a20c852148
Also, say "guard-offset pages" rather than just "guard pages" to describe the region of a heap which is never accessible and which exists to support optimizations for heap accesses with offsets. And, introduce a `Uimm64` immediate type, and make all heap fields use `Uimm64` instead of `Imm64` since they really are unsigned.
83 lines
2.3 KiB
Plaintext
83 lines
2.3 KiB
Plaintext
test cat
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test verifier
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function %vmglobal(i64 vmctx) -> i32 {
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gv3 = vmctx
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; check: gv3 = vmctx
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ebb0(v0: i64):
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v1 = global_value.i32 gv3
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; check: v1 = global_value.i32 gv3
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return v1
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}
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function %load_and_add_imm(i64 vmctx) -> i32 {
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gv2 = vmctx
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gv3 = load.i32 notrap aligned gv2-72
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gv4 = iadd_imm.i32 gv3, -32
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; check: gv2 = vmctx
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; check: gv3 = load.i32 notrap aligned gv2-72
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; check: gv4 = iadd_imm.i32 gv3, -32
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ebb0(v0: i64):
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v1 = global_value.i32 gv4
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; check: v1 = global_value.i32 gv4
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return v1
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}
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; Refer to a global value before it's been declared.
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function %backref(i64 vmctx) -> i32 {
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gv0 = iadd_imm.i32 gv1, -32
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; check: gv0 = iadd_imm.i32 gv1, -32
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gv1 = load.i32 notrap aligned gv2
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; check: gv1 = load.i32 notrap aligned gv2
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gv2 = vmctx
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; check: gv2 = vmctx
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ebb0(v0: i64):
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v1 = global_value.i32 gv1
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return v1
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}
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function %symbol() -> i32 {
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gv0 = symbol %something
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; check: gv0 = symbol %something
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gv1 = symbol u8:9
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; check: gv1 = symbol u8:9
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ebb0:
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v0 = global_value.i32 gv0
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; check: v0 = global_value.i32 gv0
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v1 = global_value.i32 gv1
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; check: v1 = global_value.i32 gv1
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v2 = bxor v0, v1
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return v2
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}
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; Declare static heaps.
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function %sheap(i32, i64 vmctx) -> i64 {
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heap1 = static gv5, min 0x1_0000, bound 0x1_0000_0000, offset_guard 0x8000_0000
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heap2 = static gv5, offset_guard 0x1000, bound 0x1_0000
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gv4 = vmctx
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gv5 = iadd_imm.i64 gv4, 64
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; check: heap1 = static gv5, min 0x0001_0000, bound 0x0001_0000_0000, offset_guard 0x8000_0000
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; check: heap2 = static gv5, min 0, bound 0x0001_0000, offset_guard 4096
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ebb0(v1: i32, v2: i64):
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v3 = heap_addr.i64 heap1, v1, 0
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; check: v3 = heap_addr.i64 heap1, v1, 0
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return v3
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}
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; Declare dynamic heaps.
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function %dheap(i32, i64 vmctx) -> i64 {
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heap1 = dynamic gv5, min 0x1_0000, bound gv6, offset_guard 0x8000_0000
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heap2 = dynamic gv5, bound gv6, offset_guard 0x1000
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gv4 = vmctx
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gv5 = iadd_imm.i64 gv4, 64
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gv6 = iadd_imm.i64 gv4, 72
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; check: heap1 = dynamic gv5, min 0x0001_0000, bound gv6, offset_guard 0x8000_0000
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; check: heap2 = dynamic gv5, min 0, bound gv6, offset_guard 4096
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ebb0(v1: i32, v2: i64):
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v3 = heap_addr.i64 heap2, v1, 0
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; check: v3 = heap_addr.i64 heap2, v1, 0
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return v3
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}
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