d6ff986dd2
This is mostly NFC but some output does change due to consistently inserting into poison rather than undef and using i64 as the index type for inserts.
28 lines
1.1 KiB
LLVM
28 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve -verify-machineinstrs < %s | FileCheck %s
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define <vscale x 8 x i16> @test_knownzero(<vscale x 8 x i16> %x) {
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; CHECK-LABEL: test_knownzero:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov z0.h, #0 // =0x0
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; CHECK-NEXT: ret
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%a1 = shl <vscale x 8 x i16> %x, splat (i16 8)
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%a2 = and <vscale x 8 x i16> %a1, splat (i16 8)
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ret <vscale x 8 x i16> %a2
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}
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define <vscale x 4 x i32> @asrlsr(<vscale x 4 x i64> %va) {
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; CHECK-LABEL: asrlsr:
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; CHECK: // %bb.0:
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; CHECK-NEXT: lsr z1.d, z1.d, #15
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; CHECK-NEXT: lsr z0.d, z0.d, #15
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; CHECK-NEXT: uzp1 z0.s, z0.s, z1.s
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; CHECK-NEXT: ret
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%head = insertelement <vscale x 4 x i32> poison, i32 15, i32 0
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%splat = shufflevector <vscale x 4 x i32> %head, <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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%vb = zext <vscale x 4 x i32> %splat to <vscale x 4 x i64>
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%x = ashr <vscale x 4 x i64> %va, %vb
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%y = trunc <vscale x 4 x i64> %x to <vscale x 4 x i32>
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ret <vscale x 4 x i32> %y
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}
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