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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -verify-loop-info -passes=irce -S < %s | FileCheck %s3; RUN: opt -verify-loop-info -passes='require<branch-prob>,irce' -S < %s | FileCheck %s4 5define void @multiple_access_no_preloop(6; CHECK-LABEL: @multiple_access_no_preloop(7; CHECK-NEXT: entry:8; CHECK-NEXT: [[LEN_A:%.*]] = load i32, ptr [[A_LEN_PTR:%.*]], align 4, !range [[RNG0:![0-9]+]]9; CHECK-NEXT: [[LEN_B:%.*]] = load i32, ptr [[B_LEN_PTR:%.*]], align 4, !range [[RNG0]]10; CHECK-NEXT: [[FIRST_ITR_CHECK:%.*]] = icmp sgt i32 [[N:%.*]], 011; CHECK-NEXT: br i1 [[FIRST_ITR_CHECK]], label [[LOOP_PREHEADER:%.*]], label [[EXIT:%.*]]12; CHECK: loop.preheader:13; CHECK-NEXT: [[SMIN:%.*]] = call i32 @llvm.smin.i32(i32 [[LEN_B]], i32 [[LEN_A]])14; CHECK-NEXT: [[SMIN1:%.*]] = call i32 @llvm.smin.i32(i32 [[SMIN]], i32 [[N]])15; CHECK-NEXT: [[EXIT_MAINLOOP_AT:%.*]] = call i32 @llvm.smax.i32(i32 [[SMIN1]], i32 0)16; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 0, [[EXIT_MAINLOOP_AT]]17; CHECK-NEXT: br i1 [[TMP0]], label [[LOOP_PREHEADER2:%.*]], label [[MAIN_PSEUDO_EXIT:%.*]]18; CHECK: loop.preheader2:19; CHECK-NEXT: br label [[LOOP:%.*]]20; CHECK: loop:21; CHECK-NEXT: [[IDX:%.*]] = phi i32 [ [[IDX_NEXT:%.*]], [[IN_BOUNDS_B:%.*]] ], [ 0, [[LOOP_PREHEADER2]] ]22; CHECK-NEXT: [[IDX_NEXT]] = add nsw i32 [[IDX]], 123; CHECK-NEXT: [[ABC_A:%.*]] = icmp slt i32 [[IDX]], [[LEN_A]]24; CHECK-NEXT: br i1 true, label [[IN_BOUNDS_A:%.*]], label [[OUT_OF_BOUNDS_LOOPEXIT3:%.*]], !prof [[PROF1:![0-9]+]]25; CHECK: in.bounds.a:26; CHECK-NEXT: [[ADDR_A:%.*]] = getelementptr i32, ptr [[ARR_A:%.*]], i32 [[IDX]]27; CHECK-NEXT: store i32 0, ptr [[ADDR_A]], align 428; CHECK-NEXT: [[ABC_B:%.*]] = icmp slt i32 [[IDX]], [[LEN_B]]29; CHECK-NEXT: br i1 true, label [[IN_BOUNDS_B]], label [[OUT_OF_BOUNDS_LOOPEXIT3]], !prof [[PROF1]]30; CHECK: in.bounds.b:31; CHECK-NEXT: [[ADDR_B:%.*]] = getelementptr i32, ptr [[ARR_B:%.*]], i32 [[IDX]]32; CHECK-NEXT: store i32 -1, ptr [[ADDR_B]], align 433; CHECK-NEXT: [[NEXT:%.*]] = icmp slt i32 [[IDX_NEXT]], [[N]]34; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[IDX_NEXT]], [[EXIT_MAINLOOP_AT]]35; CHECK-NEXT: br i1 [[TMP1]], label [[LOOP]], label [[MAIN_EXIT_SELECTOR:%.*]]36; CHECK: main.exit.selector:37; CHECK-NEXT: [[IDX_NEXT_LCSSA:%.*]] = phi i32 [ [[IDX_NEXT]], [[IN_BOUNDS_B]] ]38; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i32 [[IDX_NEXT_LCSSA]], [[N]]39; CHECK-NEXT: br i1 [[TMP2]], label [[MAIN_PSEUDO_EXIT]], label [[EXIT_LOOPEXIT:%.*]]40; CHECK: main.pseudo.exit:41; CHECK-NEXT: [[IDX_COPY:%.*]] = phi i32 [ 0, [[LOOP_PREHEADER]] ], [ [[IDX_NEXT_LCSSA]], [[MAIN_EXIT_SELECTOR]] ]42; CHECK-NEXT: [[INDVAR_END:%.*]] = phi i32 [ 0, [[LOOP_PREHEADER]] ], [ [[IDX_NEXT_LCSSA]], [[MAIN_EXIT_SELECTOR]] ]43; CHECK-NEXT: br label [[POSTLOOP:%.*]]44; CHECK: out.of.bounds.loopexit:45; CHECK-NEXT: br label [[OUT_OF_BOUNDS:%.*]]46; CHECK: out.of.bounds.loopexit3:47; CHECK-NEXT: br label [[OUT_OF_BOUNDS]]48; CHECK: out.of.bounds:49; CHECK-NEXT: ret void50; CHECK: exit.loopexit.loopexit:51; CHECK-NEXT: br label [[EXIT_LOOPEXIT]]52; CHECK: exit.loopexit:53; CHECK-NEXT: br label [[EXIT]]54; CHECK: exit:55; CHECK-NEXT: ret void56; CHECK: postloop:57; CHECK-NEXT: br label [[LOOP_POSTLOOP:%.*]]58; CHECK: loop.postloop:59; CHECK-NEXT: [[IDX_POSTLOOP:%.*]] = phi i32 [ [[IDX_NEXT_POSTLOOP:%.*]], [[IN_BOUNDS_B_POSTLOOP:%.*]] ], [ [[IDX_COPY]], [[POSTLOOP]] ]60; CHECK-NEXT: [[IDX_NEXT_POSTLOOP]] = add i32 [[IDX_POSTLOOP]], 161; CHECK-NEXT: [[ABC_A_POSTLOOP:%.*]] = icmp slt i32 [[IDX_POSTLOOP]], [[LEN_A]]62; CHECK-NEXT: br i1 [[ABC_A_POSTLOOP]], label [[IN_BOUNDS_A_POSTLOOP:%.*]], label [[OUT_OF_BOUNDS_LOOPEXIT:%.*]], !prof [[PROF1]]63; CHECK: in.bounds.a.postloop:64; CHECK-NEXT: [[ADDR_A_POSTLOOP:%.*]] = getelementptr i32, ptr [[ARR_A]], i32 [[IDX_POSTLOOP]]65; CHECK-NEXT: store i32 0, ptr [[ADDR_A_POSTLOOP]], align 466; CHECK-NEXT: [[ABC_B_POSTLOOP:%.*]] = icmp slt i32 [[IDX_POSTLOOP]], [[LEN_B]]67; CHECK-NEXT: br i1 [[ABC_B_POSTLOOP]], label [[IN_BOUNDS_B_POSTLOOP]], label [[OUT_OF_BOUNDS_LOOPEXIT]], !prof [[PROF1]]68; CHECK: in.bounds.b.postloop:69; CHECK-NEXT: [[ADDR_B_POSTLOOP:%.*]] = getelementptr i32, ptr [[ARR_B]], i32 [[IDX_POSTLOOP]]70; CHECK-NEXT: store i32 -1, ptr [[ADDR_B_POSTLOOP]], align 471; CHECK-NEXT: [[NEXT_POSTLOOP:%.*]] = icmp slt i32 [[IDX_NEXT_POSTLOOP]], [[N]]72; CHECK-NEXT: br i1 [[NEXT_POSTLOOP]], label [[LOOP_POSTLOOP]], label [[EXIT_LOOPEXIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP2:![0-9]+]], !loop_constrainer.loop.clone [[META7:![0-9]+]]73;74 ptr %arr_a, ptr %a_len_ptr, ptr %arr_b, ptr %b_len_ptr, i32 %n) {75 76 entry:77 %len.a = load i32, ptr %a_len_ptr, !range !078 %len.b = load i32, ptr %b_len_ptr, !range !079 %first.itr.check = icmp sgt i32 %n, 080 br i1 %first.itr.check, label %loop, label %exit81 82 loop:83 %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds.b ]84 %idx.next = add i32 %idx, 185 %abc.a = icmp slt i32 %idx, %len.a86 br i1 %abc.a, label %in.bounds.a, label %out.of.bounds, !prof !187 88 in.bounds.a:89 %addr.a = getelementptr i32, ptr %arr_a, i32 %idx90 store i32 0, ptr %addr.a91 %abc.b = icmp slt i32 %idx, %len.b92 br i1 %abc.b, label %in.bounds.b, label %out.of.bounds, !prof !193 94 in.bounds.b:95 %addr.b = getelementptr i32, ptr %arr_b, i32 %idx96 store i32 -1, ptr %addr.b97 %next = icmp slt i32 %idx.next, %n98 br i1 %next, label %loop, label %exit99 100 out.of.bounds:101 ret void102 103 exit:104 ret void105}106 107!0 = !{i32 0, i32 2147483647}108!1 = !{!"branch_weights", i32 128, i32 4}109