; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; CHECK-LABEL: test_with_zext ; CHECK: NoAlias: i8* %a, i8* %b define void @test_with_zext() { %1 = tail call ptr @malloc(i64 120) %a = getelementptr inbounds i8, ptr %1, i64 8 %2 = getelementptr inbounds i8, ptr %1, i64 16 %3 = zext i32 3 to i64 %b = getelementptr inbounds i8, ptr %2, i64 %3 load i8, ptr %a load i8, ptr %b ret void } ; CHECK-LABEL: test_with_lshr ; CHECK: NoAlias: i8* %a, i8* %b define void @test_with_lshr(i64 %i) { %1 = tail call ptr @malloc(i64 120) %a = getelementptr inbounds i8, ptr %1, i64 8 %2 = getelementptr inbounds i8, ptr %1, i64 16 %3 = lshr i64 %i, 2 %b = getelementptr inbounds i8, ptr %2, i64 %3 load i8, ptr %a load i8, ptr %b ret void } ; CHECK-LABEL: test_with_lshr_different_sizes ; CHECK: NoAlias: i8* %m1, i16* %m2.idx define void @test_with_lshr_different_sizes(i64 %i) { %m0 = tail call ptr @malloc(i64 120) %m1 = getelementptr inbounds i8, ptr %m0, i64 1 load i8, ptr %m1 %m2 = getelementptr inbounds i8, ptr %m0, i64 2 %idx = lshr i64 %i, 2 %m2.idx = getelementptr inbounds i16, ptr %m2, i64 %idx load i16, ptr %m2.idx ret void } ; CHECK-LABEL: test_with_a_loop ; CHECK: NoAlias: i8* %a, i8* %b define void @test_with_a_loop(ptr %mem) { br label %for.loop for.loop: %i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ] %a = getelementptr inbounds i8, ptr %mem, i64 8 load i8, ptr %a %a.plus1 = getelementptr inbounds i8, ptr %mem, i64 16 %i.64 = zext i32 %i to i64 %b = getelementptr inbounds i8, ptr %a.plus1, i64 %i.64 load i8, ptr %b %i.plus1 = add nuw nsw i32 %i, 1 %cmp = icmp eq i32 %i.plus1, 10 br i1 %cmp, label %for.loop.exit, label %for.loop for.loop.exit: ret void } ; CHECK-LABEL: test_with_varying_base_pointer_in_loop ; CHECK: NoAlias: i8* %a, i8* %b define void @test_with_varying_base_pointer_in_loop(ptr %mem.orig) { br label %for.loop for.loop: %mem = phi ptr [ %mem.orig, %0 ], [ %mem.plus1, %for.loop ] %i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ] %a = getelementptr inbounds i8, ptr %mem, i64 8 load i8, ptr %a %a.plus1 = getelementptr inbounds i8, ptr %mem, i64 16 %i.64 = zext i32 %i to i64 %b = getelementptr inbounds i8, ptr %a.plus1, i64 %i.64 load i8, ptr %b %i.plus1 = add nuw nsw i32 %i, 1 %mem.plus1 = getelementptr inbounds i8, ptr %mem, i64 8 %cmp = icmp eq i32 %i.plus1, 10 br i1 %cmp, label %for.loop.exit, label %for.loop for.loop.exit: ret void } ; CHECK-LABEL: test_sign_extension ; CHECK: MayAlias: i8* %a, i64* %b.i8 define void @test_sign_extension(i32 %p) { %1 = tail call ptr @malloc(i64 120) %p.64 = zext i32 %p to i64 %a = getelementptr inbounds i8, ptr %1, i64 %p.64 load i8, ptr %a %p.minus1 = add i32 %p, -1 %p.minus1.64 = zext i32 %p.minus1 to i64 %b.i8 = getelementptr inbounds i8, ptr %1, i64 %p.minus1.64 load i64, ptr %b.i8 ret void } ; CHECK-LABEL: test_fe_tools ; CHECK: MayAlias: i32* %a, i32* %b define void @test_fe_tools(ptr %values) { br label %reorder for.loop: %i = phi i32 [ 0, %reorder ], [ %i.next, %for.loop ] %idxprom = zext i32 %i to i64 %b = getelementptr inbounds [8 x i32], ptr %values, i64 0, i64 %idxprom load i32, ptr %b %i.next = add nuw nsw i32 %i, 1 %cmp = icmp eq i32 %i.next, 10 br i1 %cmp, label %for.loop.exit, label %for.loop reorder: %a = getelementptr inbounds [8 x i32], ptr %values, i64 0, i64 1 load i32, ptr %a br label %for.loop for.loop.exit: ret void } @b = global i32 0, align 4 @d = global i32 0, align 4 ; CHECK-LABEL: test_spec2006 ; CHECK: MayAlias: ptr* %x, ptr* %y define void @test_spec2006() { %h = alloca [1 x [2 x ptr]], align 16 %d.val = load i32, ptr @d, align 4 %d.promoted = sext i32 %d.val to i64 %1 = icmp slt i32 %d.val, 2 br i1 %1, label %.lr.ph, label %bb3 .lr.ph: ; preds = %0 br label %bb2 bb2: %i = phi i32 [ %d.val, %.lr.ph ], [ %i.plus1, %bb2 ] %i.promoted = sext i32 %i to i64 %x = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 %d.promoted, i64 %i.promoted load ptr, ptr %x %i.plus1 = add nsw i32 %i, 1 %cmp = icmp slt i32 %i.plus1, 2 br i1 %cmp, label %bb2, label %bb3 bb3: %y = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 0, i64 1 load ptr, ptr %y ret void } ; CHECK-LABEL: test_modulo_analysis_easy_case ; CHECK: NoAlias: ptr* %x, ptr* %y define void @test_modulo_analysis_easy_case(i64 %i) { %h = alloca [1 x [2 x ptr]], align 16 %x = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 %i, i64 0 %y = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 0, i64 1 load ptr, ptr %x load ptr, ptr %y ret void } ; CHECK-LABEL: test_modulo_analysis_in_loop ; CHECK: NoAlias: ptr* %x, ptr* %y define void @test_modulo_analysis_in_loop() { %h = alloca [1 x [2 x ptr]], align 16 br label %for.loop for.loop: %i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ] %i.promoted = sext i32 %i to i64 %x = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 %i.promoted, i64 0 %y = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 0, i64 1 load ptr, ptr %x load ptr, ptr %y %i.plus1 = add nsw i32 %i, 1 %cmp = icmp slt i32 %i.plus1, 2 br i1 %cmp, label %for.loop, label %for.loop.exit for.loop.exit: ret void } ; CHECK-LABEL: test_modulo_analysis_with_global ; CHECK: MayAlias: ptr* %x, ptr* %y define void @test_modulo_analysis_with_global() { %h = alloca [1 x [2 x ptr]], align 16 %b = load i32, ptr @b, align 4 %b.promoted = sext i32 %b to i64 br label %for.loop for.loop: %i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ] %i.promoted = sext i32 %i to i64 %x = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 %i.promoted, i64 %b.promoted %y = getelementptr inbounds [1 x [2 x ptr]], ptr %h, i64 0, i64 0, i64 1 load ptr, ptr %x load ptr, ptr %y %i.plus1 = add nsw i32 %i, 1 %cmp = icmp slt i32 %i.plus1, 2 br i1 %cmp, label %for.loop, label %for.loop.exit for.loop.exit: ret void } ; CHECK-LABEL: test_const_eval ; CHECK: NoAlias: i8* %a, i8* %b define void @test_const_eval(ptr %ptr, i64 %offset) { %a = getelementptr inbounds i8, ptr %ptr, i64 %offset %a.dup = getelementptr inbounds i8, ptr %ptr, i64 %offset %three = zext i32 3 to i64 %b = getelementptr inbounds i8, ptr %a.dup, i64 %three load i8, ptr %a load i8, ptr %b ret void } ; CHECK-LABEL: test_const_eval_scaled ; CHECK: MustAlias: i8* %a, i8* %b define void @test_const_eval_scaled(ptr %ptr) { %three = zext i32 3 to i64 %six = mul i64 %three, 2 %a = getelementptr inbounds i8, ptr %ptr, i64 %six %b = getelementptr inbounds i8, ptr %ptr, i64 6 load i8, ptr %a load i8, ptr %b ret void } ; CHECK-LABEL: Function: foo ; CHECK: MustAlias: float* %arrayidx, float* %arrayidx4.84 define float @foo(ptr %A, float %rend, ptr %wayar) { entry: %x0 = load i32, ptr %A, align 4 %conv = sext i32 %x0 to i64 %mul = shl nsw i64 %conv, 3 %call = tail call ptr @malloc(i64 %mul) %sub = add nsw i32 %x0, -1 %idxprom = sext i32 %sub to i64 %arrayidx = getelementptr inbounds float, ptr %call, i64 %idxprom store float %rend, ptr %arrayidx, align 8 %indvars.iv76.83 = add nsw i64 %conv, -1 %arrayidx4.84 = getelementptr inbounds float, ptr %call, i64 %indvars.iv76.83 %x4 = load float, ptr %arrayidx4.84, align 8 ret float %x4 } ; CHECK-LABEL: Function: test_shl_nuw_zext ; CHECK: MustAlias: i8* %p.1, i8* %p.2 define void @test_shl_nuw_zext(ptr %p, i32 %x) { %shl = shl nuw i32 %x, 1 %shl.ext = zext i32 %shl to i64 %ext = zext i32 %x to i64 %ext.shl = shl nuw i64 %ext, 1 %p.1 = getelementptr i8, ptr %p, i64 %shl.ext %p.2 = getelementptr i8, ptr %p, i64 %ext.shl load i8, ptr %p.1 load i8, ptr %p.2 ret void } ; CHECK-LABEL: Function: test_shl_nsw_sext ; CHECK: MustAlias: i8* %p.1, i8* %p.2 define void @test_shl_nsw_sext(ptr %p, i32 %x) { %shl = shl nsw i32 %x, 1 %shl.ext = sext i32 %shl to i64 %ext = sext i32 %x to i64 %ext.shl = shl nsw i64 %ext, 1 %p.1 = getelementptr i8, ptr %p, i64 %shl.ext %p.2 = getelementptr i8, ptr %p, i64 %ext.shl load i8, ptr %p.1 load i8, ptr %p.2 ret void } ; CHECK-LABEL: Function: test_implicit_sext ; CHECK: MayAlias: i8* %p.1, i8* %p.2 define void @test_implicit_sext(ptr %p, i32 %x) { %add = add i32 %x, 1 %ext = sext i32 %x to i64 %ext.add = add i64 %ext, 1 %p.1 = getelementptr i8, ptr %p, i32 %add %p.2 = getelementptr i8, ptr %p, i64 %ext.add load i8, ptr %p.1 load i8, ptr %p.2 ret void } ; CHECK-LABEL: Function: test_partial_decomposition ; CHECK: MustAlias: i8* %p.1, i8* %p.2 define void @test_partial_decomposition(ptr %p, i32 %x) { %add = add i32 %x, 1 %add.1 = add nsw i32 %add, 1 %add.2 = add nsw i32 %add, 1 %p.1 = getelementptr i8, ptr %p, i32 %add.1 %p.2 = getelementptr i8, ptr %p, i32 %add.2 load i8, ptr %p.1 load i8, ptr %p.2 ret void } ; Function Attrs: nounwind declare noalias ptr @malloc(i64)