1 ; RUN: not llvm-as -o /dev/null %s 2>&1 | FileCheck %s
4 declare void @llvm.gcroot(i8**, i8*)
6 define void @caller_must_use_gc() {
7 ; CHECK: Enclosing function does not use GC.
8 ; CHECK-NEXT: call void @llvm.gcroot(i8** %alloca, i8* null)
10 call void @llvm.gcroot(i8** %alloca, i8* null)
14 define void @must_be_alloca() gc "test" {
15 ; CHECK: llvm.gcroot parameter #1 must be an alloca.
16 ; CHECK-NEXT: call void @llvm.gcroot(i8** null, i8* null)
17 call void @llvm.gcroot(i8** null, i8* null)
21 define void @non_ptr_alloca_null() gc "test" {
22 ; CHECK: llvm.gcroot parameter #1 must either be a pointer alloca, or argument #2 must be a non-null constant.
23 ; CHECK-NEXT: call void @llvm.gcroot(i8** %cast.alloca, i8* null)
25 %cast.alloca = bitcast i32* %alloca to i8**
26 call void @llvm.gcroot(i8** %cast.alloca, i8* null)
30 define void @non_constant_arg1(i8* %arg) gc "test" {
31 ; CHECK: llvm.gcroot parameter #2 must be a constant.
32 ; CHECK-NEXT: call void @llvm.gcroot(i8** %alloca, i8* %arg)
34 call void @llvm.gcroot(i8** %alloca, i8* %arg)
38 define void @non_ptr_alloca_non_null() gc "test" {
39 ; CHECK-NOT: llvm.gcroot parameter
41 %cast.alloca = bitcast i32* %alloca to i8**
42 call void @llvm.gcroot(i8** %cast.alloca, i8* inttoptr (i64 123 to i8*))
46 define void @casted_alloca() gc "test" {
47 ; CHECK-NOT: llvm.gcroot parameter
49 %ptr.cast.alloca = bitcast i32** %alloca to i8**
50 call void @llvm.gcroot(i8** %ptr.cast.alloca, i8* null)