llvm/test/CodeGen/X86/tail-call-deref.ll


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

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

declare i8* @foo()

define dereferenceable(8) i8* @test1() nounwind {
; CHECK-LABEL: test1:
; CHECK:       # %bb.0:
; CHECK-NEXT:    jmp foo # TAILCALL
  %ret = tail call i8* @foo()
  ret i8* %ret
}

define i8* @test2() nounwind {
; CHECK-LABEL: test2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    jmp foo # TAILCALL
  %ret = tail call dereferenceable(8)  i8* @foo()
  ret i8* %ret
}

define dereferenceable_or_null(8) i8* @test3() nounwind {
; CHECK-LABEL: test3:
; CHECK:       # %bb.0:
; CHECK-NEXT:    jmp foo # TAILCALL
  %ret = tail call i8* @foo()
  ret i8* %ret
}

define i8* @test4() nounwind {
; CHECK-LABEL: test4:
; CHECK:       # %bb.0:
; CHECK-NEXT:    jmp foo # TAILCALL
  %ret = tail call dereferenceable_or_null(8) i8* @foo()
  ret i8* %ret
}