1 // RUN: %clang_cc1 -triple wasm32-unknown-unknown -o - -emit-llvm %s | FileCheck %s
5 int test_i32(char *fmt, ...) {
9 int v = va_arg(va, int);
15 // CHECK-LABEL: define i32 @test_i32(i8*{{.*}} %fmt, ...) {{.*}} {
16 // CHECK: [[FMT_ADDR:%[^,=]+]] = alloca i8*, align 4
17 // CHECK: [[VA:%[^,=]+]] = alloca i8*, align 4
18 // CHECK: [[V:%[^,=]+]] = alloca i32, align 4
19 // CHECK: store i8* %fmt, i8** [[FMT_ADDR]], align 4
20 // CHECK: [[VA1:%[^,=]+]] = bitcast i8** [[VA]] to i8*
21 // CHECK: call void @llvm.va_start(i8* [[VA1]])
22 // CHECK: [[ARGP_CUR:%[^,=]+]] = load i8*, i8** [[VA]], align 4
23 // CHECK: [[ARGP_NEXT:%[^,=]+]] = getelementptr inbounds i8, i8* [[ARGP_CUR]], i32 4
24 // CHECK: store i8* [[ARGP_NEXT]], i8** [[VA]], align 4
25 // CHECK: [[R3:%[^,=]+]] = bitcast i8* [[ARGP_CUR]] to i32*
26 // CHECK: [[R4:%[^,=]+]] = load i32, i32* [[R3]], align 4
27 // CHECK: store i32 [[R4]], i32* [[V]], align 4
28 // CHECK: [[VA2:%[^,=]+]] = bitcast i8** [[VA]] to i8*
29 // CHECK: call void @llvm.va_end(i8* [[VA2]])
30 // CHECK: [[R5:%[^,=]+]] = load i32, i32* [[V]], align 4
31 // CHECK: ret i32 [[R5]]
34 long long test_i64(char *fmt, ...) {
38 long long v = va_arg(va, long long);
44 // CHECK-LABEL: define i64 @test_i64(i8*{{.*}} %fmt, ...) {{.*}} {
45 // CHECK: [[FMT_ADDR:%[^,=]+]] = alloca i8*, align 4
46 // CHECK: [[VA:%[^,=]+]] = alloca i8*, align 4
47 // CHECK: [[V:%[^,=]+]] = alloca i64, align 8
48 // CHECK: store i8* %fmt, i8** [[FMT_ADDR]], align 4
49 // CHECK: [[VA1:%[^,=]+]] = bitcast i8** [[VA]] to i8*
50 // CHECK: call void @llvm.va_start(i8* [[VA1]])
51 // CHECK: [[ARGP_CUR:%[^,=]+]] = load i8*, i8** [[VA]], align 4
52 // CHECK: [[R0:%[^,=]+]] = ptrtoint i8* [[ARGP_CUR]] to i32
53 // CHECK: [[R1:%[^,=]+]] = add i32 [[R0]], 7
54 // CHECK: [[R2:%[^,=]+]] = and i32 [[R1]], -8
55 // CHECK: [[ARGP_CUR_ALIGNED:%[^,=]+]] = inttoptr i32 [[R2]] to i8*
56 // CHECK: [[ARGP_NEXT:%[^,=]+]] = getelementptr inbounds i8, i8* [[ARGP_CUR_ALIGNED]], i32 8
57 // CHECK: store i8* [[ARGP_NEXT]], i8** [[VA]], align 4
58 // CHECK: [[R3:%[^,=]+]] = bitcast i8* [[ARGP_CUR_ALIGNED]] to i64*
59 // CHECK: [[R4:%[^,=]+]] = load i64, i64* [[R3]], align 8
60 // CHECK: store i64 [[R4]], i64* [[V]], align 8
61 // CHECK: [[VA2:%[^,=]+]] = bitcast i8** [[VA]] to i8*
62 // CHECK: call void @llvm.va_end(i8* [[VA2]])
63 // CHECK: [[R5:%[^,=]+]] = load i64, i64* [[V]], align 8
64 // CHECK: ret i64 [[R5]]
73 struct S test_struct(char *fmt, ...) {
77 struct S v = va_arg(va, struct S);
83 // CHECK: define void @test_struct([[STRUCT_S:%[^,=]+]]*{{.*}} noalias sret [[AGG_RESULT:%.*]], i8*{{.*}} %fmt, ...) {{.*}} {
84 // CHECK: [[FMT_ADDR:%[^,=]+]] = alloca i8*, align 4
85 // CHECK: [[VA:%[^,=]+]] = alloca i8*, align 4
86 // CHECK: store i8* %fmt, i8** [[FMT_ADDR]], align 4
87 // CHECK: [[VA1:%[^,=]+]] = bitcast i8** [[VA]] to i8*
88 // CHECK: call void @llvm.va_start(i8* [[VA1]])
89 // CHECK: [[ARGP_CUR:%[^,=]+]] = load i8*, i8** [[VA]], align 4
90 // CHECK: [[ARGP_NEXT:%[^,=]+]] = getelementptr inbounds i8, i8* [[ARGP_CUR]], i32 12
91 // CHECK: store i8* [[ARGP_NEXT]], i8** [[VA]], align 4
92 // CHECK: [[R3:%[^,=]+]] = bitcast i8* [[ARGP_CUR]] to [[STRUCT_S]]*
93 // CHECK: [[R4:%[^,=]+]] = bitcast [[STRUCT_S]]* [[AGG_RESULT]] to i8*
94 // CHECK: [[R5:%[^,=]+]] = bitcast [[STRUCT_S]]* [[R3]] to i8*
95 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[R4]], i8* align 4 [[R5]], i32 12, i1 false)
96 // CHECK: [[VA2:%[^,=]+]] = bitcast i8** [[VA]] to i8*
97 // CHECK: call void @llvm.va_end(i8* [[VA2]])