From 85b9d43d4c7a4a5e6e7da651a159353a9a00e227 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 12 Jan 2012 20:24:30 +0000
Subject: Support segmented stacks on 64-bit FreeBSD. This patch uses tcb_spare
 field in the tcb structure to store info. Patch by Jyun-Yan You.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148041 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/segmented-stacks.ll | 52 ++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

(limited to 'test/CodeGen/X86/segmented-stacks.ll')

diff --git a/test/CodeGen/X86/segmented-stacks.ll b/test/CodeGen/X86/segmented-stacks.ll
index 4c4c542..3650304 100644
--- a/test/CodeGen/X86/segmented-stacks.ll
+++ b/test/CodeGen/X86/segmented-stacks.ll
@@ -3,6 +3,7 @@
 ; RUN: llc < %s -mtriple=i686-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin
 ; RUN: llc < %s -mtriple=x86_64-darwin -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin
 ; RUN: llc < %s -mtriple=i686-mingw32 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW
+; RUN: llc < %s -mtriple=x86_64-freebsd -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD
 
 ; We used to crash with filetype=obj
 ; RUN: llc < %s -mtriple=i686-linux -segmented-stacks -filetype=obj
@@ -10,6 +11,7 @@
 ; RUN: llc < %s -mtriple=i686-darwin -segmented-stacks -filetype=obj
 ; RUN: llc < %s -mtriple=x86_64-darwin -segmented-stacks -filetype=obj
 ; RUN: llc < %s -mtriple=i686-mingw32 -segmented-stacks -filetype=obj
+; RUN: llc < %s -mtriple=x86_64-freebsd -segmented-stacks -filetype=obj
 
 ; Just to prevent the alloca from being optimized away
 declare void @dummy_use(i32*, i32)
@@ -70,6 +72,16 @@ define void @test_basic() {
 ; X32-MinGW-NEXT:  calll ___morestack
 ; X32-MinGW-NEXT:  ret
 
+; X64-FreeBSD:       test_basic:
+
+; X64-FreeBSD:       cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT:  ja      .LBB0_2
+
+; X64-FreeBSD:       movabsq $40, %r10
+; X64-FreeBSD-NEXT:  movabsq $0, %r11
+; X64-FreeBSD-NEXT:  callq __morestack
+; X64-FreeBSD-NEXT:  ret
+
 }
 
 define i32 @test_nested(i32 * nest %closure, i32 %other) {
@@ -122,6 +134,16 @@ define i32 @test_nested(i32 * nest %closure, i32 %other) {
 ; X32-MinGW-NEXT:  calll ___morestack
 ; X32-MinGW-NEXT:  ret
 
+; X64-FreeBSD:       cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT:  ja      .LBB1_2
+
+; X64-FreeBSD:       movq %r10, %rax
+; X64-FreeBSD-NEXT:  movabsq $0, %r10
+; X64-FreeBSD-NEXT:  movabsq $0, %r11
+; X64-FreeBSD-NEXT:  callq __morestack
+; X64-FreeBSD-NEXT:  ret
+; X64-FreeBSD-NEXT:  movq %rax, %r10
+
 }
 
 define void @test_large() {
@@ -175,6 +197,15 @@ define void @test_large() {
 ; X32-MinGW-NEXT:  calll ___morestack
 ; X32-MinGW-NEXT:  ret
 
+; X64-FreeBSD:       leaq -40008(%rsp), %r11
+; X64-FreeBSD-NEXT:  cmpq %fs:24, %r11
+; X64-FreeBSD-NEXT:  ja      .LBB2_2
+
+; X64-FreeBSD:       movabsq $40008, %r10
+; X64-FreeBSD-NEXT:  movabsq $0, %r11
+; X64-FreeBSD-NEXT:  callq __morestack
+; X64-FreeBSD-NEXT:  ret
+
 }
 
 define fastcc void @test_fastcc() {
@@ -233,6 +264,16 @@ define fastcc void @test_fastcc() {
 ; X32-MinGW-NEXT:  calll ___morestack
 ; X32-MinGW-NEXT:  ret
 
+; X64-FreeBSD:       test_fastcc:
+
+; X64-FreeBSD:       cmpq %fs:24, %rsp
+; X64-FreeBSD-NEXT:  ja      .LBB3_2
+
+; X64-FreeBSD:       movabsq $40, %r10
+; X64-FreeBSD-NEXT:  movabsq $0, %r11
+; X64-FreeBSD-NEXT:  callq __morestack
+; X64-FreeBSD-NEXT:  ret
+
 }
 
 define fastcc void @test_fastcc_large() {
@@ -296,6 +337,17 @@ define fastcc void @test_fastcc_large() {
 ; X32-MinGW-NEXT:  calll ___morestack
 ; X32-MinGW-NEXT:  ret
 
+; X64-FreeBSD:       test_fastcc_large:
+
+; X64-FreeBSD:       leaq -40008(%rsp), %r11
+; X64-FreeBSD-NEXT:  cmpq %fs:24, %r11
+; X64-FreeBSD-NEXT:  ja      .LBB4_2
+
+; X64-FreeBSD:       movabsq $40008, %r10
+; X64-FreeBSD-NEXT:  movabsq $0, %r11
+; X64-FreeBSD-NEXT:  callq __morestack
+; X64-FreeBSD-NEXT:  ret
+
 }
 
 define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) {
-- 
cgit v1.1