1; RUN: llc %s -O2 -print-after-isel -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=0 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK0 < %t 2; RUN: llc %s -O2 -print-after-isel -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=2 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK2 < %t 3; RUN: llc %s -O2 -print-after-isel -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=4 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK4 < %t 4; RUN: llc %s -O2 -print-after-isel -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=8 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK8 < %t 5 6declare void @ext(i32, i32) 7 8define i32 @jt2(i32 %a, i32 %b) { 9entry: 10 switch i32 %a, label %return [ 11 i32 1, label %bb1 12 i32 3, label %bb2 13 ] 14; CHECK-LABEL: function jt2: 15; CHECK0-NEXT: Jump Tables: 16; CHECK2-NEXT: Jump Tables: 17; CHECK4-NOT: {{^}}Jump Tables: 18; CHECK8-NOT: {{^}}Jump Tables: 19 20bb1: tail call void @ext(i32 1, i32 0) br label %return 21bb2: tail call void @ext(i32 2, i32 2) br label %return 22 23return: ret i32 %b 24} 25 26define i32 @jt4(i32 %a, i32 %b) { 27entry: 28 switch i32 %a, label %return [ 29 i32 1, label %bb1 30 i32 2, label %bb2 31 i32 3, label %bb3 32 i32 5, label %bb4 33 ] 34; CHECK-LABEL: function jt4: 35; CHECK0-NEXT: Jump Tables: 36; CHECK2-NEXT: Jump Tables: 37; CHECK4-NEXT: Jump Tables: 38; CHECK8-NOT: {{^}}Jump Tables: 39 40bb1: tail call void @ext(i32 1, i32 0) br label %return 41bb2: tail call void @ext(i32 3, i32 2) br label %return 42bb3: tail call void @ext(i32 4, i32 4) br label %return 43bb4: tail call void @ext(i32 5, i32 6) br label %return 44 45return: ret i32 %b 46} 47 48define i32 @jt8(i32 %a, i32 %b) { 49entry: 50 switch i32 %a, label %return [ 51 i32 1, label %bb1 52 i32 2, label %bb2 53 i32 3, label %bb3 54 i32 4, label %bb4 55 i32 5, label %bb5 56 i32 6, label %bb6 57 i32 7, label %bb7 58 i32 9, label %bb8 59 ] 60; CHECK-LABEL: function jt8: 61; CHECK-NEXT: Jump Tables: 62 63bb1: tail call void @ext(i32 1, i32 0) br label %return 64bb2: tail call void @ext(i32 2, i32 2) br label %return 65bb3: tail call void @ext(i32 3, i32 4) br label %return 66bb4: tail call void @ext(i32 4, i32 6) br label %return 67bb5: tail call void @ext(i32 5, i32 8) br label %return 68bb6: tail call void @ext(i32 6, i32 10) br label %return 69bb7: tail call void @ext(i32 7, i32 12) br label %return 70bb8: tail call void @ext(i32 8, i32 14) br label %return 71 72return: ret i32 %b 73} 74