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//@ unit-test: GVN
#![feature(custom_mir, core_intrinsics)]
extern crate core;
use core::intrinsics::mir::*;
#[custom_mir(dialect = "runtime", phase = "initial")]
fn fn0() {
// CHECK-LABEL: fn fn0(
mir! {
let a: usize;
let b: [u128; 6];
let c: ([u128; 6],);
let d: ([u128; 6],);
let x: ();
{
// CHECK: bb0: {
// CHECK-NEXT: _1 = const 1_usize;
// CHECK-NEXT: _2 = [const 42_u128; 6];
// CHECK-NEXT: _2[1 of 2] = const 1_u128;
// CHECK-NEXT: _3 = (_2,);
// CHECK-NEXT: _4 = _3;
// CHECK-NEXT: _5 = fn1((_3.0: [u128; 6]), _3)
a = 1_usize;
b = [42; 6];
b[a] = 1;
c = (b,);
d = c;
Call(x = fn1(Move(c.0), d), ReturnTo(bb1), UnwindUnreachable())
}
bb1 = {
Return()
}
}
}
#[inline(never)]
fn fn1(a: [u128; 6], mut b: ([u128; 6],)) {
b.0 = [0; 6];
}
fn main() {
fn0();
}
// EMIT_MIR gvn_copy_moves.fn0.GVN.diff
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