# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses the external symbol machine
# operands correctly.

--- |
  @__stack_chk_guard = external global i8*

  define i32 @test(i32 %n) #0 {
  entry:
    %StackGuardSlot = alloca i8*
    %StackGuard = load i8*, i8** @__stack_chk_guard
    call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot)
    %a = alloca [128 x i32], align 16
    %idxprom = sext i32 %n to i64
    %arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 %idxprom
    %0 = load i32, i32* %arrayidx, align 4
    call void @llvm.stackprotectorcheck(i8** @__stack_chk_guard)
    ret i32 %0
  }

  declare void @llvm.stackprotector(i8*, i8**) #1

  declare void @llvm.stackprotectorcheck(i8**) #1

  attributes #0 = { ssp "stack-protector-buffer-size"="8" }
  attributes #1 = { nounwind }

...
---
name:            test
tracksRegLiveness: true
body:
  - id:              0
    name:            entry
    successors:      [ '%bb.1.entry', '%bb.2.entry' ]
    liveins:         [ '%edi' ]
    instructions:
      - '%rsp = SUB64ri32 %rsp, 520, implicit-def %eflags'
      - '%rcx = LOAD_STACK_GUARD'
      - 'MOV64mr %rsp, 1, _, 512, _, %rcx'
      - '%rax = MOVSX64rr32 %edi'
      - '%eax = MOV32rm %rsp, 4, %rax, 0, _'
      - 'CMP64rm %rcx, %rsp, 1, _, 512, _, implicit-def %eflags'
      - 'JNE_1 %bb.2.entry, implicit %eflags'
  - id:              1
    name:            entry
    liveins:         [ '%eax' ]
    instructions:
      - '%rsp = ADD64ri32 %rsp, 520, implicit-def %eflags'
      - 'RETQ %eax'
  - id:              2
    name:            entry
    instructions:
      # CHECK:      CALL64pcrel32 $__stack_chk_fail,
      # CHECK-NEXT: CALL64pcrel32 $__stack_chk_fail.09-_,
      # CHECK-NEXT: CALL64pcrel32 $"__stack_chk_fail$",
      # CHECK-NEXT: CALL64pcrel32 $"$Quoted \09 External symbol \11 ",
      - 'CALL64pcrel32 $__stack_chk_fail, csr_64, implicit %rsp, implicit-def %rsp'
      - 'CALL64pcrel32 $__stack_chk_fail.09-_, csr_64, implicit %rsp, implicit-def %rsp'
      - 'CALL64pcrel32 $__stack_chk_fail$, csr_64, implicit %rsp, implicit-def %rsp'
      - 'CALL64pcrel32 $"$Quoted \09 External symbol \11 ", csr_64, implicit %rsp, implicit-def %rsp'
...