diff options
| -rw-r--r-- | orc/orcrules-mips.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/orc/orcrules-mips.c b/orc/orcrules-mips.c index 65ec982..143b23d 100644 --- a/orc/orcrules-mips.c +++ b/orc/orcrules-mips.c @@ -281,8 +281,14 @@ mips_rule_convsbw (OrcCompiler *compiler, void *user, OrcInstruction *insn) /* left shift 8 bits, then right shift signed 8 bits, so that the sign bit * gets replicated in the upper 8 bits */ - orc_mips_emit_shll_ph (compiler, dest, src, 8); - orc_mips_emit_shra_ph (compiler, dest, dest, 8); + if (compiler->insn_shift > 0) { + orc_mips_emit_preceu_ph_qbr (compiler, dest, src); + orc_mips_emit_shll_ph (compiler, dest, dest, 8); + orc_mips_emit_shra_ph (compiler, dest, dest, 8); + } else { + orc_mips_emit_shll_ph (compiler, dest, src, 8); + orc_mips_emit_shra_ph (compiler, dest, dest, 8); + } } void |