89 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -o -| FileCheck %s3 4target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"5target triple = "aarch64-unknown-linux-gnu"6 7; This test covers a case where an AArch64 DUP instruction is generated with an8; invalid encoding, resulting in a crash. We don't care about the specific output9; here, only that this case no longer causes said crash.10define dso_local i32 @dupext_crashtest(i32 %e) local_unnamed_addr {11; CHECK-LABEL: dupext_crashtest:12; CHECK: // %bb.0: // %entry13; CHECK-NEXT: dup v0.2s, w014; CHECK-NEXT: .LBB0_1: // %vector.body15; CHECK-NEXT: // =>This Inner Loop Header: Depth=116; CHECK-NEXT: ldr d1, [x8]17; CHECK-NEXT: smull v1.2d, v0.2s, v1.2s18; CHECK-NEXT: xtn v1.2s, v1.2d19; CHECK-NEXT: str d1, [x8]20; CHECK-NEXT: b .LBB0_121entry:22 %conv314 = zext i32 %e to i6423 br label %vector.memcheck24 25vector.memcheck: ; preds = %for.body.lr.ph26 br label %vector.ph27 28vector.ph: ; preds = %vector.memcheck29 %broadcast.splatinsert = insertelement <2 x i64> poison, i64 %conv314, i32 030 %broadcast.splat = shufflevector <2 x i64> %broadcast.splatinsert, <2 x i64> poison, <2 x i32> zeroinitializer31 br label %vector.body32 33vector.body: ; preds = %vector.body, %vector.ph34 %wide.load = load <2 x i32>, ptr undef, align 435 %0 = zext <2 x i32> %wide.load to <2 x i64>36 %1 = mul nuw <2 x i64> %broadcast.splat, %037 %2 = trunc <2 x i64> %1 to <2 x i32>38 %3 = select <2 x i1> undef, <2 x i32> undef, <2 x i32> %239 %4 = bitcast ptr undef to ptr40 store <2 x i32> %3, ptr %4, align 441 br label %vector.body42}43 44; This test got stuck in a loop hoisting the and to the load, and sinking it back to the mull45define i32 @dup_and_load(ptr %p, i1 %c) {46; CHECK-LABEL: dup_and_load:47; CHECK: // %bb.0: // %entry48; CHECK-NEXT: mov x8, x049; CHECK-NEXT: ldrb w0, [x0]50; CHECK-NEXT: tbz w1, #0, .LBB1_351; CHECK-NEXT: // %bb.1: // %ph52; CHECK-NEXT: dup v0.8h, w053; CHECK-NEXT: mov w9, wzr54; CHECK-NEXT: .LBB1_2: // %vector.body55; CHECK-NEXT: // =>This Inner Loop Header: Depth=156; CHECK-NEXT: ldr d1, [x8]57; CHECK-NEXT: add w9, w9, #158; CHECK-NEXT: cmp w9, #10059; CHECK-NEXT: ushll v1.8h, v1.8b, #060; CHECK-NEXT: umull2 v2.4s, v0.8h, v1.8h61; CHECK-NEXT: umull v1.4s, v0.4h, v1.4h62; CHECK-NEXT: stp q1, q2, [x8]63; CHECK-NEXT: b.lt .LBB1_264; CHECK-NEXT: .LBB1_3: // %end65; CHECK-NEXT: ret66entry:67 %l = load i32, ptr %p68 %and255 = and i32 %l, 25569 br i1 %c, label %ph, label %end70 71ph:72 %broadcast.splatinsert = insertelement <8 x i32> poison, i32 %and255, i32 073 %broadcast.splat = shufflevector <8 x i32> %broadcast.splatinsert, <8 x i32> poison, <8 x i32> zeroinitializer74 br label %vector.body75 76vector.body: ; preds = %vector.body, %vector.ph77 %iv = phi i32 [ 0, %ph ], [ %iv.next, %vector.body ]78 %wide.load = load <8 x i8>, ptr %p, align 479 %0 = zext <8 x i8> %wide.load to <8 x i32>80 %1 = mul <8 x i32> %broadcast.splat, %081 store <8 x i32> %1, ptr %p, align 482 %iv.next = add i32 %iv, 183 %e = icmp slt i32 %iv.next, 10084 br i1 %e, label %vector.body, label %end85 86end:87 ret i32 %and25588}89