diff options
| author | Vladimir Makarov <vmakarov@redhat.com> | 2018-02-22 21:17:51 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2018-02-22 21:17:51 +0000 |
| commit | 7874b7c5b59923d8a56eaf41f7518c71b910355e (patch) | |
| tree | 7268aa9b5a8752e1ace59914f5238e43daa7a182 /gcc/lra-eliminations.c | |
| parent | b613cc2e9120ea002f8a0855d2620ee4ba8fbfe5 (diff) | |
| download | gcc-7874b7c5b59923d8a56eaf41f7518c71b910355e.zip gcc-7874b7c5b59923d8a56eaf41f7518c71b910355e.tar.gz gcc-7874b7c5b59923d8a56eaf41f7518c71b910355e.tar.bz2 | |
re PR target/81572 (gcc-7 regression: unnecessary vector regmove on compare)
2018-02-22 Vladimir Makarov <vmakarov@redhat.com>
PR target/81572
* lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
* lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
LRA_UNKNOWN_ALT.
* lra-constraints.c (curr_insn_transform): Set up
LRA_NON_CLOBBERED_ALT for moves processed on the fast path. Use
LRA_UNKNOWN_ALT.
(remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
* lra-eliminations.c (spill_pseudos): Ditto.
(process_insn_for_elimination): Ditto.
* lra-lives.c (reg_early_clobber_p): Use the new macros.
* lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
LRA_NON_CLOBBERED_ALT.
2018-02-22 Vladimir Makarov <vmakarov@redhat.com>
PR target/81572
* gcc.target/powerpc/pr81572.c: New.
From-SVN: r257915
Diffstat (limited to 'gcc/lra-eliminations.c')
| -rw-r--r-- | gcc/lra-eliminations.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/lra-eliminations.c b/gcc/lra-eliminations.c index 44ad96a..21d8d5f 100644 --- a/gcc/lra-eliminations.c +++ b/gcc/lra-eliminations.c @@ -1175,7 +1175,7 @@ spill_pseudos (HARD_REG_SET set) if (bitmap_bit_p (&to_process, INSN_UID (insn))) { lra_push_insn (insn); - lra_set_used_insn_alternative (insn, -1); + lra_set_used_insn_alternative (insn, LRA_UNKNOWN_ALT); } bitmap_clear (&to_process); } @@ -1408,7 +1408,7 @@ process_insn_for_elimination (rtx_insn *insn, bool final_p, bool first_p) } lra_update_insn_regno_info (insn); lra_push_insn (insn); - lra_set_used_insn_alternative (insn, -1); + lra_set_used_insn_alternative (insn, LRA_UNKNOWN_ALT); } } |