[PATCH 12/14] target/s390x: Use op_ld for LOAD REVERSED
Richard Henderson <[email protected]> Fri, 31 Jul 2026 11:56:25 -0700
| Newsgroups | org.nongnu.qemu-devel |
|---|---|
| Message-ID | <[email protected]> |
Use the MemOp parameter to op_ld to directly perform a little-endian load, rather than a separate byte reverse after the load. Signed-off-by: Richard Henderson <[email protected]> --- target/s390x/tcg/translate.c | 7 ------- target/s390x/tcg/insn-data.h.inc | 6 +++--- 2 files changed, 3 insertions(+), 10 deletions(-) diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index 61793a9e80..7c1961567d 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -5760,13 +5760,6 @@ static void in2_m2_16s(DisasContext *s, DisasOps *o) } #define SPEC_in2_m2_16s 0 -static void in2_m2_16u(DisasContext *s, DisasOps *o) -{ - in2_a2(s, o); - tcg_gen_qemu_ld_i64(o->in2, o->in2, get_mem_index(s), MO_BEUW); -} -#define SPEC_in2_m2_16u 0 - static void in2_m2_32s(DisasContext *s, DisasOps *o) { in2_a2(s, o); diff --git a/target/s390x/tcg/insn-data.h.inc b/target/s390x/tcg/insn-data.h.inc index 3611da1ef3..691f8222ab 100644 --- a/target/s390x/tcg/insn-data.h.inc +++ b/target/s390x/tcg/insn-data.h.inc @@ -590,9 +590,9 @@ /* LOAD REVERSED */ C(0xb91f, LRVR, RRE, Z, 0, r2_32u, new, r1_32, rev32, 0) C(0xb90f, LRVGR, RRE, Z, 0, r2_o, r1, 0, rev64, 0) - C(0xe31f, LRVH, RXY_a, Z, 0, m2_16u, new, r1_16, rev16, 0) - C(0xe31e, LRV, RXY_a, Z, 0, m2_32u, new, r1_32, rev32, 0) - C(0xe30f, LRVG, RXY_a, Z, 0, m2_64, r1, 0, rev64, 0) + D(0xe31f, LRVH, RXY_a, Z, 0, a2, new, r1_16, ld, 0, MO_LEUW) + D(0xe31e, LRV, RXY_a, Z, 0, a2, new, r1_32, ld, 0, MO_LEUL) + D(0xe30f, LRVG, RXY_a, Z, 0, a2, r1, 0, ld, 0, MO_LEUQ) /* LOAD ZERO */ F(0xb374, LZER, RRE, Z, 0, 0, 0, e1, zero, 0, IF_AFP1) F(0xb375, LZDR, RRE, Z, 0, 0, 0, f1, zero, 0, IF_AFP1) -- 2.43.0