diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.cc')
| -rw-r--r-- | gcc/config/rs6000/rs6000.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc index 3f129ea37d2..275fb813c80 100644 --- a/gcc/config/rs6000/rs6000.cc +++ b/gcc/config/rs6000/rs6000.cc @@ -10289,6 +10289,13 @@ rs6000_emit_set_long_const (rtx dest, HOST_WIDE_INT c) if (ud1 != 0) emit_move_insn (dest, gen_rtx_IOR (DImode, temp, GEN_INT (ud1))); } + else if (ud4 == 0xffff && ud3 == 0xffff && !(ud2 & 0x8000) && ud1 == 0) + { + /* lis; xoris */ + temp = !can_create_pseudo_p () ? dest : gen_reg_rtx (DImode); + emit_move_insn (temp, GEN_INT (sext_hwi ((ud2 | 0x8000) << 16, 32))); + emit_move_insn (dest, gen_rtx_XOR (DImode, temp, GEN_INT (0x80000000))); + } else if (ud4 == 0xffff && ud3 == 0xffff && (ud1 & 0x8000)) { /* li; xoris */ |