1; RUN: not llc -mtriple=thumbv8m.main-eabi %s -o - 2>&1 | FileCheck %s 2 3%struct.two_ints = type { i32, i32 } 4%struct.__va_list = type { i8* } 5 6define void @test1(%struct.two_ints* noalias nocapture sret(%struct.two_ints) align 4 %agg.result) "cmse_nonsecure_entry" { 7entry: 8 %0 = bitcast %struct.two_ints* %agg.result to i64* 9 store i64 8589934593, i64* %0, align 4 10 ret void 11} 12; CHECK: error: {{.*}}test1{{.*}}: secure entry function would return value through pointer 13 14define void @test2(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) "cmse_nonsecure_entry" { 15entry: 16 ret void 17} 18; CHECK: error: {{.*}}test2{{.*}}: secure entry function requires arguments on stack 19 20define void @test3(void (i32, i32, i32, i32, i32)* nocapture %p) { 21entry: 22 tail call void %p(i32 1, i32 2, i32 3, i32 4, i32 5) "cmse_nonsecure_call" 23 ret void 24} 25; CHECK: error: {{.*}}test3{{.*}}: call to non-secure function would require passing arguments on stack 26 27 28define void @test4(void (%struct.two_ints*)* nocapture %p) { 29entry: 30 %r = alloca %struct.two_ints, align 4 31 %0 = bitcast %struct.two_ints* %r to i8* 32 call void %p(%struct.two_ints* nonnull sret(%struct.two_ints) align 4 %r) "cmse_nonsecure_call" 33 ret void 34} 35; CHECK: error: {{.*}}test4{{.*}}: call to non-secure function would return value through pointer 36 37declare void @llvm.va_start(i8*) "nounwind" 38 39declare void @llvm.va_end(i8*) "nounwind" 40 41define i32 @test5(i32 %a, ...) "cmse_nonsecure_entry" { 42entry: 43 %vl = alloca %struct.__va_list, align 4 44 %0 = bitcast %struct.__va_list* %vl to i8* 45 call void @llvm.va_start(i8* nonnull %0) 46 %1 = getelementptr inbounds %struct.__va_list, %struct.__va_list* %vl, i32 0, i32 0 47 %argp.cur = load i8*, i8** %1, align 4 48 %argp.next = getelementptr inbounds i8, i8* %argp.cur, i32 4 49 store i8* %argp.next, i8** %1, align 4 50 %2 = bitcast i8* %argp.cur to i32* 51 %3 = load i32, i32* %2, align 4 52 call void @llvm.va_end(i8* nonnull %0) 53 ret i32 %3 54} 55; CHECK: error: {{.*}}test5{{.*}}: secure entry function must not be variadic 56 57define void @test6(void (i32, ...)* nocapture %p) { 58entry: 59 tail call void (i32, ...) %p(i32 1, i32 2, i32 3, i32 4, i32 5) "cmse_nonsecure_call" 60 ret void 61} 62; CHECK: error: {{.*}}test6{{.*}}: call to non-secure function would require passing arguments on stack 63 64define void @neg_test1(void (i32, ...)* nocapture %p) { 65entry: 66 tail call void (i32, ...) %p(i32 1, i32 2, i32 3, i32 4) "cmse_nonsecure_call" 67 ret void 68} 69 70define void @neg_test2(i32 %a, ...) "cmse_nonsecure_entry" { 71entry: 72 ret void 73} 74; CHECK-NOT: error: 75