x86_32-arguments.cpp revision 5e31474b9c8348e8d0404264ae6a8775e34df6ac 
1// RUN: %clang_cc1 -triple i386-apple-darwin9 -emit-llvm -o - %s | FileCheck %s
2
3// Non-trivial dtors, should both be passed indirectly.
4struct S {
5  ~S();
6  short s;
7};
8
9// CHECK: define void @_Z1fv(%struct.S* noalias sret %
10S f() { return S(); }
11// CHECK: define void @_Z1f1S(%struct.S*)
12void f(S) { }
13
14// Non-trivial dtors, should both be passed indirectly.
15class C {
16public:
17  ~C();
18  double c;
19};
20
21// CHECK: define void @_Z1gv(%class.C* noalias sret %
22C g() { return C(); }
23
24// CHECK: define void @_Z1f1C(%class.C*)
25void f(C) { }
26
27
28
29
30// PR7058 - Missing byval on MI thunk definition.
31
32// CHECK: define void @_ZThn4_N18BasicAliasAnalysis13getModRefInfoE8CallSite
33// ...
34// CHECK: %struct.CallSite* align 4 byval %CS)
35struct CallSite {
36  unsigned Ptr;
37  CallSite(unsigned XX) : Ptr(XX) {}
38};
39
40struct AliasAnalysis {
41  virtual void xyz();
42  virtual void getModRefInfo(CallSite CS) = 0;
43};
44
45struct ModulePass {
46  virtual void xx();
47};
48
49struct BasicAliasAnalysis : public ModulePass, public AliasAnalysis {
50  void getModRefInfo(CallSite CS);
51};
52
53void BasicAliasAnalysis::getModRefInfo(CallSite CS) {
54}
55
56// Check various single element struct type conditions.
57//
58// PR7098.
59
60// CHECK: define i64 @_Z2f0v()
61struct s0_0 { int x; };
62struct s0_1 : s0_0 { int* y; };
63s0_1 f0() { return s0_1(); }
64
65// CHECK: define i32 @_Z2f1v()
66struct s1_0 { int x; };
67struct s1_1 : s1_0 { };
68s1_1 f1() { return s1_1(); }
69
70// CHECK: define double @_Z2f2v()
71struct s2_0 { double x; };
72struct s2_1 : s2_0 { };
73s2_1 f2() { return s2_1(); }
74
75// CHECK: define double @_Z2f3v()
76struct s3_0 { };
77struct s3_1 { double x; };
78struct s3_2 : s3_0, s3_1 { };
79s3_2 f3() { return s3_2(); }
80
81// CHECK: define i64 @_Z2f4v()
82struct s4_0 { float x; };
83struct s4_1 { float x; };
84struct s4_2 : s4_0, s4_1 { };
85s4_2 f4() { return s4_2(); }
86
87// CHECK: define i32* @_Z2f5v()
88struct s5 { s5(); int &x; };
89s5 f5() { return s5(); }
90
91// CHECK: define i32 @_Z4f6_0M2s6i(i32 %a)
92// CHECK: define i64 @_Z4f6_1M2s6FivE({ i32, i32 }* align 4 byval)
93// FIXME: It would be nice to avoid byval on the previous case.
94struct s6 {};
95typedef int s6::* s6_mdp;
96typedef int (s6::*s6_mfp)();
97s6_mdp f6_0(s6_mdp a) { return a; }
98s6_mfp f6_1(s6_mfp a) { return a; }
99
100// CHECK: define double @_Z2f7v()
101struct s7_0 { unsigned : 0; };
102struct s7_1 { double x; };
103struct s7 : s7_0, s7_1 { };
104s7 f7() { return s7(); }
105
106// CHECK: define void @_Z2f8v(%struct.s8* noalias sret %agg.result)
107struct s8_0 { };
108struct s8_1 { double x; };
109struct s8 { s8_0 a; s8_1 b; };
110s8 f8() { return s8(); }
111
112// CHECK: define void @_Z2f9v(%struct.s9* noalias sret %agg.result)
113struct s9_0 { unsigned : 0; };
114struct s9_1 { double x; };
115struct s9 { s9_0 a; s9_1 b; };
116s9 f9() { return s9(); }
117