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| author | Chung-Lin Tang <cltang@codesourcery.com> | 2014-06-16 09:58:34 +0000 |
|---|---|---|
| committer | Chung-Lin Tang <cltang@gcc.gnu.org> | 2014-06-16 09:58:34 +0000 |
| commit | debd8f30b92c8c2fd30b04770173db9b72d055f6 (patch) | |
| tree | 70be1e8b60ecb58a413009265fa099cb4d87d3b0 /gcc | |
| parent | 6192fa791f5410b3ad9936c13da9992fe59631c7 (diff) | |
| download | gcc-debd8f30b92c8c2fd30b04770173db9b72d055f6.zip gcc-debd8f30b92c8c2fd30b04770173db9b72d055f6.tar.gz gcc-debd8f30b92c8c2fd30b04770173db9b72d055f6.tar.bz2 | |
re PR middle-end/61430 (ICE in lra_create_copy)
2014-06-16 Chung-Lin Tang <cltang@codesourcery.com>
PR middle-end/61430
* lra-lives.c (process_bb_lives): Skip creating copy during
insn scan when src/dest has constrained to same regno.
From-SVN: r211701
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/lra-lives.c | 6 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index abb63ac..802f3d9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-06-16 Chung-Lin Tang <cltang@codesourcery.com> + + PR middle-end/61430 + * lra-lives.c (process_bb_lives): Skip creating copy during + insn scan when src/dest has constrained to same regno. + 2014-06-15 Jan Hubicka <hubicka@ucw.cz> * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Check again diff --git a/gcc/lra-lives.c b/gcc/lra-lives.c index 26ba0d2..1e7bb59 100644 --- a/gcc/lra-lives.c +++ b/gcc/lra-lives.c @@ -558,7 +558,11 @@ process_bb_lives (basic_block bb, int &curr_point) /* It might be 'inheritance pseudo <- reload pseudo'. */ || (src_regno >= lra_constraint_new_regno_start && ((int) REGNO (SET_DEST (set)) - >= lra_constraint_new_regno_start)))) + >= lra_constraint_new_regno_start) + /* Remember to skip special cases where src/dest regnos are + the same, e.g. insn SET pattern has matching constraints + like =r,0. */ + && src_regno != (int) REGNO (SET_DEST (set))))) { int hard_regno = -1, regno = -1; |