Files
wasmtime/cranelift/docs/example.cton
Jakob Stoklund Olesen 3b71a27632 Add heaps to the Cretonne IL.
Add preamble syntax for declaring static and dynamic heaps, and update
the langref section on heaps. Add IR support for heap references.

Remove the heap_load and heap_store as discussed in #144. We will use
heap_addr along with native load and store instructions in their place.

Add the heap_addr instruction and document its bounds checking
semantics.
2017-08-23 14:15:59 -07:00

34 lines
769 B
Plaintext

test verifier
function %average(i32, i32) -> f32 native {
ss1 = local 8 ; Stack slot for ``sum``.
ebb1(v1: i32, v2: i32):
v3 = f64const 0x0.0
stack_store v3, ss1
brz v2, ebb3 ; Handle count == 0.
v4 = iconst.i32 0
jump ebb2(v4)
ebb2(v5: i32):
v6 = imul_imm v5, 4
v7 = iadd v1, v6
v8 = load.f32 v7 ; array[i]
v9 = fpromote.f64 v8
v10 = stack_load.f64 ss1
v11 = fadd v9, v10
stack_store v11, ss1
v12 = iadd_imm v5, 1
v13 = icmp ult v12, v2
brnz v13, ebb2(v12) ; Loop backedge.
v14 = stack_load.f64 ss1
v15 = fcvt_from_uint.f64 v2
v16 = fdiv v14, v15
v17 = fdemote.f32 v16
return v17
ebb3:
v100 = f32const +NaN
return v100
}