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authorRichard Henderson <rth@twiddle.net>2014-03-19 13:32:36 -0700
committerRichard Henderson <rth@twiddle.net>2014-04-17 11:47:42 -0700
commitef3765cb950a0439821a01dc2ac63237927b3277 (patch)
tree98f21db9296ea5a6ecf7708137a2a7f1fe9de1e7 /target-alpha
parente8d8fef48f1ac5997baa499165e7dc1c123c6e9f (diff)
downloadqemu-arm-ef3765cb950a0439821a01dc2ac63237927b3277.tar.gz
target-alpha: Convert gen_cpys et al to source/sink
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-alpha')
-rw-r--r--target-alpha/translate.c100
1 files changed, 24 insertions, 76 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index 59ae23d7d3..c57e606d9d 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -836,79 +836,22 @@ static inline void glue(gen_f, name)(DisasContext *ctx, \
IEEE_INTCVT(cvtqs)
IEEE_INTCVT(cvtqt)
-static void gen_cpys_internal(int ra, int rb, int rc, int inv_a, uint64_t mask)
+static void gen_cpy_mask(TCGv vc, TCGv va, TCGv vb, bool inv_a, uint64_t mask)
{
- TCGv va, vb, vmask;
- int za = 0, zb = 0;
+ TCGv vmask = tcg_const_i64(mask);
+ TCGv tmp = tcg_temp_new_i64();
- if (unlikely(rc == 31)) {
- return;
- }
-
- vmask = tcg_const_i64(mask);
-
- TCGV_UNUSED_I64(va);
- if (ra == 31) {
- if (inv_a) {
- va = vmask;
- } else {
- za = 1;
- }
+ if (inv_a) {
+ tcg_gen_andc_i64(tmp, vmask, va);
} else {
- va = tcg_temp_new_i64();
- tcg_gen_mov_i64(va, cpu_fir[ra]);
- if (inv_a) {
- tcg_gen_andc_i64(va, vmask, va);
- } else {
- tcg_gen_and_i64(va, va, vmask);
- }
+ tcg_gen_and_i64(tmp, va, vmask);
}
- TCGV_UNUSED_I64(vb);
- if (rb == 31) {
- zb = 1;
- } else {
- vb = tcg_temp_new_i64();
- tcg_gen_andc_i64(vb, cpu_fir[rb], vmask);
- }
-
- switch (za << 1 | zb) {
- case 0 | 0:
- tcg_gen_or_i64(cpu_fir[rc], va, vb);
- break;
- case 0 | 1:
- tcg_gen_mov_i64(cpu_fir[rc], va);
- break;
- case 2 | 0:
- tcg_gen_mov_i64(cpu_fir[rc], vb);
- break;
- case 2 | 1:
- tcg_gen_movi_i64(cpu_fir[rc], 0);
- break;
- }
+ tcg_gen_andc_i64(vc, vb, vmask);
+ tcg_gen_or_i64(vc, vc, tmp);
tcg_temp_free(vmask);
- if (ra != 31) {
- tcg_temp_free(va);
- }
- if (rb != 31) {
- tcg_temp_free(vb);
- }
-}
-
-static inline void gen_fcpys(int ra, int rb, int rc)
-{
- gen_cpys_internal(ra, rb, rc, 0, 0x8000000000000000ULL);
-}
-
-static inline void gen_fcpysn(int ra, int rb, int rc)
-{
- gen_cpys_internal(ra, rb, rc, 1, 0x8000000000000000ULL);
-}
-
-static inline void gen_fcpyse(int ra, int rb, int rc)
-{
- gen_cpys_internal(ra, rb, rc, 0, 0xFFF0000000000000ULL);
+ tcg_temp_free(tmp);
}
static void gen_ieee_arith3(DisasContext *ctx,
@@ -2238,26 +2181,31 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
/* CPYS */
if (rc == 31) {
/* Special case CPYS as FNOP. */
- } else if (ra == rb) {
+ } else {
vc = dest_fpr(ctx, rc);
- /* Special case CPYS as FMOV. */
- if (ra == 31) {
- tcg_gen_movi_i64(vc, 0);
- } else {
- va = load_fpr(ctx, ra);
+ va = load_fpr(ctx, ra);
+ if (ra == rb) {
+ /* Special case CPYS as FMOV. */
tcg_gen_mov_i64(vc, va);
+ } else {
+ vb = load_fpr(ctx, rb);
+ gen_cpy_mask(vc, va, vb, 0, 0x8000000000000000ULL);
}
- } else {
- gen_fcpys(ra, rb, rc);
}
break;
case 0x021:
/* CPYSN */
- gen_fcpysn(ra, rb, rc);
+ vc = dest_fpr(ctx, rc);
+ vb = load_fpr(ctx, rb);
+ va = load_fpr(ctx, ra);
+ gen_cpy_mask(vc, va, vb, 1, 0x8000000000000000ULL);
break;
case 0x022:
/* CPYSE */
- gen_fcpyse(ra, rb, rc);
+ vc = dest_fpr(ctx, rc);
+ vb = load_fpr(ctx, rb);
+ va = load_fpr(ctx, ra);
+ gen_cpy_mask(vc, va, vb, 0, 0xFFF0000000000000ULL);
break;
case 0x024:
/* MT_FPCR */