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| author | Jeff Law <law@redhat.com> | 2011-06-15 10:23:28 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2011-06-15 10:23:28 -0600 |
| commit | 2098e43871b59e4b5da754392df2af416e4e899d (patch) | |
| tree | 3b1416171706f88657f5e6d513ae9c2185cbfc7d /gcc/df-problems.c | |
| parent | 6beec6813aa23a06f56ba73b7fbfafe2e2662c26 (diff) | |
| download | gcc-2098e43871b59e4b5da754392df2af416e4e899d.zip gcc-2098e43871b59e4b5da754392df2af416e4e899d.tar.gz gcc-2098e43871b59e4b5da754392df2af416e4e899d.tar.bz2 | |
df-problems.c (df_lr_local_compute): Manually CSE PIC_OFFSET_TABLE_REGNUM.
* df-problems.c (df_lr_local_compute): Manually CSE
PIC_OFFSET_TABLE_REGNUM.
* df-scan.c (df_get_regular_block_artificial_uses): Likewise.
(df_get_entry_block_def_set, df_get_exit_block_use_set): Likewise.
From-SVN: r175081
Diffstat (limited to 'gcc/df-problems.c')
| -rw-r--r-- | gcc/df-problems.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/df-problems.c b/gcc/df-problems.c index e5b88e3..59bed8b 100644 --- a/gcc/df-problems.c +++ b/gcc/df-problems.c @@ -906,6 +906,7 @@ df_lr_local_compute (bitmap all_blocks ATTRIBUTE_UNUSED) blocks within infinite loops. */ if (!reload_completed) { + unsigned int pic_offset_table_regnum = PIC_OFFSET_TABLE_REGNUM; /* Any reference to any pseudo before reload is a potential reference of the frame pointer. */ bitmap_set_bit (&df->hardware_regs_used, FRAME_POINTER_REGNUM); @@ -919,9 +920,9 @@ df_lr_local_compute (bitmap all_blocks ATTRIBUTE_UNUSED) /* Any constant, or pseudo with constant equivalences, may require reloading from memory using the pic register. */ - if ((unsigned) PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM - && fixed_regs[PIC_OFFSET_TABLE_REGNUM]) - bitmap_set_bit (&df->hardware_regs_used, PIC_OFFSET_TABLE_REGNUM); + if (pic_offset_table_regnum != INVALID_REGNUM + && fixed_regs[pic_offset_table_regnum]) + bitmap_set_bit (&df->hardware_regs_used, pic_offset_table_regnum); } EXECUTE_IF_SET_IN_BITMAP (df_lr->out_of_date_transfer_functions, 0, bb_index, bi) |