test/codegen/constants.go

   1 // asmcheck
   2
   3 // Copyright 2023 The Go Authors. All rights reserved.
   4 // Use of this source code is governed by a BSD-style
   5 // license that can be found in the LICENSE file.
   6
   7 package codegen
   8
   9 // A uint16 or sint16 constant shifted left.
  10 func shifted16BitConstants(out [64]uint64) {
  11         // ppc64x: "MOVD\t[$]8193,", "SLD\t[$]27,"
  12         out[0] = 0x0000010008000000
  13         // ppc64x: "MOVD\t[$]-32767", "SLD\t[$]26,"
  14         out[1] = 0xFFFFFE0004000000
  15         // ppc64x: "MOVD\t[$]-1", "SLD\t[$]48,"
  16         out[2] = 0xFFFF000000000000
  17         // ppc64x: "MOVD\t[$]65535", "SLD\t[$]44,"
  18         out[3] = 0x0FFFF00000000000
  19 }
  20
  21 // A contiguous set of 1 bits, potentially wrapping.
  22 func contiguousMaskConstants(out [64]uint64) {
  23         // ppc64x: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]44, [$]63,"
  24         out[0] = 0xFFFFF00000000001
  25         // ppc64x: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]43, [$]63,"
  26         out[1] = 0xFFFFF80000000001
  27         // ppc64x: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]43, [$]4,"
  28         out[2] = 0x0FFFF80000000000
  29         // ppc64x/power8: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]33, [$]63,"
  30         // ppc64x/power9: "MOVD\t[$]-1", "RLDC\tR[0-9]+, [$]33, [$]63,"
  31         // ppc64x/power10: "MOVD\t[$]-8589934591,"
  32         out[3] = 0xFFFFFFFE00000001
  33 }