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wasmtime/cranelift/filetests/domtree/loops.cton
Jakob Stoklund Olesen 7d5f2f0404 Convert the CFG traversal tests to file tests.
Add a "cfg_postorder:" printout to the "test domtree" file tests and use
that to check the computed CFG post-order instead of doing it manually
with Rust code.
2017-12-08 13:58:18 -08:00

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test domtree
function %test(i32) {
ebb0(v0: i32):
brz v0, ebb1 ; dominates: ebb1 ebb3 ebb4 ebb5
jump ebb2 ; dominates: ebb2
ebb1:
jump ebb3
ebb2:
brz v0, ebb4
jump ebb5
ebb3:
jump ebb4
ebb4:
brz v0, ebb3
jump ebb5
ebb5:
brz v0, ebb4
return
}
; Fall-through-first, prune-at-source DFT:
;
; ebb0 {
; ebb0:brz v0, ebb1 {
; ebb0:jump ebb2 {
; ebb2 {
; ebb2:brz v2, ebb2 -
; ebb2:brz v3, ebb1 -
; ebb2:brz v4, ebb4 {
; ebb2: jump ebb5 {
; ebb5 {}
; }
; ebb4 {}
; }
; } ebb2
; }
; ebb1 {
; ebb1:jump ebb3 {
; ebb3 {}
; }
; } ebb1
; }
; } ebb0
;
; check: cfg_postorder:
; sameln: ebb5
; sameln: ebb3
; sameln: ebb4
; sameln: ebb2
; sameln: ebb1
; sameln: ebb0
function %loop2(i32) native {
ebb0(v0: i32):
brz v0, ebb1 ; dominates: ebb1 ebb3 ebb4 ebb5
jump ebb2 ; dominates: ebb2
ebb1:
jump ebb3
ebb2:
brz v0, ebb4
jump ebb5
ebb3:
jump ebb4
ebb4:
brz v0, ebb3
brnz v0, ebb5
jump ebb6 ; dominates: ebb6
ebb5:
brz v0, ebb4
trap user0
ebb6:
jump ebb7 ; dominates: ebb7
ebb7:
return
}
; check: cfg_postorder:
; sameln: ebb5
; sameln: ebb7
; sameln: ebb6
; sameln: ebb3
; sameln: ebb4
; sameln: ebb2
; sameln: ebb1
; sameln: ebb0