1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=loop-unroll -S %s | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 5target triple = "arm64-apple-ios5.0.0" 6 7; The loop in the function only contains a few instructions, but they will get 8; lowered to a very large amount of target instructions. 9define void @loop_with_large_vector_ops(i32 %i, ptr %A, ptr %B) { 10; CHECK-LABEL: @loop_with_large_vector_ops( 11; CHECK-NEXT: entry: 12; CHECK-NEXT: br label [[LOOP:%.*]] 13; CHECK: loop: 14; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 15; CHECK-NEXT: [[A_GEP:%.*]] = getelementptr <225 x double>, ptr [[A:%.*]], i32 [[IV]] 16; CHECK-NEXT: [[LV_1:%.*]] = load <225 x double>, ptr [[A_GEP]], align 8 17; CHECK-NEXT: [[B_GEP:%.*]] = getelementptr <225 x double>, ptr [[A]], i32 [[IV]] 18; CHECK-NEXT: [[LV_2:%.*]] = load <225 x double>, ptr [[B_GEP]], align 8 19; CHECK-NEXT: [[MUL:%.*]] = fmul <225 x double> [[LV_1]], [[LV_2]] 20; CHECK-NEXT: store <225 x double> [[MUL]], ptr [[B_GEP]], align 8 21; CHECK-NEXT: [[IV_NEXT]] = add nuw i32 [[IV]], 1 22; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[IV_NEXT]], 10 23; CHECK-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]] 24; CHECK: exit: 25; CHECK-NEXT: ret void 26; 27entry: 28 br label %loop 29 30loop: 31 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 32 %A.gep = getelementptr <225 x double>, ptr %A, i32 %iv 33 %lv.1 = load <225 x double>, ptr %A.gep, align 8 34 %B.gep = getelementptr <225 x double>, ptr %A, i32 %iv 35 %lv.2 = load <225 x double>, ptr %B.gep, align 8 36 %mul = fmul <225 x double> %lv.1, %lv.2 37 store <225 x double> %mul, ptr %B.gep, align 8 38 %iv.next = add nuw i32 %iv, 1 39 %cmp = icmp ult i32 %iv.next, 10 40 br i1 %cmp, label %loop, label %exit 41 42exit: 43 ret void 44} 45