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Reorganize the global value kinds. (#490)

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* Reorganize the global value kinds.

This:
 - renames "deref" global values to "load" and gives it a offset that works
   like the "load" instructions' does
 - adds an explicit "iadd_imm" global value kind, which replaces the
   builtin iadd in "vmctx" and "deref" global values.
 - also renames "globalsym" to "symbol"
This commit is contained in:
Dan Gohman
2018-09-04 21:09:04 -07:00
committed by GitHub
parent 59b83912ba
commit ca9da7702e
30 changed files with 467 additions and 320 deletions
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10
cranelift/filetests/verifier/globals.clif
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@@ -1,17 +1,17 @@
test verifier
target x86_64
function %deref_base_type(i64 vmctx) {
gv0 = vmctx+0
gv1 = deref(gv0): i32
gv2 = deref(gv1): i32 ; error: deref base gv1 has type i32, which is not the pointer type i64
function %load_base_type(i64 vmctx) {
gv0 = vmctx
gv1 = load.i32 notrap aligned gv0
gv2 = load.i32 notrap aligned gv1 ; error: base gv1 has type i32, which is not the pointer type i64
ebb0(v0: i64):
return
}
function %global_value_wrong_type(i64 vmctx) {
gv0 = vmctx+0
gv0 = vmctx
ebb0(v0: i64):
v1 = global_value.i32 gv0 ; error: global_value instruction with type i32 references global value with type i64