edx
 
 
-; X32:      subl $8, %esp
-; X32-NEXT: pushl $4
+; X32:      pushl $4
 ; X32-NEXT: pushl $0
 ; X32-NEXT: calll __morestack
-; X32-NEXT: addl $8, %esp
 ; X32-NEXT: ret
 
 ; X64:      leaq (%rsp), %r11
-- 
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