; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -verify-loop-info -irce -S < %s | FileCheck %s ; RUN: opt -verify-loop-info -passes='require<branch-prob>,irce' -S < %s | FileCheck %s define void @multiple_access_no_preloop( ; CHECK-LABEL: @multiple_access_no_preloop( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN_A:%.*]] = load i32, i32* [[A_LEN_PTR:%.*]], align 4, !range [[RNG0:![0-9]+]] ; CHECK-NEXT: [[LEN_B:%.*]] = load i32, i32* [[B_LEN_PTR:%.*]], align 4, !range [[RNG0]] ; CHECK-NEXT: [[FIRST_ITR_CHECK:%.*]] = icmp sgt i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[FIRST_ITR_CHECK]], label [[LOOP_PREHEADER:%.*]], label [[EXIT:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[SMIN:%.*]] = call i32 @llvm.smin.i32(i32 [[LEN_B]], i32 [[LEN_A]]) ; CHECK-NEXT: [[SMIN1:%.*]] = call i32 @llvm.smin.i32(i32 [[SMIN]], i32 [[N]]) ; CHECK-NEXT: [[EXIT_MAINLOOP_AT:%.*]] = call i32 @llvm.smax.i32(i32 [[SMIN1]], i32 0) ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 0, [[EXIT_MAINLOOP_AT]] ; CHECK-NEXT: br i1 [[TMP0]], label [[LOOP_PREHEADER2:%.*]], label [[MAIN_PSEUDO_EXIT:%.*]] ; CHECK: loop.preheader2: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IDX:%.*]] = phi i32 [ [[IDX_NEXT:%.*]], [[IN_BOUNDS_B:%.*]] ], [ 0, [[LOOP_PREHEADER2]] ] ; CHECK-NEXT: [[IDX_NEXT]] = add i32 [[IDX]], 1 ; CHECK-NEXT: [[ABC_A:%.*]] = icmp slt i32 [[IDX]], [[LEN_A]] ; CHECK-NEXT: br i1 true, label [[IN_BOUNDS_A:%.*]], label [[OUT_OF_BOUNDS_LOOPEXIT3:%.*]], !prof [[PROF1:![0-9]+]] ; CHECK: in.bounds.a: ; CHECK-NEXT: [[ADDR_A:%.*]] = getelementptr i32, i32* [[ARR_A:%.*]], i32 [[IDX]] ; CHECK-NEXT: store i32 0, i32* [[ADDR_A]], align 4 ; CHECK-NEXT: [[ABC_B:%.*]] = icmp slt i32 [[IDX]], [[LEN_B]] ; CHECK-NEXT: br i1 true, label [[IN_BOUNDS_B]], label [[OUT_OF_BOUNDS_LOOPEXIT3]], !prof [[PROF1]] ; CHECK: in.bounds.b: ; CHECK-NEXT: [[ADDR_B:%.*]] = getelementptr i32, i32* [[ARR_B:%.*]], i32 [[IDX]] ; CHECK-NEXT: store i32 -1, i32* [[ADDR_B]], align 4 ; CHECK-NEXT: [[NEXT:%.*]] = icmp slt i32 [[IDX_NEXT]], [[N]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[IDX_NEXT]], [[EXIT_MAINLOOP_AT]] ; CHECK-NEXT: br i1 [[TMP1]], label [[LOOP]], label [[MAIN_EXIT_SELECTOR:%.*]] ; CHECK: main.exit.selector: ; CHECK-NEXT: [[IDX_NEXT_LCSSA:%.*]] = phi i32 [ [[IDX_NEXT]], [[IN_BOUNDS_B]] ] ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i32 [[IDX_NEXT_LCSSA]], [[N]] ; CHECK-NEXT: br i1 [[TMP2]], label [[MAIN_PSEUDO_EXIT]], label [[EXIT_LOOPEXIT:%.*]] ; CHECK: main.pseudo.exit: ; CHECK-NEXT: [[IDX_COPY:%.*]] = phi i32 [ 0, [[LOOP_PREHEADER]] ], [ [[IDX_NEXT_LCSSA]], [[MAIN_EXIT_SELECTOR]] ] ; CHECK-NEXT: [[INDVAR_END:%.*]] = phi i32 [ 0, [[LOOP_PREHEADER]] ], [ [[IDX_NEXT_LCSSA]], [[MAIN_EXIT_SELECTOR]] ] ; CHECK-NEXT: br label [[POSTLOOP:%.*]] ; CHECK: out.of.bounds.loopexit: ; CHECK-NEXT: br label [[OUT_OF_BOUNDS:%.*]] ; CHECK: out.of.bounds.loopexit3: ; CHECK-NEXT: br label [[OUT_OF_BOUNDS]] ; CHECK: out.of.bounds: ; CHECK-NEXT: ret void ; CHECK: exit.loopexit.loopexit: ; CHECK-NEXT: br label [[EXIT_LOOPEXIT]] ; CHECK: exit.loopexit: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret void ; CHECK: postloop: ; CHECK-NEXT: br label [[LOOP_POSTLOOP:%.*]] ; CHECK: loop.postloop: ; CHECK-NEXT: [[IDX_POSTLOOP:%.*]] = phi i32 [ [[IDX_NEXT_POSTLOOP:%.*]], [[IN_BOUNDS_B_POSTLOOP:%.*]] ], [ [[IDX_COPY]], [[POSTLOOP]] ] ; CHECK-NEXT: [[IDX_NEXT_POSTLOOP]] = add i32 [[IDX_POSTLOOP]], 1 ; CHECK-NEXT: [[ABC_A_POSTLOOP:%.*]] = icmp slt i32 [[IDX_POSTLOOP]], [[LEN_A]] ; CHECK-NEXT: br i1 [[ABC_A_POSTLOOP]], label [[IN_BOUNDS_A_POSTLOOP:%.*]], label [[OUT_OF_BOUNDS_LOOPEXIT:%.*]], !prof [[PROF1]] ; CHECK: in.bounds.a.postloop: ; CHECK-NEXT: [[ADDR_A_POSTLOOP:%.*]] = getelementptr i32, i32* [[ARR_A]], i32 [[IDX_POSTLOOP]] ; CHECK-NEXT: store i32 0, i32* [[ADDR_A_POSTLOOP]], align 4 ; CHECK-NEXT: [[ABC_B_POSTLOOP:%.*]] = icmp slt i32 [[IDX_POSTLOOP]], [[LEN_B]] ; CHECK-NEXT: br i1 [[ABC_B_POSTLOOP]], label [[IN_BOUNDS_B_POSTLOOP]], label [[OUT_OF_BOUNDS_LOOPEXIT]], !prof [[PROF1]] ; CHECK: in.bounds.b.postloop: ; CHECK-NEXT: [[ADDR_B_POSTLOOP:%.*]] = getelementptr i32, i32* [[ARR_B]], i32 [[IDX_POSTLOOP]] ; CHECK-NEXT: store i32 -1, i32* [[ADDR_B_POSTLOOP]], align 4 ; CHECK-NEXT: [[NEXT_POSTLOOP:%.*]] = icmp slt i32 [[IDX_NEXT_POSTLOOP]], [[N]] ; CHECK-NEXT: br i1 [[NEXT_POSTLOOP]], label [[LOOP_POSTLOOP]], label [[EXIT_LOOPEXIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP2:![0-9]+]], !irce.loop.clone !7 ; i32* %arr_a, i32* %a_len_ptr, i32* %arr_b, i32* %b_len_ptr, i32 %n) { entry: %len.a = load i32, i32* %a_len_ptr, !range !0 %len.b = load i32, i32* %b_len_ptr, !range !0 %first.itr.check = icmp sgt i32 %n, 0 br i1 %first.itr.check, label %loop, label %exit loop: %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds.b ] %idx.next = add i32 %idx, 1 %abc.a = icmp slt i32 %idx, %len.a br i1 %abc.a, label %in.bounds.a, label %out.of.bounds, !prof !1 in.bounds.a: %addr.a = getelementptr i32, i32* %arr_a, i32 %idx store i32 0, i32* %addr.a %abc.b = icmp slt i32 %idx, %len.b br i1 %abc.b, label %in.bounds.b, label %out.of.bounds, !prof !1 in.bounds.b: %addr.b = getelementptr i32, i32* %arr_b, i32 %idx store i32 -1, i32* %addr.b %next = icmp slt i32 %idx.next, %n br i1 %next, label %loop, label %exit out.of.bounds: ret void exit: ret void } !0 = !{i32 0, i32 2147483647} !1 = !{!"branch_weights", i32 128, i32 4}