diff options
| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-28 01:53:24 +0000 |
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| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-28 01:53:24 +0000 |
| commit | a5af08d26ce1678e462f91bb3fb9336e30d02ca8 (patch) | |
| tree | 761665b37aeeeb5eb4e3f9b4770772ea49679cc0 /gcc/config/s390/s390.h | |
| parent | 24b0a129a158dc3987a676c625817b9b21e9d4e9 (diff) | |
| download | gcc-a5af08d26ce1678e462f91bb3fb9336e30d02ca8.tar.gz | |
2011-03-27 Vladimir Makarov <vmakarov@redhat.com>
PR bootstrap/48307
Revert the previous patch.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171589 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/s390/s390.h')
| -rw-r--r-- | gcc/config/s390/s390.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/config/s390/s390.h b/gcc/config/s390/s390.h index 8825ae224f4..c6ba4ff2453 100644 --- a/gcc/config/s390/s390.h +++ b/gcc/config/s390/s390.h @@ -468,6 +468,19 @@ enum reg_class { 0xffffffff, 0x0000003f }, /* ALL_REGS */ \ } +/* The following macro defines cover classes for Integrated Register + Allocator. Cover classes is a set of non-intersected register + classes covering all hard registers used for register allocation + purpose. Any move between two registers of a cover class should be + cheaper than load or store of the registers. The macro value is + array of register classes with LIM_REG_CLASSES used as the end + marker. */ + +#define IRA_COVER_CLASSES \ +{ \ + GENERAL_REGS, FP_REGS, CC_REGS, ACCESS_REGS, LIM_REG_CLASSES \ +} + /* In some case register allocation order is not enough for IRA to generate a good code. The following macro (if defined) increases cost of REGNO for a pseudo approximately by pseudo usage frequency |