| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve -verify-machineinstrs < %s | FileCheck %s |
| |
| define <vscale x 8 x i16> @test_knownzero(<vscale x 8 x i16> %x) { |
| ; CHECK-LABEL: test_knownzero: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: mov z0.h, #0 // =0x0 |
| ; CHECK-NEXT: ret |
| %a1 = shl <vscale x 8 x i16> %x, shufflevector (<vscale x 8 x i16> insertelement (<vscale x 8 x i16> poison, i16 8, i32 0), <vscale x 8 x i16> poison, <vscale x 8 x i32> zeroinitializer) |
| %a2 = and <vscale x 8 x i16> %a1, shufflevector (<vscale x 8 x i16> insertelement (<vscale x 8 x i16> poison, i16 8, i32 0), <vscale x 8 x i16> poison, <vscale x 8 x i32> zeroinitializer) |
| ret <vscale x 8 x i16> %a2 |
| } |
| |
| define <vscale x 4 x i32> @asrlsr(<vscale x 4 x i64> %va) { |
| ; CHECK-LABEL: asrlsr: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: lsr z1.d, z1.d, #15 |
| ; CHECK-NEXT: lsr z0.d, z0.d, #15 |
| ; CHECK-NEXT: uzp1 z0.s, z0.s, z1.s |
| ; CHECK-NEXT: ret |
| %head = insertelement <vscale x 4 x i32> poison, i32 15, i32 0 |
| %splat = shufflevector <vscale x 4 x i32> %head, <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer |
| %vb = zext <vscale x 4 x i32> %splat to <vscale x 4 x i64> |
| %x = ashr <vscale x 4 x i64> %va, %vb |
| %y = trunc <vscale x 4 x i64> %x to <vscale x 4 x i32> |
| ret <vscale x 4 x i32> %y |
| } |