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1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 52# RUN: llc -mtriple=armv7-apple-ios --run-pass=branch-folder %s -o - | FileCheck %s3 4## We hoist code from successor blocks, and in abnormal circumstances we can5## have control flow that branches to the same block. Test we handle that6## correctly.7##8## bb.5 (empty fall-through) folds into bb.6, making bb.2 branch to bb.69## unconditionally on a conditional branch (both edges go to bb.6).10## Instructions are hosited from bb.2's successors, which is bb.6 twice,11## along both edges.12 13...14---15name: f_1418_205416tracksRegLiveness: true17noPhis: true18isSSA: false19noVRegs: true20body: |21 ; CHECK-LABEL: name: f_1418_205422 ; CHECK: bb.0:23 ; CHECK-NEXT: successors: %bb.1(0x80000000)24 ; CHECK-NEXT: {{ $}}25 ; CHECK-NEXT: bb.1:26 ; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)27 ; CHECK-NEXT: {{ $}}28 ; CHECK-NEXT: $r0 = MOVr undef $r0, 14 /* CC::al */, $noreg, $noreg29 ; CHECK-NEXT: Bcc %bb.1, 1 /* CC::ne */, undef $cpsr30 ; CHECK-NEXT: {{ $}}31 ; CHECK-NEXT: bb.2:32 ; CHECK-NEXT: successors: %bb.3(0x40000000), %bb.4(0x40000000)33 ; CHECK-NEXT: {{ $}}34 ; CHECK-NEXT: $r0 = MOVr undef $r0, 14 /* CC::al */, $noreg, $noreg35 ; CHECK-NEXT: Bcc %bb.4, 1 /* CC::ne */, undef $cpsr36 ; CHECK-NEXT: {{ $}}37 ; CHECK-NEXT: bb.3:38 ; CHECK-NEXT: BX_RET 14 /* CC::al */, $noreg39 ; CHECK-NEXT: {{ $}}40 ; CHECK-NEXT: bb.4:41 ; CHECK-NEXT: TRAP42 bb.0:43 successors: %bb.144 45 bb.1:46 successors: %bb.3, %bb.247 48 Bcc %bb.3, 1, undef $cpsr49 B %bb.250 51 bb.2:52 successors: %bb.5, %bb.653 54 Bcc %bb.5, 1, undef $cpsr55 B %bb.656 57 bb.3:58 successors: %bb.459 60 $r0 = MOVr undef $r0, 14, $noreg, $noreg61 62 bb.4:63 successors: %bb.164 65 B %bb.166 67 bb.5:68 successors: %bb.669 70 bb.6:71 successors: %bb.8, %bb.772 73 $r0 = MOVr undef $r0, 14, $noreg, $noreg74 $r0 = MOVr undef $r0, 14, $noreg, $noreg75 76 Bcc %bb.7, 1, undef $cpsr77 B %bb.878 79 bb.7:80 successors:81 82 TRAP83 84 bb.8:85 BX_RET 14, _86...87