; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -passes=instcombine -S | FileCheck %s define void @matching_phi(i64 %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @matching_phi( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB2:%.*]], label [[BB1:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, ptr [[B:%.*]], i64 2 ; CHECK-NEXT: br label [[BB3:%.*]] ; CHECK: bb2: ; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1 ; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to ptr ; CHECK-NEXT: store float 1.000000e+01, ptr [[ADD]], align 4 ; CHECK-NEXT: br label [[BB3]] ; CHECK: bb3: ; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi ptr [ [[ADDB]], [[BB1]] ], [ [[ADD]], [[BB2]] ] ; CHECK-NEXT: [[I1:%.*]] = load float, ptr [[A_ADDR_03]], align 4 ; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01 ; CHECK-NEXT: store float [[MUL_I]], ptr [[A_ADDR_03]], align 4 ; CHECK-NEXT: ret void ; entry: %cmp1 = icmp eq i1 %cond, 0 %add.int = add i64 %a, 1 %add = inttoptr i64 %add.int to ptr %addb = getelementptr inbounds float, ptr %b, i64 2 %addb.int = ptrtoint ptr %addb to i64 br i1 %cmp1, label %bb1, label %bb2 bb1: br label %bb3 bb2: store float 1.0e+01, ptr %add, align 4 br label %bb3 bb3: %a.addr.03 = phi ptr [ %addb, %bb1 ], [ %add, %bb2 ] %b.addr.02 = phi i64 [ %addb.int, %bb1 ], [ %add.int, %bb2 ] %i0 = inttoptr i64 %b.addr.02 to ptr %i1 = load float, ptr %i0, align 4 %mul.i = fmul float %i1, 4.200000e+01 store float %mul.i, ptr %a.addr.03, align 4 ret void } define void @no_matching_phi(i64 %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @no_matching_phi( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[ADD_INT:%.*]] = add i64 [[A:%.*]], 1 ; CHECK-NEXT: [[ADDB:%.*]] = getelementptr inbounds float, ptr [[B:%.*]], i64 2 ; CHECK-NEXT: br i1 [[COND:%.*]], label [[B:%.*]], label [[A:%.*]] ; CHECK: A: ; CHECK-NEXT: [[TMP0:%.*]] = inttoptr i64 [[ADD_INT]] to ptr ; CHECK-NEXT: br label [[C:%.*]] ; CHECK: B: ; CHECK-NEXT: [[ADD:%.*]] = inttoptr i64 [[ADD_INT]] to ptr ; CHECK-NEXT: store float 1.000000e+01, ptr [[ADD]], align 4 ; CHECK-NEXT: br label [[C]] ; CHECK: C: ; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi ptr [ [[ADDB]], [[A]] ], [ [[ADD]], [[B]] ] ; CHECK-NEXT: [[B_ADDR_02:%.*]] = phi ptr [ [[TMP0]], [[A]] ], [ [[ADDB]], [[B]] ] ; CHECK-NEXT: [[I1:%.*]] = load float, ptr [[B_ADDR_02]], align 4 ; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[I1]], 4.200000e+01 ; CHECK-NEXT: store float [[MUL_I]], ptr [[A_ADDR_03]], align 4 ; CHECK-NEXT: ret void ; entry: %cmp1 = icmp eq i1 %cond, 0 %add.int = add i64 %a, 1 %add = inttoptr i64 %add.int to ptr %addb = getelementptr inbounds float, ptr %b, i64 2 %addb.int = ptrtoint ptr %addb to i64 br i1 %cmp1, label %A, label %B A: br label %C B: store float 1.0e+01, ptr %add, align 4 br label %C C: %a.addr.03 = phi ptr [ %addb, %A ], [ %add, %B ] %b.addr.02 = phi i64 [ %addb.int, %B ], [ %add.int, %A ] %i0 = inttoptr i64 %b.addr.02 to ptr %i1 = load float, ptr %i0, align 4 %mul.i = fmul float %i1, 4.200000e+01 store float %mul.i, ptr %a.addr.03, align 4 ret void }