1 ; RUN: llc -mtriple=aarch64-apple-darwin -aarch64-cbz-offset-bits=3 < %s | FileCheck %s 2 3 ; CHECK-LABEL: _split_block_no_fallthrough: 4 ; CHECK: cmn x{{[0-9]+}}, #5 5 ; CHECK-NEXT: b.le [[B2:LBB[0-9]+_[0-9]+]] 6 7 ; CHECK-NEXT: ; %bb.1: ; %b3 8 ; CHECK: ldr [[LOAD:w[0-9]+]] 9 ; CHECK: cbnz [[LOAD]], [[B8:LBB[0-9]+_[0-9]+]] 10 ; CHECK-NEXT: b [[B7:LBB[0-9]+_[0-9]+]] 11 12 ; CHECK-NEXT: [[B8]]: ; %b8 13 ; CHECK-NEXT: ret 14 15 ; CHECK-NEXT: [[B2]]: ; %b2 16 ; CHECK: mov w{{[0-9]+}}, #93 17 ; CHECK: bl _extfunc 18 ; CHECK: cbz w{{[0-9]+}}, [[B7]] 19 ; CHECK-NEXT: b [[B8]] 20 21 ; CHECK-NEXT: [[B7]]: ; %b7 22 ; CHECK: mov w{{[0-9]+}}, #13 23 ; CHECK: b _extfunc 24 25 define void @split_block_no_fallthrough(i64 %val) #0 { 26 bb: 27 %c0 = icmp sgt i64 %val, -5 28 br i1 %c0, label %b3, label %b2 29 30 b2: 31 %v0 = tail call i32 @extfunc(i32 93) 32 %c1 = icmp eq i32 %v0, 0 33 br i1 %c1, label %b7, label %b8 34 35 b3: 36 %v1 = load volatile i32, i32* undef, align 4 37 %c2 = icmp eq i32 %v1, 0 38 br i1 %c2, label %b7, label %b8 39 40 b7: 41 %tmp1 = tail call i32 @extfunc(i32 13) 42 ret void 43 44 b8: 45 ret void 46 } 47 48 declare i32 @extfunc(i32) #0 49 50 attributes #0 = { nounwind } 51
