summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRichard Henderson <rth@twiddle.net>2013-02-19 23:52:21 -0800
committerBlue Swirl <blauwirbel@gmail.com>2013-02-23 17:25:30 +0000
commit15fe216fc510c2a0ecf39536bbbc92ba75beb963 (patch)
tree4a8097226e7627a083e9ab20592aae88f2403308
parente4a2c846248ff8e786e741bc4bc3103b24dfba74 (diff)
downloadhqemu-15fe216fc510c2a0ecf39536bbbc92ba75beb963.zip
hqemu-15fe216fc510c2a0ecf39536bbbc92ba75beb963.tar.gz
target-sparc: Use official add2/sub2 interfaces for addx/subx
Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--target-sparc/translate.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index 26c2056..a5678b0 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -448,19 +448,16 @@ static void gen_op_addx_int(DisasContext *dc, TCGv dst, TCGv src1,
case CC_OP_ADD:
case CC_OP_TADD:
case CC_OP_TADDTV:
-#if TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 32
- {
- /* For 32-bit hosts, we can re-use the host's hardware carry
- generation by using an ADD2 opcode. We discard the low
- part of the output. Ideally we'd combine this operation
- with the add that generated the carry in the first place. */
- TCGv dst_low = tcg_temp_new();
- tcg_gen_op6_i32(INDEX_op_add2_i32, dst_low, dst,
- cpu_cc_src, src1, cpu_cc_src2, src2);
- tcg_temp_free(dst_low);
+ if (TARGET_LONG_BITS == 32) {
+ /* We can re-use the host's hardware carry generation by using
+ an ADD2 opcode. We discard the low part of the output.
+ Ideally we'd combine this operation with the add that
+ generated the carry in the first place. */
+ carry = tcg_temp_new();
+ tcg_gen_add2_tl(carry, dst, cpu_cc_src, src1, cpu_cc_src2, src2);
+ tcg_temp_free(carry);
goto add_done;
}
-#endif
carry_32 = gen_add32_carry32();
break;
@@ -492,9 +489,7 @@ static void gen_op_addx_int(DisasContext *dc, TCGv dst, TCGv src1,
tcg_temp_free(carry);
#endif
-#if TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 32
add_done:
-#endif
if (update_cc) {
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
@@ -554,19 +549,16 @@ static void gen_op_subx_int(DisasContext *dc, TCGv dst, TCGv src1,
case CC_OP_SUB:
case CC_OP_TSUB:
case CC_OP_TSUBTV:
-#if TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 32
- {
- /* For 32-bit hosts, we can re-use the host's hardware carry
- generation by using a SUB2 opcode. We discard the low
- part of the output. Ideally we'd combine this operation
- with the add that generated the carry in the first place. */
- TCGv dst_low = tcg_temp_new();
- tcg_gen_op6_i32(INDEX_op_sub2_i32, dst_low, dst,
- cpu_cc_src, src1, cpu_cc_src2, src2);
- tcg_temp_free(dst_low);
+ if (TARGET_LONG_BITS == 32) {
+ /* We can re-use the host's hardware carry generation by using
+ a SUB2 opcode. We discard the low part of the output.
+ Ideally we'd combine this operation with the add that
+ generated the carry in the first place. */
+ carry = tcg_temp_new();
+ tcg_gen_sub2_tl(carry, dst, cpu_cc_src, src1, cpu_cc_src2, src2);
+ tcg_temp_free(carry);
goto sub_done;
}
-#endif
carry_32 = gen_sub32_carry32();
break;
@@ -592,9 +584,7 @@ static void gen_op_subx_int(DisasContext *dc, TCGv dst, TCGv src1,
tcg_temp_free(carry);
#endif
-#if TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 32
sub_done:
-#endif
if (update_cc) {
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
OpenPOWER on IntegriCloud