diff options
| author | Guillaume Emont <guijemont@igalia.com> | 2012-12-13 18:04:11 +0100 |
|---|---|---|
| committer | Guillaume Emont <guijemont@igalia.com> | 2012-12-28 15:23:39 +0100 |
| commit | efdc4d1b4be18f1cbe66eb5e8b0ef307fadb31c9 (patch) | |
| tree | 93dc137bec3b9b16a26927296e29737260b2c822 | |
| parent | 52b226aa2d2e9c3e0c09b7996e1b65c34f72fb87 (diff) | |
mips: mulswl: sign extend words before multiplying
| -rw-r--r-- | orc/orcrules-mips.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/orc/orcrules-mips.c b/orc/orcrules-mips.c index 8a8b5d4..a776a5c 100644 --- a/orc/orcrules-mips.c +++ b/orc/orcrules-mips.c @@ -188,13 +188,17 @@ mips_rule_copyb (OrcCompiler *compiler, void *user, OrcInstruction *insn) } void -mips_rule_mul (OrcCompiler *compiler, void *user, OrcInstruction *insn) +mips_rule_mulswl (OrcCompiler *compiler, void *user, OrcInstruction *insn) { int src1 = ORC_SRC_ARG (compiler, insn, 0); int src2 = ORC_SRC_ARG (compiler, insn, 1); int dest = ORC_DEST_ARG (compiler, insn, 0); + OrcMipsRegister tmp0 = ORC_MIPS_T3; + OrcMipsRegister tmp1 = ORC_MIPS_T4; - orc_mips_emit_mul (compiler, dest, src1, src2); + orc_mips_emit_seh (compiler, tmp0, src1); + orc_mips_emit_seh (compiler, tmp1, src2); + orc_mips_emit_mul (compiler, dest, tmp0, tmp1); } void @@ -588,7 +592,7 @@ orc_compiler_orc_mips_register_rules (OrcTarget *target) orc_rule_register (rule_set, "copyl", mips_rule_copyl, NULL); orc_rule_register (rule_set, "copyw", mips_rule_copyw, NULL); orc_rule_register (rule_set, "copyb", mips_rule_copyb, NULL); - orc_rule_register (rule_set, "mulswl", mips_rule_mul, NULL); + orc_rule_register (rule_set, "mulswl", mips_rule_mulswl, NULL); orc_rule_register (rule_set, "mullw", mips_rule_mullw, NULL); orc_rule_register (rule_set, "shrsl", mips_rule_shrs, NULL); orc_rule_register (rule_set, "convssslw", mips_rule_convssslw, NULL); |