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author | Richard Henderson <rth@redhat.com> | 2011-03-24 17:52:40 -0700 |
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committer | Richard Henderson <rth@gcc.gnu.org> | 2011-03-24 17:52:40 -0700 |
commit | e533b2a4c9ce8ee4fd207728dba3a9e2ffc5374a (patch) | |
tree | 59dbfdc6212c7805c5fd719c4d6198af92e69d13 | |
parent | 0b2a73678bb58b1c91ae7ee93e3ddfff1830baf8 (diff) | |
download | gcc-e533b2a4c9ce8ee4fd207728dba3a9e2ffc5374a.zip gcc-e533b2a4c9ce8ee4fd207728dba3a9e2ffc5374a.tar.gz gcc-e533b2a4c9ce8ee4fd207728dba3a9e2ffc5374a.tar.bz2 |
alpha: Use byte-manipulation helper expanders more often.
From-SVN: r171439
-rw-r--r-- | gcc/ChangeLog | 8 | ||||
-rw-r--r-- | gcc/config/alpha/alpha.c | 48 |
2 files changed, 34 insertions, 22 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2618788..0ba4304 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,13 @@ 2011-02-24 Richard Henderson <rth@redhat.com> + * config/alpha/alpha.c (alpha_expand_unaligned_load): Use extql. + (alpha_expand_unaligned_store): Use mskwl, mskll, mskql. + (alpha_expand_unaligned_load_words): Use extql. + (alpha_expand_unaligned_store_words): Use insqh, mskqh, mskql. + (emit_insxl): Handle all modes for consistency. + +2011-02-24 Richard Henderson <rth@redhat.com> + * config/alpha/alpha.c (get_aligned_mem): Don't test WORDS_BIG_ENDIAN. (alpha_expand_unaligned_load): Likewise. (alpha_expand_unaligned_store): Likewise. diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 4885be6..c55587b 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -3347,7 +3347,7 @@ alpha_expand_unaligned_load (rtx tgt, rtx mem, HOST_WIDE_INT size, { emit_move_insn (addr, plus_constant (mema, ofs+2)); - emit_insn (gen_extxl (extl, meml, GEN_INT (64), addr)); + emit_insn (gen_extql (extl, meml, addr)); emit_insn (gen_extqh (exth, memh, addr)); /* We must use tgt here for the target. Alpha-vms port fails if we use @@ -3367,17 +3367,14 @@ alpha_expand_unaligned_load (rtx tgt, rtx mem, HOST_WIDE_INT size, emit_insn (gen_extwh (exth, memh, addr)); mode = HImode; break; - case 4: emit_insn (gen_extlh (exth, memh, addr)); mode = SImode; break; - case 8: emit_insn (gen_extqh (exth, memh, addr)); mode = DImode; break; - default: gcc_unreachable (); } @@ -3475,16 +3472,13 @@ alpha_expand_unaligned_store (rtx dst, rtx src, switch ((int) size) { case 2: - emit_insn (gen_mskxl (dstl, dstl, GEN_INT (0xffff), addr)); + emit_insn (gen_mskwl (dstl, dstl, addr)); break; case 4: - { - rtx msk = immed_double_const (0xffffffff, 0, DImode); - emit_insn (gen_mskxl (dstl, dstl, msk, addr)); - break; - } + emit_insn (gen_mskll (dstl, dstl, addr)); + break; case 8: - emit_insn (gen_mskxl (dstl, dstl, constm1_rtx, addr)); + emit_insn (gen_mskql (dstl, dstl, addr)); break; default: gcc_unreachable (); @@ -3516,7 +3510,6 @@ alpha_expand_unaligned_load_words (rtx *out_regs, rtx smem, HOST_WIDE_INT words, HOST_WIDE_INT ofs) { rtx const im8 = GEN_INT (-8); - rtx const i64 = GEN_INT (64); rtx ext_tmps[MAX_MOVE_WORDS], data_regs[MAX_MOVE_WORDS+1]; rtx sreg, areg, tmp, smema; HOST_WIDE_INT i; @@ -3563,7 +3556,7 @@ alpha_expand_unaligned_load_words (rtx *out_regs, rtx smem, 1, OPTAB_WIDEN); for (i = 0; i < words; ++i) { - emit_insn (gen_extxl (data_regs[i], data_regs[i], i64, sreg)); + emit_insn (gen_extql (data_regs[i], data_regs[i], sreg)); emit_insn (gen_extqh (ext_tmps[i], data_regs[i+1], sreg)); emit_insn (gen_rtx_SET (VOIDmode, ext_tmps[i], gen_rtx_IF_THEN_ELSE (DImode, @@ -3588,7 +3581,6 @@ alpha_expand_unaligned_store_words (rtx *data_regs, rtx dmem, HOST_WIDE_INT words, HOST_WIDE_INT ofs) { rtx const im8 = GEN_INT (-8); - rtx const i64 = GEN_INT (64); rtx ins_tmps[MAX_MOVE_WORDS]; rtx st_tmp_1, st_tmp_2, dreg; rtx st_addr_1, st_addr_2, dmema; @@ -3628,7 +3620,7 @@ alpha_expand_unaligned_store_words (rtx *data_regs, rtx dmem, { for (i = words-1; i >= 0; --i) { - emit_insn (gen_insxh (ins_tmps[i], data_regs[i], i64, dreg)); + emit_insn (gen_insqh (ins_tmps[i], data_regs[i], dreg)); emit_insn (gen_insql (data_regs[i], data_regs[i], dreg)); } for (i = words-1; i > 0; --i) @@ -3640,8 +3632,8 @@ alpha_expand_unaligned_store_words (rtx *data_regs, rtx dmem, } /* Split and merge the ends with the destination data. */ - emit_insn (gen_mskxh (st_tmp_2, st_tmp_2, i64, dreg)); - emit_insn (gen_mskxl (st_tmp_1, st_tmp_1, constm1_rtx, dreg)); + emit_insn (gen_mskqh (st_tmp_2, st_tmp_2, dreg)); + emit_insn (gen_mskql (st_tmp_1, st_tmp_1, dreg)); if (data_regs != NULL) { @@ -4311,12 +4303,24 @@ emit_insxl (enum machine_mode mode, rtx op1, rtx op2) rtx ret = gen_reg_rtx (DImode); rtx (*fn) (rtx, rtx, rtx); - if (mode == QImode) - fn = gen_insbl; - else - fn = gen_inswl; + switch (mode) + { + case QImode: + fn = gen_insbl; + break; + case HImode: + fn = gen_inswl; + break; + case SImode: + fn = gen_insll; + break; + case DImode: + fn = gen_insql; + break; + default: + gcc_unreachable (); + } - /* The insbl and inswl patterns require a register operand. */ op1 = force_reg (mode, op1); emit_insn (fn (ret, op1, op2)); |