| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -basic-aa -dse -S | FileCheck %s |
| |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| |
| define void @second_store_smaller_1(i32* noalias %P, i1 %c) { |
| ; CHECK-LABEL: @second_store_smaller_1( |
| ; CHECK-NEXT: store i32 0, i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| %P.i16 = bitcast i32* %P to i16* |
| store i16 0, i16* %P.i16 |
| ret void |
| } |
| |
| define void @second_store_smaller_2(i32* noalias %P, i1 %c) { |
| ; CHECK-LABEL: @second_store_smaller_2( |
| ; CHECK-NEXT: store i32 12345, i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| %P.i16 = bitcast i32* %P to i16* |
| store i16 12345, i16* %P.i16 |
| ret void |
| } |
| |
| declare void @use(i16) readnone |
| declare void @use.i8(i8) readnone |
| |
| define void @second_store_smaller_3(i32* noalias %P, i1 %c) { |
| ; CHECK-LABEL: @second_store_smaller_3( |
| ; CHECK-NEXT: store i32 1, i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: [[P_I16:%.*]] = bitcast i32* [[P]] to i16* |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[L1:%.*]] = load i16, i16* [[P_I16]], align 2 |
| ; CHECK-NEXT: call void @use(i16 [[L1]]) |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: store i16 -31073, i16* [[P_I16]], align 2 |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| %P.i16 = bitcast i32* %P to i16* |
| br i1 %c, label %bb1, label %bb2 |
| |
| bb1: |
| %l1 = load i16, i16* %P.i16 |
| call void @use(i16 %l1) |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| store i16 -31073, i16* %P.i16 |
| ret void |
| } |
| |
| define void @second_store_smaller_4(i32* noalias %P, i1 %c) { |
| ; CHECK-LABEL: @second_store_smaller_4( |
| ; CHECK-NEXT: store i32 1, i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[P_I8:%.*]] = bitcast i32* [[P]] to i8* |
| ; CHECK-NEXT: [[L1:%.*]] = load i8, i8* [[P_I8]], align 1 |
| ; CHECK-NEXT: call void @use.i8(i8 [[L1]]) |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[P_I16:%.*]] = bitcast i32* [[P]] to i16* |
| ; CHECK-NEXT: store i16 -31073, i16* [[P_I16]], align 2 |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| br i1 %c, label %bb1, label %bb2 |
| |
| bb1: |
| %P.i8 = bitcast i32* %P to i8* |
| %l1 = load i8, i8* %P.i8 |
| call void @use.i8(i8 %l1) |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| %P.i16 = bitcast i32* %P to i16* |
| store i16 -31073, i16* %P.i16 |
| ret void |
| } |
| |
| define void @second_store_smaller_5(i32* noalias %P, i16 %x, i1 %c) { |
| ; CHECK-LABEL: @second_store_smaller_5( |
| ; CHECK-NEXT: store i32 1, i32* [[P:%.*]], align 4 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[P_I16:%.*]] = bitcast i32* [[P]] to i16* |
| ; CHECK-NEXT: store i16 [[X:%.*]], i16* [[P_I16]], align 2 |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| %P.i16 = bitcast i32* %P to i16* |
| store i16 %x, i16* %P.i16 |
| ret void |
| } |
| |
| define void @second_store_bigger(i32* noalias %P, i1 %c) { |
| ; CHECK-LABEL: @second_store_bigger( |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[P_I64:%.*]] = bitcast i32* [[P:%.*]] to i64* |
| ; CHECK-NEXT: store i64 0, i64* [[P_I64]], align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 1, i32* %P |
| br i1 %c, label %bb1, label %bb2 |
| bb1: |
| br label %bb3 |
| bb2: |
| br label %bb3 |
| bb3: |
| %P.i64 = bitcast i32* %P to i64* |
| store i64 0, i64* %P.i64 |
| ret void |
| } |