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| author | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2007-01-03 02:29:00 +0000 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2007-01-03 02:29:00 +0000 |
| commit | 03cb2019ff14e03b2256bc6dca8a1bd3ec2bede9 (patch) | |
| tree | 65c401413cfba6d2049e2a002755074729d4e079 /gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c | |
| parent | 7a388ee4530a1924bd3e0100078e5179bf5ee18c (diff) | |
| download | gcc-03cb2019ff14e03b2256bc6dca8a1bd3ec2bede9.zip gcc-03cb2019ff14e03b2256bc6dca8a1bd3ec2bede9.tar.gz gcc-03cb2019ff14e03b2256bc6dca8a1bd3ec2bede9.tar.bz2 | |
loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
* loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
* tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
to loop_version.
* cfgloopmanip.c (scale_loop_frequencies): Export.
(loopify): Scale the frequencies by prescribed coefficients.
(set_zero_probability): New function.
(duplicate_loop_to_header_edge): Improve updating of frequencies.
(lv_adjust_loop_entry_edge, loop_version): Set probabilities
and frequencies according to arguments.
* tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
correctly.
* cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
* modulo-sched.c (sms_schedule): Set probabilities for entering
versioned loop correctly.
* tree-vect-transform.c (vect_transform_loop): Ditto.
* cfgloop.h (loopify, loop_version): Declaration changed.
(scale_loop_frequencies): Declared.
* gcc.dg/tree-ssa/update-unroll-1.c: New test.
* gcc.dg/tree-ssa/update-unswitch-1.c: New test.
From-SVN: r120378
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c b/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c new file mode 100644 index 0000000..d911dd8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/update-unroll-1.c @@ -0,0 +1,22 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-require-effective-target ilp32 } */ +/* { dg-options "-O1 -fprefetch-loop-arrays -march=athlon -fdump-tree-aprefetch-blocks" } */ + +int a[10000]; + +int foo(unsigned n) +{ + unsigned i, s = 0; + + for (i = 0; i < n; i++) + s += a[i]; + + return s; +} + +/* We used to make the probability that the body of the loop (unrolled + to enable prefetching) is entered 0, which is not correct. */ + +/* { dg-final { scan-tree-dump-not "Invalid sum" "aprefetch"} } */ +/* { dg-final { scan-tree-dump-not "SUCC: 7 .100.0%" "aprefetch"} } */ +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ |