diff options
| -rw-r--r-- | tcg/i386/tcg-target.c.inc | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 6837c51..59235b4 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -1658,6 +1658,7 @@ static void tcg_out_setcond(TCGContext *s, int rexw, TCGCond cond, TCGArg dest, TCGArg arg1, TCGArg arg2, int const_arg2, bool neg) { + int cmp_rexw = rexw; bool inv = false; bool cleared; int jcc; @@ -1674,6 +1675,18 @@ static void tcg_out_setcond(TCGContext *s, int rexw, TCGCond cond, } break; + case TCG_COND_TSTNE: + inv = true; + /* fall through */ + case TCG_COND_TSTEQ: + /* If arg2 is -1, convert to LTU/GEU vs 1. */ + if (const_arg2 && arg2 == 0xffffffffu) { + arg2 = 1; + cmp_rexw = 0; + goto do_ltu; + } + break; + case TCG_COND_LEU: inv = true; /* fall through */ @@ -1697,7 +1710,7 @@ static void tcg_out_setcond(TCGContext *s, int rexw, TCGCond cond, * We can then use NEG or INC to produce the desired result. * This is always smaller than the SETCC expansion. */ - tcg_out_cmp(s, TCG_COND_LTU, arg1, arg2, const_arg2, rexw); + tcg_out_cmp(s, TCG_COND_LTU, arg1, arg2, const_arg2, cmp_rexw); /* X - X - C = -C = (C ? -1 : 0) */ tgen_arithr(s, ARITH_SBB + (neg ? rexw : 0), dest, dest); @@ -1744,7 +1757,7 @@ static void tcg_out_setcond(TCGContext *s, int rexw, TCGCond cond, cleared = true; } - jcc = tcg_out_cmp(s, cond, arg1, arg2, const_arg2, rexw); + jcc = tcg_out_cmp(s, cond, arg1, arg2, const_arg2, cmp_rexw); tcg_out_modrm(s, OPC_SETCC | jcc, 0, dest); if (!cleared) { |