diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2020-11-26 02:16:17 +0100 |
|---|---|---|
| committer | Ilya Leoshkevich <iii@linux.ibm.com> | 2020-12-02 19:10:34 +0100 |
| commit | 9776b4653bc4f8b568ea49fea4a7d7460e58b68a (patch) | |
| tree | 1e8b52acac44cb703e3ac313aee0f255c0bcb810 /libbacktrace/dwarf.c | |
| parent | cf4425558359e7a6b0ba4d953b85384e1c686260 (diff) | |
| download | gcc-9776b4653bc4f8b568ea49fea4a7d7460e58b68a.zip gcc-9776b4653bc4f8b568ea49fea4a7d7460e58b68a.tar.gz gcc-9776b4653bc4f8b568ea49fea4a7d7460e58b68a.tar.bz2 | |
IBM Z: Use llihf and oilf to load large immediates into GPRs
Currently GCC loads large immediates into GPRs from the literal pool,
which is not as efficient as loading two halves with llihf and oilf.
gcc/ChangeLog:
2020-11-30 Ilya Leoshkevich <iii@linux.ibm.com>
* config/s390/s390-protos.h (s390_const_int_pool_entry_p): New
function.
* config/s390/s390.c (s390_const_int_pool_entry_p): New
function.
* config/s390/s390.md: Add define_peephole2 that produces llihf
and oilf.
gcc/testsuite/ChangeLog:
2020-11-30 Ilya Leoshkevich <iii@linux.ibm.com>
* gcc.target/s390/load-imm64-1.c: New test.
* gcc.target/s390/load-imm64-2.c: New test.
Diffstat (limited to 'libbacktrace/dwarf.c')
0 files changed, 0 insertions, 0 deletions