; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=instcombine,verify -S < %s | FileCheck %s --check-prefixes=ALL,INSTCOMBINE ; Make sure GVN won't undo the transformation: ; RUN: opt -passes=instcombine,gvn -S < %s | FileCheck %s --check-prefixes=ALL,INSTCOMBINEGVN declare ptr @get_ptr.i8() declare ptr @get_ptr.i32() declare void @foo.i8(ptr) declare void @foo.i32(ptr) define i32 @test_gep_and_bitcast(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_and_bitcast( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_and_bitcast_arg(ptr %obj, i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_and_bitcast_arg( ; ALL-NEXT: entry: ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ:%.*]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_and_bitcast_phi(i1 %cond, i1 %cond2, i1 %cond3) { ; ALL-LABEL: @test_gep_and_bitcast_phi( ; ALL-NEXT: entry: ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: [[OBJ1:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br label [[MERGE:%.*]] ; ALL: bb2: ; ALL-NEXT: [[OBJ2_TYPED:%.*]] = call ptr @get_ptr.i32() ; ALL-NEXT: br label [[MERGE]] ; ALL: merge: ; ALL-NEXT: [[OBJ:%.*]] = phi ptr [ [[OBJ1]], [[BB1]] ], [ [[OBJ2_TYPED]], [[BB2]] ] ; ALL-NEXT: [[ANOTHER_PHI:%.*]] = phi ptr [ [[OBJ1]], [[BB1]] ], [ null, [[BB2]] ] ; ALL-NEXT: call void @foo.i8(ptr [[ANOTHER_PHI]]) ; ALL-NEXT: br i1 [[COND2:%.*]], label [[BB3:%.*]], label [[BB4:%.*]] ; ALL: bb3: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb4: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND3:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: br i1 %cond, label %bb1, label %bb2 bb1: %obj1 = call ptr @get_ptr.i8() br label %merge bb2: %obj2.typed = call ptr @get_ptr.i32() br label %merge merge: %obj = phi ptr [ %obj1, %bb1 ], [ %obj2.typed, %bb2 ] %another_phi = phi ptr [ %obj1, %bb1 ], [ null, %bb2 ] call void @foo.i8(ptr %another_phi) br i1 %cond2, label %bb3, label %bb4 bb3: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 br label %exit bb4: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb3 ], [ %ptr2, %bb4 ] %res.phi = phi i32 [ %res1, %bb3 ], [ %res2, %bb4 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond3, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_i32ptr(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_i32ptr( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i32() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i32, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i32() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1.typed = getelementptr inbounds i32, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1.typed br label %exit bb2: %ptr2.typed = getelementptr inbounds i32, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2.typed br label %exit exit: %ptr.typed = phi ptr [ %ptr1.typed, %bb1 ], [ %ptr2.typed, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_and_bitcast_gep_base_ptr(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_and_bitcast_gep_base_ptr( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ0:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ0]], i64 32 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj0 = call ptr @get_ptr.i8() %obj = getelementptr inbounds i8, ptr %obj0, i64 16 br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_and_bitcast_same_bb(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_and_bitcast_same_bb( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[EXIT:%.*]], label [[BB2:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 br i1 %cond, label %exit, label %bb2 bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %entry ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %entry ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_gep_and_bitcast_same_bb_and_extra_use(i1 %cond, i1 %cond2) { ; INSTCOMBINE-LABEL: @test_gep_and_bitcast_same_bb_and_extra_use( ; INSTCOMBINE-NEXT: entry: ; INSTCOMBINE-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; INSTCOMBINE-NEXT: [[PTR1:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; INSTCOMBINE-NEXT: call void @foo.i32(ptr nonnull [[PTR1]]) ; INSTCOMBINE-NEXT: br i1 [[COND:%.*]], label [[EXIT:%.*]], label [[BB2:%.*]] ; INSTCOMBINE: bb2: ; INSTCOMBINE-NEXT: [[PTR2:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; INSTCOMBINE-NEXT: br label [[EXIT]] ; INSTCOMBINE: exit: ; INSTCOMBINE-NEXT: [[PTR_TYPED:%.*]] = phi ptr [ [[PTR1]], [[ENTRY:%.*]] ], [ [[PTR2]], [[BB2]] ] ; INSTCOMBINE-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR_TYPED]], align 4 ; INSTCOMBINE-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; INSTCOMBINE-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; INSTCOMBINE-NEXT: ret i32 [[RES]] ; ; INSTCOMBINEGVN-LABEL: @test_gep_and_bitcast_same_bb_and_extra_use( ; INSTCOMBINEGVN-NEXT: entry: ; INSTCOMBINEGVN-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; INSTCOMBINEGVN-NEXT: [[PTR1:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; INSTCOMBINEGVN-NEXT: call void @foo.i32(ptr nonnull [[PTR1]]) ; INSTCOMBINEGVN-NEXT: br i1 [[COND:%.*]], label [[EXIT:%.*]], label [[BB2:%.*]] ; INSTCOMBINEGVN: bb2: ; INSTCOMBINEGVN-NEXT: br label [[EXIT]] ; INSTCOMBINEGVN: exit: ; INSTCOMBINEGVN-NEXT: [[RES_PHI:%.*]] = load i32, ptr [[PTR1]], align 4 ; INSTCOMBINEGVN-NEXT: store i32 1, ptr [[PTR1]], align 4 ; INSTCOMBINEGVN-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; INSTCOMBINEGVN-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 call void @foo.i32(ptr %ptr1) %res1 = load i32, ptr %ptr1 br i1 %cond, label %exit, label %bb2 bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %entry ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %entry ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i8 @test_gep(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES_PHI:%.*]] = load i8, ptr [[PTR_TYPED]], align 1 ; ALL-NEXT: store i8 1, ptr [[PTR_TYPED]], align 1 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i8 [[RES_PHI]], i8 1 ; ALL-NEXT: ret i8 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i8, ptr %ptr1 br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i8, ptr %ptr2 br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i8 [ %res1, %bb1 ], [ %res2, %bb2 ] store i8 1, ptr %ptr.typed %res.load = load i8, ptr %ptr.typed %res = select i1 %cond2, i8 %res.phi, i8 %res.load ret i8 %res } define i32 @test_extra_uses(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_extra_uses( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: [[PTR1:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES1:%.*]] = load i32, ptr [[PTR1]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR1]]) ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: [[PTR2:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES2:%.*]] = load i32, ptr [[PTR2]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR2]]) ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = phi ptr [ [[PTR1]], [[BB1]] ], [ [[PTR2]], [[BB2]] ] ; ALL-NEXT: [[RES_PHI:%.*]] = phi i32 [ [[RES1]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 call void @foo.i32(ptr %ptr1) br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 call void @foo.i32(ptr %ptr2) br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_extra_uses_non_inbounds(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_extra_uses_non_inbounds( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: [[PTR1:%.*]] = getelementptr i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES1:%.*]] = load i32, ptr [[PTR1]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR1]]) ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: [[PTR2:%.*]] = getelementptr i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES2:%.*]] = load i32, ptr [[PTR2]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR2]]) ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = phi ptr [ [[PTR1]], [[BB1]] ], [ [[PTR2]], [[BB2]] ] ; ALL-NEXT: [[RES_PHI:%.*]] = phi i32 [ [[RES1]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 call void @foo.i32(ptr %ptr1) br label %exit bb2: %ptr2 = getelementptr i8, ptr %obj, i64 16 %res2 = load i32, ptr %ptr2 call void @foo.i32(ptr %ptr2) br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i32 @test_extra_uses_multiple_geps(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_extra_uses_multiple_geps( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: [[PTR1:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES1:%.*]] = load i32, ptr [[PTR1]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR1]]) ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: [[PTR2_1:%.*]] = getelementptr i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES2:%.*]] = load i32, ptr [[PTR2_1]], align 4 ; ALL-NEXT: call void @foo.i32(ptr nonnull [[PTR2_1]]) ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = phi ptr [ [[PTR1]], [[BB1]] ], [ [[PTR2_1]], [[BB2]] ] ; ALL-NEXT: [[RES_PHI:%.*]] = phi i32 [ [[RES1]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; ALL-NEXT: store i32 1, ptr [[PTR_TYPED]], align 4 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i32 [[RES_PHI]], i32 1 ; ALL-NEXT: ret i32 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i32, ptr %ptr1 call void @foo.i32(ptr %ptr1) br label %exit bb2: %ptr2.0 = getelementptr i8, ptr %obj, i64 8 %ptr2.1 = getelementptr inbounds i8, ptr %ptr2.0, i64 8 %res2 = load i32, ptr %ptr2.1 call void @foo.i32(ptr %ptr2.1) br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2.1, %bb2 ] %res.phi = phi i32 [ %res1, %bb1 ], [ %res2, %bb2 ] store i32 1, ptr %ptr.typed %res.load = load i32, ptr %ptr.typed %res = select i1 %cond2, i32 %res.phi, i32 %res.load ret i32 %res } define i8 @test_gep_extra_uses(i1 %cond, i1 %cond2) { ; ALL-LABEL: @test_gep_extra_uses( ; ALL-NEXT: entry: ; ALL-NEXT: [[OBJ:%.*]] = call ptr @get_ptr.i8() ; ALL-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; ALL: bb1: ; ALL-NEXT: [[PTR1:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES1:%.*]] = load i8, ptr [[PTR1]], align 1 ; ALL-NEXT: call void @foo.i8(ptr nonnull [[PTR1]]) ; ALL-NEXT: br label [[EXIT:%.*]] ; ALL: bb2: ; ALL-NEXT: [[PTR2:%.*]] = getelementptr inbounds i8, ptr [[OBJ]], i64 16 ; ALL-NEXT: [[RES2:%.*]] = load i8, ptr [[PTR2]], align 1 ; ALL-NEXT: call void @foo.i8(ptr nonnull [[PTR2]]) ; ALL-NEXT: br label [[EXIT]] ; ALL: exit: ; ALL-NEXT: [[PTR_TYPED:%.*]] = phi ptr [ [[PTR1]], [[BB1]] ], [ [[PTR2]], [[BB2]] ] ; ALL-NEXT: [[RES_PHI:%.*]] = phi i8 [ [[RES1]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; ALL-NEXT: store i8 1, ptr [[PTR_TYPED]], align 1 ; ALL-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], i8 [[RES_PHI]], i8 1 ; ALL-NEXT: ret i8 [[RES]] ; entry: %obj = call ptr @get_ptr.i8() br i1 %cond, label %bb1, label %bb2 bb1: %ptr1 = getelementptr inbounds i8, ptr %obj, i64 16 %res1 = load i8, ptr %ptr1 call void @foo.i8(ptr %ptr1) br label %exit bb2: %ptr2 = getelementptr inbounds i8, ptr %obj, i64 16 %res2 = load i8, ptr %ptr2 call void @foo.i8(ptr %ptr2) br label %exit exit: %ptr.typed = phi ptr [ %ptr1, %bb1 ], [ %ptr2, %bb2 ] %res.phi = phi i8 [ %res1, %bb1 ], [ %res2, %bb2 ] store i8 1, ptr %ptr.typed %res.load = load i8, ptr %ptr.typed %res = select i1 %cond2, i8 %res.phi, i8 %res.load ret i8 %res } ; `swifterror` addresses are restricted to load and stores and call arguments. declare void @takeAddress(ptr swifterror) define ptr @test_dont_optimize_swifterror(i1 %cond, i1 %cond2, ptr %ptr) { ; INSTCOMBINE-LABEL: @test_dont_optimize_swifterror( ; INSTCOMBINE-NEXT: entry: ; INSTCOMBINE-NEXT: [[OBJ:%.*]] = alloca swifterror ptr, align 8 ; INSTCOMBINE-NEXT: [[OBJ2:%.*]] = alloca swifterror ptr, align 8 ; INSTCOMBINE-NEXT: call void @takeAddress(ptr nonnull swifterror [[OBJ]]) ; INSTCOMBINE-NEXT: call void @takeAddress(ptr nonnull swifterror [[OBJ2]]) ; INSTCOMBINE-NEXT: store ptr [[PTR:%.*]], ptr [[OBJ]], align 8 ; INSTCOMBINE-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; INSTCOMBINE: bb1: ; INSTCOMBINE-NEXT: [[RES1:%.*]] = load ptr, ptr [[OBJ]], align 8 ; INSTCOMBINE-NEXT: br label [[EXIT:%.*]] ; INSTCOMBINE: bb2: ; INSTCOMBINE-NEXT: [[RES2:%.*]] = load ptr, ptr [[OBJ2]], align 8 ; INSTCOMBINE-NEXT: br label [[EXIT]] ; INSTCOMBINE: exit: ; INSTCOMBINE-NEXT: [[RES_PHI:%.*]] = phi ptr [ [[RES1]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; INSTCOMBINE-NEXT: store ptr null, ptr [[OBJ]], align 8 ; INSTCOMBINE-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], ptr [[RES_PHI]], ptr null ; INSTCOMBINE-NEXT: ret ptr [[RES]] ; ; INSTCOMBINEGVN-LABEL: @test_dont_optimize_swifterror( ; INSTCOMBINEGVN-NEXT: entry: ; INSTCOMBINEGVN-NEXT: [[OBJ:%.*]] = alloca swifterror ptr, align 8 ; INSTCOMBINEGVN-NEXT: [[OBJ2:%.*]] = alloca swifterror ptr, align 8 ; INSTCOMBINEGVN-NEXT: call void @takeAddress(ptr nonnull swifterror [[OBJ]]) ; INSTCOMBINEGVN-NEXT: call void @takeAddress(ptr nonnull swifterror [[OBJ2]]) ; INSTCOMBINEGVN-NEXT: store ptr [[PTR:%.*]], ptr [[OBJ]], align 8 ; INSTCOMBINEGVN-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]] ; INSTCOMBINEGVN: bb1: ; INSTCOMBINEGVN-NEXT: br label [[EXIT:%.*]] ; INSTCOMBINEGVN: bb2: ; INSTCOMBINEGVN-NEXT: [[RES2:%.*]] = load ptr, ptr [[OBJ2]], align 8 ; INSTCOMBINEGVN-NEXT: br label [[EXIT]] ; INSTCOMBINEGVN: exit: ; INSTCOMBINEGVN-NEXT: [[RES_PHI:%.*]] = phi ptr [ [[PTR]], [[BB1]] ], [ [[RES2]], [[BB2]] ] ; INSTCOMBINEGVN-NEXT: store ptr null, ptr [[OBJ]], align 8 ; INSTCOMBINEGVN-NEXT: [[RES:%.*]] = select i1 [[COND2:%.*]], ptr [[RES_PHI]], ptr null ; INSTCOMBINEGVN-NEXT: ret ptr [[RES]] ; entry: %obj = alloca swifterror ptr, align 8 %obj2 = alloca swifterror ptr, align 8 call void @takeAddress(ptr swifterror %obj) call void @takeAddress(ptr swifterror %obj2) store ptr %ptr, ptr %obj, align 8 br i1 %cond, label %bb1, label %bb2 bb1: ; preds = %entry %res1 = load ptr, ptr %obj, align 8 br label %exit bb2: ; preds = %entry %res2 = load ptr, ptr %obj2, align 8 br label %exit exit: ; preds = %bb2, %bb1 %res.phi = phi ptr [ %res1, %bb1 ], [ %res2, %bb2 ] store ptr null, ptr %obj, align 8 %res = select i1 %cond2, ptr %res.phi, ptr null ret ptr %res }