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wasmtime/cranelift/filetests/verifier/heap.clif
Dan Gohman eb439c9a68 Fix legalization of heap_addrs with 32-bit indices. (#480)
This makes several changes:
 - It adds an index_type to heap declarations, allowing heaps to specify the
   type for indexing. This also anticipates 64-bit heap support.

 - It adds a memory_type to deref global values, allowing deref globals to
   have types other than pointers. This is used to allow the bound variable
   in dynamic heaps to have type i32, to match the index type in heaps
   with i32 index type.

 - And, it fixes heap legalization to do the bounds check in the heap's
   index type.
2018-08-28 13:37:33 -07:00

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test verifier
target x86_64
function %heap_base_type(i64 vmctx) {
gv0 = vmctx+0
gv1 = deref(gv0): i32
heap0 = static gv1, guard 0x1000, bound 0x1_0000, index_type i32 ; error: heap base has type i32, which is not the pointer type i64
ebb0(v0: i64):
return
}
function %invalid_base(i64 vmctx) {
gv0 = vmctx+0
heap0 = dynamic gv1, bound gv0, guard 0x1000, index_type i64 ; error: invalid base global value gv1
ebb0(v0: i64):
return
}
function %invalid_bound(i64 vmctx) {
gv0 = vmctx+0
heap0 = dynamic gv0, bound gv1, guard 0x1000, index_type i64 ; error: invalid bound global value gv1
ebb0(v0: i64):
return
}
function %heap_bound_type(i64 vmctx) {
gv0 = vmctx+0
gv1 = deref(gv0): i16
heap0 = dynamic gv1, bound gv1, guard 0x1000, index_type i32 ; error: heap index type i32 differs from the type of its bound, i16
ebb0(v0: i64):
return
}
function %heap_addr_index_type(i64 vmctx, i64) {
gv0 = vmctx+0
heap0 = static gv0, guard 0x1000, bound 0x1_0000, index_type i32
ebb0(v0: i64, v1: i64):
v2 = heap_addr.i64 heap0, v1, 0; error: index type i64 differs from heap index type i32
return
}