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| author | Vladimir Makarov <vmakarov@redhat.com> | 2014-03-13 15:52:50 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2014-03-13 15:52:50 +0000 |
| commit | 7891065aa73da81e05d93711637c737fccd34678 (patch) | |
| tree | 24adb203ac298072383e9cf1d012de24b1016af4 /gcc/lra-constraints.c | |
| parent | 00c5acd39f33c335223428099d5427fad1557db9 (diff) | |
| download | gcc-7891065aa73da81e05d93711637c737fccd34678.zip gcc-7891065aa73da81e05d93711637c737fccd34678.tar.gz gcc-7891065aa73da81e05d93711637c737fccd34678.tar.bz2 | |
re PR rtl-optimization/57189 (Vector register is spilled for vector extract pattern)
2014-03-13 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/57189
* lra-constraints.c (process_alt_operands): Disfavor spilling
vector pseudos.
2014-03-13 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/57189
* gcc.target/i386/pr57189.c: New.
From-SVN: r208549
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index a38b555..288e24b 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -2302,9 +2302,20 @@ process_alt_operands (int only_alternative) if (lra_dump_file != NULL) fprintf (lra_dump_file, - " %d Spill pseudo in memory: reject+=3\n", + " %d Spill pseudo into memory: reject+=3\n", nop); reject += 3; + if (VECTOR_MODE_P (mode)) + { + /* Spilling vectors into memory is usually more + costly as they contain big values. */ + if (lra_dump_file != NULL) + fprintf + (lra_dump_file, + " %d Spill vector pseudo: reject+=2\n", + nop); + reject += 2; + } } #ifdef SECONDARY_MEMORY_NEEDED |