diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/stack-protector-msvc.ll')
-rw-r--r-- | llvm/test/CodeGen/X86/stack-protector-msvc.ll | 154 |
1 files changed, 16 insertions, 138 deletions
diff --git a/llvm/test/CodeGen/X86/stack-protector-msvc.ll b/llvm/test/CodeGen/X86/stack-protector-msvc.ll index c1f79f9db2f..5eccc65f2de 100644 --- a/llvm/test/CodeGen/X86/stack-protector-msvc.ll +++ b/llvm/test/CodeGen/X86/stack-protector-msvc.ll @@ -1,9 +1,19 @@ -; 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 +; RUN: llc -mtriple=i386-pc-windows-msvc < %s -o - | FileCheck -check-prefix=MSVC-I386 %s +; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s -o - | FileCheck -check-prefix=MSVC-64 %s + +; MSVC-I386: movl ___security_cookie, %[[REG1:[a-z]*]] +; MSVC-I386: movl %[[REG1]], [[SLOT:[0-9]*]](%esp) +; MSVC-I386: calll _strcpy +; MSVC-I386: movl [[SLOT]](%esp), %ecx +; MSVC-I386: calll @__security_check_cookie@4 +; MSVC-I386: retl + +; MSVC-64: movq __security_cookie(%rip), %[[REG1:[a-z]*]] +; MSVC-64: movq %[[REG1]], [[SLOT:[0-9]*]](%rsp) +; MSVC-64: callq strcpy +; MSVC-64: movq [[SLOT]](%rsp), %rcx +; MSVC-64: callq __security_check_cookie @"\01LC" = internal constant [11 x i8] c"buf == %s\0A\00" ; <[11 x i8]*> [#uses=1] @@ -11,6 +21,7 @@ define void @test(i8* %a) nounwind ssp { entry: %a_addr = alloca i8* ; <i8**> [#uses=2] %buf = alloca [8 x i8] ; <[8 x i8]*> [#uses=2] + %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] store i8* %a, i8** %a_addr %buf1 = bitcast [8 x i8]* %buf to i8* ; <i8*> [#uses=1] %0 = load i8*, i8** %a_addr, align 4 ; <i8*> [#uses=1] @@ -23,139 +34,6 @@ return: ; preds = %entry ret void } -; MSVC-X86-LABEL: _test: -; MSVC-X86: movl ___security_cookie, %[[REG1:[^ ]*]] -; MSVC-X86: xorl %esp, %[[REG1]] -; MSVC-X86: movl %[[REG1]], [[SLOT:[0-9]*]](%esp) -; MSVC-X86: calll _strcpy -; MSVC-X86: movl [[SLOT]](%esp), %ecx -; MSVC-X86: xorl %esp, %ecx -; MSVC-X86: calll @__security_check_cookie@4 -; MSVC-X86: retl - -; MSVC-X64-LABEL: test: -; MSVC-X64: movq __security_cookie(%rip), %[[REG1:[^ ]*]] -; MSVC-X64: xorq %rsp, %[[REG1]] -; MSVC-X64: movq %[[REG1]], [[SLOT:[0-9]*]](%rsp) -; MSVC-X64: callq strcpy -; MSVC-X64: movq [[SLOT]](%rsp), %rcx -; MSVC-X64: xorq %rsp, %rcx -; MSVC-X64: callq __security_check_cookie -; MSVC-X64: retq - -; MSVC-X86-O0-LABEL: _test: -; MSVC-X86-O0: movl ___security_cookie, %[[REG1:[^ ]*]] -; MSVC-X86-O0: xorl %esp, %[[REG1]] -; MSVC-X86-O0: movl %[[REG1]], [[SLOT:[0-9]*]](%esp) -; MSVC-X86-O0: calll _strcpy -; MSVC-X86-O0: movl [[SLOT]](%esp), %[[REG1:[^ ]*]] -; MSVC-X86-O0: xorl %esp, %[[REG1]] -; MSVC-X86-O0: movl %[[REG1]], %ecx -; MSVC-X86-O0: calll @__security_check_cookie@4 -; MSVC-X86-O0: retl - -; MSVC-X64-O0-LABEL: test: -; MSVC-X64-O0: movq __security_cookie(%rip), %[[REG1:[^ ]*]] -; MSVC-X64-O0: xorq %rsp, %[[REG1]] -; MSVC-X64-O0: movq %[[REG1]], [[SLOT:[0-9]*]](%rsp) -; MSVC-X64-O0: callq strcpy -; MSVC-X64-O0: movq [[SLOT]](%rsp), %[[REG1:[^ ]*]] -; MSVC-X64-O0: xorq %rsp, %[[REG1]] -; MSVC-X64-O0: movq %[[REG1]], %rcx -; MSVC-X64-O0: callq __security_check_cookie -; MSVC-X64-O0: retq - - -declare void @escape(i32*) - -define void @test_vla(i32 %n) nounwind ssp { - %vla = alloca i32, i32 %n - call void @escape(i32* %vla) - ret void -} - -; MSVC-X86-LABEL: _test_vla: -; MSVC-X86: pushl %ebp -; MSVC-X86: movl %esp, %ebp -; MSVC-X86: movl ___security_cookie, %[[REG1:[^ ]*]] -; MSVC-X86: xorl %ebp, %[[REG1]] -; MSVC-X86: movl %[[REG1]], [[SLOT:-[0-9]*]](%ebp) -; MSVC-X86: calll __chkstk -; MSVC-X86: pushl -; MSVC-X86: calll _escape -; MSVC-X86: movl [[SLOT]](%ebp), %ecx -; MSVC-X86: xorl %ebp, %ecx -; MSVC-X86: calll @__security_check_cookie@4 -; MSVC-X86: movl %ebp, %esp -; MSVC-X86: popl %ebp -; MSVC-X86: retl - -; MSVC-X64-LABEL: test_vla: -; MSVC-X64: pushq %rbp -; MSVC-X64: subq $16, %rsp -; MSVC-X64: leaq 16(%rsp), %rbp -; MSVC-X64: movq __security_cookie(%rip), %[[REG1:[^ ]*]] -; MSVC-X64: xorq %rbp, %[[REG1]] -; MSVC-X64: movq %[[REG1]], [[SLOT:-[0-9]*]](%rbp) -; MSVC-X64: callq __chkstk -; MSVC-X64: callq escape -; MSVC-X64: movq [[SLOT]](%rbp), %rcx -; MSVC-X64: xorq %rbp, %rcx -; MSVC-X64: callq __security_check_cookie -; MSVC-X64: retq - - -; 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 { - %realign = alloca i32, align 32 - %vla = alloca i32, i32 %n - call void @escape(i32* %realign) - call void @escape(i32* %vla) - ret void -} - -; MSVC-X86-LABEL: _test_vla_realign: -; MSVC-X86: pushl %ebp -; MSVC-X86: movl %esp, %ebp -; MSVC-X86: pushl %esi -; MSVC-X86: andl $-32, %esp -; MSVC-X86: subl $32, %esp -; MSVC-X86: movl %esp, %esi -; MSVC-X86: movl ___security_cookie, %[[REG1:[^ ]*]] -; MSVC-X86: xorl %ebp, %[[REG1]] -; MSVC-X86: movl %[[REG1]], [[SLOT:[0-9]*]](%esi) -; MSVC-X86: calll __chkstk -; MSVC-X86: pushl -; MSVC-X86: calll _escape -; MSVC-X86: movl [[SLOT]](%esi), %ecx -; MSVC-X86: xorl %ebp, %ecx -; MSVC-X86: calll @__security_check_cookie@4 -; MSVC-X86: leal -8(%ebp), %esp -; MSVC-X86: popl %esi -; MSVC-X86: popl %ebp -; MSVC-X86: retl - -; MSVC-X64-LABEL: test_vla_realign: -; MSVC-X64: pushq %rbp -; MSVC-X64: pushq %rbx -; MSVC-X64: subq $32, %rsp -; MSVC-X64: leaq 32(%rsp), %rbp -; MSVC-X64: andq $-32, %rsp -; MSVC-X64: movq %rsp, %rbx -; MSVC-X64: movq __security_cookie(%rip), %[[REG1:[^ ]*]] -; MSVC-X64: xorq %rbp, %[[REG1]] -; MSVC-X64: movq %[[REG1]], [[SLOT:[0-9]*]](%rbx) -; MSVC-X64: callq __chkstk -; MSVC-X64: callq escape -; MSVC-X64: movq [[SLOT]](%rbx), %rcx -; MSVC-X64: xorq %rbp, %rcx -; MSVC-X64: callq __security_check_cookie -; MSVC-X64: retq - - declare i8* @strcpy(i8*, i8*) nounwind declare i32 @printf(i8*, ...) nounwind |