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| author | Jan Hubicka <jh@suse.cz> | 2011-01-22 22:47:40 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2011-01-22 21:47:40 +0000 |
| commit | e8ff8c5ab821ec0867687fb46cb8d012c0d5b325 (patch) | |
| tree | b5772c7378d64070137aeb9449a4d84467164354 /gcc | |
| parent | ccaed3ba91952bdc19aecce21d49714c5599ad2d (diff) | |
| download | gcc-e8ff8c5ab821ec0867687fb46cb8d012c0d5b325.zip gcc-e8ff8c5ab821ec0867687fb46cb8d012c0d5b325.tar.gz gcc-e8ff8c5ab821ec0867687fb46cb8d012c0d5b325.tar.bz2 | |
re PR target/43884 (Performance degradation for simple fibonacci numbers calculation)
PR tree-optimization/43884
PR lto/44334
* predict.c (maybe_hot_frequency_p): Use entry block frequency as an base.
* doc/invoke.texi (hot-bb-frequency-fraction): Update docs.
* gcc.dg/autopar/outer-2.c: Increase array size.
* gcc.dg/tree-ssa/ldist-pr45948.c: Update test.
From-SVN: r169136
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/predict.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/autopar/outer-2.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c | 2 |
5 files changed, 17 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8e15282..92f6d04 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-01-22 Jan Hubicka <jh@suse.cz> + + PR tree-optimization/43884 + PR lto/44334 + * predict.c (maybe_hot_frequency_p): Use entry block frequency as an base. + * doc/invoke.texi (hot-bb-frequency-fraction): Update docs. + 2011-01-22 Anatoly Sokolov <aesok@post.ru> * config/s390/s390.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove. diff --git a/gcc/predict.c b/gcc/predict.c index a86708a..dc1104f 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -126,7 +126,7 @@ maybe_hot_frequency_p (int freq) if (node->frequency == NODE_FREQUENCY_EXECUTED_ONCE && freq <= (ENTRY_BLOCK_PTR->frequency * 2 / 3)) return false; - if (freq < BB_FREQ_MAX / PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION)) + if (freq < ENTRY_BLOCK_PTR->frequency / PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION)) return false; return true; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ce423e1..841a1dd 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2011-01-22 Jan Hubicka <jh@suse.cz> + + PR tree-optimization/43884 + PR lto/44334 + * gcc.dg/autopar/outer-2.c: Increase array size. + * gcc.dg/tree-ssa/ldist-pr45948.c: Update test. + 2011-01-22 Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/38536 diff --git a/gcc/testsuite/gcc.dg/autopar/outer-2.c b/gcc/testsuite/gcc.dg/autopar/outer-2.c index 351b349..b2e5159 100644 --- a/gcc/testsuite/gcc.dg/autopar/outer-2.c +++ b/gcc/testsuite/gcc.dg/autopar/outer-2.c @@ -6,7 +6,7 @@ void abort (void); void parloop (int N) { int i, j,ii; - int x[400][10][400]; + int x[401][10][401]; for (ii = 0; ii < N; ii++) for (i = 0; i < N; i++) diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c b/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c index 3e467bd..f0d07cc 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c @@ -18,6 +18,6 @@ foo (int i, int n) /* We should apply loop distribution and generate 2 memset (0). */ -/* { dg-final { scan-tree-dump "distributed: split to 3" "ldist" } } */ +/* { dg-final { scan-tree-dump "distributed: split to 2" "ldist" } } */ /* { dg-final { scan-tree-dump-times "__builtin_memset" 4 "ldist" } } */ /* { dg-final { cleanup-tree-dump "ldist" } } */ |