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wasmtime/cranelift/filetests/regalloc/ghost-param.clif
2018-07-13 09:15:16 -07:00

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test regalloc
target x86_64 haswell
; This test case would create an EBB parameter that was a ghost value.
; The coalescer would insert a copy of the ghost value, leading to verifier errors.
;
; We don't allow EBB parameters to be ghost values any longer.
;
; Test case by binaryen fuzzer!
function %pr215(i64 vmctx [%rdi]) system_v {
ebb0(v0: i64):
v10 = iconst.i64 0
v1 = bitcast.f64 v10
jump ebb5(v1)
ebb5(v9: f64):
v11 = iconst.i64 0xffff_ffff_ff9a_421a
v4 = bitcast.f64 v11
v6 = iconst.i32 0
v7 = iconst.i32 1
brnz v7, ebb4(v6)
v8 = iconst.i32 0
jump ebb7(v8)
ebb7(v5: i32):
brnz v5, ebb3(v4)
jump ebb5(v4)
ebb4(v3: i32):
brnz v3, ebb2
jump ebb3(v9)
ebb3(v2: f64):
jump ebb2
ebb2:
jump ebb1
ebb1:
return
}