| ; 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) |
