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| author | Jakub Jelinek <jakub@redhat.com> | 2011-07-11 18:57:25 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-07-11 18:57:25 +0200 |
| commit | 96ae7458c01e0a23c71b7809a850493a89f3ebe3 (patch) | |
| tree | 755f987ded70868d77d0a6f6d647ab846363e287 /libjava/java/io/ObjectStreamException.h | |
| parent | 932ebb945fca9b847e2a8db42eb868191a1a56a9 (diff) | |
| download | gcc-96ae7458c01e0a23c71b7809a850493a89f3ebe3.zip gcc-96ae7458c01e0a23c71b7809a850493a89f3ebe3.tar.gz gcc-96ae7458c01e0a23c71b7809a850493a89f3ebe3.tar.bz2 | |
re PR debug/49676 (inefficiency: DW_AT_GNU_call_site_value calculates everything << 32)
PR debug/49676
* dwarf2out.c (int_shift_loc_descriptor): New function.
(int_loc_descriptor): If shorter, emit i as
(i >> shift), shift, DW_OP_shl for suitable shift value.
Similarly, try to optimize large negative values using
DW_OP_neg of a positive value if shorter.
(size_of_int_shift_loc_descriptor): New function.
(size_of_int_loc_descriptor): Adjust to match int_loc_descriptor
changes.
(mem_loc_descriptor) <case CONST_INT>: Emit zero-extended constants
that fit into DWARF2_ADDR_SIZE bytes as int_loc_descriptor +
DW_OP_GNU_convert instead of DW_OP_GNU_const_type if the former
is shorter.
(resolve_addr_in_expr): Optimize DW_OP_plus_uconst with a large
addend as added DW_OP_plus if it is shorter.
* gcc.dg/guality/csttest.c: New test.
From-SVN: r176167
Diffstat (limited to 'libjava/java/io/ObjectStreamException.h')
0 files changed, 0 insertions, 0 deletions