llvm-6502/test/Transforms/LoopVectorize
Chandler Carruth 05d43d8b6f [vectorizer] Completely disable the block frequency guidance of the loop
vectorizer, placing it behind an off-by-default flag.

It turns out that block frequency isn't what we want at all, here or
elsewhere. This has been I think a nagging feeling for several of us
working with it, but Arnold has given some really nice simple examples
where the results are so comprehensively wrong that they aren't useful.

I'm planning to email the dev list with a summary of why its not really
useful and a couple of ideas about how to better structure these types
of heuristics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200294 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-28 09:10:41 +00:00
..
ARM ARM cost model: Unaligned vectorized double stores are expensive 2013-10-29 01:33:57 +00:00
X86 [vectorizer] Completely disable the block frequency guidance of the loop 2014-01-28 09:10:41 +00:00
XCore
12-12-11-if-conv.ll
2012-10-20-infloop.ll
2012-10-22-isconsec.ll
align.ll LoopVectorizer: Use abi alignment for accesses with no alignment 2013-11-15 23:09:33 +00:00
bsd_regex.ll
bzip_reverse_loops.ll
calloc.ll
cast-induction.ll
cpp-new-array.ll
dbg.value.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
debugloc.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
ee-crash.ll LoopVectorizer: Don't attempt to vectorize extractelement instructions 2013-10-25 20:40:15 +00:00
flags.ll
float-reduction.ll
funcall.ll
gcc-examples.ll
global_alias.ll InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors. 2014-01-19 15:24:22 +00:00
hoist-loads.ll
i8-induction.ll
if-conv-crash.ll
if-conversion-edgemasks.ll
if-conversion-nest.ll
if-conversion-reduction.ll
if-conversion.ll LoopVectorizer: Don't if-convert constant expressions that can trap 2013-12-17 01:11:01 +00:00
if-pred-stores.ll LoopVectorize: Support conditional stores by scalarizing 2014-01-28 01:01:53 +00:00
increment.ll Correct word hyphenations 2013-12-05 05:44:44 +00:00
induction_plus.ll LoopVectorizer: Perform redundancy elimination on induction variables 2013-11-01 22:18:19 +00:00
induction.ll Fix broken CHECK lines. 2014-01-11 21:06:00 +00:00
infiniteloop.ll
intrinsic.ll
lcssa-crash.ll
lifetime.ll
memdep.ll
metadata-unroll.ll
metadata-width.ll
minmax_reduction.ll Scalarize select vector arguments when extracted. 2013-11-04 20:36:06 +00:00
multi-use-reduction-bug.ll LoopVectorizer: A reduction that has multiple uses of the reduction value is not 2014-01-19 03:18:31 +00:00
multiple-address-spaces.ll
no_idiv_reduction.ll
no_int_induction.ll
no_outside_user.ll
nofloat.ll
non-const-n.ll
nsw-crash.ll
opt.ll opt: Mirror vectorization presets of clang 2013-12-03 16:33:06 +00:00
phi-hang.ll
ptr_loops.ll
read-only.ll
reduction.ll LoopVectorize: External uses must use the last value in a reduction cycle 2013-10-07 21:05:43 +00:00
reverse_induction.ll
reverse_iter.ll
runtime-check-address-space.ll
runtime-check-readonly-address-space.ll
runtime-check-readonly.ll LoopVectorizer: Handle strided memory accesses by versioning 2014-01-10 18:20:32 +00:00
runtime-check.ll LoopVectorizer: If dependency checks fail try runtime checks 2013-11-01 03:05:07 +00:00
runtime-limit.ll
safegep.ll
same-base-access.ll
scalar-select.ll
scev-exitlim-crash.ll
simple-unroll.ll
small-loop.ll
start-non-zero.ll
store-shuffle-bug.ll
struct_access.ll LoopVectorize: Look for consecutive acces in GEPs with trailing zero indices 2013-11-01 14:09:50 +00:00
undef-inst-bug.ll
unroll_novec.ll [vectorizer] Add an override for the target instruction cost and use it 2014-01-27 11:41:50 +00:00
value-ptr-bug.ll Fix known typos 2014-01-24 17:20:08 +00:00
vectorize-once.ll Mark vector loops as already vectorized 2013-10-24 14:50:51 +00:00
version-mem-access.ll LoopVectorize: Only strip casts from integer types when replacing symbolic 2014-01-15 03:35:46 +00:00
write-only.ll