f2ebabaf5f
The code to compute the address of a global variable depends on the kind of variable, so custom legalization is required. - Add a legalizer::globalvar module which exposes an expand_global_addr() function. This module is likely to grow as we add more types of global variables. - Add a ArgumentPurpose::VMContext enumerator. This is used to represent special 'vmctx' arguments that are used as base pointers for vmctx globals.
30 lines
556 B
Plaintext
30 lines
556 B
Plaintext
; Test the legalization of memory objects.
|
|
test legalizer
|
|
set is_64bit
|
|
isa intel
|
|
|
|
; regex: V=v\d+
|
|
|
|
function %vmctx(i64 vmctx) -> i64 {
|
|
gv1 = vmctx-16
|
|
|
|
ebb1(v1: i64):
|
|
v2 = global_addr.i64 gv1
|
|
; check: $v2 = iadd_imm $v1, -16
|
|
return v2
|
|
; check: return $v2
|
|
}
|
|
|
|
function %deref(i64 vmctx) -> i64 {
|
|
gv1 = vmctx-16
|
|
gv2 = deref(gv1)+32
|
|
|
|
ebb1(v1: i64):
|
|
v2 = global_addr.i64 gv2
|
|
; check: $(a1=$V) = iadd_imm $v1, -16
|
|
; check: $(p1=$V) = load.i64 $a1
|
|
; check: $v2 = iadd_imm $p1, 32
|
|
return v2
|
|
; check: return $v2
|
|
}
|