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1 // RUN: %clang_cc1 -triple x86_64-linux-android -emit-llvm -O -o - %s \
2 // RUN:    | FileCheck %s --check-prefix=ANDROID --check-prefix=CHECK
3 // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -O -o - %s \
4 // RUN:    | FileCheck %s --check-prefix=GNU --check-prefix=CHECK
5 // RUN: %clang_cc1 -triple x86_64 -emit-llvm -O -o - %s \
6 // RUN:    | FileCheck %s --check-prefix=GNU --check-prefix=CHECK
7 // NaCl is an example of a target for which long double is the same as double.
8 // RUN: %clang_cc1 -triple x86_64-nacl -emit-llvm -O -o - %s \
9 // RUN:    | FileCheck %s --check-prefix=NACL --check-prefix=CHECK
10 
11 // Android uses fp128 for long double but other x86_64 targets use x86_fp80.
12 
13 long double dataLD = 1.0L;
14 // ANDROID: @dataLD = global fp128 0xL00000000000000003FFF000000000000, align 16
15 // GNU: @dataLD = global x86_fp80 0xK3FFF8000000000000000, align 16
16 
17 long double _Complex dataLDC = {1.0L, 1.0L};
18 // ANDROID: @dataLDC = global { fp128, fp128 } { fp128 0xL00000000000000003FFF000000000000, fp128 0xL00000000000000003FFF000000000000 }, align 16
19 // GNU: @dataLDC = global { x86_fp80, x86_fp80 } { x86_fp80 0xK3FFF8000000000000000, x86_fp80 0xK3FFF8000000000000000 }, align 16
20 
TestLD(long double x)21 long double TestLD(long double x) {
22   return x * x;
23 // ANDROID: define fp128 @TestLD(fp128 %x)
24 // GNU: define x86_fp80 @TestLD(x86_fp80 %x)
25 // NACL: define double @TestLD(double %x)
26 }
27 
TestLDC(long double _Complex x)28 long double _Complex TestLDC(long double _Complex x) {
29   return x * x;
30 // ANDROID: define void @TestLDC({ fp128, fp128 }* {{.*}}, { fp128, fp128 }* {{.*}} %x)
31 // GNU: define { x86_fp80, x86_fp80 } @TestLDC({ x86_fp80, x86_fp80 }* {{.*}} %x)
32 // NACL: define { double, double } @TestLDC(double %x{{.*}}, double %x{{.*}})
33 }
34 
35 typedef __builtin_va_list va_list;
36 
TestGetVarInt(va_list ap)37 int TestGetVarInt(va_list ap) {
38   return __builtin_va_arg(ap, int);
39 // Since int can be passed in memory or register there are two branches.
40 // CHECK:   define i32 @TestGetVarInt(
41 // CHECK:   br label
42 // CHECK:   br label
43 // CHECK:   = phi
44 // CHECK:   ret i32
45 }
46 
TestGetVarDouble(va_list ap)47 double TestGetVarDouble(va_list ap) {
48   return __builtin_va_arg(ap, double);
49 // Since double can be passed in memory or register there are two branches.
50 // CHECK:   define double @TestGetVarDouble(
51 // CHECK:   br label
52 // CHECK:   br label
53 // CHECK:   = phi
54 // CHECK:   ret double
55 }
56 
TestGetVarLD(va_list ap)57 long double TestGetVarLD(va_list ap) {
58   return __builtin_va_arg(ap, long double);
59 // fp128 and double can be passed in memory or in register, but x86_fp80 is in
60 // memory.
61 // ANDROID: define fp128 @TestGetVarLD(
62 // GNU:     define x86_fp80 @TestGetVarLD(
63 // NACL:     define double @TestGetVarLD(
64 // ANDROID: br label
65 // ANDROID: br label
66 // NACL: br
67 // ANDROID: = phi
68 // GNU-NOT: br
69 // GNU-NOT: = phi
70 // NACL: = phi
71 // ANDROID: ret fp128
72 // GNU:     ret x86_fp80
73 }
74 
TestGetVarLDC(va_list ap)75 long double _Complex TestGetVarLDC(va_list ap) {
76   return __builtin_va_arg(ap, long double _Complex);
77 // Pair of fp128 or x86_fp80 are passed as struct in memory.
78 // ANDROID:   define void @TestGetVarLDC({ fp128, fp128 }* {{.*}}, %struct.__va_list_tag*
79 // GNU:       define { x86_fp80, x86_fp80 } @TestGetVarLDC(
80 // Pair of double can go in SSE registers or memory
81 // NACL:       define { double, double } @TestGetVarLDC(
82 // ANDROID-NOT: br
83 // GNU-NOT: br
84 // NACL: br
85 // ANDROID-NOT: phi
86 // GNU-NOT: phi
87 // NACL: phi
88 // ANDROID:   ret void
89 // GNU:       ret { x86_fp80, x86_fp80 }
90 // NACL:       ret { double, double }
91 }
92 
93 void TestVarArg(const char *s, ...);
94 
TestPassVarInt(int x)95 void TestPassVarInt(int x) {
96   TestVarArg("A", x);
97 // CHECK: define void @TestPassVarInt(i32 %x)
98 // CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, i32 %x)
99 }
100 
TestPassVarFloat(float x)101 void TestPassVarFloat(float x) {
102   TestVarArg("A", x);
103 // CHECK: define void @TestPassVarFloat(float %x)
104 // CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, double %
105 }
106 
TestPassVarDouble(double x)107 void TestPassVarDouble(double x) {
108   TestVarArg("A", x);
109 // CHECK: define void @TestPassVarDouble(double %x)
110 // CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, double %x
111 }
112 
TestPassVarLD(long double x)113 void TestPassVarLD(long double x) {
114   TestVarArg("A", x);
115 // ANDROID: define void @TestPassVarLD(fp128 %x)
116 // ANDROID: call {{.*}} @TestVarArg(i8* {{.*}}, fp128 %x
117 // GNU: define void @TestPassVarLD(x86_fp80 %x)
118 // GNU: call {{.*}} @TestVarArg(i8* {{.*}}, x86_fp80 %x
119 // NACL: define void @TestPassVarLD(double %x)
120 // NACL: call {{.*}} @TestVarArg(i8* {{.*}}, double %x
121 }
122 
TestPassVarLDC(long double _Complex x)123 void TestPassVarLDC(long double _Complex x) {
124   TestVarArg("A", x);
125 // ANDROID:      define void @TestPassVarLDC({ fp128, fp128 }* {{.*}} %x)
126 // ANDROID:      store fp128 %{{.*}}, fp128* %
127 // ANDROID-NEXT: store fp128 %{{.*}}, fp128* %
128 // ANDROID-NEXT: call {{.*}} @TestVarArg(i8* {{.*}}, { fp128, fp128 }* {{.*}} %
129 // GNU:          define void @TestPassVarLDC({ x86_fp80, x86_fp80 }* {{.*}} %x)
130 // GNU:          store x86_fp80 %{{.*}}, x86_fp80* %
131 // GNU-NEXT:     store x86_fp80 %{{.*}}, x86_fp80* %
132 // GNU-NEXT:   call {{.*}} @TestVarArg(i8* {{.*}}, { x86_fp80, x86_fp80 }* {{.*}} %
133 // NACL:      define void @TestPassVarLDC(double %x{{.*}}, double %x{{.*}})
134 // NACL: call {{.*}} @TestVarArg(i8* {{.*}}, double %x{{.*}}, double %x{{.*}})
135 }
136