llvm/test/CodeGen/X86/stack-protector-phi.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s

define void @test_phi_diff_size(i1 %c) sspstrong {
; CHECK-LABEL: test_phi_diff_size:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    subq $24, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 32
; CHECK-NEXT:    movq %fs:40, %rax
; CHECK-NEXT:    movq %rax, {{[0-9]+}}(%rsp)
; CHECK-NEXT:    testb $1, %dil
; CHECK-NEXT:    je .LBB0_1
; CHECK-NEXT:  # %bb.2: # %if
; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT:    jmp .LBB0_3
; CHECK-NEXT:  .LBB0_1:
; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT:  .LBB0_3: # %join
; CHECK-NEXT:    movq $0, (%rax)
; CHECK-NEXT:    movq %fs:40, %rax
; CHECK-NEXT:    cmpq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT:    jne .LBB0_5
; CHECK-NEXT:  # %bb.4: # %SP_return
; CHECK-NEXT:    addq $24, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB0_5: # %CallStackCheckFailBlk
; CHECK-NEXT:    .cfi_def_cfa_offset 32
; CHECK-NEXT:    callq __stack_chk_fail@PLT
entry:
  %a = alloca i64
  br i1 %c, label %if, label %join

if:
  %gep = getelementptr i8, ptr %a, i64 4
  br label %join

join:
  %phi = phi ptr [ %a, %entry ], [ %gep, %if ]
  store i64 0, ptr %phi
  ret void
}

define void @test_phi_loop(i1 %c) sspstrong {
; CHECK-LABEL: test_phi_loop:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    pushq %rbp
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    .cfi_offset %rbp, -16
; CHECK-NEXT:    movq %rsp, %rbp
; CHECK-NEXT:    .cfi_def_cfa_register %rbp
; CHECK-NEXT:    andq $-131072, %rsp # imm = 0xFFFE0000
; CHECK-NEXT:    subq $262144, %rsp # imm = 0x40000
; CHECK-NEXT:    movq %fs:40, %rax
; CHECK-NEXT:    movq %rax, {{[0-9]+}}(%rsp)
; CHECK-NEXT:    movq %rsp, %rax
; CHECK-NEXT:    .p2align 4
; CHECK-NEXT:  .LBB1_1: # %loop
; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    movq $0, (%rax)
; CHECK-NEXT:    addq $4, %rax
; CHECK-NEXT:    testb $1, %dil
; CHECK-NEXT:    jne .LBB1_1
; CHECK-NEXT:  # %bb.2: # %exit
; CHECK-NEXT:    movq %fs:40, %rax
; CHECK-NEXT:    cmpq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT:    jne .LBB1_4
; CHECK-NEXT:  # %bb.3: # %SP_return
; CHECK-NEXT:    movq %rbp, %rsp
; CHECK-NEXT:    popq %rbp
; CHECK-NEXT:    .cfi_def_cfa %rsp, 8
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB1_4: # %CallStackCheckFailBlk
; CHECK-NEXT:    .cfi_def_cfa %rbp, 16
; CHECK-NEXT:    callq __stack_chk_fail@PLT
entry:
  %a = alloca <10000 x i64>
  br label %loop

loop:
  %phi = phi ptr [ %a, %entry ], [ %gep, %loop ]
  store i64 0, ptr %phi
  %gep = getelementptr i8, ptr %phi, i64 4
  br i1 %c, label %loop, label %exit

exit:
  ret void
}