1 # RUN: llc -o - %s -mtriple=aarch64 -run-pass branch-folder -verify-machineinstrs | FileCheck %s 2 # Check that BranchFolding pass is able to hoist a common instruction into a block with a single branch instruction. 3 name: func 4 tracksRegLiveness: true 5 body: | 6 bb.0: 7 ; CHECK-LABEL: name: func 8 ; CHECK-LABEL: bb.0: 9 ; CHECK: $x0 = ADDXri $x0, 1, 0 10 ; CHECK: CBZX $x1, %bb.2 11 liveins: $x0, $x1 12 CBZX $x1, %bb.2 13 14 bb.1: 15 ; CHECK-LABEL: bb.1: 16 ; CHECK-NOT: $x0 = ADDXri $x0, 1, 0 17 liveins: $x0 18 $x0 = ADDXri $x0, 1, 0 19 $x0 = ADDXri $x0, 2, 0 20 RET_ReallyLR implicit $x0 21 22 bb.2: 23 ; CHECK-LABEL: bb.2: 24 ; CHECK-NOT: $x0 = ADDXri $x0, 1, 0 25 liveins: $x0 26 $x0 = ADDXri $x0, 1, 0 27 $x0 = ADDXri $x0, 3, 0 28 RET_ReallyLR implicit $x0 29 ... 30
