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| author | Kaz Kojima <kkojima@gcc.gnu.org> | 2009-05-31 21:48:01 +0000 |
|---|---|---|
| committer | Kaz Kojima <kkojima@gcc.gnu.org> | 2009-05-31 21:48:01 +0000 |
| commit | ed7910bb1513a00096fa7215bc3affd186eb7e9e (patch) | |
| tree | 41a7964f44c8250d6c439bf45951180785a6272e /gcc | |
| parent | 47ea8d4efa88226be530ca940c714cd40915abec (diff) | |
| download | gcc-ed7910bb1513a00096fa7215bc3affd186eb7e9e.zip gcc-ed7910bb1513a00096fa7215bc3affd186eb7e9e.tar.gz gcc-ed7910bb1513a00096fa7215bc3affd186eb7e9e.tar.bz2 | |
sh.md (ashldi3_std): New define_expand.
* config/sh/sh.md (ashldi3_std): New define_expand.
(ashldi3): Use it.
From-SVN: r148018
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/sh.md | 43 |
2 files changed, 46 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9305d0c..800f69d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2009-05-31 Kaz Kojima <kkojima@gcc.gnu.org> + * config/sh/sh.md (ashldi3_std): New define_expand. + (ashldi3): Use it. + +2009-05-31 Kaz Kojima <kkojima@gcc.gnu.org> + PR target/40313 * config/sh/sh.c: Include debug.h. (sh_expand_epilogue): Emit a blockage insn before the frame diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index 54e7e30..30022d6 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -3850,6 +3850,34 @@ label: [(set_attr "length" "4") (set_attr "type" "arith")]) +;; Expander for DImode shift left with SImode operations. + +(define_expand "ashldi3_std" + [(set (match_operand:DI 0 "arith_reg_dest" "=r") + (ashift:DI (match_operand:DI 1 "arith_reg_operand" "r") + (match_operand:DI 2 "const_int_operand" "n")))] + "TARGET_SH1 && INTVAL (operands[2]) < 32" + " +{ + int low_word = (TARGET_LITTLE_ENDIAN ? 0 : 1); + int high_word = (TARGET_LITTLE_ENDIAN ? 1 : 0); + rtx low_src = operand_subword (operands[1], low_word, 0, DImode); + rtx high_src = operand_subword (operands[1], high_word, 0, DImode); + rtx dst = gen_reg_rtx (DImode); + rtx low_dst = operand_subword (dst, low_word, 1, DImode); + rtx high_dst = operand_subword (dst, high_word, 1, DImode); + rtx tmp0, tmp1; + + tmp0 = gen_reg_rtx (SImode); + tmp1 = gen_reg_rtx (SImode); + emit_insn (gen_lshrsi3 (tmp0, low_src, GEN_INT (32 - INTVAL (operands[2])))); + emit_insn (gen_ashlsi3 (low_dst, low_src, operands[2])); + emit_insn (gen_ashlsi3 (tmp1, high_src, operands[2])); + emit_insn (gen_iorsi3 (high_dst, tmp0, tmp1)); + emit_move_insn (operands[0], dst); + DONE; +}") + (define_insn "ashldi3_media" [(set (match_operand:DI 0 "arith_reg_dest" "=r,r") (ashift:DI (match_operand:DI 1 "arith_reg_operand" "r,r") @@ -3882,8 +3910,19 @@ label: emit_insn (gen_ashldi3_media (operands[0], operands[1], operands[2])); DONE; } - if (GET_CODE (operands[2]) != CONST_INT - || INTVAL (operands[2]) != 1) + if (GET_CODE (operands[2]) == CONST_INT + && INTVAL (operands[2]) == 1) + { + emit_insn (gen_ashldi3_k (operands[0], operands[1])); + DONE; + } + else if (GET_CODE (operands[2]) == CONST_INT + && INTVAL (operands[2]) < 32) + { + emit_insn (gen_ashldi3_std (operands[0], operands[1], operands[2])); + DONE; + } + else FAIL; }") |