2012-10-24 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/55055
* lra-spills.c (alter_subregs): New function.
(lra_hard_reg_substitution): Use it.
From-SVN: r192779
2012-10-24 Janus Weil <janus@gcc.gnu.org>
PR fortran/55037
* trans-expr.c (gfc_conv_procedure_call): Move a piece of code and
remove an assert.
2012-10-24 Janus Weil <janus@gcc.gnu.org>
PR fortran/55037
* gfortran.dg/class_dummy_4.f03: New.
From-SVN: r192768
PR rtl-optimization/55010
* cse.c (fold_rtx) <RTX_COMPARE>: Call copy_rtx on folded_arg{0,1}
before passing it to simplify_relational_operation.
* gcc.dg/pr55010.c: New test.
From-SVN: r192760
PR debug/54828
* gimple.h (is_gimple_sizepos): New inline function.
* gimplify.c (gimplify_one_sizepos): Use it. Remove useless
final assignment to expr variable.
* tree.c (RETURN_TRUE_IF_VAR): Return true also if
!TYPE_SIZES_GIMPLIFIED (type) and _t is going to be gimplified
into a local temporary.
* g++.dg/debug/pr54828.C: New test.
From-SVN: r192759
* config/sparc/constraints.md ("T", "W"): Change
definitions to use define_memory_constraint. Do not match
'reg'.
* config/sparc/sparc.c (memory_ok_for_ldd): Remove all non-MEM
handling code, update comment.
From-SVN: r192757
PR tree-optimization/54985
* tree-ssa-threadedge.c (cond_arg_set_in_bb): New function
* extracted
from thread_across_edge.
(thread_across_edge): Use it in all cases where we might thread
across a back edge.
* gcc.c-torture/execute/pr54985.c: New test.
From-SVN: r192745
gcc/
* expmed.c (store_split_bit_field): Update the calls to
extract_fixed_bit_field. In the big-endian case, always
use the mode of OP0 to count the number of significant bits.
(extract_bit_field_1): Remove unit, offset, bitpos and
byte_offset from the outermost scope. Express conditions in terms
of bitnum rather than offset, bitpos and byte_offset. Move the
computation of MODE1 to the block that needs it. Use MODE unless
the TMODE-based mode_for_size calculation succeeds. Split the
plain move cases into two, one for memory accesses and one for
register accesses. Generalize the memory case, freeing it from
the old register-based endian checks. Move the INT_MODE calculation
above the code that needs it. Use simplify_gen_subreg to handle
multiword OP0s. If the field still spans several words, pass it
directly to extract_split_bit_field. Assume after that point
that both targets and register sources fit within a word.
Replace x-prefixed variables with non-prefixed forms.
Compute the bitpos for ext(z)v register operands directly in the
chosen unit size, rather than going through an intermediate
BITS_PER_WORD unit size. Simplify the containment check
used when forcing OP0 into a register. Update the call to
extract_fixed_bit_field.
(extract_fixed_bit_field): Replace the bitpos and offset parameters
with a single bitnum parameter, of the same form as extract_bit_field.
Assume that OP0 contains the full field. Simplify the memory offset
calculation and containment check for volatile bitfields. Make the
offset explicit when volatile bitfields force a misaligned access.
Remove WARNED and fix long lines. Assert that the processed OP0
has an integral mode.
(store_split_bit_field): Update the call to store_fixed_bit_field.
From-SVN: r192741
gcc/
* expmed.c (lowpart_bit_field_p): New function.
(store_bit_field_1): Remove unit, offset, bitpos and byte_offset
from the outermost scope. Express conditions in terms of bitnum
rather than offset, bitpos and byte_offset. Split the plain move
cases into two, one for memory accesses and one for register accesses.
Allow simplify_gen_subreg to fail rather than calling validate_subreg.
Move the handling of multiword OP0s after the code that coerces VALUE
to an integer mode. Use simplify_gen_subreg for this case and assert
that it succeeds. If the field still spans several words, pass it
directly to store_split_bit_field. Assume after that point that
both sources and register targets fit within a word. Replace
x-prefixed variables with non-prefixed forms. Compute the bitpos
for insv register operands directly in the chosen unit size, rather
than going through an intermediate BITS_PER_WORD unit size.
Update the call to store_fixed_bit_field.
(store_fixed_bit_field): Replace the bitpos and offset parameters
with a single bitnum parameter, of the same form as store_bit_field.
Assume that OP0 contains the full field. Simplify the memory offset
calculation. Assert that the processed OP0 has an integral mode.
(store_split_bit_field): Update the call to store_fixed_bit_field.
From-SVN: r192740
PR debug/54508
* dwarf2out.c (prune_unused_types_prune): If pruning a class and
not all its children were marked, add DW_AT_declaration flag.
* g++.dg/debug/dwarf2/pr54508.C: New.
From-SVN: r192739
