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authorRichard Henderson <rth@twiddle.net>2013-01-31 09:45:11 -0800
committerRichard Henderson <rth@twiddle.net>2013-04-15 20:09:52 +0200
commitef809300fcf300a3efef479734e9456dc5b7581c (patch)
tree6722702efbe0be35cf41dca04560f1e1d788009c
parent33de9ed2235f8729c36110906c6806b361f96a24 (diff)
tcg-ppc64: Use I constraint for mul
The mul_i32 pattern was loading non-16-bit constants into a register, when we can get the middle-end to do that for us. The mul_i64 pattern was not considering that MULLI takes 64-bit inputs. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--tcg/ppc64/tcg-target.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c
index 440517895a..56e70db912 100644
--- a/tcg/ppc64/tcg-target.c
+++ b/tcg/ppc64/tcg-target.c
@@ -1471,17 +1471,12 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args,
break;
case INDEX_op_mul_i32:
+ a0 = args[0], a1 = args[1], a2 = args[2];
if (const_args[2]) {
- if (args[2] == (int16_t) args[2])
- tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
- | (args[2] & 0xffff));
- else {
- tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
- tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
- }
+ tcg_out32(s, MULLI | TAI(a0, a1, a2));
+ } else {
+ tcg_out32(s, MULLW | TAB(a0, a1, a2));
}
- else
- tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
break;
case INDEX_op_div_i32:
@@ -1646,7 +1641,12 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args,
break;
case INDEX_op_mul_i64:
- tcg_out32 (s, MULLD | TAB (args[0], args[1], args[2]));
+ a0 = args[0], a1 = args[1], a2 = args[2];
+ if (const_args[2]) {
+ tcg_out32(s, MULLI | TAI(a0, a1, a2));
+ } else {
+ tcg_out32(s, MULLD | TAB(a0, a1, a2));
+ }
break;
case INDEX_op_div_i64:
tcg_out32 (s, DIVD | TAB (args[0], args[1], args[2]));
@@ -1844,7 +1844,7 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_ld32s_i64, { "r", "r" } },
{ INDEX_op_add_i32, { "r", "r", "ri" } },
- { INDEX_op_mul_i32, { "r", "r", "ri" } },
+ { INDEX_op_mul_i32, { "r", "r", "rI" } },
{ INDEX_op_div_i32, { "r", "r", "r" } },
{ INDEX_op_divu_i32, { "r", "r", "r" } },
{ INDEX_op_rem_i32, { "r", "r", "r" } },
@@ -1888,7 +1888,7 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_rotl_i64, { "r", "r", "ri" } },
{ INDEX_op_rotr_i64, { "r", "r", "ri" } },
- { INDEX_op_mul_i64, { "r", "r", "r" } },
+ { INDEX_op_mul_i64, { "r", "r", "rI" } },
{ INDEX_op_div_i64, { "r", "r", "r" } },
{ INDEX_op_divu_i64, { "r", "r", "r" } },
{ INDEX_op_rem_i64, { "r", "r", "r" } },