1 // RUN: %clang_cc1 -faltivec -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
2
3 #include <stdarg.h>
4
5 struct test1 { int x; int y; };
6 struct test2 { int x; int y; } __attribute__((aligned (16)));
7 struct test3 { int x; int y; } __attribute__((aligned (32)));
8 struct test4 { int x; int y; int z; };
9 struct test5 { int x[17]; };
10 struct test6 { int x[17]; } __attribute__((aligned (16)));
11 struct test7 { int x[17]; } __attribute__((aligned (32)));
12
13 // CHECK: define void @test1(i32 signext %x, i64 %y.coerce)
test1(int x,struct test1 y)14 void test1 (int x, struct test1 y)
15 {
16 }
17
18 // CHECK: define void @test2(i32 signext %x, [1 x i128] %y.coerce)
test2(int x,struct test2 y)19 void test2 (int x, struct test2 y)
20 {
21 }
22
23 // CHECK: define void @test3(i32 signext %x, [2 x i128] %y.coerce)
test3(int x,struct test3 y)24 void test3 (int x, struct test3 y)
25 {
26 }
27
28 // CHECK: define void @test4(i32 signext %x, [2 x i64] %y.coerce)
test4(int x,struct test4 y)29 void test4 (int x, struct test4 y)
30 {
31 }
32
33 // CHECK: define void @test5(i32 signext %x, %struct.test5* byval align 8 %y)
test5(int x,struct test5 y)34 void test5 (int x, struct test5 y)
35 {
36 }
37
38 // CHECK: define void @test6(i32 signext %x, %struct.test6* byval align 16 %y)
test6(int x,struct test6 y)39 void test6 (int x, struct test6 y)
40 {
41 }
42
43 // This case requires run-time realignment of the incoming struct
44 // CHECK: define void @test7(i32 signext %x, %struct.test7* byval align 16)
45 // CHECK: %y = alloca %struct.test7, align 32
46 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
test7(int x,struct test7 y)47 void test7 (int x, struct test7 y)
48 {
49 }
50
51 // CHECK: define void @test1va(%struct.test1* noalias sret %agg.result, i32 signext %x, ...)
52 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
53 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[CUR]], i64 8
54 // CHECK: store i8* %[[NEXT]], i8** %ap
55 // CHECK: bitcast i8* %[[CUR]] to %struct.test1*
test1va(int x,...)56 struct test1 test1va (int x, ...)
57 {
58 struct test1 y;
59 va_list ap;
60 va_start(ap, x);
61 y = va_arg (ap, struct test1);
62 va_end(ap);
63 return y;
64 }
65
66 // CHECK: define void @test2va(%struct.test2* noalias sret %agg.result, i32 signext %x, ...)
67 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
68 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
69 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
70 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
71 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
72 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[ALIGN]], i64 16
73 // CHECK: store i8* %[[NEXT]], i8** %ap
74 // CHECK: bitcast i8* %[[ALIGN]] to %struct.test2*
test2va(int x,...)75 struct test2 test2va (int x, ...)
76 {
77 struct test2 y;
78 va_list ap;
79 va_start(ap, x);
80 y = va_arg (ap, struct test2);
81 va_end(ap);
82 return y;
83 }
84
85 // CHECK: define void @test3va(%struct.test3* noalias sret %agg.result, i32 signext %x, ...)
86 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
87 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
88 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
89 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
90 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
91 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[ALIGN]], i64 32
92 // CHECK: store i8* %[[NEXT]], i8** %ap
93 // CHECK: bitcast i8* %[[ALIGN]] to %struct.test3*
test3va(int x,...)94 struct test3 test3va (int x, ...)
95 {
96 struct test3 y;
97 va_list ap;
98 va_start(ap, x);
99 y = va_arg (ap, struct test3);
100 va_end(ap);
101 return y;
102 }
103
104 // CHECK: define void @test4va(%struct.test4* noalias sret %agg.result, i32 signext %x, ...)
105 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
106 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[CUR]], i64 16
107 // CHECK: store i8* %[[NEXT]], i8** %ap
108 // CHECK: bitcast i8* %[[CUR]] to %struct.test4*
test4va(int x,...)109 struct test4 test4va (int x, ...)
110 {
111 struct test4 y;
112 va_list ap;
113 va_start(ap, x);
114 y = va_arg (ap, struct test4);
115 va_end(ap);
116 return y;
117 }
118
119 // CHECK: define void @testva_longdouble(%struct.test_longdouble* noalias sret %agg.result, i32 signext %x, ...)
120 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
121 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[CUR]], i64 16
122 // CHECK: store i8* %[[NEXT]], i8** %ap
123 // CHECK: bitcast i8* %[[CUR]] to %struct.test_longdouble*
124 struct test_longdouble { long double x; };
testva_longdouble(int x,...)125 struct test_longdouble testva_longdouble (int x, ...)
126 {
127 struct test_longdouble y;
128 va_list ap;
129 va_start(ap, x);
130 y = va_arg (ap, struct test_longdouble);
131 va_end(ap);
132 return y;
133 }
134
135 // CHECK: define void @testva_vector(%struct.test_vector* noalias sret %agg.result, i32 signext %x, ...)
136 // CHECK: %[[CUR:[^ ]+]] = load i8** %ap
137 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
138 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
139 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
140 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
141 // CHECK: %[[NEXT:[^ ]+]] = getelementptr i8* %[[ALIGN]], i64 16
142 // CHECK: store i8* %[[NEXT]], i8** %ap
143 // CHECK: bitcast i8* %[[ALIGN]] to %struct.test_vector*
144 struct test_vector { vector int x; };
testva_vector(int x,...)145 struct test_vector testva_vector (int x, ...)
146 {
147 struct test_vector y;
148 va_list ap;
149 va_start(ap, x);
150 y = va_arg (ap, struct test_vector);
151 va_end(ap);
152 return y;
153 }
154
155