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| author | segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-08-15 16:17:21 +0000 |
|---|---|---|
| committer | segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-08-15 16:17:21 +0000 |
| commit | 532322d3883478c66425443314d5dbe764497a16 (patch) | |
| tree | 52262637556ee25a677df422ac164d71edacb802 /libmpx/aclocal.m4 | |
| parent | 4e2d3fab6dbb00bce42a2acfb1db50b6b9215f3b (diff) | |
| download | gcc-532322d3883478c66425443314d5dbe764497a16.tar.gz | |
lra: A multiple_sets is not a simple_move_p (PR73650)
In the PR we have a PARALLEL of a move and a compare (a "mr." instruction).
The compare is dead, so single_set on it returns just the move. Then,
simple_move_p returns true; but the instruction does need reloads in this
case. This patch solves this by making simple_move_p return false for
every multiple_sets instruction.
PR rtl-optimization/73650
* lra-constraints.c (simple_move_p): If the insn is multiple_sets
it is not a simple move.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239483 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libmpx/aclocal.m4')
0 files changed, 0 insertions, 0 deletions