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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 22; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp %s -o - | FileCheck %s3 4; This loop has a vpt block that should not block tailpredication5define void @convert_vptblock(ptr %pchTarget, i16 signext %iTargetStride, ptr %pwLineMask, ptr %ptCopySize, i8 zeroext %chColour, i8 zeroext %chOpacity) {6; CHECK-LABEL: convert_vptblock:7; CHECK: @ %bb.0: @ %entry8; CHECK-NEXT: ldrsh.w r12, [r3, #2]9; CHECK-NEXT: cmp.w r12, #110; CHECK-NEXT: it lt11; CHECK-NEXT: bxlt lr12; CHECK-NEXT: .LBB0_1: @ %for.body.lr.ph13; CHECK-NEXT: .save {r4, r5, r6, r7, r8, r9, r10, r11, lr}14; CHECK-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10, r11, lr}15; CHECK-NEXT: .pad #416; CHECK-NEXT: sub sp, #417; CHECK-NEXT: .vsave {d8, d9, d10, d11, d12, d13}18; CHECK-NEXT: vpush {d8, d9, d10, d11, d12, d13}19; CHECK-NEXT: ldrsh.w r10, [r3]20; CHECK-NEXT: mov.w r8, #021; CHECK-NEXT: ldrd r4, r5, [sp, #88]22; CHECK-NEXT: mov r7, r023; CHECK-NEXT: mov.w r11, #024; CHECK-NEXT: vidup.u16 q0, r8, #425; CHECK-NEXT: vmov.i32 q1, #0x026; CHECK-NEXT: vmov.i16 q2, #0x10027; CHECK-NEXT: vmov.i16 q3, #0xff28; CHECK-NEXT: .LBB0_2: @ %for.body29; CHECK-NEXT: @ =>This Loop Header: Depth=130; CHECK-NEXT: @ Child Loop BB0_3 Depth 231; CHECK-NEXT: vmov q4, q032; CHECK-NEXT: mov r6, r833; CHECK-NEXT: mov r0, r734; CHECK-NEXT: dlstp.16 lr, r1035; CHECK-NEXT: .LBB0_3: @ %do.body36; CHECK-NEXT: @ Parent Loop BB0_2 Depth=137; CHECK-NEXT: @ => This Inner Loop Header: Depth=238; CHECK-NEXT: vldrb.u16 q5, [r2, q4]39; CHECK-NEXT: vmul.i16 q4, q5, r540; CHECK-NEXT: vshr.u16 q4, q4, #841; CHECK-NEXT: vsub.i16 q5, q2, q442; CHECK-NEXT: vpt.i16 eq, q4, q343; CHECK-NEXT: vmovt q5, q144; CHECK-NEXT: vldrb.u16 q6, [r0]45; CHECK-NEXT: vsub.i16 q4, q2, q546; CHECK-NEXT: vmul.i16 q5, q5, q647; CHECK-NEXT: vmla.i16 q5, q4, r448; CHECK-NEXT: vshr.u16 q4, q5, #849; CHECK-NEXT: vstrb.16 q4, [r0], #850; CHECK-NEXT: vidup.u16 q4, r6, #451; CHECK-NEXT: letp lr, .LBB0_352; CHECK-NEXT: @ %bb.4: @ %do.end53; CHECK-NEXT: @ in Loop: Header=BB0_2 Depth=154; CHECK-NEXT: add.w r0, r11, #155; CHECK-NEXT: add r7, r156; CHECK-NEXT: sxth.w r11, r057; CHECK-NEXT: cmp r11, r1258; CHECK-NEXT: blt .LBB0_259; CHECK-NEXT: @ %bb.5:60; CHECK-NEXT: vpop {d8, d9, d10, d11, d12, d13}61; CHECK-NEXT: add sp, #462; CHECK-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10, r11, lr}63; CHECK-NEXT: bx lr64entry:65 %iHeight1 = getelementptr inbounds i8, ptr %ptCopySize, i32 266 %0 = load i16, ptr %iHeight1, align 267 %cmp28 = icmp sgt i16 %0, 068 br i1 %cmp28, label %for.body.lr.ph, label %for.cond.cleanup69 70for.body.lr.ph: ; preds = %entry71 %1 = load i16, ptr %ptCopySize, align 272 %conv5 = sext i16 %1 to i3273 %2 = tail call { <8 x i16>, i32 } @llvm.arm.mve.vidup.v8i16(i32 0, i32 4)74 %conv6 = zext i8 %chOpacity to i1675 %.splatinsert = insertelement <8 x i16> poison, i16 %conv6, i64 076 %.splat = shufflevector <8 x i16> %.splatinsert, <8 x i16> poison, <8 x i32> zeroinitializer77 %conv7 = zext i8 %chColour to i1678 %.splatinsert.i = insertelement <8 x i16> poison, i16 %conv7, i64 079 %.splat.i = shufflevector <8 x i16> %.splatinsert.i, <8 x i16> poison, <8 x i32> zeroinitializer80 %conv11 = sext i16 %iTargetStride to i3281 br label %for.body82 83for.cond.cleanup: ; preds = %do.end, %entry84 ret void85 86for.body: ; preds = %for.body.lr.ph, %do.end87 %pchTarget.addr.030 = phi ptr [ %pchTarget, %for.body.lr.ph ], [ %add.ptr12, %do.end ]88 %y.029 = phi i16 [ 0, %for.body.lr.ph ], [ %inc, %do.end ]89 br label %do.body90 91do.body: ; preds = %do.body, %for.body92 %blkCnt.0 = phi i32 [ %conv5, %for.body ], [ %sub8, %do.body ]93 %.pn = phi { <8 x i16>, i32 } [ %2, %for.body ], [ %13, %do.body ]94 %pchTargetLine.0 = phi ptr [ %pchTarget.addr.030, %for.body ], [ %add.ptr, %do.body ]95 %vStride4Offs.0 = extractvalue { <8 x i16>, i32 } %.pn, 096 %incr.0 = extractvalue { <8 x i16>, i32 } %.pn, 197 %3 = tail call <8 x i1> @llvm.arm.mve.vctp16(i32 %blkCnt.0)98 %4 = tail call <8 x i16> @llvm.arm.mve.vldr.gather.offset.predicated.v8i16.p0.v8i16.v8i1(ptr %pwLineMask, <8 x i16> %vStride4Offs.0, i32 8, i32 0, i32 1, <8 x i1> %3)99 %5 = mul <8 x i16> %4, %.splat100 %shr = lshr <8 x i16> %5, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8>101 %6 = icmp eq <8 x i16> %shr, <i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255>102 %7 = sub nuw nsw <8 x i16> <i16 256, i16 256, i16 256, i16 256, i16 256, i16 256, i16 256, i16 256>, %shr103 %sub = select <8 x i1> %6, <8 x i16> zeroinitializer, <8 x i16> %7104 %8 = tail call <8 x i8> @llvm.masked.load.v8i8.p0(ptr %pchTargetLine.0, i32 1, <8 x i1> %3, <8 x i8> zeroinitializer)105 %9 = zext <8 x i8> %8 to <8 x i16>106 %sub.i = sub nsw <8 x i16> <i16 256, i16 256, i16 256, i16 256, i16 256, i16 256, i16 256, i16 256>, %sub107 %10 = mul <8 x i16> %sub.i, %.splat.i108 %11 = mul <8 x i16> %sub, %9109 %add.i = add <8 x i16> %10, %11110 %shr.i = lshr <8 x i16> %add.i, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8>111 %12 = trunc nuw <8 x i16> %shr.i to <8 x i8>112 tail call void @llvm.masked.store.v8i8.p0(<8 x i8> %12, ptr %pchTargetLine.0, i32 1, <8 x i1> %3)113 %13 = tail call { <8 x i16>, i32 } @llvm.arm.mve.vidup.v8i16(i32 %incr.0, i32 4)114 %add.ptr = getelementptr inbounds i8, ptr %pchTargetLine.0, i32 8115 %sub8 = add nsw i32 %blkCnt.0, -8116 %cmp9 = icmp sgt i32 %blkCnt.0, 8117 br i1 %cmp9, label %do.body, label %do.end118 119do.end: ; preds = %do.body120 %add.ptr12 = getelementptr inbounds i8, ptr %pchTarget.addr.030, i32 %conv11121 %inc = add nuw nsw i16 %y.029, 1122 %cmp = icmp slt i16 %inc, %0123 br i1 %cmp, label %for.body, label %for.cond.cleanup124}125 126; This loop has an else predicate on the vqshl, which is not very realistic but127; prevents us from converting to a vptblock without being able to remove it.128define i32 @else(ptr %s1, ptr %s2, i32 %x, ptr %d, i32 %n) {129; CHECK-LABEL: else:130; CHECK: @ %bb.0: @ %entry131; CHECK-NEXT: .save {r7, lr}132; CHECK-NEXT: push {r7, lr}133; CHECK-NEXT: ldr r2, [sp, #8]134; CHECK-NEXT: cmp r2, #4135; CHECK-NEXT: mov r3, r2136; CHECK-NEXT: it ge137; CHECK-NEXT: movge r3, #4138; CHECK-NEXT: subs r3, r2, r3139; CHECK-NEXT: add.w r12, r3, #3140; CHECK-NEXT: movs r3, #1141; CHECK-NEXT: add.w r12, r3, r12, lsr #2142; CHECK-NEXT: movs r3, #98143; CHECK-NEXT: dls lr, r12144; CHECK-NEXT: .LBB1_1: @ %do.body145; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1146; CHECK-NEXT: vctp.32 r2147; CHECK-NEXT: subs r2, #4148; CHECK-NEXT: vpstt149; CHECK-NEXT: vldrwt.u32 q1, [r1], #16150; CHECK-NEXT: vldrwt.u32 q0, [r0]151; CHECK-NEXT: vmov q2, q1152; CHECK-NEXT: vpstet153; CHECK-NEXT: vqdmlsdht.s32 q2, q1, q0154; CHECK-NEXT: vqshle.u32 q2, r3155; CHECK-NEXT: vstrwt.32 q2, [r0], #16156; CHECK-NEXT: le lr, .LBB1_1157; CHECK-NEXT: @ %bb.2: @ %do.end158; CHECK-NEXT: movs r0, #0159; CHECK-NEXT: pop {r7, pc}160entry:161 br label %do.body162 163do.body: ; preds = %do.body, %entry164 %n.addr.0 = phi i32 [ %n, %entry ], [ %sub, %do.body ]165 %s2.addr.0 = phi ptr [ %s2, %entry ], [ %add.ptr1, %do.body ]166 %s1.addr.0 = phi ptr [ %s1, %entry ], [ %add.ptr, %do.body ]167 %0 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %n.addr.0)168 %1 = tail call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %s1.addr.0, i32 4, <4 x i1> %0, <4 x i32> zeroinitializer)169 %2 = tail call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %s2.addr.0, i32 4, <4 x i1> %0, <4 x i32> zeroinitializer)170 %3 = tail call <4 x i32> @llvm.arm.mve.vqdmlad.predicated.v4i32.v4i1(<4 x i32> %2, <4 x i32> %2, <4 x i32> %1, i32 0, i32 0, i32 1, <4 x i1> %0)171 %4 = xor <4 x i1> %0, <i1 true, i1 true, i1 true, i1 true>172 %5 = tail call <4 x i32> @llvm.arm.mve.vshl.scalar.predicated.v4i32.v4i1(<4 x i32> %3, i32 98, i32 1, i32 0, i32 1, <4 x i1> %4)173 tail call void @llvm.masked.store.v4i32.p0(<4 x i32> %5, ptr %s1.addr.0, i32 4, <4 x i1> %0)174 %add.ptr = getelementptr inbounds i8, ptr %s1.addr.0, i32 16175 %add.ptr1 = getelementptr inbounds i8, ptr %s2.addr.0, i32 16176 %sub = add nsw i32 %n.addr.0, -4177 %cmp = icmp sgt i32 %n.addr.0, 4178 br i1 %cmp, label %do.body, label %do.end179 180do.end: ; preds = %do.body181 ret i32 0182}183