llvm/test/CodeGen/X86/sjlj-do-not-merge-stack-slots.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s

define void @sjlj_do_not_merge_stack_slots() nounwind {
; CHECK-LABEL: sjlj_do_not_merge_stack_slots:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    subq $40, %rsp
; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT:    callq setjmp@PLT
; CHECK-NEXT:    testl %eax, %eax
; CHECK-NEXT:    je .LBB0_1
; CHECK-NEXT:  # %bb.2: # %else
; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT:    callq opaque@PLT
; CHECK-NEXT:    addq $40, %rsp
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB0_1: # %then
; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT:    callq escape@PLT
; CHECK-NEXT:    addq $40, %rsp
; CHECK-NEXT:    retq
entry:
  %obj = alloca [8 x i8], align 4
  %buf = alloca [12 x i8], align 4
  %obj.1 = alloca [8 x i8], align 4
  call void @llvm.lifetime.start.p0(ptr %obj)
  call void @llvm.lifetime.start.p0(ptr %buf)
  %rv = call i32 @setjmp(ptr %buf)
  %c = icmp eq i32 %rv, 0
  br i1 %c, label %then, label %else

then:
  call void @escape(ptr %obj)
  br label %exit

else:
  call void @llvm.lifetime.start.p0(ptr %obj.1)
  call void @opaque(ptr %obj.1)
  call void @llvm.lifetime.end.p0(ptr %obj.1)
  br label %exit

exit:
  call void @llvm.lifetime.end.p0(ptr %buf)
  call void @llvm.lifetime.end.p0(ptr %obj)
  ret void
}

declare i32 @setjmp(ptr) returns_twice
declare void @escape(ptr)
declare void @opaque(ptr)