bf4ae3bb2e
See #144 for discussion. - Add a new GlobalVar entity type both in Python and Rust. - Define a UnaryGlobalVar instruction format containing a GlobalVar reference. - Add a globalvar.rs module defining the GlobalVarData with support for 'vmctx' and 'deref' global variable kinds. Langref: Add a section about global variables and the global_addr instruction. Parser: Add support for the UnaryGlobalVar instruction format as well as global variable declarations in the preamble.
38 lines
743 B
Plaintext
38 lines
743 B
Plaintext
test cat
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test verifier
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function %vmglobal() -> i32 {
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gv3 = vmctx+16
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; check: $gv3 = vmctx+16
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gv4 = vmctx+0
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; check: $gv4 = vmctx
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; not: +0
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gv5 = vmctx -256
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; check: $gv5 = vmctx-256
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ebb0:
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v1 = global_addr.i32 gv3
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; check: $v1 = global_addr.i32 $gv3
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return v1
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}
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function %deref() -> i32 {
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gv3 = vmctx+16
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gv4 = deref(gv3)-32
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; check: $gv4 = deref($gv3)-32
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ebb0:
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v1 = global_addr.i32 gv4
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; check: $v1 = global_addr.i32 $gv4
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return v1
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}
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; Refer to a global variable before it's been declared.
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function %backref() -> i32 {
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gv1 = deref(gv2)-32
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; check: $gv1 = deref($gv2)-32
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gv2 = vmctx+16
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; check: $gv2 = vmctx+16
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ebb0:
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v1 = global_addr.i32 gv1
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return v1
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}
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