1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -lsr-complexity-limit=50 -loop-reduce -S %s | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5 6define void @overflow1(i64 %a) { 7; CHECK-LABEL: @overflow1( 8; CHECK-NEXT: bb: 9; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[A:%.*]], -1 10; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[A]], -9223372036854775808 11; CHECK-NEXT: br label [[BB1:%.*]] 12; CHECK: bb1: 13; CHECK-NEXT: [[LSR_IV1:%.*]] = phi i64 [ [[LSR_IV_NEXT2:%.*]], [[BB1]] ], [ [[TMP1]], [[BB:%.*]] ] 14; CHECK-NEXT: [[LSR_IV:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[BB1]] ], [ [[TMP0]], [[BB]] ] 15; CHECK-NEXT: [[TMP4:%.*]] = icmp ne i64 [[LSR_IV1]], 0 16; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], true 17; CHECK-NEXT: [[LSR_IV_NEXT]] = add i64 [[LSR_IV]], 1 18; CHECK-NEXT: [[LSR_IV_NEXT2]] = add i64 [[LSR_IV1]], 1 19; CHECK-NEXT: br i1 [[TMP5]], label [[BB1]], label [[BB7:%.*]] 20; CHECK: bb7: 21; CHECK-NEXT: [[TMP9:%.*]] = and i64 [[LSR_IV_NEXT]], 1 22; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[TMP9]], 0 23; CHECK-NEXT: unreachable 24; 25bb: 26 br label %bb1 27 28bb1: ; preds = %bb1, %bb 29 %tmp = phi i64 [ %a, %bb ], [ %tmp6, %bb1 ] 30 %tmp4 = icmp ne i64 %tmp, -9223372036854775808 31 %tmp5 = and i1 %tmp4, 1 32 %tmp6 = add i64 %tmp, 1 33 br i1 %tmp5, label %bb1, label %bb7 34 35bb7: ; preds = %bb1 36 %tmp9 = and i64 %tmp, 1 37 %tmp10 = icmp eq i64 %tmp9, 0 38 unreachable 39} 40