; 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 }