1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 2; RUN: llc -mtriple=aarch64 -mattr=+sve < %s | FileCheck %s 3 4; Test that we do not end in an infinite loop (https://github.com/llvm/llvm-project/issues/63322) 5 6declare void @llvm.masked.scatter.nxv16i8.nxv16p0(<vscale x 16 x i8>, <vscale x 16 x ptr>, i32 immarg, <vscale x 16 x i1>) 7 8define fastcc i8 @allocno_reload_assign(ptr %p) { 9; CHECK-LABEL: allocno_reload_assign: 10; CHECK: // %bb.0: 11; CHECK-NEXT: fmov d0, xzr 12; CHECK-NEXT: ptrue p0.d 13; CHECK-NEXT: mov z16.d, #0 // =0x0 14; CHECK-NEXT: cmpeq p0.d, p0/z, z0.d, #0 15; CHECK-NEXT: uzp1 p0.s, p0.s, p0.s 16; CHECK-NEXT: uzp1 p0.h, p0.h, p0.h 17; CHECK-NEXT: uzp1 p8.b, p0.b, p0.b 18; CHECK-NEXT: mov z0.b, p8/z, #1 // =0x1 19; CHECK-NEXT: fmov w8, s0 20; CHECK-NEXT: mov z0.b, #0 // =0x0 21; CHECK-NEXT: uunpklo z1.h, z0.b 22; CHECK-NEXT: uunpkhi z0.h, z0.b 23; CHECK-NEXT: mvn w8, w8 24; CHECK-NEXT: sbfx x8, x8, #0, #1 25; CHECK-NEXT: whilelo p0.b, xzr, x8 26; CHECK-NEXT: uunpklo z2.s, z1.h 27; CHECK-NEXT: uunpkhi z3.s, z1.h 28; CHECK-NEXT: uunpklo z5.s, z0.h 29; CHECK-NEXT: uunpkhi z7.s, z0.h 30; CHECK-NEXT: punpklo p1.h, p0.b 31; CHECK-NEXT: punpkhi p0.h, p0.b 32; CHECK-NEXT: punpklo p2.h, p1.b 33; CHECK-NEXT: punpkhi p4.h, p1.b 34; CHECK-NEXT: uunpklo z0.d, z2.s 35; CHECK-NEXT: uunpkhi z1.d, z2.s 36; CHECK-NEXT: punpklo p6.h, p0.b 37; CHECK-NEXT: uunpklo z2.d, z3.s 38; CHECK-NEXT: uunpkhi z3.d, z3.s 39; CHECK-NEXT: punpkhi p0.h, p0.b 40; CHECK-NEXT: uunpklo z4.d, z5.s 41; CHECK-NEXT: uunpkhi z5.d, z5.s 42; CHECK-NEXT: uunpklo z6.d, z7.s 43; CHECK-NEXT: uunpkhi z7.d, z7.s 44; CHECK-NEXT: punpklo p1.h, p2.b 45; CHECK-NEXT: punpkhi p2.h, p2.b 46; CHECK-NEXT: punpklo p3.h, p4.b 47; CHECK-NEXT: punpkhi p4.h, p4.b 48; CHECK-NEXT: punpklo p5.h, p6.b 49; CHECK-NEXT: punpkhi p6.h, p6.b 50; CHECK-NEXT: punpklo p7.h, p0.b 51; CHECK-NEXT: punpkhi p0.h, p0.b 52; CHECK-NEXT: .LBB0_1: // =>This Inner Loop Header: Depth=1 53; CHECK-NEXT: st1b { z0.d }, p1, [z16.d] 54; CHECK-NEXT: st1b { z1.d }, p2, [z16.d] 55; CHECK-NEXT: st1b { z2.d }, p3, [z16.d] 56; CHECK-NEXT: st1b { z3.d }, p4, [z16.d] 57; CHECK-NEXT: st1b { z4.d }, p5, [z16.d] 58; CHECK-NEXT: st1b { z5.d }, p6, [z16.d] 59; CHECK-NEXT: st1b { z6.d }, p7, [z16.d] 60; CHECK-NEXT: st1b { z7.d }, p0, [z16.d] 61; CHECK-NEXT: str p8, [x0] 62; CHECK-NEXT: b .LBB0_1 63 br label %1 64 651: ; preds = %1, %0 66 %constexpr = icmp eq <vscale x 16 x ptr> insertelement (<vscale x 16 x ptr> poison, ptr null, i64 0), zeroinitializer 67 %constexpr1 = shufflevector <vscale x 16 x i1> %constexpr, <vscale x 16 x i1> poison, <vscale x 16 x i32> zeroinitializer 68 %constexpr2 = xor <vscale x 16 x i1> %constexpr1, shufflevector (<vscale x 16 x i1> insertelement (<vscale x 16 x i1> poison, i1 true, i64 0), <vscale x 16 x i1> poison, <vscale x 16 x i32> zeroinitializer) 69 call void @llvm.masked.scatter.nxv16i8.nxv16p0(<vscale x 16 x i8> zeroinitializer, <vscale x 16 x ptr> zeroinitializer, i32 0, <vscale x 16 x i1> %constexpr2) 70 store <vscale x 16 x i1> %constexpr, ptr %p, align 16 71 br label %1 72} 73 74uselistorder <vscale x 16 x i1> poison, { 1, 2, 0 } 75