; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes='loop(loop-rotate),instcombine' -enable-knowledge-retention -S < %s | FileCheck %s %0 = type { ptr } define ptr @f1(ptr %i0) local_unnamed_addr { ; CHECK-LABEL: @f1( ; CHECK-NEXT: bb: ; CHECK: br label [[BB3:%.*]] ; CHECK: bb3: ; CHECK-NEXT: [[I1:%.*]] = phi ptr [ %i0, [[BB:%.*]] ], [ [[I5:%.*]], [[BB3]] ] ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[I1]]) ] ; CHECK-NEXT: [[I5]] = load ptr, ptr [[I1]], align 8 ; CHECK-NEXT: [[I2:%.*]] = icmp eq ptr [[I5]], null ; CHECK-NEXT: br i1 [[I2]], label [[BB6:%.*]], label [[BB3]] ; CHECK: bb6: ; CHECK-NEXT: ret ptr undef ; bb: br label %bb1 bb1: %i = phi ptr [ %i0, %bb ], [ %i5, %bb3 ] %i2 = icmp eq ptr %i, null br i1 %i2, label %bb6, label %bb3 bb3: call void @llvm.assume(i1 true) [ "nonnull"(ptr %i) ] %i5 = load ptr, ptr %i, align 8 br label %bb1 bb6: ret ptr undef } declare void @llvm.assume(i1)