llvm/test/CodeGen/SystemZ/stack-guard-tls.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs | FileCheck %s

define i32 @test_tls_stack_guard() #0 {
; CHECK-LABEL: test_tls_stack_guard:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    stmg %r14, %r15, 112(%r15)
; CHECK-NEXT:    .cfi_offset %r14, -48
; CHECK-NEXT:    .cfi_offset %r15, -40
; CHECK-NEXT:    aghi %r15, -1192
; CHECK-NEXT:    .cfi_def_cfa_offset 1352
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    mvc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    la %r2, 160(%r15)
; CHECK-NEXT:    brasl %r14, foo3@PLT
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    clc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    jlh .LBB0_2
; CHECK-NEXT:  # %bb.1: # %entry
; CHECK-NEXT:    lhi %r2, 0
; CHECK-NEXT:    lmg %r14, %r15, 1304(%r15)
; CHECK-NEXT:    br %r14
; CHECK-NEXT:  .LBB0_2: # %entry
; CHECK-NEXT:    brasl %r14, __stack_chk_fail@PLT
entry:
  %a1 = alloca [256 x i32], align 4
  call void @foo3(ptr %a1)
  ret i32 0
}


define i32 @test_global_stack_guard_branch(i32 %in) #0 {
; CHECK-LABEL: test_global_stack_guard_branch:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    stmg %r13, %r15, 104(%r15)
; CHECK-NEXT:    .cfi_offset %r13, -56
; CHECK-NEXT:    .cfi_offset %r14, -48
; CHECK-NEXT:    .cfi_offset %r15, -40
; CHECK-NEXT:    aghi %r15, -1192
; CHECK-NEXT:    .cfi_def_cfa_offset 1352
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    mvc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    lr %r13, %r2
; CHECK-NEXT:    la %r2, 160(%r15)
; CHECK-NEXT:    brasl %r14, foo3@PLT
; CHECK-NEXT:    cije %r13, 1, .LBB1_4
; CHECK-NEXT:  # %bb.1: # %entry
; CHECK-NEXT:    cijlh %r13, 0, .LBB1_6
; CHECK-NEXT:  # %bb.2: # %foo
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    clc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    jlh .LBB1_8
; CHECK-NEXT:  # %bb.3: # %foo
; CHECK-NEXT:    lhi %r2, 0
; CHECK-NEXT:    lmg %r13, %r15, 1296(%r15)
; CHECK-NEXT:    br %r14
; CHECK-NEXT:  .LBB1_4: # %bar
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    clc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    jlh .LBB1_8
; CHECK-NEXT:  # %bb.5: # %bar
; CHECK-NEXT:    lhi %r2, 1
; CHECK-NEXT:    lmg %r13, %r15, 1296(%r15)
; CHECK-NEXT:    br %r14
; CHECK-NEXT:  .LBB1_6: # %else
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    clc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    jlh .LBB1_8
; CHECK-NEXT:  # %bb.7: # %else
; CHECK-NEXT:    lhi %r2, 2
; CHECK-NEXT:    lmg %r13, %r15, 1296(%r15)
; CHECK-NEXT:    br %r14
; CHECK-NEXT:  .LBB1_8: # %bar
; CHECK-NEXT:    brasl %r14, __stack_chk_fail@PLT
entry:
  %a1 = alloca [256 x i32], align 4
  call void @foo3(ptr %a1)
  switch i32 %in, label %else [
    i32 0, label %foo
    i32 1, label %bar
  ]
foo:
  ret i32 0
bar:
  ret i32 1
else:
  ret i32 2
}

define i32 @test_tls_stack_guard_large() #0 {
; CHECK-LABEL: test_tls_stack_guard_large:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    stmg %r14, %r15, 112(%r15)
; CHECK-NEXT:    .cfi_offset %r14, -48
; CHECK-NEXT:    .cfi_offset %r15, -40
; CHECK-NEXT:    aghi %r15, -1192
; CHECK-NEXT:    .cfi_def_cfa_offset 1352
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    mvc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    la %r2, 160(%r15)
; CHECK-NEXT:    brasl %r14, foo3@PLT
; CHECK-NEXT:    ear %r1, %a0
; CHECK-NEXT:    sllg %r1, %r1, 32
; CHECK-NEXT:    ear %r1, %a1
; CHECK-NEXT:    clc 1184(8,%r15), 40(%r1)
; CHECK-NEXT:    jlh .LBB2_2
; CHECK-NEXT:  # %bb.1: # %entry
; CHECK-NEXT:    lhi %r2, 0
; CHECK-NEXT:    lmg %r14, %r15, 1304(%r15)
; CHECK-NEXT:    br %r14
; CHECK-NEXT:  .LBB2_2: # %entry
; CHECK-NEXT:    brasl %r14, __stack_chk_fail@PLT
entry:
  %a1 = alloca [256 x i32], align 4
  call void @foo3(ptr %a1)
  ret i32 0
}

declare void @foo3(ptr)

attributes #0 = { sspstrong }