summaryrefslogtreecommitdiff
path: root/test/CodeGen/X86/tailcall-64.ll
blob: 98e728c909cafe83f03443fd7888141bb131bb53 (plain)
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin11.4.0"

declare i64 @testi()

define i64 @test_trivial() {
 %A = tail call i64 @testi()
 ret i64 %A
}
; CHECK: test_trivial:
; CHECK: jmp	_testi                  ## TAILCALL


define i64 @test_noop_bitcast() {
 %A = tail call i64 @testi()
 %B = bitcast i64 %A to i64
 ret i64 %B
}
; CHECK: test_noop_bitcast:
; CHECK: jmp	_testi                  ## TAILCALL


; Tail call shouldn't be blocked by no-op inttoptr.
define i8* @test_inttoptr() {
  %A = tail call i64 @testi()
  %B = inttoptr i64 %A to i8*
  ret i8* %B
}

; CHECK: test_inttoptr:
; CHECK: jmp	_testi                  ## TAILCALL


declare <4 x float> @testv()

define <4 x i32> @test_vectorbitcast() {
  %A = tail call <4 x float> @testv()
  %B = bitcast <4 x float> %A to <4 x i32>
  ret <4 x i32> %B
}
; CHECK: test_vectorbitcast:
; CHECK: jmp	_testv                  ## TAILCALL


declare { i64, i64 } @testp()

define {i64, i64} @test_pair_trivial() {
  %A = tail call { i64, i64} @testp()
  ret { i64, i64} %A
}
; CHECK: test_pair_trivial:
; CHECK: jmp	_testp                  ## TAILCALL



define {i64, i64} @test_pair_trivial_extract() {
  %A = tail call { i64, i64} @testp()
  %x = extractvalue { i64, i64} %A, 0
  %y = extractvalue { i64, i64} %A, 1
  
  %b = insertvalue {i64, i64} undef, i64 %x, 0
  %c = insertvalue {i64, i64} %b, i64 %y, 1
  
  ret { i64, i64} %c
}

; CHECK: test_pair_trivial_extract:
; CHECK: jmp	_testp                  ## TAILCALL

define {i8*, i64} @test_pair_conv_extract() {
  %A = tail call { i64, i64} @testp()
  %x = extractvalue { i64, i64} %A, 0
  %y = extractvalue { i64, i64} %A, 1
  
  %x1 = inttoptr i64 %x to i8*
  
  %b = insertvalue {i8*, i64} undef, i8* %x1, 0
  %c = insertvalue {i8*, i64} %b, i64 %y, 1
  
  ret { i8*, i64} %c
}

; CHECK: test_pair_conv_extract:
; CHECK: jmp	_testp                  ## TAILCALL