1; RUN: llc -mtriple=aarch64-linux-gnu -o - %s | FileCheck %s 2 3; The purpose of this test is to check that an FMOV instruction that 4; only materializes an immediate is not MachineLICM'd out of a loop. 5; We check this in two ways: by looking for the FMOV inside the loop, 6; and also by checking that we're not spilling any FP callee-saved 7; registers. 8 9%struct.Node = type { ptr, ptr } 10 11define void @process_nodes(ptr %0) { 12; CHECK-LABEL: process_nodes: 13; CHECK-NOT: stp {{d[0-9]+}} 14; CHECK-LABEL: .LBB0_2: 15; CHECK: fmov s0, #1.00000000 16; CHECK: bl do_it 17entry: 18 %1 = icmp eq ptr %0, null 19 br i1 %1, label %exit, label %loop 20 21loop: 22 %2 = phi ptr [ %4, %loop ], [ %0, %entry ] 23 tail call void @do_it(float 1.000000e+00, ptr nonnull %2) 24 %3 = getelementptr inbounds %struct.Node, ptr %2, i64 0, i32 0 25 %4 = load ptr, ptr %3, align 8 26 %5 = icmp eq ptr %4, null 27 br i1 %5, label %exit, label %loop 28 29exit: 30 ret void 31} 32 33declare void @do_it(float, ptr) 34