cb48ea406e
This PR switches the default backend on x86, for both the `cranelift-codegen` crate and for Wasmtime, to the new (`MachInst`-style, `VCode`-based) backend that has been under development and testing for some time now. The old backend is still available by default in builds with the `old-x86-backend` feature, or by requesting `BackendVariant::Legacy` from the appropriate APIs. As part of that switch, it adds some more runtime-configurable plumbing to the testing infrastructure so that tests can be run using the appropriate backend. `clif-util test` is now capable of parsing a backend selector option from filetests and instantiating the correct backend. CI has been updated so that the old x86 backend continues to run its tests, just as we used to run the new x64 backend separately. At some point, we will remove the old x86 backend entirely, once we are satisfied that the new backend has not caused any unforeseen issues and we do not need to revert.
36 lines
681 B
Plaintext
36 lines
681 B
Plaintext
test regalloc
|
|
target x86_64 legacy haswell
|
|
|
|
function %value_aliases(i32, f32, i64 vmctx) baldrdash_system_v {
|
|
gv0 = vmctx
|
|
heap0 = static gv0, min 0x0001_0000, bound 0x0001_0000_0000, offset_guard 0x8000_0000
|
|
|
|
block0(v0: i32, v1: f32, v2: i64):
|
|
v3 = iconst.i32 0
|
|
jump block3(v3)
|
|
|
|
block3(v4: i32):
|
|
v5 = heap_addr.i64 heap0, v4, 1
|
|
v6 = load.f32 v5
|
|
v7 -> v1
|
|
v8 = fdiv v6, v7
|
|
v9 = heap_addr.i64 heap0, v4, 1
|
|
store v8, v9
|
|
v10 = iconst.i32 4
|
|
v11 = iadd v4, v10
|
|
v12 -> v0
|
|
v13 = icmp ult v11, v12
|
|
v14 = bint.i32 v13
|
|
brnz v14, block3(v11)
|
|
jump block4
|
|
|
|
block4:
|
|
jump block2
|
|
|
|
block2:
|
|
jump block1
|
|
|
|
block1:
|
|
return
|
|
}
|