diff options
author | Richard Henderson <richard.henderson@linaro.org> | 2023-10-24 18:44:49 +0000 |
---|---|---|
committer | Richard Henderson <richard.henderson@linaro.org> | 2024-02-03 23:53:49 +0000 |
commit | 740f1d40e593e7be18f4eb355ba6b40b5c788923 (patch) | |
tree | 54b5122bf9d83d094fdbfab09843c22a098374b9 /tcg | |
parent | 2e7eafcc402b61ff2ffebfb90777efc37f4d4a1f (diff) |
tcg/ppc: Use cr0 in tcg_to_bc and tcg_to_isel
Using cr0 means we could choose to use rc=1 to compute the condition.
Adjust the tables and tcg_out_cmp that feeds them.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
-rw-r--r-- | tcg/ppc/tcg-target.c.inc | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 830d2fe73a..b9323baa86 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -671,30 +671,30 @@ enum { }; static const uint32_t tcg_to_bc[] = { - [TCG_COND_EQ] = BC | BI(7, CR_EQ) | BO_COND_TRUE, - [TCG_COND_NE] = BC | BI(7, CR_EQ) | BO_COND_FALSE, - [TCG_COND_LT] = BC | BI(7, CR_LT) | BO_COND_TRUE, - [TCG_COND_GE] = BC | BI(7, CR_LT) | BO_COND_FALSE, - [TCG_COND_LE] = BC | BI(7, CR_GT) | BO_COND_FALSE, - [TCG_COND_GT] = BC | BI(7, CR_GT) | BO_COND_TRUE, - [TCG_COND_LTU] = BC | BI(7, CR_LT) | BO_COND_TRUE, - [TCG_COND_GEU] = BC | BI(7, CR_LT) | BO_COND_FALSE, - [TCG_COND_LEU] = BC | BI(7, CR_GT) | BO_COND_FALSE, - [TCG_COND_GTU] = BC | BI(7, CR_GT) | BO_COND_TRUE, + [TCG_COND_EQ] = BC | BI(0, CR_EQ) | BO_COND_TRUE, + [TCG_COND_NE] = BC | BI(0, CR_EQ) | BO_COND_FALSE, + [TCG_COND_LT] = BC | BI(0, CR_LT) | BO_COND_TRUE, + [TCG_COND_GE] = BC | BI(0, CR_LT) | BO_COND_FALSE, + [TCG_COND_LE] = BC | BI(0, CR_GT) | BO_COND_FALSE, + [TCG_COND_GT] = BC | BI(0, CR_GT) | BO_COND_TRUE, + [TCG_COND_LTU] = BC | BI(0, CR_LT) | BO_COND_TRUE, + [TCG_COND_GEU] = BC | BI(0, CR_LT) | BO_COND_FALSE, + [TCG_COND_LEU] = BC | BI(0, CR_GT) | BO_COND_FALSE, + [TCG_COND_GTU] = BC | BI(0, CR_GT) | BO_COND_TRUE, }; /* The low bit here is set if the RA and RB fields must be inverted. */ static const uint32_t tcg_to_isel[] = { - [TCG_COND_EQ] = ISEL | BC_(7, CR_EQ), - [TCG_COND_NE] = ISEL | BC_(7, CR_EQ) | 1, - [TCG_COND_LT] = ISEL | BC_(7, CR_LT), - [TCG_COND_GE] = ISEL | BC_(7, CR_LT) | 1, - [TCG_COND_LE] = ISEL | BC_(7, CR_GT) | 1, - [TCG_COND_GT] = ISEL | BC_(7, CR_GT), - [TCG_COND_LTU] = ISEL | BC_(7, CR_LT), - [TCG_COND_GEU] = ISEL | BC_(7, CR_LT) | 1, - [TCG_COND_LEU] = ISEL | BC_(7, CR_GT) | 1, - [TCG_COND_GTU] = ISEL | BC_(7, CR_GT), + [TCG_COND_EQ] = ISEL | BC_(0, CR_EQ), + [TCG_COND_NE] = ISEL | BC_(0, CR_EQ) | 1, + [TCG_COND_LT] = ISEL | BC_(0, CR_LT), + [TCG_COND_GE] = ISEL | BC_(0, CR_LT) | 1, + [TCG_COND_LE] = ISEL | BC_(0, CR_GT) | 1, + [TCG_COND_GT] = ISEL | BC_(0, CR_GT), + [TCG_COND_LTU] = ISEL | BC_(0, CR_LT), + [TCG_COND_GEU] = ISEL | BC_(0, CR_LT) | 1, + [TCG_COND_LEU] = ISEL | BC_(0, CR_GT) | 1, + [TCG_COND_GTU] = ISEL | BC_(0, CR_GT), }; static bool patch_reloc(tcg_insn_unit *code_ptr, int type, @@ -1827,7 +1827,7 @@ static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond, if (have_isa_3_10) { tcg_insn_unit bi, opc; - tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); /* Re-use tcg_to_bc for BI and BO_COND_{TRUE,FALSE}. */ bi = tcg_to_bc[cond] & (0x1f << 16); @@ -1880,7 +1880,7 @@ static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond, if (have_isel) { int isel, tab; - tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); isel = tcg_to_isel[cond]; @@ -1966,7 +1966,7 @@ static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGArg arg1, TCGArg arg2, int const_arg2, TCGLabel *l, TCGType type) { - tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); + tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); tcg_out_bc_lab(s, cond, l); } @@ -1980,7 +1980,7 @@ static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond, return; } - tcg_out_cmp(s, cond, c1, c2, const_c2, 7, type); + tcg_out_cmp(s, cond, c1, c2, const_c2, 0, type); if (have_isel) { int isel = tcg_to_isel[cond]; @@ -2024,7 +2024,7 @@ static void tcg_out_cntxz(TCGContext *s, TCGType type, uint32_t opc, if (const_a2 && a2 == (type == TCG_TYPE_I32 ? 32 : 64)) { tcg_out32(s, opc | RA(a0) | RS(a1)); } else { - tcg_out_cmp(s, TCG_COND_EQ, a1, 0, 1, 7, type); + tcg_out_cmp(s, TCG_COND_EQ, a1, 0, 1, 0, type); /* Note that the only other valid constant for a2 is 0. */ if (have_isel) { tcg_out32(s, opc | RA(TCG_REG_R0) | RS(a1)); @@ -2079,7 +2079,7 @@ static void tcg_out_cmp2(TCGContext *s, const TCGArg *args, do_equality: tcg_out_cmp(s, cond, al, bl, blconst, 6, TCG_TYPE_I32); tcg_out_cmp(s, cond, ah, bh, bhconst, 7, TCG_TYPE_I32); - tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); + tcg_out32(s, op | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); break; case TCG_COND_LT: @@ -2097,8 +2097,8 @@ static void tcg_out_cmp2(TCGContext *s, const TCGArg *args, tcg_out_cmp(s, cond, ah, bh, bhconst, 6, TCG_TYPE_I32); tcg_out_cmp(s, cond2, al, bl, blconst, 7, TCG_TYPE_I32); - tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2)); - tcg_out32(s, CROR | BT(7, CR_EQ) | BA(6, bit1) | BB(7, CR_EQ)); + tcg_out32(s, op | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2)); + tcg_out32(s, CROR | BT(0, CR_EQ) | BA(6, bit1) | BB(0, CR_EQ)); break; default: @@ -2110,8 +2110,8 @@ static void tcg_out_setcond2(TCGContext *s, const TCGArg *args, const int *const_args) { tcg_out_cmp2(s, args + 1, const_args + 1); - tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7)); - tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, 31, 31, 31); + tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(0)); + tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, CR_EQ + 0*4 + 1, 31, 31); } static void tcg_out_brcond2(TCGContext *s, const TCGArg *args, @@ -2442,12 +2442,12 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_TMP2, 0, 6, TCG_TYPE_I32); - /* Combine comparisons into cr7. */ - tcg_out32(s, CRAND | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); + /* Combine comparisons into cr0. */ + tcg_out32(s, CRAND | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); } else { - /* Full comparison into cr7. */ + /* Full comparison into cr0. */ tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, - 0, 7, addr_type); + 0, 0, addr_type); } /* Load a pointer into the current opcode w/conditional branch-link. */ |