; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 ; RUN: opt -p dse -S %s | FileCheck %s target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64" define void @widget(ptr %a) { ; CHECK-LABEL: define void @widget( ; CHECK-SAME: ptr [[A:%.*]]) { ; CHECK-NEXT: bb: ; CHECK-NEXT: [[CALL1:%.*]] = tail call noalias ptr @malloc(i64 0) ; CHECK-NEXT: store ptr [[CALL1]], ptr [[A]], align 8 ; CHECK-NEXT: [[LOAD:%.*]] = load ptr, ptr [[A]], align 8 ; CHECK-NEXT: [[LOAD2:%.*]] = load i32, ptr [[LOAD]], align 8 ; CHECK-NEXT: [[GETELEMENTPTR:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR3:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 1 ; CHECK-NEXT: [[GETELEMENTPTR4:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 8 ; CHECK-NEXT: store i16 0, ptr [[GETELEMENTPTR4]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR5:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 12 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[LOAD6:%.*]] = load i32, ptr inttoptr (i64 4 to ptr), align 4 ; CHECK-NEXT: br label [[BB48:%.*]] ; CHECK: bb7: ; CHECK-NEXT: br label [[BB9:%.*]] ; CHECK: bb8: ; CHECK-NEXT: br label [[BB53:%.*]] ; CHECK: bb9: ; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[CALL1]], [[BB7:%.*]] ], [ [[A]], [[BB43:%.*]] ] ; CHECK-NEXT: [[GETELEMENTPTR10:%.*]] = getelementptr i8, ptr [[PHI]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR11:%.*]] = getelementptr i8, ptr [[PHI]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR12:%.*]] = getelementptr i8, ptr [[PHI]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR13:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 1 ; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 1 ; CHECK-NEXT: br label [[BB29:%.*]] ; CHECK: bb14: ; CHECK-NEXT: [[GETELEMENTPTR15:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR10]], i64 8 ; CHECK-NEXT: [[LOAD16:%.*]] = load i16, ptr [[CALL1]], align 4 ; CHECK-NEXT: br i1 false, label [[BB22:%.*]], label [[BB17:%.*]] ; CHECK: bb17: ; CHECK-NEXT: [[GETELEMENTPTR18:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR11]], i64 8 ; CHECK-NEXT: [[LOAD19:%.*]] = load i16, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR20:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8 ; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR21:%.*]] = getelementptr i8, ptr [[PHI]], i64 0 ; CHECK-NEXT: br label [[BB25:%.*]] ; CHECK: bb22: ; CHECK-NEXT: [[GETELEMENTPTR23:%.*]] = getelementptr i8, ptr [[PHI]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR24:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR23]], i64 12 ; CHECK-NEXT: br label [[BB25]] ; CHECK: bb25: ; CHECK-NEXT: [[PHI26:%.*]] = phi ptr [ [[A]], [[BB17]] ], [ [[CALL1]], [[BB22]] ] ; CHECK-NEXT: [[PHI27:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ] ; CHECK-NEXT: [[PHI28:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ] ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB29]] ; CHECK: bb29: ; CHECK-NEXT: [[PHI30:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ] ; CHECK-NEXT: [[PHI31:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ] ; CHECK-NEXT: [[LOAD32:%.*]] = load i8, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[LOAD33:%.*]] = load i8, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR34:%.*]] = getelementptr i8, ptr [[PHI31]], i64 12 ; CHECK-NEXT: [[GETELEMENTPTR35:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12 ; CHECK-NEXT: br label [[BB86:%.*]] ; CHECK: bb36: ; CHECK-NEXT: [[GETELEMENTPTR37:%.*]] = getelementptr i8, ptr [[PHI30]], i64 12 ; CHECK-NEXT: br label [[BB38:%.*]] ; CHECK: bb38: ; CHECK-NEXT: [[GETELEMENTPTR39:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0 ; CHECK-NEXT: [[LOAD40:%.*]] = load i32, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR41:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR37]], i64 0, i64 0 ; CHECK-NEXT: [[LOAD42:%.*]] = load i32, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB38]] ; CHECK: bb43: ; CHECK-NEXT: [[GETELEMENTPTR44:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8 ; CHECK-NEXT: [[LOAD45:%.*]] = load i16, ptr [[CALL1]], align 4 ; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR46:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR47:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 16 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB9]] ; CHECK: bb48: ; CHECK-NEXT: [[GETELEMENTPTR49:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR50:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 1 ; CHECK-NEXT: [[GETELEMENTPTR51:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 8 ; CHECK-NEXT: [[GETELEMENTPTR52:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 12 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB48]] ; CHECK: bb53: ; CHECK-NEXT: [[PHI54:%.*]] = phi ptr [ [[CALL1]], [[BB8:%.*]] ], [ [[A]], [[BB71:%.*]] ] ; CHECK-NEXT: [[GETELEMENTPTR55:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR56:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR57:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR58:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 1 ; CHECK-NEXT: br label [[BB71]] ; CHECK: bb59: ; CHECK-NEXT: [[GETELEMENTPTR60:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0 ; CHECK-NEXT: [[GETELEMENTPTR61:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR60]], i64 12 ; CHECK-NEXT: br label [[BB67:%.*]] ; CHECK: bb62: ; CHECK-NEXT: [[GETELEMENTPTR63:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR56]], i64 8 ; CHECK-NEXT: [[LOAD64:%.*]] = load i16, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR65:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8 ; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR66:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0 ; CHECK-NEXT: br label [[BB67]] ; CHECK: bb67: ; CHECK-NEXT: [[PHI68:%.*]] = phi ptr [ [[A]], [[BB62:%.*]] ], [ [[CALL1]], [[BB59:%.*]] ] ; CHECK-NEXT: [[PHI69:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ] ; CHECK-NEXT: [[PHI70:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ] ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB71]] ; CHECK: bb71: ; CHECK-NEXT: [[PHI72:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ] ; CHECK-NEXT: [[PHI73:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ] ; CHECK-NEXT: [[LOAD74:%.*]] = load i8, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[LOAD75:%.*]] = load i8, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR76:%.*]] = getelementptr i8, ptr [[PHI72]], i64 12 ; CHECK-NEXT: [[GETELEMENTPTR77:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12 ; CHECK-NEXT: [[GETELEMENTPTR78:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR76]], i64 0, i64 0 ; CHECK-NEXT: [[LOAD79:%.*]] = load i32, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR80:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR77]], i64 0, i64 0 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[LOAD81:%.*]] = load i8, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR82:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8 ; CHECK-NEXT: [[LOAD83:%.*]] = load i16, ptr [[CALL1]], align 4 ; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR84:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR85:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 16 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB53]] ; CHECK: bb86: ; CHECK-NEXT: [[GETELEMENTPTR87:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0 ; CHECK-NEXT: [[LOAD88:%.*]] = load i32, ptr [[CALL1]], align 4 ; CHECK-NEXT: [[GETELEMENTPTR89:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR35]], i64 0, i64 0 ; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4 ; CHECK-NEXT: br label [[BB86]] ; bb: %call = tail call ptr @malloc(i64 1) tail call void @llvm.memset.p0.i64(ptr %call, i8 0, i64 1, i1 false) %call1 = tail call noalias ptr @malloc(i64 0) store ptr %call1, ptr %a, align 8 %load = load ptr, ptr %a, align 8 %load2 = load i32, ptr %load, align 8 %getelementptr = getelementptr i8, ptr %call1, i64 0 %getelementptr3 = getelementptr i8, ptr %getelementptr, i64 1 store i8 0, ptr %call1, align 1 %getelementptr4 = getelementptr i8, ptr %getelementptr, i64 8 store i16 0, ptr %getelementptr4, align 4 %getelementptr5 = getelementptr i8, ptr %getelementptr, i64 12 store i32 0, ptr %call1, align 4 %load6 = load i32, ptr inttoptr (i64 4 to ptr), align 4 br label %bb48 bb7: ; No predecessors! br label %bb9 bb8: ; No predecessors! br label %bb53 bb9: ; preds = %bb43, %bb7 %phi = phi ptr [ %call1, %bb7 ], [ %a, %bb43 ] %getelementptr10 = getelementptr i8, ptr %phi, i64 0 %getelementptr11 = getelementptr i8, ptr %phi, i64 0 %getelementptr12 = getelementptr i8, ptr %phi, i64 0 %getelementptr13 = getelementptr i8, ptr %getelementptr12, i64 1 store i8 0, ptr %call1, align 1 br label %bb29 bb14: ; No predecessors! %getelementptr15 = getelementptr i8, ptr %getelementptr10, i64 8 %load16 = load i16, ptr %call1, align 4 br i1 false, label %bb22, label %bb17 bb17: ; preds = %bb14 %getelementptr18 = getelementptr i8, ptr %getelementptr11, i64 8 %load19 = load i16, ptr %call1, align 4 %getelementptr20 = getelementptr i8, ptr %getelementptr12, i64 8 store i16 0, ptr %call1, align 4 %getelementptr21 = getelementptr i8, ptr %phi, i64 0 br label %bb25 bb22: ; preds = %bb14 %getelementptr23 = getelementptr i8, ptr %phi, i64 0 %getelementptr24 = getelementptr i8, ptr %getelementptr23, i64 12 br label %bb25 bb25: ; preds = %bb22, %bb17 %phi26 = phi ptr [ %a, %bb17 ], [ %call1, %bb22 ] %phi27 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ] %phi28 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ] store i32 0, ptr %call1, align 4 br label %bb29 bb29: ; preds = %bb25, %bb9 %phi30 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ] %phi31 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ] %load32 = load i8, ptr %call1, align 4 %load33 = load i8, ptr %call1, align 4 %getelementptr34 = getelementptr i8, ptr %phi31, i64 12 %getelementptr35 = getelementptr i8, ptr %getelementptr12, i64 12 br label %bb86 bb36: ; No predecessors! %getelementptr37 = getelementptr i8, ptr %phi30, i64 12 br label %bb38 bb38: ; preds = %bb38, %bb36 %getelementptr39 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0 %load40 = load i32, ptr %call1, align 4 %getelementptr41 = getelementptr [0 x i32], ptr %getelementptr37, i64 0, i64 0 %load42 = load i32, ptr %call1, align 4 br label %bb38 bb43: ; No predecessors! %getelementptr44 = getelementptr i8, ptr %getelementptr12, i64 8 %load45 = load i16, ptr %call1, align 4 store i16 0, ptr %call1, align 4 store i8 0, ptr %call1, align 4 %getelementptr46 = getelementptr i8, ptr %getelementptr12, i64 12 store i32 0, ptr %call1, align 4 %getelementptr47 = getelementptr i8, ptr %getelementptr12, i64 16 store i32 0, ptr %call1, align 4 br label %bb9 bb48: ; preds = %bb48, %bb %getelementptr49 = getelementptr i8, ptr %call1, i64 0 %getelementptr50 = getelementptr i8, ptr %getelementptr49, i64 1 store i8 0, ptr %call1, align 1 %getelementptr51 = getelementptr i8, ptr %getelementptr49, i64 8 store i16 0, ptr %call1, align 4 %getelementptr52 = getelementptr i8, ptr %getelementptr49, i64 12 store i32 0, ptr %call1, align 4 br label %bb48 bb53: ; preds = %bb71, %bb8 %phi54 = phi ptr [ %call1, %bb8 ], [ %a, %bb71 ] %getelementptr55 = getelementptr i8, ptr %phi54, i64 0 %getelementptr56 = getelementptr i8, ptr %phi54, i64 0 %getelementptr57 = getelementptr i8, ptr %phi54, i64 0 %getelementptr58 = getelementptr i8, ptr %getelementptr57, i64 1 br label %bb71 bb59: ; No predecessors! %getelementptr60 = getelementptr i8, ptr %phi54, i64 0 %getelementptr61 = getelementptr i8, ptr %getelementptr60, i64 12 br label %bb67 bb62: ; No predecessors! %getelementptr63 = getelementptr i8, ptr %getelementptr56, i64 8 %load64 = load i16, ptr %call1, align 4 %getelementptr65 = getelementptr i8, ptr %getelementptr57, i64 8 store i16 0, ptr %call1, align 4 %getelementptr66 = getelementptr i8, ptr %phi54, i64 0 br label %bb67 bb67: ; preds = %bb62, %bb59 %phi68 = phi ptr [ %a, %bb62 ], [ %call1, %bb59 ] %phi69 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ] %phi70 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ] store i32 0, ptr %call1, align 4 br label %bb71 bb71: ; preds = %bb67, %bb53 %phi72 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ] %phi73 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ] %load74 = load i8, ptr %call1, align 4 %load75 = load i8, ptr %call1, align 4 %getelementptr76 = getelementptr i8, ptr %phi72, i64 12 %getelementptr77 = getelementptr i8, ptr %getelementptr57, i64 12 %getelementptr78 = getelementptr [0 x i32], ptr %getelementptr76, i64 0, i64 0 %load79 = load i32, ptr %call1, align 4 %getelementptr80 = getelementptr [0 x i32], ptr %getelementptr77, i64 0, i64 0 store i32 0, ptr %call1, align 4 %load81 = load i8, ptr %call1, align 4 %getelementptr82 = getelementptr i8, ptr %getelementptr57, i64 8 %load83 = load i16, ptr %call1, align 4 store i16 0, ptr %call1, align 4 store i8 0, ptr %call1, align 4 %getelementptr84 = getelementptr i8, ptr %getelementptr57, i64 12 store i32 0, ptr %call1, align 4 %getelementptr85 = getelementptr i8, ptr %getelementptr57, i64 16 store i32 0, ptr %call1, align 4 br label %bb53 bb86: ; preds = %bb86, %bb29 %getelementptr87 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0 %load88 = load i32, ptr %call1, align 4 %getelementptr89 = getelementptr [0 x i32], ptr %getelementptr35, i64 0, i64 0 store i32 0, ptr %call1, align 4 br label %bb86 } declare ptr @malloc(i64) ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write) declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0 attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }