1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2 ; RUN: llc < %s -mtriple=riscv32 -target-abi=ilp32f -mattr=+zfa \
3 ; RUN: | FileCheck %s --check-prefix=RV32
4 ; RUN: llc < %s -mtriple=riscv64 -target-abi=lp64f -mattr=+zfa \
5 ; RUN: | FileCheck %s --check-prefix=RV64
7 ; The purpose of this test is to check that an FLI instruction that
8 ; materializes an immediate is not MachineLICM'd out of a loop.
10 %struct.Node = type { ptr, ptr }
12 define void @process_nodes(ptr %0) nounwind {
13 ; RV32-LABEL: process_nodes:
14 ; RV32: # %bb.0: # %entry
15 ; RV32-NEXT: beqz a0, .LBB0_4
16 ; RV32-NEXT: # %bb.1: # %loop.preheader
17 ; RV32-NEXT: addi sp, sp, -16
18 ; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
19 ; RV32-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
20 ; RV32-NEXT: mv s0, a0
21 ; RV32-NEXT: .LBB0_2: # %loop
22 ; RV32-NEXT: # =>This Inner Loop Header: Depth=1
23 ; RV32-NEXT: fli.s fa0, 1.0
24 ; RV32-NEXT: mv a0, s0
25 ; RV32-NEXT: call do_it
26 ; RV32-NEXT: lw s0, 0(s0)
27 ; RV32-NEXT: bnez s0, .LBB0_2
29 ; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
30 ; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
31 ; RV32-NEXT: addi sp, sp, 16
32 ; RV32-NEXT: .LBB0_4: # %exit
35 ; RV64-LABEL: process_nodes:
36 ; RV64: # %bb.0: # %entry
37 ; RV64-NEXT: beqz a0, .LBB0_4
38 ; RV64-NEXT: # %bb.1: # %loop.preheader
39 ; RV64-NEXT: addi sp, sp, -16
40 ; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
41 ; RV64-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
42 ; RV64-NEXT: mv s0, a0
43 ; RV64-NEXT: .LBB0_2: # %loop
44 ; RV64-NEXT: # =>This Inner Loop Header: Depth=1
45 ; RV64-NEXT: fli.s fa0, 1.0
46 ; RV64-NEXT: mv a0, s0
47 ; RV64-NEXT: call do_it
48 ; RV64-NEXT: ld s0, 0(s0)
49 ; RV64-NEXT: bnez s0, .LBB0_2
51 ; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
52 ; RV64-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
53 ; RV64-NEXT: addi sp, sp, 16
54 ; RV64-NEXT: .LBB0_4: # %exit
57 %1 = icmp eq ptr %0, null
58 br i1 %1, label %exit, label %loop
61 %2 = phi ptr [ %4, %loop ], [ %0, %entry ]
62 tail call void @do_it(float 1.000000e+00, ptr nonnull %2)
63 %3 = getelementptr inbounds %struct.Node, ptr %2, i64 0, i32 0
64 %4 = load ptr, ptr %3, align 8
65 %5 = icmp eq ptr %4, null
66 br i1 %5, label %exit, label %loop
72 declare void @do_it(float, ptr)