diff options
| author | Richard Biener <rguenther@suse.de> | 2013-05-03 11:09:59 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-05-03 11:09:59 +0000 |
| commit | 07bfc9ece12554016cf8c39b17301ab94df6f176 (patch) | |
| tree | 7d533f06f94bafb5dd09f062d0ef17a1ab83a989 /gcc/expr.c | |
| parent | 7769bb64f35fea465d47288bcc8dae542257162f (diff) | |
| download | gcc-07bfc9ece12554016cf8c39b17301ab94df6f176.zip gcc-07bfc9ece12554016cf8c39b17301ab94df6f176.tar.gz gcc-07bfc9ece12554016cf8c39b17301ab94df6f176.tar.bz2 | |
double-int.h (lshift): New overload without precision and arith argument.
2013-05-03 Richard Biener <rguenther@suse.de>
* double-int.h (lshift): New overload without precision
and arith argument.
(operator *=, operator +=, operator -=): Move ...
* double-int.c (operator *=, operator +=, operator -=): ... here
and implement more efficiently.
(mul_double_with_sign): Remove.
(lshift_double): Adjust to take unsinged shift argument, push
dispatching code to callers.
(mul_double_wide_with_sign): Add early out for callers that
are not interested in high parts or overflow.
(lshift): New function.
(lshift, rshift, alshift, arshift, llshift, lrshift): Add
dispatch code here.
(lrotate, rrotate): Use logical shifts.
* expr.c (get_inner_reference): Use lshift.
* fixed-value.c (do_fixed_divide): Likewise.
* tree-dfa.c (get_ref_base_and_extent): Likewise.
* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise.
(indirect_refs_may_alias_p): Likewise.
(stmt_kills_ref_p_1): Likewise.
From-SVN: r198576
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 8 |
1 files changed, 3 insertions, 5 deletions
@@ -6704,9 +6704,8 @@ get_inner_reference (tree exp, HOST_WIDE_INT *pbitsize, if (!integer_zerop (off)) { double_int boff, coff = mem_ref_offset (exp); - boff = coff.alshift (BITS_PER_UNIT == 8 - ? 3 : exact_log2 (BITS_PER_UNIT), - HOST_BITS_PER_DOUBLE_INT); + boff = coff.lshift (BITS_PER_UNIT == 8 + ? 3 : exact_log2 (BITS_PER_UNIT)); bit_offset += boff; } exp = TREE_OPERAND (TREE_OPERAND (exp, 0), 0); @@ -6732,8 +6731,7 @@ get_inner_reference (tree exp, HOST_WIDE_INT *pbitsize, { double_int tem = tree_to_double_int (offset); tem = tem.sext (TYPE_PRECISION (sizetype)); - tem = tem.alshift (BITS_PER_UNIT == 8 ? 3 : exact_log2 (BITS_PER_UNIT), - HOST_BITS_PER_DOUBLE_INT); + tem = tem.lshift (BITS_PER_UNIT == 8 ? 3 : exact_log2 (BITS_PER_UNIT)); tem += bit_offset; if (tem.fits_shwi ()) { |