172 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s3 4target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"5 6; we need to generate post index load for this case7define i32 @test(i32 %c, ptr %a, ptr %b) {8; CHECK-LABEL: test:9; CHECK: // %bb.0: // %entry10; CHECK-NEXT: cmp w0, #111; CHECK-NEXT: b.lt .LBB0_412; CHECK-NEXT: // %bb.1: // %for.body.preheader13; CHECK-NEXT: mov w8, w014; CHECK-NEXT: .LBB0_2: // %for.body15; CHECK-NEXT: // =>This Inner Loop Header: Depth=116; CHECK-NEXT: ldr w9, [x1], #417; CHECK-NEXT: cbnz w9, .LBB0_518; CHECK-NEXT: // %bb.3: // %for.cond19; CHECK-NEXT: // in Loop: Header=BB0_2 Depth=120; CHECK-NEXT: subs x8, x8, #121; CHECK-NEXT: b.ne .LBB0_222; CHECK-NEXT: .LBB0_4:23; CHECK-NEXT: mov w0, wzr24; CHECK-NEXT: ret25; CHECK-NEXT: .LBB0_5:26; CHECK-NEXT: mov w0, #1 // =0x127; CHECK-NEXT: ret28entry:29 %cmp13 = icmp sgt i32 %c, 030 br i1 %cmp13, label %for.body.preheader, label %return31 32for.body.preheader: ; preds = %entry33 %wide.trip.count = zext i32 %c to i6434 br label %for.body35 36for.cond: ; preds = %for.body37 %iv.next = add nuw nsw i64 %iv, 138 %exitcond.not = icmp eq i64 %iv.next, %wide.trip.count39 br i1 %exitcond.not, label %return, label %for.body40 41for.body: ; preds = %for.body.preheader, %for.cond42 %iv = phi i64 [ 0, %for.body.preheader ], [ %iv.next, %for.cond ]43 %arrayidx = getelementptr inbounds i32, ptr %a, i64 %iv44 %val = load i32, ptr %arrayidx, align 445 %tobool3.not = icmp eq i32 %val, 046 br i1 %tobool3.not, label %for.cond, label %return47 48return: ; preds = %for.cond, %for.body, %entry49 %retval.1 = phi i32 [ 0, %entry ], [ 0, %for.cond ], [ 1, %for.body ]50 ret i32 %retval.151}52 53; negative case: %arrayidx.b is not in header54 55define i64 @IVIncHoist_not_all_user_in_header(i32 %c, ptr %a, ptr %b) {56; CHECK-LABEL: IVIncHoist_not_all_user_in_header:57; CHECK: // %bb.0: // %entry58; CHECK-NEXT: cmp w0, #159; CHECK-NEXT: b.lt .LBB1_560; CHECK-NEXT: // %bb.1: // %for.body.preheader61; CHECK-NEXT: mov x8, xzr62; CHECK-NEXT: mov w9, w063; CHECK-NEXT: add x10, x1, #464; CHECK-NEXT: add x11, x2, #865; CHECK-NEXT: mov w0, #1 // =0x166; CHECK-NEXT: .LBB1_2: // %for.body67; CHECK-NEXT: // =>This Inner Loop Header: Depth=168; CHECK-NEXT: ldr w12, [x10, x8, lsl #2]69; CHECK-NEXT: cbnz w12, .LBB1_770; CHECK-NEXT: // %bb.3: // %if.then71; CHECK-NEXT: // in Loop: Header=BB1_2 Depth=172; CHECK-NEXT: ldr w12, [x11, x8, lsl #2]73; CHECK-NEXT: cbnz w12, .LBB1_674; CHECK-NEXT: // %bb.4: // %for.cond75; CHECK-NEXT: // in Loop: Header=BB1_2 Depth=176; CHECK-NEXT: add x8, x8, #177; CHECK-NEXT: cmp x9, x878; CHECK-NEXT: b.ne .LBB1_279; CHECK-NEXT: .LBB1_5:80; CHECK-NEXT: mov x0, xzr81; CHECK-NEXT: ret82; CHECK-NEXT: .LBB1_6: // %if.then.return.loopexit_crit_edge83; CHECK-NEXT: add x0, x8, #384; CHECK-NEXT: .LBB1_7: // %return85; CHECK-NEXT: ret86entry:87 %cmp13 = icmp sgt i32 %c, 088 br i1 %cmp13, label %for.body.preheader, label %return89 90for.body.preheader: ; preds = %entry91 %wide.trip.count = zext i32 %c to i6492 br label %for.body93 94for.cond: ; preds = %for.body95 %iv.next = add nuw nsw i64 %iv, 196 %exitcond.not = icmp eq i64 %iv.next, %wide.trip.count97 br i1 %exitcond.not, label %return, label %for.body98 99for.body: ; preds = %for.body.preheader, %for.cond100 %iv = phi i64 [ 0, %for.body.preheader ], [ %iv.next, %for.cond ]101 %iv.a = phi i64 [ 1, %for.body.preheader ], [ %iv.next.a, %for.cond ]102 %iv.b = phi i64 [ 2, %for.body.preheader ], [ %iv.next.b, %for.cond ]103 %arrayidx.a = getelementptr inbounds i32, ptr %a, i64 %iv.a104 %iv.next.a = add nuw nsw i64 %iv.a, 1105 %val.a = load i32, ptr %arrayidx.a, align 4106 %tobool3.not = icmp eq i32 %val.a, 0107 br i1 %tobool3.not, label %if.then, label %return108 109if.then:110 %arrayidx.b = getelementptr inbounds i32, ptr %b, i64 %iv.b111 %iv.next.b = add nuw nsw i64 %iv.b, 1112 %val.b = load i32, ptr %arrayidx.b, align 4113 %tobool4.not = icmp eq i32 %val.b, 0114 br i1 %tobool4.not, label %for.cond, label %return115 116return: ; preds = %for.cond, %for.body, %entry117 %retval.1 = phi i64 [ 0, %entry ], [ 0, %for.cond ], [ 1, %for.body ], [ %iv.next.b, %if.then ]118 ret i64 %retval.1119}120 121%struct.A = type { i32 }122 123; this used to crash because the load type is struct124 125define i32 @negative_test_type_is_struct(i32 %c, ptr %a, ptr %b) {126; CHECK-LABEL: negative_test_type_is_struct:127; CHECK: // %bb.0: // %entry128; CHECK-NEXT: cmp w0, #1129; CHECK-NEXT: b.lt .LBB2_4130; CHECK-NEXT: // %bb.1: // %for.body.preheader131; CHECK-NEXT: mov w8, w0132; CHECK-NEXT: .LBB2_2: // %for.body133; CHECK-NEXT: // =>This Inner Loop Header: Depth=1134; CHECK-NEXT: ldr w9, [x1], #4135; CHECK-NEXT: cbnz w9, .LBB2_5136; CHECK-NEXT: // %bb.3: // %for.cond137; CHECK-NEXT: // in Loop: Header=BB2_2 Depth=1138; CHECK-NEXT: subs x8, x8, #1139; CHECK-NEXT: b.ne .LBB2_2140; CHECK-NEXT: .LBB2_4:141; CHECK-NEXT: mov w0, wzr142; CHECK-NEXT: ret143; CHECK-NEXT: .LBB2_5:144; CHECK-NEXT: mov w0, #1 // =0x1145; CHECK-NEXT: ret146entry:147 %cmp13 = icmp sgt i32 %c, 0148 br i1 %cmp13, label %for.body.preheader, label %return149 150for.body.preheader: ; preds = %entry151 %wide.trip.count = zext i32 %c to i64152 br label %for.body153 154for.cond: ; preds = %for.body155 %iv.next = add nuw nsw i64 %iv, 1156 %exitcond.not = icmp eq i64 %iv.next, %wide.trip.count157 br i1 %exitcond.not, label %return, label %for.body158 159for.body: ; preds = %for.body.preheader, %for.cond160 %iv = phi i64 [ 0, %for.body.preheader ], [ %iv.next, %for.cond ]161 %arrayidx = getelementptr inbounds i32, ptr %a, i64 %iv162 %str.val = load %struct.A, ptr %arrayidx163 %val = extractvalue %struct.A %str.val, 0164 %tobool3.not = icmp eq i32 %val, 0165 br i1 %tobool3.not, label %for.cond, label %return166 167return: ; preds = %for.cond, %for.body, %entry168 %retval.1 = phi i32 [ 0, %entry ], [ 0, %for.cond ], [ 1, %for.body ]169 ret i32 %retval.1170}171 172