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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=loop-reduce,loop-term-fold -S | FileCheck %s3 4target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"5target triple = "riscv64"6 7; a[] = 1.08define void @test1(ptr %a) {9; CHECK-LABEL: @test1(10; CHECK-NEXT: entry:11; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 12800012; CHECK-NEXT: br label [[LOOP:%.*]]13; CHECK: loop:14; CHECK-NEXT: [[LSR_IV1:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[LOOP]] ], [ [[A]], [[ENTRY:%.*]] ]15; CHECK-NEXT: store float 1.000000e+00, ptr [[LSR_IV1]], align 416; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, ptr [[LSR_IV1]], i64 417; CHECK-NEXT: [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND:%.*]] = icmp eq ptr [[SCEVGEP]], [[SCEVGEP2]]18; CHECK-NEXT: br i1 [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND]], label [[EXIT:%.*]], label [[LOOP]]19; CHECK: exit:20; CHECK-NEXT: ret void21;22entry:23 br label %loop24 25loop: ; preds = %loop, %entry26 %t15 = phi i64 [ 0, %entry ], [ %t20, %loop ]27 %t19 = getelementptr inbounds [32000 x float], ptr %a, i64 0, i64 %t1528 store float 1.0, ptr %t19, align 429 %t20 = add nuw nsw i64 %t15, 130 %t21 = icmp eq i64 %t20, 3200031 br i1 %t21, label %exit, label %loop32 33exit: ; preds = %loop34 ret void35}36 37; Same as test1, but with a use of a added outside the loop38define void @test2(ptr %a) {39; CHECK-LABEL: @test2(40; CHECK-NEXT: entry:41; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 12800042; CHECK-NEXT: br label [[LOOP:%.*]]43; CHECK: loop:44; CHECK-NEXT: [[LSR_IV1:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[LOOP]] ], [ [[A]], [[ENTRY:%.*]] ]45; CHECK-NEXT: store float 1.000000e+00, ptr [[LSR_IV1]], align 446; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, ptr [[LSR_IV1]], i64 447; CHECK-NEXT: [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND:%.*]] = icmp eq ptr [[SCEVGEP]], [[SCEVGEP2]]48; CHECK-NEXT: br i1 [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND]], label [[EXIT:%.*]], label [[LOOP]]49; CHECK: exit:50; CHECK-NEXT: call void @use(ptr [[A]])51; CHECK-NEXT: ret void52;53entry:54 br label %loop55 56loop: ; preds = %loop, %entry57 %t15 = phi i64 [ 0, %entry ], [ %t20, %loop ]58 %t19 = getelementptr inbounds [32000 x float], ptr %a, i64 0, i64 %t1559 store float 1.0, ptr %t19, align 460 %t20 = add nuw nsw i64 %t15, 161 %t21 = icmp eq i64 %t20, 3200062 br i1 %t21, label %exit, label %loop63 64exit: ; preds = %loop65 call void @use(ptr %a)66 ret void67}68 69; b[] = a[] + 1.070define void @test3(ptr %a, ptr %b) {71; CHECK-LABEL: @test3(72; CHECK-NEXT: entry:73; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 12800074; CHECK-NEXT: br label [[LOOP:%.*]]75; CHECK: loop:76; CHECK-NEXT: [[LSR_IV2:%.*]] = phi ptr [ [[SCEVGEP3:%.*]], [[LOOP]] ], [ [[A:%.*]], [[ENTRY:%.*]] ]77; CHECK-NEXT: [[LSR_IV1:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[LOOP]] ], [ [[B]], [[ENTRY]] ]78; CHECK-NEXT: [[T17:%.*]] = load float, ptr [[LSR_IV2]], align 479; CHECK-NEXT: [[T18:%.*]] = fadd float [[T17]], 1.000000e+0080; CHECK-NEXT: store float [[T18]], ptr [[LSR_IV1]], align 481; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, ptr [[LSR_IV1]], i64 482; CHECK-NEXT: [[SCEVGEP3]] = getelementptr i8, ptr [[LSR_IV2]], i64 483; CHECK-NEXT: [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND:%.*]] = icmp eq ptr [[SCEVGEP]], [[SCEVGEP4]]84; CHECK-NEXT: br i1 [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND]], label [[EXIT:%.*]], label [[LOOP]]85; CHECK: exit:86; CHECK-NEXT: ret void87;88entry:89 br label %loop90 91loop: ; preds = %loop, %entry92 %t15 = phi i64 [ 0, %entry ], [ %t20, %loop ]93 %t16 = getelementptr inbounds [32000 x float], ptr %a, i64 0, i64 %t1594 %t17 = load float, ptr %t16, align 495 %t18 = fadd float %t17, 1.000000e+0096 %t19 = getelementptr inbounds [32000 x float], ptr %b, i64 0, i64 %t1597 store float %t18, ptr %t19, align 498 %t20 = add nuw nsw i64 %t15, 199 %t21 = icmp eq i64 %t20, 32000100 br i1 %t21, label %exit, label %loop101 102exit: ; preds = %loop103 ret void104}105 106; Same as test3, but with a use of both a and b outside the loop107define void @test4(ptr %a, ptr %b) {108; CHECK-LABEL: @test4(109; CHECK-NEXT: entry:110; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 128000111; CHECK-NEXT: br label [[LOOP:%.*]]112; CHECK: loop:113; CHECK-NEXT: [[LSR_IV2:%.*]] = phi ptr [ [[SCEVGEP3:%.*]], [[LOOP]] ], [ [[A:%.*]], [[ENTRY:%.*]] ]114; CHECK-NEXT: [[LSR_IV1:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[LOOP]] ], [ [[B]], [[ENTRY]] ]115; CHECK-NEXT: [[T17:%.*]] = load float, ptr [[LSR_IV2]], align 4116; CHECK-NEXT: [[T18:%.*]] = fadd float [[T17]], 1.000000e+00117; CHECK-NEXT: store float [[T18]], ptr [[LSR_IV1]], align 4118; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, ptr [[LSR_IV1]], i64 4119; CHECK-NEXT: [[SCEVGEP3]] = getelementptr i8, ptr [[LSR_IV2]], i64 4120; CHECK-NEXT: [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND:%.*]] = icmp eq ptr [[SCEVGEP]], [[SCEVGEP4]]121; CHECK-NEXT: br i1 [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND]], label [[EXIT:%.*]], label [[LOOP]]122; CHECK: exit:123; CHECK-NEXT: call void @use(ptr [[A]])124; CHECK-NEXT: call void @use(ptr [[B]])125; CHECK-NEXT: ret void126;127entry:128 br label %loop129 130loop: ; preds = %loop, %entry131 %t15 = phi i64 [ 0, %entry ], [ %t20, %loop ]132 %t16 = getelementptr inbounds [32000 x float], ptr %a, i64 0, i64 %t15133 %t17 = load float, ptr %t16, align 4134 %t18 = fadd float %t17, 1.000000e+00135 %t19 = getelementptr inbounds [32000 x float], ptr %b, i64 0, i64 %t15136 store float %t18, ptr %t19, align 4137 %t20 = add nuw nsw i64 %t15, 1138 %t21 = icmp eq i64 %t20, 32000139 br i1 %t21, label %exit, label %loop140 141exit: ; preds = %loop142 call void @use(ptr %a)143 call void @use(ptr %b)144 ret void145}146 147declare void @use(ptr)148 149