| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame^] | 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 | |
| 4 | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| 5 | |
| 6 | define 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 | ; |
| 25 | bb: |
| 26 | br label %bb1 |
| 27 | |
| 28 | bb1: ; 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 | |
| 35 | bb7: ; preds = %bb1 |
| 36 | %tmp9 = and i64 %tmp, 1 |
| 37 | %tmp10 = icmp eq i64 %tmp9, 0 |
| 38 | unreachable |
| 39 | } |