xref: /llvm-project/llvm/test/CodeGen/Thumb2/mve-gather-unused.ll (revision b5b663aac17415625340eb29c8010832bfc4c21c)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp -enable-arm-maskedldst %s -o - | FileCheck %s
3
4; This files has some unused gathers, making sure that they do not cause
5; problems as the function gets simplified.
6
7define arm_aapcs_vfpcc void @unused1(<4 x ptr> %offs) {
8; CHECK-LABEL: unused1:
9; CHECK:       @ %bb.0: @ %entry
10; CHECK-NEXT:    bx lr
11entry:
12  %gather = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
13  ret void
14}
15
16define arm_aapcs_vfpcc void @unused2(<4 x ptr> %offs) {
17; CHECK-LABEL: unused2:
18; CHECK:       @ %bb.0: @ %entry
19; CHECK-NEXT:    bx lr
20entry:
21  %gather1 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
22  %gather2 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
23  ret void
24}
25
26define arm_aapcs_vfpcc void @unused2_used(<4 x ptr> %offs) {
27; CHECK-LABEL: unused2_used:
28; CHECK:       @ %bb.0: @ %entry
29; CHECK-NEXT:    bx lr
30entry:
31  %gather1 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
32  %gather2 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
33  %unused = add <4 x i32> %gather1, %gather2
34  ret void
35}
36
37
38declare <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr>, i32, <4 x i1>, <4 x i32>)
39