; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 ; RUN: opt < %s -passes=inline,simplifycfg -S | FileCheck --check-prefix=CUSTOM %s ; RUN: opt < %s -O2 -S | FileCheck --check-prefix=O2 %s define internal ptr @bar(ptr %arg, i1 %arg1) { bb: br i1 %arg1, label %bb4, label %bb2 bb2: %i = load ptr, ptr %arg, align 8 %i3 = getelementptr inbounds i8, ptr %i, i64 1 store ptr %i3, ptr %arg, align 8 br label %bb4 bb4: %i5 = phi ptr [ %i, %bb2 ], [ null, %bb ] ret ptr %i5 } define i32 @foo(ptr %arg, i1 %arg1) { ; CUSTOM-LABEL: define i32 @foo( ; CUSTOM-SAME: ptr [[ARG:%.*]], i1 [[ARG1:%.*]]) { ; CUSTOM-NEXT: [[BB:.*:]] ; CUSTOM-NEXT: [[TMP0:%.*]] = xor i1 [[ARG1]], true ; CUSTOM-NEXT: call void @llvm.assume(i1 [[TMP0]]) ; CUSTOM-NEXT: [[I_I:%.*]] = load ptr, ptr [[ARG]], align 8 ; CUSTOM-NEXT: [[I3_I:%.*]] = getelementptr inbounds i8, ptr [[I_I]], i64 1 ; CUSTOM-NEXT: store ptr [[I3_I]], ptr [[ARG]], align 8 ; CUSTOM-NEXT: [[I2:%.*]] = icmp ne ptr [[I_I]], null ; CUSTOM-NEXT: call void @llvm.assume(i1 [[I2]]) ; CUSTOM-NEXT: [[I3:%.*]] = load i32, ptr [[I_I]], align 4 ; CUSTOM-NEXT: ret i32 [[I3]] ; ; O2-LABEL: define i32 @foo( ; O2-SAME: ptr captures(none) [[ARG:%.*]], i1 [[ARG1:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { ; O2-NEXT: [[BB:.*:]] ; O2-NEXT: [[TMP0:%.*]] = xor i1 [[ARG1]], true ; O2-NEXT: tail call void @llvm.assume(i1 [[TMP0]]) ; O2-NEXT: [[I_I:%.*]] = load ptr, ptr [[ARG]], align 8, !nonnull [[META0:![0-9]+]], !noundef [[META0]] ; O2-NEXT: [[I3_I:%.*]] = getelementptr inbounds nuw i8, ptr [[I_I]], i64 1 ; O2-NEXT: store ptr [[I3_I]], ptr [[ARG]], align 8 ; O2-NEXT: [[I3:%.*]] = load i32, ptr [[I_I]], align 4 ; O2-NEXT: ret i32 [[I3]] ; bb: %i = call ptr @bar(ptr %arg, i1 %arg1) %i2 = icmp ne ptr %i, null call void @llvm.assume(i1 %i2) %i3 = load i32, ptr %i, align 4 ret i32 %i3 } declare void @llvm.assume(i1) ;. ; O2: [[META0]] = !{} ;.