diff options
| author | amonakov <amonakov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-11-22 10:35:06 +0000 |
|---|---|---|
| committer | amonakov <amonakov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-11-22 10:35:06 +0000 |
| commit | 0cfef6c5572d909b1b2fcd28df32132a8dba1e0a (patch) | |
| tree | e9e9c058158ad6ffd6c71ebc44e91416cfc12a90 /gcc/sel-sched.c | |
| parent | 8fda32621c0fa3d39858a5fabe8ca5d7a17ee385 (diff) | |
PR rtl-optimization/45652
* alias.c (get_reg_base_value): New.
* rtl.h (get_reg_base_value): Add prototype.
* sel-sched.c (init_regs_for_mode): Use it. Don't use registers with
non-null REG_BASE_VALUE for renaming.
testsuite:
* gcc.dg/pr45652.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167025 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sel-sched.c')
| -rw-r--r-- | gcc/sel-sched.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/sel-sched.c b/gcc/sel-sched.c index cb3c379524e..3b5603c7efa 100644 --- a/gcc/sel-sched.c +++ b/gcc/sel-sched.c @@ -1139,6 +1139,9 @@ init_regs_for_mode (enum machine_mode mode) /* Can't use regs which aren't saved by the prologue. */ || !TEST_HARD_REG_BIT (sel_hrd.regs_ever_used, cur_reg + i) + /* Can't use regs with non-null REG_BASE_VALUE, because adjusting + it affects aliasing globally and invalidates all AV sets. */ + || get_reg_base_value (cur_reg + i) #ifdef LEAF_REGISTERS /* We can't use a non-leaf register if we're in a leaf function. */ |