| commit | 348eea5f00fe47fa13c235e9e93c082b8b285f97 | |
| author | Richard Sandiford <rsandifo@nildram.co.uk> | |
| Sun, 16 Sep 2007 21:02:54 +0000 (16 21:02 +0000) | ||
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | |
| Sun, 16 Sep 2007 21:02:54 +0000 (16 21:02 +0000) | ||
| tree | 24f70bdc3e262c76611c228272c31e27b2f21f85 | treesnapshot (tar.gz zip) |
| parent | 0ee3f0a892918371a5245de973480bc443126558 | commitdiff |
dse.c (find_shift_sequence): Allow word as well as subword shifts.
gcc/
* dse.c (find_shift_sequence): Allow word as well as subword shifts.
Do the tentative shift expansion with the DF_NO_INSN_RESCAN flag set.
Fix the call to insn_rtx_cost. Skip access sizes that require a
real truncation of the store register. Use convert_move instead
of gen_lowpart when narrowing the result.
(replace_read): Use convert_move instead of gen_lowpart when
narrowing the store rhs.
gcc/testsuite/
* gcc.target/mips/dse-1.c: New test.
From-SVN: r128530
gcc/
* dse.c (find_shift_sequence): Allow word as well as subword shifts.
Do the tentative shift expansion with the DF_NO_INSN_RESCAN flag set.
Fix the call to insn_rtx_cost. Skip access sizes that require a
real truncation of the store register. Use convert_move instead
of gen_lowpart when narrowing the result.
(replace_read): Use convert_move instead of gen_lowpart when
narrowing the store rhs.
gcc/testsuite/
* gcc.target/mips/dse-1.c: New test.
From-SVN: r128530
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/dse.c | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.target/mips/dse-1.c | [new file with mode: 0644] | blob |