1// RUN: %clang_cc1 -triple wasm32-unknown-unknown -o - -emit-llvm %s | FileCheck %s 2 3#include <stdarg.h> 4 5int test_i32(char *fmt, ...) { 6 va_list va; 7 8 va_start(va, fmt); 9 int v = va_arg(va, int); 10 va_end(va); 11 12 return v; 13} 14 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]] 32// CHECK: } 33 34long long test_i64(char *fmt, ...) { 35 va_list va; 36 37 va_start(va, fmt); 38 long long v = va_arg(va, long long); 39 va_end(va); 40 41 return v; 42} 43 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]] 65// CHECK: } 66 67struct S { 68 int x; 69 int y; 70 int z; 71}; 72 73struct S test_struct(char *fmt, ...) { 74 va_list va; 75 76 va_start(va, fmt); 77 struct S v = va_arg(va, struct S); 78 va_end(va); 79 80 return v; 81} 82 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: [[V:%[^,=]+]] = alloca [[STRUCT_S]], align 4 87// CHECK: store i8* %fmt, i8** [[FMT_ADDR]], align 4 88// CHECK: [[VA1:%[^,=]+]] = bitcast i8** [[VA]] to i8* 89// CHECK: call void @llvm.va_start(i8* [[VA1]]) 90// CHECK: [[ARGP_CUR:%[^,=]+]] = load i8*, i8** [[VA]], align 4 91// CHECK: [[ARGP_NEXT:%[^,=]+]] = getelementptr inbounds i8, i8* [[ARGP_CUR]], i32 12 92// CHECK: store i8* [[ARGP_NEXT]], i8** [[VA]], align 4 93// CHECK: [[R3:%[^,=]+]] = bitcast i8* [[ARGP_CUR]] to [[STRUCT_S]]* 94// CHECK: [[R4:%[^,=]+]] = bitcast [[STRUCT_S]]* [[V]] to i8* 95// CHECK: [[R5:%[^,=]+]] = bitcast [[STRUCT_S]]* [[R3]] to i8* 96// CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[R4]], i8* [[R5]], i32 12, i32 4, i1 false) 97// CHECK: [[VA2:%[^,=]+]] = bitcast i8** [[VA]] to i8* 98// CHECK: call void @llvm.va_end(i8* [[VA2]]) 99// CHECK: [[R6:%[^,=]+]] = bitcast [[STRUCT_S]]* %agg.result to i8* 100// CHECK: [[R7:%[^,=]+]] = bitcast [[STRUCT_S]]* [[V]] to i8* 101// CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[R6]], i8* [[R7]], i32 12, i32 4, i1 false) 102// CHECK: ret void 103// CHECK: } 104