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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=arm64-apple-ios --global-isel=0 | FileCheck %s3 4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"5target triple = "arm64-apple-ios"6 7declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg)8 9; TargetLowering::SimplifySetCC wants to swap the operands of a SETCC to10; canonicalize the constant to the RHS. The bug here was that it did so whether11; or not the RHS was already a constant, leading to an infinite loop.12define <16 x i1> @setcc_swap_infloop(ptr %arg) {13; CHECK-LABEL: setcc_swap_infloop:14; CHECK: ; %bb.0:15; CHECK-NEXT: movi.16b v1, #116; CHECK-NEXT: mov x8, xzr17; CHECK-NEXT: ldr q0, [x8]18; CHECK-NEXT: cmeq.16b v0, v0, #019; CHECK-NEXT: cmeq.16b v2, v1, #020; CHECK-NEXT: str q1, [x8]21; CHECK-NEXT: mov w8, #16 ; =0x1022; CHECK-NEXT: str q1, [x8]23; CHECK-NEXT: orr.16b v0, v0, v224; CHECK-NEXT: ret25 call void @llvm.memset.p0.i64(ptr nonnull null, i8 1, i64 32, i1 false)26 %v = getelementptr inbounds i8, ptr null, i64 1627 %v14 = load <16 x i8>, ptr undef, align 3228 %v15 = icmp eq <16 x i8> %v14, zeroinitializer29 %v16 = load <16 x i8>, ptr %v, align 1630 %v17 = icmp eq <16 x i8> %v16, zeroinitializer31 %v20 = or <16 x i1> %v15, %v1732 ret <16 x i1> %v2033}34