|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32-Linux | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux  -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -code-model=large -verify-machineinstrs | FileCheck %s -check-prefix=X64-Linux-Large | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -verify-machineinstrs | FileCheck %s -check-prefix=X32ABI | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X32-Darwin | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -verify-machineinstrs | FileCheck %s -check-prefix=X64-Darwin | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X32-MinGW | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -verify-machineinstrs | FileCheck %s -check-prefix=X64-FreeBSD | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-dragonfly -verify-machineinstrs | FileCheck %s -check-prefix=X32-DFlyBSD | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-dragonfly -verify-machineinstrs | FileCheck %s -check-prefix=X64-DFlyBSD | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -verify-machineinstrs | FileCheck %s -check-prefix=X64-MinGW | 
|  |  | 
|  | ; We used to crash with filetype=obj | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-darwin -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-darwin -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-mingw32 -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-freebsd -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=i686-dragonfly -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-dragonfly -filetype=obj -o /dev/null | 
|  | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 -filetype=obj -o /dev/null | 
|  |  | 
|  | ; RUN: not llc < %s -mcpu=generic -mtriple=x86_64-solaris 2> %t.log | 
|  | ; RUN: FileCheck %s -input-file=%t.log -check-prefix=X64-Solaris | 
|  | ; RUN: not llc < %s -mcpu=generic -mtriple=i686-freebsd 2> %t.log | 
|  | ; RUN: FileCheck %s -input-file=%t.log -check-prefix=X32-FreeBSD | 
|  |  | 
|  | ; X64-Solaris: Segmented stacks not supported on this platform | 
|  | ; X32-FreeBSD: Segmented stacks not supported on FreeBSD i386 | 
|  |  | 
|  | ; Just to prevent the alloca from being optimized away | 
|  | declare void @dummy_use(i32*, i32) | 
|  |  | 
|  | define void @test_basic() #0 { | 
|  | %mem = alloca i32, i32 10 | 
|  | call void @dummy_use (i32* %mem, i32 10) | 
|  | ret void | 
|  |  | 
|  | ; X32-Linux-LABEL:       test_basic: | 
|  |  | 
|  | ; X32-Linux:       cmpl %gs:48, %esp | 
|  | ; X32-Linux-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X32-Linux:       pushl $0 | 
|  | ; X32-Linux-NEXT:  pushl $44 | 
|  | ; X32-Linux-NEXT:  calll __morestack | 
|  | ; X32-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux-LABEL:       test_basic: | 
|  |  | 
|  | ; X64-Linux:       cmpq %fs:112, %rsp | 
|  | ; X64-Linux-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X64-Linux:       movabsq $40, %r10 | 
|  | ; X64-Linux-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-NEXT:  callq __morestack | 
|  | ; X64-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux-Large-LABEL:       test_basic: | 
|  |  | 
|  | ; X64-Linux-Large:       cmpq %fs:112, %rsp | 
|  | ; X64-Linux-Large-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X64-Linux-Large:       movabsq $40, %r10 | 
|  | ; X64-Linux-Large-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-Large-NEXT:  callq *__morestack_addr(%rip) | 
|  | ; X64-Linux-Large-NEXT:  ret | 
|  |  | 
|  | ; X32ABI-LABEL:       test_basic: | 
|  |  | 
|  | ; X32ABI:       cmpl %fs:64, %esp | 
|  | ; X32ABI-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X32ABI:       movl $40, %r10d | 
|  | ; X32ABI-NEXT:  movl $0, %r11d | 
|  | ; X32ABI-NEXT:  callq __morestack | 
|  | ; X32ABI-NEXT:  ret | 
|  |  | 
|  | ; X32-Darwin-LABEL:      test_basic: | 
|  |  | 
|  | ; X32-Darwin:      movl $432, %ecx | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%ecx), %esp | 
|  | ; X32-Darwin-NEXT: ja      LBB0_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $0 | 
|  | ; X32-Darwin-NEXT: pushl $60 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | ; X64-Darwin-LABEL:      test_basic: | 
|  |  | 
|  | ; X64-Darwin:      cmpq %gs:816, %rsp | 
|  | ; X64-Darwin-NEXT: ja      LBB0_2 | 
|  |  | 
|  | ; X64-Darwin:      movabsq $40, %r10 | 
|  | ; X64-Darwin-NEXT: movabsq $0, %r11 | 
|  | ; X64-Darwin-NEXT: callq ___morestack | 
|  | ; X64-Darwin-NEXT: ret | 
|  |  | 
|  | ; X32-MinGW-LABEL:       test_basic: | 
|  |  | 
|  | ; X32-MinGW:       cmpl %fs:20, %esp | 
|  | ; X32-MinGW-NEXT:  ja      LBB0_2 | 
|  |  | 
|  | ; X32-MinGW:       pushl $0 | 
|  | ; X32-MinGW-NEXT:  pushl $40 | 
|  | ; X32-MinGW-NEXT:  calll ___morestack | 
|  | ; X32-MinGW-NEXT:  ret | 
|  |  | 
|  | ; X64-MinGW-LABEL:       test_basic: | 
|  |  | 
|  | ; X64-MinGW:       cmpq %gs:40, %rsp | 
|  | ; X64-MinGW-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X64-MinGW:       movabsq $72, %r10 | 
|  | ; X64-MinGW-NEXT:  movabsq $32, %r11 | 
|  | ; X64-MinGW-NEXT:  callq __morestack | 
|  | ; X64-MinGW-NEXT:  retq | 
|  |  | 
|  | ; X64-FreeBSD-LABEL:       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 | 
|  |  | 
|  | ; X32-DFlyBSD-LABEL:       test_basic: | 
|  |  | 
|  | ; X32-DFlyBSD:       cmpl %fs:16, %esp | 
|  | ; X32-DFlyBSD-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X32-DFlyBSD:       pushl $0 | 
|  | ; X32-DFlyBSD-NEXT:  pushl $40 | 
|  | ; X32-DFlyBSD-NEXT:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD-LABEL:       test_basic: | 
|  |  | 
|  | ; X64-DFlyBSD:       cmpq %fs:32, %rsp | 
|  | ; X64-DFlyBSD-NEXT:  ja      .LBB0_2 | 
|  |  | 
|  | ; X64-DFlyBSD:       movabsq $40, %r10 | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  callq __morestack | 
|  | ; X64-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | } | 
|  |  | 
|  | define i32 @test_nested(i32 * nest %closure, i32 %other) #0 { | 
|  | %addend = load i32 , i32 * %closure | 
|  | %result = add i32 %other, %addend | 
|  | %mem = alloca i32, i32 10 | 
|  | call void @dummy_use (i32* %mem, i32 10) | 
|  | ret i32 %result | 
|  |  | 
|  | ; X32-Linux:       cmpl %gs:48, %esp | 
|  | ; X32-Linux-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X32-Linux:       pushl $4 | 
|  | ; X32-Linux-NEXT:  pushl $44 | 
|  | ; X32-Linux-NEXT:  calll __morestack | 
|  | ; X32-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux:       cmpq %fs:112, %rsp | 
|  | ; X64-Linux-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X64-Linux:       movq %r10, %rax | 
|  | ; X64-Linux-NEXT:  movabsq $56, %r10 | 
|  | ; X64-Linux-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-NEXT:  callq __morestack | 
|  | ; X64-Linux-NEXT:  ret | 
|  | ; X64-Linux-NEXT:  movq %rax, %r10 | 
|  |  | 
|  | ; X32ABI:       cmpl %fs:64, %esp | 
|  | ; X32ABI-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X32ABI:       movl %r10d, %eax | 
|  | ; X32ABI-NEXT:  movl $56, %r10d | 
|  | ; X32ABI-NEXT:  movl $0, %r11d | 
|  | ; X32ABI-NEXT:  callq __morestack | 
|  | ; X32ABI-NEXT:  ret | 
|  | ; X32ABI-NEXT:  movq %rax, %r10 | 
|  |  | 
|  | ; X32-Darwin:      movl $432, %edx | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%edx), %esp | 
|  | ; X32-Darwin-NEXT: ja      LBB1_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $4 | 
|  | ; X32-Darwin-NEXT: pushl $60 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | ; X64-Darwin:      cmpq %gs:816, %rsp | 
|  | ; X64-Darwin-NEXT: ja      LBB1_2 | 
|  |  | 
|  | ; X64-Darwin:      movq %r10, %rax | 
|  | ; X64-Darwin-NEXT: movabsq $56, %r10 | 
|  | ; X64-Darwin-NEXT: movabsq $0, %r11 | 
|  | ; X64-Darwin-NEXT: callq ___morestack | 
|  | ; X64-Darwin-NEXT: ret | 
|  | ; X64-Darwin-NEXT: movq %rax, %r10 | 
|  |  | 
|  | ; X32-MinGW:       cmpl %fs:20, %esp | 
|  | ; X32-MinGW-NEXT:  ja      LBB1_2 | 
|  |  | 
|  | ; X32-MinGW:       pushl $4 | 
|  | ; X32-MinGW-NEXT:  pushl $44 | 
|  | ; X32-MinGW-NEXT:  calll ___morestack | 
|  | ; X32-MinGW-NEXT:  ret | 
|  |  | 
|  | ; X64-MinGW-LABEL: test_nested: | 
|  | ; X64-MinGW:       cmpq %gs:40, %rsp | 
|  | ; X64-MinGW-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X64-MinGW:       movq %r10, %rax | 
|  | ; X64-MinGW-NEXT:  movabsq $88, %r10 | 
|  | ; X64-MinGW-NEXT:  movabsq $32, %r11 | 
|  | ; X64-MinGW-NEXT:  callq __morestack | 
|  | ; X64-MinGW-NEXT:  retq | 
|  | ; X64-MinGW-NEXT:  movq %rax, %r10 | 
|  |  | 
|  | ; X64-FreeBSD:       cmpq %fs:24, %rsp | 
|  | ; X64-FreeBSD-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X64-FreeBSD:       movq %r10, %rax | 
|  | ; X64-FreeBSD-NEXT:  movabsq $56, %r10 | 
|  | ; X64-FreeBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-FreeBSD-NEXT:  callq __morestack | 
|  | ; X64-FreeBSD-NEXT:  ret | 
|  | ; X64-FreeBSD-NEXT:  movq %rax, %r10 | 
|  |  | 
|  | ; X32-DFlyBSD:       cmpl %fs:16, %esp | 
|  | ; X32-DFlyBSD-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X32-DFlyBSD:       pushl $4 | 
|  | ; X32-DFlyBSD-NEXT:  pushl $44 | 
|  | ; X32-DFlyBSD-NEXT:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD:       cmpq %fs:32, %rsp | 
|  | ; X64-DFlyBSD-NEXT:  ja      .LBB1_2 | 
|  |  | 
|  | ; X64-DFlyBSD:       movq %r10, %rax | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $56, %r10 | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  callq __morestack | 
|  | ; X64-DFlyBSD-NEXT:  ret | 
|  | ; X64-DFlyBSD-NEXT:  movq %rax, %r10 | 
|  |  | 
|  | } | 
|  |  | 
|  | define void @test_large() #0 { | 
|  | %mem = alloca i32, i32 10000 | 
|  | call void @dummy_use (i32* %mem, i32 0) | 
|  | ret void | 
|  |  | 
|  | ; X32-Linux:       leal -40012(%esp), %ecx | 
|  | ; X32-Linux-NEXT:  cmpl %gs:48, %ecx | 
|  | ; X32-Linux-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X32-Linux:       pushl $0 | 
|  | ; X32-Linux-NEXT:  pushl $40012 | 
|  | ; X32-Linux-NEXT:  calll __morestack | 
|  | ; X32-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux:       leaq -40008(%rsp), %r11 | 
|  | ; X64-Linux-NEXT:  cmpq %fs:112, %r11 | 
|  | ; X64-Linux-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X64-Linux:       movabsq $40008, %r10 | 
|  | ; X64-Linux-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-NEXT:  callq __morestack | 
|  | ; X64-Linux-NEXT:  ret | 
|  |  | 
|  | ; X32ABI:       leal -40008(%rsp), %r11d | 
|  | ; X32ABI-NEXT:  cmpl %fs:64, %r11d | 
|  | ; X32ABI-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X32ABI:       movl $40008, %r10d | 
|  | ; X32ABI-NEXT:  movl $0, %r11d | 
|  | ; X32ABI-NEXT:  callq __morestack | 
|  | ; X32ABI-NEXT:  ret | 
|  |  | 
|  | ; X32-Darwin:      leal -40012(%esp), %ecx | 
|  | ; X32-Darwin-NEXT: movl $432, %eax | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%eax), %ecx | 
|  | ; X32-Darwin-NEXT: ja      LBB2_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $0 | 
|  | ; X32-Darwin-NEXT: pushl $40012 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | ; X64-Darwin:      leaq -40008(%rsp), %r11 | 
|  | ; X64-Darwin-NEXT: cmpq %gs:816, %r11 | 
|  | ; X64-Darwin-NEXT: ja      LBB2_2 | 
|  |  | 
|  | ; X64-Darwin:      movabsq $40008, %r10 | 
|  | ; X64-Darwin-NEXT: movabsq $0, %r11 | 
|  | ; X64-Darwin-NEXT: callq ___morestack | 
|  | ; X64-Darwin-NEXT: ret | 
|  |  | 
|  | ; X32-MinGW:       leal -40000(%esp), %ecx | 
|  | ; X32-MinGW-NEXT:  cmpl %fs:20, %ecx | 
|  | ; X32-MinGW-NEXT:  ja      LBB2_2 | 
|  |  | 
|  | ; X32-MinGW:       pushl $0 | 
|  | ; X32-MinGW-NEXT:  pushl $40000 | 
|  | ; X32-MinGW-NEXT:  calll ___morestack | 
|  | ; X32-MinGW-NEXT:  ret | 
|  |  | 
|  | ; X64-MinGW-LABEL: test_large: | 
|  | ; X64-MinGW:       leaq -40040(%rsp), %r11 | 
|  | ; X64-MinGW-NEXT:  cmpq %gs:40, %r11 | 
|  | ; X64-MinGW-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X64-MinGW:       movabsq $40040, %r10 | 
|  | ; X64-MinGW-NEXT:  movabsq $32, %r11 | 
|  | ; X64-MinGW-NEXT:  callq __morestack | 
|  | ; X64-MinGW-NEXT:  retq | 
|  |  | 
|  | ; 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 | 
|  |  | 
|  | ; X32-DFlyBSD:       leal -40000(%esp), %ecx | 
|  | ; X32-DFlyBSD-NEXT:  cmpl %fs:16, %ecx | 
|  | ; X32-DFlyBSD-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X32-DFlyBSD:       pushl $0 | 
|  | ; X32-DFlyBSD-NEXT:  pushl $40000 | 
|  | ; X32-DFlyBSD-NEXT:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD:       leaq -40008(%rsp), %r11 | 
|  | ; X64-DFlyBSD-NEXT:  cmpq %fs:32, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  ja      .LBB2_2 | 
|  |  | 
|  | ; X64-DFlyBSD:       movabsq $40008, %r10 | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  callq __morestack | 
|  | ; X64-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | } | 
|  |  | 
|  | define fastcc void @test_fastcc() #0 { | 
|  | %mem = alloca i32, i32 10 | 
|  | call void @dummy_use (i32* %mem, i32 10) | 
|  | ret void | 
|  |  | 
|  | ; X32-Linux-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X32-Linux:       cmpl %gs:48, %esp | 
|  | ; X32-Linux-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X32-Linux:       pushl $0 | 
|  | ; X32-Linux-NEXT:  pushl $44 | 
|  | ; X32-Linux-NEXT:  calll __morestack | 
|  | ; X32-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X64-Linux:       cmpq %fs:112, %rsp | 
|  | ; X64-Linux-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X64-Linux:       movabsq $40, %r10 | 
|  | ; X64-Linux-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-NEXT:  callq __morestack | 
|  | ; X64-Linux-NEXT:  ret | 
|  |  | 
|  | ; X32ABI-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X32ABI:       cmpl %fs:64, %esp | 
|  | ; X32ABI-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X32ABI:       movl $40, %r10d | 
|  | ; X32ABI-NEXT:  movl $0, %r11d | 
|  | ; X32ABI-NEXT:  callq __morestack | 
|  | ; X32ABI-NEXT:  ret | 
|  |  | 
|  | ; X32-Darwin-LABEL:      test_fastcc: | 
|  |  | 
|  | ; X32-Darwin:      movl $432, %eax | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%eax), %esp | 
|  | ; X32-Darwin-NEXT: ja      LBB3_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $0 | 
|  | ; X32-Darwin-NEXT: pushl $60 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | ; X64-Darwin-LABEL:      test_fastcc: | 
|  |  | 
|  | ; X64-Darwin:      cmpq %gs:816, %rsp | 
|  | ; X64-Darwin-NEXT: ja      LBB3_2 | 
|  |  | 
|  | ; X64-Darwin:      movabsq $40, %r10 | 
|  | ; X64-Darwin-NEXT: movabsq $0, %r11 | 
|  | ; X64-Darwin-NEXT: callq ___morestack | 
|  | ; X64-Darwin-NEXT: ret | 
|  |  | 
|  | ; X32-MinGW-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X32-MinGW:       cmpl %fs:20, %esp | 
|  | ; X32-MinGW-NEXT:  ja      LBB3_2 | 
|  |  | 
|  | ; X32-MinGW:       pushl $0 | 
|  | ; X32-MinGW-NEXT:  pushl $40 | 
|  | ; X32-MinGW-NEXT:  calll ___morestack | 
|  | ; X32-MinGW-NEXT:  ret | 
|  |  | 
|  | ; X64-MinGW-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X64-MinGW:       cmpq %gs:40, %rsp | 
|  | ; X64-MinGW-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X64-MinGW:       movabsq $72, %r10 | 
|  | ; X64-MinGW-NEXT:  movabsq $32, %r11 | 
|  | ; X64-MinGW-NEXT:  callq __morestack | 
|  | ; X64-MinGW-NEXT:  retq | 
|  |  | 
|  | ; X64-FreeBSD-LABEL:       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 | 
|  |  | 
|  | ; X32-DFlyBSD-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X32-DFlyBSD:       cmpl %fs:16, %esp | 
|  | ; X32-DFlyBSD-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X32-DFlyBSD:       pushl $0 | 
|  | ; X32-DFlyBSD-NEXT:  pushl $40 | 
|  | ; X32-DFlyBSD-NEXT:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD-LABEL:       test_fastcc: | 
|  |  | 
|  | ; X64-DFlyBSD:       cmpq %fs:32, %rsp | 
|  | ; X64-DFlyBSD-NEXT:  ja      .LBB3_2 | 
|  |  | 
|  | ; X64-DFlyBSD:       movabsq $40, %r10 | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  callq __morestack | 
|  | ; X64-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | } | 
|  |  | 
|  | define fastcc void @test_fastcc_large() #0 { | 
|  | %mem = alloca i32, i32 10000 | 
|  | call void @dummy_use (i32* %mem, i32 0) | 
|  | ret void | 
|  |  | 
|  | ; X32-Linux-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X32-Linux:       leal -40012(%esp), %eax | 
|  | ; X32-Linux-NEXT:  cmpl %gs:48, %eax | 
|  | ; X32-Linux-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X32-Linux:       pushl $0 | 
|  | ; X32-Linux-NEXT:  pushl $40012 | 
|  | ; X32-Linux-NEXT:  calll __morestack | 
|  | ; X32-Linux-NEXT:  ret | 
|  |  | 
|  | ; X64-Linux-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X64-Linux:       leaq -40008(%rsp), %r11 | 
|  | ; X64-Linux-NEXT:  cmpq %fs:112, %r11 | 
|  | ; X64-Linux-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X64-Linux:       movabsq $40008, %r10 | 
|  | ; X64-Linux-NEXT:  movabsq $0, %r11 | 
|  | ; X64-Linux-NEXT:  callq __morestack | 
|  | ; X64-Linux-NEXT:  ret | 
|  |  | 
|  | ; X32ABI-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X32ABI:       leal -40008(%rsp), %r11d | 
|  | ; X32ABI-NEXT:  cmpl %fs:64, %r11d | 
|  | ; X32ABI-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X32ABI:       movl $40008, %r10d | 
|  | ; X32ABI-NEXT:  movl $0, %r11d | 
|  | ; X32ABI-NEXT:  callq __morestack | 
|  | ; X32ABI-NEXT:  ret | 
|  |  | 
|  | ; X32-Darwin-LABEL:      test_fastcc_large: | 
|  |  | 
|  | ; X32-Darwin:      leal -40012(%esp), %eax | 
|  | ; X32-Darwin-NEXT: movl $432, %ecx | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%ecx), %eax | 
|  | ; X32-Darwin-NEXT: ja      LBB4_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $0 | 
|  | ; X32-Darwin-NEXT: pushl $40012 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | ; X64-Darwin-LABEL:      test_fastcc_large: | 
|  |  | 
|  | ; X64-Darwin:      leaq -40008(%rsp), %r11 | 
|  | ; X64-Darwin-NEXT: cmpq %gs:816, %r11 | 
|  | ; X64-Darwin-NEXT: ja      LBB4_2 | 
|  |  | 
|  | ; X64-Darwin:      movabsq $40008, %r10 | 
|  | ; X64-Darwin-NEXT: movabsq $0, %r11 | 
|  | ; X64-Darwin-NEXT: callq ___morestack | 
|  | ; X64-Darwin-NEXT: ret | 
|  |  | 
|  | ; X32-MinGW-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X32-MinGW:       leal -40000(%esp), %eax | 
|  | ; X32-MinGW-NEXT:  cmpl %fs:20, %eax | 
|  | ; X32-MinGW-NEXT:  ja      LBB4_2 | 
|  |  | 
|  | ; X32-MinGW:       pushl $0 | 
|  | ; X32-MinGW-NEXT:  pushl $40000 | 
|  | ; X32-MinGW-NEXT:  calll ___morestack | 
|  | ; X32-MinGW-NEXT:  ret | 
|  |  | 
|  | ; X64-MinGW-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X64-MinGW:       leaq -40040(%rsp), %r11 | 
|  | ; X64-MinGW-NEXT:  cmpq %gs:40, %r11 | 
|  | ; X64-MinGW-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X64-MinGW:       movabsq $40040, %r10 | 
|  | ; X64-MinGW-NEXT:  movabsq $32, %r11 | 
|  | ; X64-MinGW-NEXT:  callq __morestack | 
|  | ; X64-MinGW-NEXT:  retq | 
|  |  | 
|  | ; X64-FreeBSD-LABEL:       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 | 
|  |  | 
|  | ; X32-DFlyBSD-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X32-DFlyBSD:       leal -40000(%esp), %eax | 
|  | ; X32-DFlyBSD-NEXT:  cmpl %fs:16, %eax | 
|  | ; X32-DFlyBSD-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X32-DFlyBSD:       pushl $0 | 
|  | ; X32-DFlyBSD-NEXT:  pushl $40000 | 
|  | ; X32-DFlyBSD-NEXT:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD-LABEL:       test_fastcc_large: | 
|  |  | 
|  | ; X64-DFlyBSD:       leaq -40008(%rsp), %r11 | 
|  | ; X64-DFlyBSD-NEXT:  cmpq %fs:32, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  ja      .LBB4_2 | 
|  |  | 
|  | ; X64-DFlyBSD:       movabsq $40008, %r10 | 
|  | ; X64-DFlyBSD-NEXT:  movabsq $0, %r11 | 
|  | ; X64-DFlyBSD-NEXT:  callq __morestack | 
|  | ; X64-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | } | 
|  |  | 
|  | define fastcc void @test_fastcc_large_with_ecx_arg(i32 %a) #0 { | 
|  | %mem = alloca i32, i32 10000 | 
|  | call void @dummy_use (i32* %mem, i32 %a) | 
|  | ret void | 
|  |  | 
|  | ; This is testing that the Mac implementation preserves ecx | 
|  |  | 
|  | ; X32-Darwin-LABEL:      test_fastcc_large_with_ecx_arg: | 
|  |  | 
|  | ; X32-Darwin:      leal -40012(%esp), %eax | 
|  | ; X32-Darwin-NEXT: pushl %ecx | 
|  | ; X32-Darwin-NEXT: movl $432, %ecx | 
|  | ; X32-Darwin-NEXT: cmpl %gs:(%ecx), %eax | 
|  | ; X32-Darwin-NEXT: popl %ecx | 
|  | ; X32-Darwin-NEXT: ja      LBB5_2 | 
|  |  | 
|  | ; X32-Darwin:      pushl $0 | 
|  | ; X32-Darwin-NEXT: pushl $40012 | 
|  | ; X32-Darwin-NEXT: calll ___morestack | 
|  | ; X32-Darwin-NEXT: ret | 
|  |  | 
|  | } | 
|  |  | 
|  | define void @test_nostack() #0 { | 
|  | ret void | 
|  |  | 
|  | ; X32-Linux-LABEL: test_nostack: | 
|  | ; X32-Linux-NOT:   calll __morestack | 
|  |  | 
|  | ; X64-Linux-LABEL: test_nostack: | 
|  | ; X32-Linux-NOT:   callq __morestack | 
|  |  | 
|  | ; X32ABI-LABEL: test_nostack: | 
|  | ; X32ABI-NOT:   callq __morestack | 
|  |  | 
|  | ; X32-Darwin-LABEL: test_nostack: | 
|  | ; X32-Darwin-NOT:   calll __morestack | 
|  |  | 
|  | ; X64-Darwin-LABEL: test_nostack: | 
|  | ; X64-Darwin-NOT:   callq __morestack | 
|  |  | 
|  | ; X32-MinGW-LABEL: test_nostack: | 
|  | ; X32-MinGW-NOT:   calll __morestack | 
|  |  | 
|  | ; X64-MinGW-LABEL: test_nostack: | 
|  | ; X64-MinGW-NOT:   callq __morestack | 
|  |  | 
|  | ; X64-FreeBSD-LABEL: test_nostack: | 
|  | ; X64-FreeBSD-NOT:   callq __morestack | 
|  |  | 
|  | ; X32-DFlyBSD-LABEL: test_nostack: | 
|  | ; X32-DFlyBSD-NOT:   calll __morestack | 
|  |  | 
|  | ; X64-DFlyBSD-LABEL: test_nostack: | 
|  | ; X64-DFlyBSD-NOT:   callq __morestack | 
|  | } | 
|  |  | 
|  | define void @test_nosplitstck() { | 
|  | ret void | 
|  | } | 
|  |  | 
|  | ; Test to make sure that a morestack call is generated if there is a | 
|  | ; sibling call, even if the function in question has no stack frame | 
|  | ; (PR37807). | 
|  |  | 
|  | declare i32 @callee(i32) | 
|  |  | 
|  | define i32 @test_sibling_call_empty_frame(i32 %x) #0 { | 
|  | %call = tail call i32 @callee(i32 %x) #0 | 
|  | ret i32 %call | 
|  |  | 
|  | ; X32-Linux-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X32-Linux:  calll __morestack | 
|  |  | 
|  | ; X64-Linux-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X64-Linux:  callq __morestack | 
|  |  | 
|  | ; X64-Linux-Large-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X64-Linux-Large:  callq *__morestack_addr(%rip) | 
|  |  | 
|  | ; X32ABI-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X32ABI:  callq __morestack | 
|  |  | 
|  | ; X32-Darwin-LABEL:      test_sibling_call_empty_frame: | 
|  | ; X32-Darwin: calll ___morestack | 
|  |  | 
|  | ; X64-Darwin-LABEL:      test_sibling_call_empty_frame: | 
|  | ; X64-Darwin: callq ___morestack | 
|  |  | 
|  | ; X32-MinGW-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X32-MinGW:  calll ___morestack | 
|  |  | 
|  | ; X64-MinGW-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X64-MinGW:  callq __morestack | 
|  |  | 
|  | ; X64-FreeBSD-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X64-FreeBSD:  callq __morestack | 
|  |  | 
|  | ; X32-DFlyBSD-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X32-DFlyBSD:  calll __morestack | 
|  | ; X32-DFlyBSD-NEXT:  ret | 
|  |  | 
|  | ; X64-DFlyBSD-LABEL:       test_sibling_call_empty_frame: | 
|  | ; X64-DFlyBSD:  callq __morestack | 
|  |  | 
|  | } | 
|  |  | 
|  | attributes #0 = { "split-stack" } | 
|  |  | 
|  | ; X64-Linux-Large: .rodata | 
|  | ; X64-Linux-Large-NEXT: __morestack_addr: | 
|  | ; X64-Linux-Large-NEXT: .quad	__morestack | 
|  |  | 
|  | ; X32-Linux: .section ".note.GNU-split-stack","",@progbits | 
|  | ; X32-Linux: .section ".note.GNU-no-split-stack","",@progbits | 
|  |  | 
|  | ; X64-Linux: .section ".note.GNU-split-stack","",@progbits | 
|  | ; X64-Linux: .section ".note.GNU-no-split-stack","",@progbits | 
|  |  | 
|  | ; X64-FreeBSD: .section ".note.GNU-split-stack","",@progbits | 
|  | ; X64-FreeBSD: .section ".note.GNU-no-split-stack","",@progbits | 
|  |  | 
|  | ; X32-DFlyBSD: .section ".note.GNU-split-stack","",@progbits | 
|  | ; X32-DFlyBSD: .section ".note.GNU-no-split-stack","",@progbits | 
|  |  | 
|  | ; X64-DFlyBSD: .section ".note.GNU-split-stack","",@progbits | 
|  | ; X64-DFlyBSD: .section ".note.GNU-no-split-stack","",@progbits |