1 // RUN: %clang_cc1 -target-feature +altivec -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(%struct.test5) 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(%struct.test6) 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-LABEL: define void @test7(i32 signext %x, %struct.test7* byval(%struct.test7) align 16 %0)
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 align 4 %[[AGG_RESULT:.*]], i32 signext %x, ...)
52 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
53 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 8
54 // CHECK: store i8* %[[NEXT]], i8** %ap
55 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test1*
56 // CHECK: [[DEST:%.*]] = bitcast %struct.test1* %[[AGG_RESULT]] to i8*
57 // CHECK: [[SRC:%.*]] = bitcast %struct.test1* [[T0]] to i8*
58 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[DEST]], i8* align 8 [[SRC]], i64 8, i1 false)
test1va(int x,...)59 struct test1 test1va (int x, ...)
60 {
61 struct test1 y;
62 va_list ap;
63 va_start(ap, x);
64 y = va_arg (ap, struct test1);
65 va_end(ap);
66 return y;
67 }
68
69 // CHECK: define void @test2va(%struct.test2* noalias sret align 16 %[[AGG_RESULT:.*]], i32 signext %x, ...)
70 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
71 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
72 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
73 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
74 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
75 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 16
76 // CHECK: store i8* %[[NEXT]], i8** %ap
77 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test2*
78 // CHECK: [[DEST:%.*]] = bitcast %struct.test2* %[[AGG_RESULT]] to i8*
79 // CHECK: [[SRC:%.*]] = bitcast %struct.test2* [[T0]] to i8*
80 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 [[DEST]], i8* align 16 [[SRC]], i64 16, i1 false)
test2va(int x,...)81 struct test2 test2va (int x, ...)
82 {
83 struct test2 y;
84 va_list ap;
85 va_start(ap, x);
86 y = va_arg (ap, struct test2);
87 va_end(ap);
88 return y;
89 }
90
91 // CHECK: define void @test3va(%struct.test3* noalias sret align 32 %[[AGG_RESULT:.*]], i32 signext %x, ...)
92 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
93 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
94 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
95 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
96 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
97 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 32
98 // CHECK: store i8* %[[NEXT]], i8** %ap
99 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test3*
100 // CHECK: [[DEST:%.*]] = bitcast %struct.test3* %[[AGG_RESULT]] to i8*
101 // CHECK: [[SRC:%.*]] = bitcast %struct.test3* [[T0]] to i8*
102 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 32 [[DEST]], i8* align 16 [[SRC]], i64 32, i1 false)
test3va(int x,...)103 struct test3 test3va (int x, ...)
104 {
105 struct test3 y;
106 va_list ap;
107 va_start(ap, x);
108 y = va_arg (ap, struct test3);
109 va_end(ap);
110 return y;
111 }
112
113 // CHECK: define void @test4va(%struct.test4* noalias sret align 4 %[[AGG_RESULT:.*]], i32 signext %x, ...)
114 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
115 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 16
116 // CHECK: store i8* %[[NEXT]], i8** %ap
117 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test4*
118 // CHECK: [[DEST:%.*]] = bitcast %struct.test4* %[[AGG_RESULT]] to i8*
119 // CHECK: [[SRC:%.*]] = bitcast %struct.test4* [[T0]] to i8*
120 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[DEST]], i8* align 8 [[SRC]], i64 12, i1 false)
test4va(int x,...)121 struct test4 test4va (int x, ...)
122 {
123 struct test4 y;
124 va_list ap;
125 va_start(ap, x);
126 y = va_arg (ap, struct test4);
127 va_end(ap);
128 return y;
129 }
130
131 // CHECK: define void @testva_longdouble(%struct.test_longdouble* noalias sret align 16 %[[AGG_RESULT:.*]], i32 signext %x, ...)
132 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
133 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 16
134 // CHECK: store i8* %[[NEXT]], i8** %ap
135 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test_longdouble*
136 // CHECK: [[DEST:%.*]] = bitcast %struct.test_longdouble* %[[AGG_RESULT]] to i8*
137 // CHECK: [[SRC:%.*]] = bitcast %struct.test_longdouble* [[T0]] to i8*
138 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 [[DEST]], i8* align 8 [[SRC]], i64 16, i1 false)
139 struct test_longdouble { long double x; };
testva_longdouble(int x,...)140 struct test_longdouble testva_longdouble (int x, ...)
141 {
142 struct test_longdouble y;
143 va_list ap;
144 va_start(ap, x);
145 y = va_arg (ap, struct test_longdouble);
146 va_end(ap);
147 return y;
148 }
149
150 // CHECK: define void @testva_vector(%struct.test_vector* noalias sret align 16 %[[AGG_RESULT:.*]], i32 signext %x, ...)
151 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap
152 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64
153 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15
154 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16
155 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8*
156 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 16
157 // CHECK: store i8* %[[NEXT]], i8** %ap
158 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test_vector*
159 // CHECK: [[DEST:%.*]] = bitcast %struct.test_vector* %[[AGG_RESULT]] to i8*
160 // CHECK: [[SRC:%.*]] = bitcast %struct.test_vector* [[T0]] to i8*
161 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 [[DEST]], i8* align 16 [[SRC]], i64 16, i1 false)
162 struct test_vector { vector int x; };
testva_vector(int x,...)163 struct test_vector testva_vector (int x, ...)
164 {
165 struct test_vector y;
166 va_list ap;
167 va_start(ap, x);
168 y = va_arg (ap, struct test_vector);
169 va_end(ap);
170 return y;
171 }
172
173