Add filetest for statically out-of-bound heap addresses.

This commit is contained in:
Tyler McMullen
2018-01-18 15:32:58 -08:00
committed by Jakob Stoklund Olesen
parent df210bfdea
commit 14e39db428

View File

@@ -65,6 +65,27 @@ ebb0(v0: i32, v999: i64):
return v4
}
function %staticheap_static_oob_sm64(i32, i64 vmctx) -> f32 spiderwasm {
gv0 = vmctx+64
heap0 = static gv0, min 0x1000, bound 0x1000_0000, guard 0x8000_0000
ebb0(v0: i32, v999: i64):
; Everything after the obviously OOB access should be eliminated, leaving
; the `trap heap_oob` instruction as the terminator of the Ebb and moving
; the remainder of the instructions into an inaccessible Ebb.
; check: $ebb0(
; nextln: trap heap_oob
; check: ebb1:
; nextln: v2 = iconst.i64 0
; nextln: v3 = load.f32 v2+16
; nextln: return v3
; nextln: }
v1 = heap_addr.i64 heap0, v0, 0x1000_0001
v2 = load.f32 v1+16
return v2
}
; SpiderMonkey VM-style static 4+2 GB heap.
; Offsets >= 2 GB do require a boundscheck.
function %staticheap_sm64(i32, i64 vmctx) -> f32 spiderwasm {