Add more heap expansion tests.
@@ -4,6 +4,7 @@ set is_64bit
isa intel
; regex: V=v\d+
+; regex: EBB=ebb\d+
function %vmctx(i64 vmctx) -> i64 {
gv1 = vmctx-16
@@ -50,3 +51,27 @@ ebb0(v0: i32, v999: i64):
v4 = fadd v2, v3
return v4
}
+
+; SpiderMonkey VM-style static 4+2 GB heap.
+; Offsets >= 2 GB do require a boundscheck.
+function %staticheap_sm64(i32, i64 vmctx) -> f32 spiderwasm {
+ gv0 = vmctx+64
+ heap0 = static gv0, min 0x1000, bound 0x1_0000_0000, guard 0x8000_0000
+
+ebb0(v0: i32, v999: i64):
+ ; check: $ebb0(
+ v1 = heap_addr.i64 heap0, v0, 0x8000_0000
+ ; Boundscheck code
+ ; check: $(oob=$V) = icmp
+ ; nextln: brz $oob, $(ok=$EBB)
+ ; nextln: trap
+ ; check: $ok:
+ ; Checks here are assuming that no pipehole opts fold the load offsets.
+ ; nextln: $(xoff=$V) = uextend.i64 $v0
+ ; nextln: $(haddr=$V) = iadd_imm.i64 $v999, 64
+ ; nextln: $(hbase=$V) = load.i64 $haddr
+ ; nextln: $v1 = iadd $hbase, $xoff
+ v2 = load.f32 v1+0x7fff_ffff
+ ; nextln: $v2 = load.f32 $v1+0x7fff_ffff
+ return v2
+}
