diff options
| author | Bernd Schmidt <bernds@codesourcery.com> | 2011-06-21 14:16:39 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2011-06-21 14:16:39 +0000 |
| commit | 3801c801f35ca5e0c52b437161141c251aa33daf (patch) | |
| tree | ee32816cbc97cc6b5823412e083d7944b01b96a7 /gcc/config/bfin/bfin.md | |
| parent | 95f5c7757f027c4c9afbb97a7a24be0cc9ad7841 (diff) | |
| download | gcc-3801c801f35ca5e0c52b437161141c251aa33daf.tar.gz | |
Makefile.in (lib2funcs): Add _clrsbsi2 and _clrsbdi2.
libgcc/
* Makefile.in (lib2funcs): Add _clrsbsi2 and _clrsbdi2.
* libgcc-std.ver.in (GCC_4.7.0): New section.
gcc/
* doc/extend.texi (__builtin_clrsb, __builtin_clrsbl,
__builtin_clrsbll): Document.
* doc/rtl.texi (clrsb): New entry.
* optabs.c (widen_leading): Renamed from widen_clz. New argument
UNOPTAB. All callers changed. Use UNOPTAB instead of clz_optab.
(expand_unop): Handle clrsb_optab.
(init_optabs): Initialize it.
* optabs.h (enum optab_index): New entry OTI_clrsb.
(clrsb_optab): Define.
* genopinit.c (optabs): Add an entry for it.
* builtins.c (expand_builtin): Handle clrsb builtin functions.
* builtins.def (BUILT_IN_CLRSB, BUILT_IN_CLRSBIMAX, BUILT_IN_CLRSBL,
BUILT_IN_CLRSBLL): New.
* rtl.def (CLRSB): New code.
* dwarf2out.c (mem_loc_descriptor): Handle it.
* simplify-rtx.c (simplify_const_unary_operation): Likewise.
Use op_mode rather than mode when optimizing ffs, clz, ctz, parity
and popcount.
* libgcc2.c (__clrsbSI2, __clrsbDI2): New functions.
* libgcc2.h (__clrsbSI2, __clrsbDI2): Define and declare.
(__ctzDI2): Move declaration.
* config/bfin/bfin.md (clrsbsi2): New expander.
(signbitssi2): Use the CLRSB rtx.
(clrsbhi2): Renamed from signbitshi2. Use the CLRSB rtx.
* config/bfin/bfin.c (bdesc_1arg): Changed accordingly.
gcc/testsuite/
* gcc.c-torture/excute/builtin-bitops-1.c (MAKE_FUNS): Make
my_clrsb test functions.
(main): Test clrsb.
* gcc.dg/builtin-protos-1.c (test_s, test_u, test_sl, test_ul,
test_sll, test_ull): Add clrsb tests.
* gcc.dg/torture/builtin-attr-1.c: Add tests for clrsb, clrsbl,
clrsbll.
From-SVN: r175261
Diffstat (limited to 'gcc/config/bfin/bfin.md')
| -rw-r--r-- | gcc/config/bfin/bfin.md | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/gcc/config/bfin/bfin.md b/gcc/config/bfin/bfin.md index 903c8bb076f..a96d1a7bda6 100644 --- a/gcc/config/bfin/bfin.md +++ b/gcc/config/bfin/bfin.md @@ -1461,12 +1461,19 @@ "%0 = ~%1;" [(set_attr "type" "alu0")]) +(define_expand "clrsbsi2" + [(set (match_dup 2) + (clrsb:HI (match_operand:SI 1 "register_operand" "d"))) + (set (match_operand:SI 0 "register_operand") + (zero_extend:SI (match_dup 2)))] + "" +{ + operands[2] = gen_reg_rtx (HImode); +}) + (define_insn "signbitssi2" [(set (match_operand:HI 0 "register_operand" "=d") - (if_then_else:HI - (lt (match_operand:SI 1 "register_operand" "d") (const_int 0)) - (clz:HI (not:SI (match_dup 1))) - (clz:HI (match_dup 1))))] + (clrsb:HI (match_operand:SI 1 "register_operand" "d")))] "" "%h0 = signbits %1%!" [(set_attr "type" "dsp32")]) @@ -1518,12 +1525,9 @@ "%0 = -%1 (V)%!" [(set_attr "type" "dsp32")]) -(define_insn "signbitshi2" +(define_insn "clrsbhi2" [(set (match_operand:HI 0 "register_operand" "=d") - (if_then_else:HI - (lt (match_operand:HI 1 "register_operand" "d") (const_int 0)) - (clz:HI (not:HI (match_dup 1))) - (clz:HI (match_dup 1))))] + (clrsb:HI (match_operand:HI 1 "register_operand" "d")))] "" "%h0 = signbits %h1%!" [(set_attr "type" "dsp32")]) |