| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |
| ; RUN: opt -lsr-complexity-limit=50 -loop-reduce -S %s | FileCheck %s | |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" | |
| define void @overflow1(i64 %a) { | |
| ; CHECK-LABEL: @overflow1( | |
| ; CHECK-NEXT: bb: | |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[A:%.*]], -1 | |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[A]], -9223372036854775808 | |
| ; CHECK-NEXT: br label [[BB1:%.*]] | |
| ; CHECK: bb1: | |
| ; CHECK-NEXT: [[LSR_IV1:%.*]] = phi i64 [ [[LSR_IV_NEXT2:%.*]], [[BB1]] ], [ [[TMP1]], [[BB:%.*]] ] | |
| ; CHECK-NEXT: [[LSR_IV:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[BB1]] ], [ [[TMP0]], [[BB]] ] | |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp ne i64 [[LSR_IV1]], 0 | |
| ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], true | |
| ; CHECK-NEXT: [[LSR_IV_NEXT]] = add i64 [[LSR_IV]], 1 | |
| ; CHECK-NEXT: [[LSR_IV_NEXT2]] = add i64 [[LSR_IV1]], 1 | |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[BB1]], label [[BB7:%.*]] | |
| ; CHECK: bb7: | |
| ; CHECK-NEXT: [[TMP9:%.*]] = and i64 [[LSR_IV_NEXT]], 1 | |
| ; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[TMP9]], 0 | |
| ; CHECK-NEXT: unreachable | |
| ; | |
| bb: | |
| br label %bb1 | |
| bb1: ; preds = %bb1, %bb | |
| %tmp = phi i64 [ %a, %bb ], [ %tmp6, %bb1 ] | |
| %tmp4 = icmp ne i64 %tmp, -9223372036854775808 | |
| %tmp5 = and i1 %tmp4, 1 | |
| %tmp6 = add i64 %tmp, 1 | |
| br i1 %tmp5, label %bb1, label %bb7 | |
| bb7: ; preds = %bb1 | |
| %tmp9 = and i64 %tmp, 1 | |
| %tmp10 = icmp eq i64 %tmp9, 0 | |
| unreachable | |
| } |