| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 | |
| ; RUN: llc -mtriple=i386-pc-windows-msvc < %s -o - | FileCheck -check-prefix=MSVC-X86 %s | |
| ; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s -o - | FileCheck -check-prefix=MSVC-X64 %s | |
| ; Make sure fastisel falls back and does something secure. | |
| ; RUN: llc -mtriple=i686-pc-windows-msvc -O0 < %s -o - | FileCheck -check-prefix=MSVC-X86-O0 %s | |
| ; RUN: llc -mtriple=x86_64-pc-windows-msvc -O0 < %s -o - | FileCheck -check-prefix=MSVC-X64-O0 %s | |
| @"\01LC" = internal constant [11 x i8] c"buf == %s\0A\00" ; <ptr> [#uses=1] | |
| define void @test(ptr %a) nounwind ssp { | |
| ; MSVC-X86-LABEL: test: | |
| ; MSVC-X86: # %bb.0: # %entry | |
| ; MSVC-X86-NEXT: pushl %esi | |
| ; MSVC-X86-NEXT: subl $12, %esp | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %eax | |
| ; MSVC-X86-NEXT: xorl %esp, %eax | |
| ; MSVC-X86-NEXT: movl %eax, {{[0-9]+}}(%esp) | |
| ; MSVC-X86-NEXT: movl %esp, %esi | |
| ; MSVC-X86-NEXT: pushl {{[0-9]+}}(%esp) | |
| ; MSVC-X86-NEXT: pushl %esi | |
| ; MSVC-X86-NEXT: calll _strcpy | |
| ; MSVC-X86-NEXT: addl $8, %esp | |
| ; MSVC-X86-NEXT: pushl %esi | |
| ; MSVC-X86-NEXT: pushl $LC | |
| ; MSVC-X86-NEXT: calll _printf | |
| ; MSVC-X86-NEXT: addl $8, %esp | |
| ; MSVC-X86-NEXT: movl {{[0-9]+}}(%esp), %eax | |
| ; MSVC-X86-NEXT: xorl %esp, %eax | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-NEXT: cmpl %eax, %ecx | |
| ; MSVC-X86-NEXT: jne LBB0_2 | |
| ; MSVC-X86-NEXT: # %bb.1: # %return | |
| ; MSVC-X86-NEXT: addl $12, %esp | |
| ; MSVC-X86-NEXT: popl %esi | |
| ; MSVC-X86-NEXT: retl | |
| ; MSVC-X86-NEXT: LBB0_2: # %return | |
| ; MSVC-X86-NEXT: movl {{[0-9]+}}(%esp), %ecx | |
| ; MSVC-X86-NEXT: xorl %esp, %ecx | |
| ; MSVC-X86-NEXT: calll @__security_check_cookie@4 | |
| ; | |
| ; MSVC-X64-LABEL: test: | |
| ; MSVC-X64: # %bb.0: # %entry | |
| ; MSVC-X64-NEXT: pushq %rsi | |
| ; MSVC-X64-NEXT: subq $64, %rsp | |
| ; MSVC-X64-NEXT: movq %rcx, %rdx | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-NEXT: xorq %rsp, %rax | |
| ; MSVC-X64-NEXT: movq %rax, {{[0-9]+}}(%rsp) | |
| ; MSVC-X64-NEXT: movq %rcx, {{[0-9]+}}(%rsp) | |
| ; MSVC-X64-NEXT: leaq {{[0-9]+}}(%rsp), %rsi | |
| ; MSVC-X64-NEXT: movq %rsi, %rcx | |
| ; MSVC-X64-NEXT: callq strcpy | |
| ; MSVC-X64-NEXT: leaq LC(%rip), %rcx | |
| ; MSVC-X64-NEXT: movq %rsi, %rdx | |
| ; MSVC-X64-NEXT: callq printf | |
| ; MSVC-X64-NEXT: movq {{[0-9]+}}(%rsp), %rax | |
| ; MSVC-X64-NEXT: xorq %rsp, %rax | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rcx | |
| ; MSVC-X64-NEXT: cmpq %rax, %rcx | |
| ; MSVC-X64-NEXT: jne .LBB0_2 | |
| ; MSVC-X64-NEXT: # %bb.1: # %return | |
| ; MSVC-X64-NEXT: addq $64, %rsp | |
| ; MSVC-X64-NEXT: popq %rsi | |
| ; MSVC-X64-NEXT: retq | |
| ; MSVC-X64-NEXT: .LBB0_2: # %return | |
| ; MSVC-X64-NEXT: movq {{[0-9]+}}(%rsp), %rcx | |
| ; MSVC-X64-NEXT: xorq %rsp, %rcx | |
| ; MSVC-X64-NEXT: callq __security_check_cookie | |
| ; | |
| ; MSVC-X86-O0-LABEL: test: | |
| ; MSVC-X86-O0: # %bb.0: # %entry | |
| ; MSVC-X86-O0-NEXT: subl $20, %esp | |
| ; MSVC-X86-O0-NEXT: movl {{[0-9]+}}(%esp), %eax | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %eax | |
| ; MSVC-X86-O0-NEXT: xorl %esp, %eax | |
| ; MSVC-X86-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) | |
| ; MSVC-X86-O0-NEXT: movl {{[0-9]+}}(%esp), %eax | |
| ; MSVC-X86-O0-NEXT: leal {{[0-9]+}}(%esp), %ecx | |
| ; MSVC-X86-O0-NEXT: movl %ecx, (%esp) | |
| ; MSVC-X86-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) | |
| ; MSVC-X86-O0-NEXT: calll _strcpy | |
| ; MSVC-X86-O0-NEXT: leal LC, %ecx | |
| ; MSVC-X86-O0-NEXT: leal {{[0-9]+}}(%esp), %eax | |
| ; MSVC-X86-O0-NEXT: movl %ecx, (%esp) | |
| ; MSVC-X86-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) | |
| ; MSVC-X86-O0-NEXT: calll _printf | |
| ; MSVC-X86-O0-NEXT: # %bb.1: # %return | |
| ; MSVC-X86-O0-NEXT: movl {{[0-9]+}}(%esp), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %esp, %ecx | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %eax | |
| ; MSVC-X86-O0-NEXT: subl %ecx, %eax | |
| ; MSVC-X86-O0-NEXT: jne LBB0_3 | |
| ; MSVC-X86-O0-NEXT: jmp LBB0_2 | |
| ; MSVC-X86-O0-NEXT: LBB0_3: # %return | |
| ; MSVC-X86-O0-NEXT: movl {{[0-9]+}}(%esp), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %esp, %ecx | |
| ; MSVC-X86-O0-NEXT: calll @__security_check_cookie@4 | |
| ; MSVC-X86-O0-NEXT: LBB0_2: # %return | |
| ; MSVC-X86-O0-NEXT: addl $20, %esp | |
| ; MSVC-X86-O0-NEXT: retl | |
| ; | |
| ; MSVC-X64-O0-LABEL: test: | |
| ; MSVC-X64-O0: # %bb.0: # %entry | |
| ; MSVC-X64-O0-NEXT: subq $56, %rsp | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: xorq %rsp, %rax | |
| ; MSVC-X64-O0-NEXT: movq %rax, {{[0-9]+}}(%rsp) | |
| ; MSVC-X64-O0-NEXT: movq %rcx, {{[0-9]+}}(%rsp) | |
| ; MSVC-X64-O0-NEXT: movq {{[0-9]+}}(%rsp), %rdx | |
| ; MSVC-X64-O0-NEXT: leaq {{[0-9]+}}(%rsp), %rcx | |
| ; MSVC-X64-O0-NEXT: callq strcpy | |
| ; MSVC-X64-O0-NEXT: leaq LC(%rip), %rcx | |
| ; MSVC-X64-O0-NEXT: leaq {{[0-9]+}}(%rsp), %rdx | |
| ; MSVC-X64-O0-NEXT: callq printf | |
| ; MSVC-X64-O0-NEXT: # %bb.1: # %return | |
| ; MSVC-X64-O0-NEXT: movq {{[0-9]+}}(%rsp), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rsp, %rcx | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: subq %rcx, %rax | |
| ; MSVC-X64-O0-NEXT: jne .LBB0_3 | |
| ; MSVC-X64-O0-NEXT: jmp .LBB0_2 | |
| ; MSVC-X64-O0-NEXT: .LBB0_3: # %return | |
| ; MSVC-X64-O0-NEXT: movq {{[0-9]+}}(%rsp), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rsp, %rcx | |
| ; MSVC-X64-O0-NEXT: callq __security_check_cookie | |
| ; MSVC-X64-O0-NEXT: .LBB0_2: # %return | |
| ; MSVC-X64-O0-NEXT: addq $56, %rsp | |
| ; MSVC-X64-O0-NEXT: retq | |
| entry: | |
| %a_addr = alloca ptr ; <ptr> [#uses=2] | |
| %buf = alloca [8 x i8] ; <ptr> [#uses=2] | |
| store ptr %a, ptr %a_addr | |
| %0 = load ptr, ptr %a_addr, align 4 ; <ptr> [#uses=1] | |
| %1 = call ptr @strcpy(ptr %buf, ptr %0) nounwind ; <ptr> [#uses=0] | |
| %2 = call i32 (ptr, ...) @printf(ptr @"\01LC", ptr %buf) nounwind ; <i32> [#uses=0] | |
| br label %return | |
| return: ; preds = %entry | |
| ret void | |
| } | |
| declare void @escape(ptr) | |
| define void @test_vla(i32 %n) nounwind ssp { | |
| ; MSVC-X86-LABEL: test_vla: | |
| ; MSVC-X86: # %bb.0: | |
| ; MSVC-X86-NEXT: pushl %ebp | |
| ; MSVC-X86-NEXT: movl %esp, %ebp | |
| ; MSVC-X86-NEXT: pushl %eax | |
| ; MSVC-X86-NEXT: movl 8(%ebp), %eax | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-NEXT: movl %ecx, -4(%ebp) | |
| ; MSVC-X86-NEXT: shll $2, %eax | |
| ; MSVC-X86-NEXT: calll __chkstk | |
| ; MSVC-X86-NEXT: movl %esp, %eax | |
| ; MSVC-X86-NEXT: pushl %eax | |
| ; MSVC-X86-NEXT: calll _escape | |
| ; MSVC-X86-NEXT: addl $4, %esp | |
| ; MSVC-X86-NEXT: movl -4(%ebp), %eax | |
| ; MSVC-X86-NEXT: xorl %ebp, %eax | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-NEXT: cmpl %eax, %ecx | |
| ; MSVC-X86-NEXT: jne LBB1_2 | |
| ; MSVC-X86-NEXT: # %bb.1: | |
| ; MSVC-X86-NEXT: movl %ebp, %esp | |
| ; MSVC-X86-NEXT: popl %ebp | |
| ; MSVC-X86-NEXT: retl | |
| ; MSVC-X86-NEXT: LBB1_2: | |
| ; MSVC-X86-NEXT: movl -4(%ebp), %ecx | |
| ; MSVC-X86-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-NEXT: calll @__security_check_cookie@4 | |
| ; | |
| ; MSVC-X64-LABEL: test_vla: | |
| ; MSVC-X64: # %bb.0: | |
| ; MSVC-X64-NEXT: pushq %rbp | |
| ; MSVC-X64-NEXT: subq $16, %rsp | |
| ; MSVC-X64-NEXT: leaq {{[0-9]+}}(%rsp), %rbp | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-NEXT: movq %rax, -8(%rbp) | |
| ; MSVC-X64-NEXT: movl %ecx, %eax | |
| ; MSVC-X64-NEXT: leaq 15(,%rax,4), %rax | |
| ; MSVC-X64-NEXT: andq $-16, %rax | |
| ; MSVC-X64-NEXT: callq __chkstk | |
| ; MSVC-X64-NEXT: subq %rax, %rsp | |
| ; MSVC-X64-NEXT: movq %rsp, %rcx | |
| ; MSVC-X64-NEXT: subq $32, %rsp | |
| ; MSVC-X64-NEXT: callq escape | |
| ; MSVC-X64-NEXT: addq $32, %rsp | |
| ; MSVC-X64-NEXT: movq -8(%rbp), %rax | |
| ; MSVC-X64-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rcx | |
| ; MSVC-X64-NEXT: cmpq %rax, %rcx | |
| ; MSVC-X64-NEXT: jne .LBB1_2 | |
| ; MSVC-X64-NEXT: # %bb.1: | |
| ; MSVC-X64-NEXT: movq %rbp, %rsp | |
| ; MSVC-X64-NEXT: popq %rbp | |
| ; MSVC-X64-NEXT: retq | |
| ; MSVC-X64-NEXT: .LBB1_2: | |
| ; MSVC-X64-NEXT: movq -8(%rbp), %rcx | |
| ; MSVC-X64-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-NEXT: subq $32, %rsp | |
| ; MSVC-X64-NEXT: callq __security_check_cookie | |
| ; | |
| ; MSVC-X86-O0-LABEL: test_vla: | |
| ; MSVC-X86-O0: # %bb.0: | |
| ; MSVC-X86-O0-NEXT: pushl %ebp | |
| ; MSVC-X86-O0-NEXT: movl %esp, %ebp | |
| ; MSVC-X86-O0-NEXT: pushl %eax | |
| ; MSVC-X86-O0-NEXT: movl 8(%ebp), %eax | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: movl %ecx, -4(%ebp) | |
| ; MSVC-X86-O0-NEXT: shll $2, %eax | |
| ; MSVC-X86-O0-NEXT: calll __chkstk | |
| ; MSVC-X86-O0-NEXT: movl %esp, %eax | |
| ; MSVC-X86-O0-NEXT: subl $4, %esp | |
| ; MSVC-X86-O0-NEXT: movl %eax, (%esp) | |
| ; MSVC-X86-O0-NEXT: calll _escape | |
| ; MSVC-X86-O0-NEXT: addl $4, %esp | |
| ; MSVC-X86-O0-NEXT: movl -4(%ebp), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %eax | |
| ; MSVC-X86-O0-NEXT: subl %ecx, %eax | |
| ; MSVC-X86-O0-NEXT: jne LBB1_2 | |
| ; MSVC-X86-O0-NEXT: jmp LBB1_1 | |
| ; MSVC-X86-O0-NEXT: LBB1_2: | |
| ; MSVC-X86-O0-NEXT: movl -4(%ebp), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: calll @__security_check_cookie@4 | |
| ; MSVC-X86-O0-NEXT: LBB1_1: | |
| ; MSVC-X86-O0-NEXT: movl %ebp, %esp | |
| ; MSVC-X86-O0-NEXT: popl %ebp | |
| ; MSVC-X86-O0-NEXT: retl | |
| ; | |
| ; MSVC-X64-O0-LABEL: test_vla: | |
| ; MSVC-X64-O0: # %bb.0: | |
| ; MSVC-X64-O0-NEXT: pushq %rbp | |
| ; MSVC-X64-O0-NEXT: subq $16, %rsp | |
| ; MSVC-X64-O0-NEXT: leaq {{[0-9]+}}(%rsp), %rbp | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-O0-NEXT: movq %rax, -8(%rbp) | |
| ; MSVC-X64-O0-NEXT: movl %ecx, %eax | |
| ; MSVC-X64-O0-NEXT: # kill: def $rax killed $eax | |
| ; MSVC-X64-O0-NEXT: leaq 15(,%rax,4), %rax | |
| ; MSVC-X64-O0-NEXT: andq $-16, %rax | |
| ; MSVC-X64-O0-NEXT: callq __chkstk | |
| ; MSVC-X64-O0-NEXT: subq %rax, %rsp | |
| ; MSVC-X64-O0-NEXT: movq %rsp, %rcx | |
| ; MSVC-X64-O0-NEXT: subq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: callq escape | |
| ; MSVC-X64-O0-NEXT: addq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: movq -8(%rbp), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: subq %rcx, %rax | |
| ; MSVC-X64-O0-NEXT: jne .LBB1_2 | |
| ; MSVC-X64-O0-NEXT: jmp .LBB1_1 | |
| ; MSVC-X64-O0-NEXT: .LBB1_2: | |
| ; MSVC-X64-O0-NEXT: movq -8(%rbp), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-O0-NEXT: subq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: callq __security_check_cookie | |
| ; MSVC-X64-O0-NEXT: .LBB1_1: | |
| ; MSVC-X64-O0-NEXT: movq %rbp, %rsp | |
| ; MSVC-X64-O0-NEXT: popq %rbp | |
| ; MSVC-X64-O0-NEXT: retq | |
| %vla = alloca i32, i32 %n | |
| call void @escape(ptr %vla) | |
| ret void | |
| } | |
| ; This case is interesting because we address local variables with RBX but XOR | |
| ; the guard value with RBP. That's fine, either value will do, as long as they | |
| ; are the same across the life of the frame. | |
| define void @test_vla_realign(i32 %n) nounwind ssp { | |
| ; MSVC-X86-LABEL: test_vla_realign: | |
| ; MSVC-X86: # %bb.0: | |
| ; MSVC-X86-NEXT: pushl %ebp | |
| ; MSVC-X86-NEXT: movl %esp, %ebp | |
| ; MSVC-X86-NEXT: pushl %edi | |
| ; MSVC-X86-NEXT: pushl %esi | |
| ; MSVC-X86-NEXT: andl $-32, %esp | |
| ; MSVC-X86-NEXT: subl $32, %esp | |
| ; MSVC-X86-NEXT: movl %esp, %esi | |
| ; MSVC-X86-NEXT: movl 8(%ebp), %eax | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-NEXT: movl %ecx, 12(%esi) | |
| ; MSVC-X86-NEXT: shll $2, %eax | |
| ; MSVC-X86-NEXT: calll __chkstk | |
| ; MSVC-X86-NEXT: movl %esp, %edi | |
| ; MSVC-X86-NEXT: movl %esi, %eax | |
| ; MSVC-X86-NEXT: pushl %eax | |
| ; MSVC-X86-NEXT: calll _escape | |
| ; MSVC-X86-NEXT: addl $4, %esp | |
| ; MSVC-X86-NEXT: pushl %edi | |
| ; MSVC-X86-NEXT: calll _escape | |
| ; MSVC-X86-NEXT: addl $4, %esp | |
| ; MSVC-X86-NEXT: movl 12(%esi), %eax | |
| ; MSVC-X86-NEXT: xorl %ebp, %eax | |
| ; MSVC-X86-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-NEXT: cmpl %eax, %ecx | |
| ; MSVC-X86-NEXT: jne LBB2_2 | |
| ; MSVC-X86-NEXT: # %bb.1: | |
| ; MSVC-X86-NEXT: leal -8(%ebp), %esp | |
| ; MSVC-X86-NEXT: popl %esi | |
| ; MSVC-X86-NEXT: popl %edi | |
| ; MSVC-X86-NEXT: popl %ebp | |
| ; MSVC-X86-NEXT: retl | |
| ; MSVC-X86-NEXT: LBB2_2: | |
| ; MSVC-X86-NEXT: movl 12(%esi), %ecx | |
| ; MSVC-X86-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-NEXT: calll @__security_check_cookie@4 | |
| ; | |
| ; MSVC-X64-LABEL: test_vla_realign: | |
| ; MSVC-X64: # %bb.0: | |
| ; MSVC-X64-NEXT: pushq %rbp | |
| ; MSVC-X64-NEXT: pushq %rsi | |
| ; MSVC-X64-NEXT: pushq %rbx | |
| ; MSVC-X64-NEXT: subq $32, %rsp | |
| ; MSVC-X64-NEXT: leaq {{[0-9]+}}(%rsp), %rbp | |
| ; MSVC-X64-NEXT: andq $-32, %rsp | |
| ; MSVC-X64-NEXT: movq %rsp, %rbx | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-NEXT: movq %rax, 24(%rbx) | |
| ; MSVC-X64-NEXT: movl %ecx, %eax | |
| ; MSVC-X64-NEXT: leaq 15(,%rax,4), %rax | |
| ; MSVC-X64-NEXT: andq $-16, %rax | |
| ; MSVC-X64-NEXT: callq __chkstk | |
| ; MSVC-X64-NEXT: subq %rax, %rsp | |
| ; MSVC-X64-NEXT: movq %rsp, %rsi | |
| ; MSVC-X64-NEXT: subq $32, %rsp | |
| ; MSVC-X64-NEXT: movq %rbx, %rcx | |
| ; MSVC-X64-NEXT: callq escape | |
| ; MSVC-X64-NEXT: movq %rsi, %rcx | |
| ; MSVC-X64-NEXT: callq escape | |
| ; MSVC-X64-NEXT: addq $32, %rsp | |
| ; MSVC-X64-NEXT: movq 24(%rbx), %rax | |
| ; MSVC-X64-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-NEXT: movq __security_cookie(%rip), %rcx | |
| ; MSVC-X64-NEXT: cmpq %rax, %rcx | |
| ; MSVC-X64-NEXT: jne .LBB2_2 | |
| ; MSVC-X64-NEXT: # %bb.1: | |
| ; MSVC-X64-NEXT: movq %rbp, %rsp | |
| ; MSVC-X64-NEXT: popq %rbx | |
| ; MSVC-X64-NEXT: popq %rsi | |
| ; MSVC-X64-NEXT: popq %rbp | |
| ; MSVC-X64-NEXT: retq | |
| ; MSVC-X64-NEXT: .LBB2_2: | |
| ; MSVC-X64-NEXT: movq 24(%rbx), %rcx | |
| ; MSVC-X64-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-NEXT: subq $32, %rsp | |
| ; MSVC-X64-NEXT: callq __security_check_cookie | |
| ; | |
| ; MSVC-X86-O0-LABEL: test_vla_realign: | |
| ; MSVC-X86-O0: # %bb.0: | |
| ; MSVC-X86-O0-NEXT: pushl %ebp | |
| ; MSVC-X86-O0-NEXT: movl %esp, %ebp | |
| ; MSVC-X86-O0-NEXT: pushl %esi | |
| ; MSVC-X86-O0-NEXT: andl $-32, %esp | |
| ; MSVC-X86-O0-NEXT: subl $64, %esp | |
| ; MSVC-X86-O0-NEXT: movl %esp, %esi | |
| ; MSVC-X86-O0-NEXT: movl 8(%ebp), %eax | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: movl %ecx, 48(%esi) | |
| ; MSVC-X86-O0-NEXT: shll $2, %eax | |
| ; MSVC-X86-O0-NEXT: calll __chkstk | |
| ; MSVC-X86-O0-NEXT: movl %esp, %eax | |
| ; MSVC-X86-O0-NEXT: movl %eax, 28(%esi) # 4-byte Spill | |
| ; MSVC-X86-O0-NEXT: leal 32(%esi), %eax | |
| ; MSVC-X86-O0-NEXT: subl $4, %esp | |
| ; MSVC-X86-O0-NEXT: movl %eax, (%esp) | |
| ; MSVC-X86-O0-NEXT: calll _escape | |
| ; MSVC-X86-O0-NEXT: movl 28(%esi), %eax # 4-byte Reload | |
| ; MSVC-X86-O0-NEXT: movl %eax, (%esp) | |
| ; MSVC-X86-O0-NEXT: calll _escape | |
| ; MSVC-X86-O0-NEXT: addl $4, %esp | |
| ; MSVC-X86-O0-NEXT: movl 48(%esi), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: movl ___security_cookie, %eax | |
| ; MSVC-X86-O0-NEXT: subl %ecx, %eax | |
| ; MSVC-X86-O0-NEXT: jne LBB2_2 | |
| ; MSVC-X86-O0-NEXT: jmp LBB2_1 | |
| ; MSVC-X86-O0-NEXT: LBB2_2: | |
| ; MSVC-X86-O0-NEXT: movl 48(%esi), %ecx | |
| ; MSVC-X86-O0-NEXT: xorl %ebp, %ecx | |
| ; MSVC-X86-O0-NEXT: calll @__security_check_cookie@4 | |
| ; MSVC-X86-O0-NEXT: LBB2_1: | |
| ; MSVC-X86-O0-NEXT: leal -4(%ebp), %esp | |
| ; MSVC-X86-O0-NEXT: popl %esi | |
| ; MSVC-X86-O0-NEXT: popl %ebp | |
| ; MSVC-X86-O0-NEXT: retl | |
| ; | |
| ; MSVC-X64-O0-LABEL: test_vla_realign: | |
| ; MSVC-X64-O0: # %bb.0: | |
| ; MSVC-X64-O0-NEXT: pushq %rbp | |
| ; MSVC-X64-O0-NEXT: pushq %rbx | |
| ; MSVC-X64-O0-NEXT: subq $72, %rsp | |
| ; MSVC-X64-O0-NEXT: leaq {{[0-9]+}}(%rsp), %rbp | |
| ; MSVC-X64-O0-NEXT: andq $-32, %rsp | |
| ; MSVC-X64-O0-NEXT: movq %rsp, %rbx | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rax | |
| ; MSVC-X64-O0-NEXT: movq %rax, 64(%rbx) | |
| ; MSVC-X64-O0-NEXT: movl %ecx, %eax | |
| ; MSVC-X64-O0-NEXT: # kill: def $rax killed $eax | |
| ; MSVC-X64-O0-NEXT: leaq 15(,%rax,4), %rax | |
| ; MSVC-X64-O0-NEXT: andq $-16, %rax | |
| ; MSVC-X64-O0-NEXT: callq __chkstk | |
| ; MSVC-X64-O0-NEXT: subq %rax, %rsp | |
| ; MSVC-X64-O0-NEXT: movq %rsp, %rax | |
| ; MSVC-X64-O0-NEXT: movq %rax, 24(%rbx) # 8-byte Spill | |
| ; MSVC-X64-O0-NEXT: leaq 32(%rbx), %rcx | |
| ; MSVC-X64-O0-NEXT: subq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: callq escape | |
| ; MSVC-X64-O0-NEXT: movq 24(%rbx), %rcx # 8-byte Reload | |
| ; MSVC-X64-O0-NEXT: callq escape | |
| ; MSVC-X64-O0-NEXT: addq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: movq 64(%rbx), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-O0-NEXT: movq __security_cookie(%rip), %rax | |
| ; MSVC-X64-O0-NEXT: subq %rcx, %rax | |
| ; MSVC-X64-O0-NEXT: jne .LBB2_2 | |
| ; MSVC-X64-O0-NEXT: jmp .LBB2_1 | |
| ; MSVC-X64-O0-NEXT: .LBB2_2: | |
| ; MSVC-X64-O0-NEXT: movq 64(%rbx), %rcx | |
| ; MSVC-X64-O0-NEXT: xorq %rbp, %rcx | |
| ; MSVC-X64-O0-NEXT: subq $32, %rsp | |
| ; MSVC-X64-O0-NEXT: callq __security_check_cookie | |
| ; MSVC-X64-O0-NEXT: .LBB2_1: | |
| ; MSVC-X64-O0-NEXT: leaq 8(%rbp), %rsp | |
| ; MSVC-X64-O0-NEXT: popq %rbx | |
| ; MSVC-X64-O0-NEXT: popq %rbp | |
| ; MSVC-X64-O0-NEXT: retq | |
| %realign = alloca i32, align 32 | |
| %vla = alloca i32, i32 %n | |
| call void @escape(ptr %realign) | |
| call void @escape(ptr %vla) | |
| ret void | |
| } | |
| declare ptr @strcpy(ptr, ptr) nounwind | |
| declare i32 @printf(ptr, ...) nounwind | |