1 # RUN: not llc -march=x86-64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s
5 @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
6 @__stack_chk_guard = external global i8*
8 define i32 @test() #0 {
10 %StackGuardSlot = alloca i8*
11 %StackGuard = load i8*, i8** @__stack_chk_guard
12 call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot)
13 %test = alloca i8*, align 8
15 store i8* %a, i8** %test, align 8
16 %b = load i8*, i8** %test, align 8
17 %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* %b)
18 call void @llvm.stackprotectorcheck(i8** @__stack_chk_guard)
22 declare i32 @printf(i8*, ...)
24 declare void @llvm.stackprotector(i8*, i8**) #1
26 declare void @llvm.stackprotectorcheck(i8**) #2
28 attributes #0 = { ssp "stack-protector-buffer-size"="5" }
29 attributes #1 = { nounwind }
30 attributes #2 = { nounwind argmemonly }
35 tracksRegLiveness: true
41 # CHECK: [[@LINE+1]]:21: expected a stack object
44 - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16,
45 callee-saved-register: '$rbx' }
47 - { id: 0, name: StackGuardSlot, offset: -24, size: 8, alignment: 8 }
48 - { id: 1, name: test, offset: -40, size: 8, alignment: 8 }
49 - { id: 2, name: a, offset: -29, size: 5, alignment: 1 }
54 frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
55 $rsp = frame-setup SUB64ri8 $rsp, 32, implicit-def dead $eflags
56 $rbx = LOAD_STACK_GUARD :: (invariant load 8 from %ir.__stack_chk_guard)
57 MOV64mr $rsp, 1, _, 24, _, $rbx
58 $rsi = LEA64r $rsp, 1, _, 19, _
59 MOV64mr $rsp, 1, _, 8, _, $rsi
60 $rdi = LEA64r $rip, 1, _, @.str, _
61 dead $eax = MOV32r0 implicit-def dead $eflags, implicit-def $al
62 CALL64pcrel32 @printf, csr_64, implicit $rsp, implicit $rdi, implicit $rsi, implicit $al, implicit-def $rsp, implicit-def $eax
63 CMP64rm killed $rbx, $rsp, 1, _, 24, _, implicit-def $eflags
64 $rsp = ADD64ri8 $rsp, 32, implicit-def dead $eflags
65 $rbx = POP64r implicit-def $rsp, implicit $rsp