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a75059ebaa
llvm-mirror/test/Transforms/LoopVectorize
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Dehao Chen a75059ebaa Encode duplication factor from loop vectorization and loop unrolling to discriminator. 
Summary:
This patch starts the implementation as discuss in the following RFC: http://lists.llvm.org/pipermail/llvm-dev/2016-October/106532.html

When optimization duplicates code that will scale down the execution count of a basic block, we will record the duplication factor as part of discriminator so that the offline process tool can find the duplication factor and collect the accurate execution frequency of the corresponding source code. Two important optimization that fall into this category is loop vectorization and loop unroll. This patch records the duplication factor for these 2 optimizations.

The recording will be guarded by a flag encode-duplication-in-discriminators, which is off by default.

Reviewers: probinson, aprantl, davidxl, hfinkel, echristo

Reviewed By: hfinkel

Subscribers: mehdi_amini, anemet, mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D26420

llvm-svn: 294782
2017-02-10 21:09:07 +00:00
..
AArch64 [Loop Vectorizer] Cost-based decision for vectorization form of memory instruction. 2017-02-08 19:25:23 +00:00
ARM [LV] Add new ARM/AArch64 interleaved access cost model tests (NFC) 2017-02-07 19:34:24 +00:00
PowerPC [ppc] Correctly compute the cost of loading 32/64 bit memory into VSR 2016-12-03 00:41:43 +00:00
X86 [Loop Vectorizer] Cost-based decision for vectorization form of memory instruction. 2017-02-08 19:25:23 +00:00
XCore
12-12-11-if-conv.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
2012-10-20-infloop.ll
2012-10-22-isconsec.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
2016-07-27-loop-vec.ll Fix the assertion error in collectLoopUniforms caused by empty Worklist before expanding. 2016-07-27 23:53:58 +00:00
align.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
bsd_regex.ll
bzip_reverse_loops.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
calloc.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
cast-induction.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
conditional-assignment.ll Reapply "[LV] Enable vectorization of loops with conditional stores by default" 2016-12-16 19:12:02 +00:00
consec_no_gep.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
consecutive-ptr-uniforms.ll Reapply "[LV] Enable vectorization of loops with conditional stores by default" 2016-12-16 19:12:02 +00:00
control-flow.ll [LV] Stop saying "use -Rpass-analysis=loop-vectorize" 2016-11-11 22:51:46 +00:00
cpp-new-array.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
dbg.value.ll Renumber testcase metadata nodes after r290153. 2016-12-22 00:45:21 +00:00
dead_instructions.ll [LV] Avoid emitting trivially dead instructions 2016-10-19 19:22:02 +00:00
debugloc.ll Update vectorization debug info unittest. 2016-11-09 22:25:19 +00:00
diag-missing-instr-debug-loc.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
diag-with-hotness-info-2.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
diag-with-hotness-info.ll [LoopVersioning] Require loop-simplify form for loop versioning. 2016-12-19 17:13:37 +00:00
discriminator.ll Encode duplication factor from loop vectorization and loop unrolling to discriminator. 2017-02-10 21:09:07 +00:00
duplicated-metadata.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
ee-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
exact.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
flags.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
float-induction.ll [Loop Vectorizer] Handling loops FP induction variables. 2016-07-24 07:24:54 +00:00
float-reduction.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
funcall.ll
gcc-examples.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
gep_with_bitcast.ll [LV] Don't widen trivial induction variables 2016-07-06 14:26:59 +00:00
global_alias.ll [LV] Scalarize instructions marked scalar after vectorization 2016-09-26 17:08:37 +00:00
hints-trans.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
hoist-loads.ll
i8-induction.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
icmp-uniforms.ll [LV] Don't mark multi-use branch conditions uniform 2016-10-07 15:20:13 +00:00
if-conv-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
if-conversion-edgemasks.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
if-conversion-nest.ll
if-conversion-reduction.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
if-conversion.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
if-pred-non-void.ll [LV] Scalarize operands of predicated instructions 2016-12-07 15:03:32 +00:00
if-pred-not-when-safe.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
if-pred-stores.ll Reapply "[LV] Enable vectorization of loops with conditional stores by default" 2016-12-16 19:12:02 +00:00
incorrect-dom-info.ll
increment.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
induction_plus.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
induction-step.ll [LoopVectorize] Handling induction variable with non-constant step. 2016-05-10 07:33:35 +00:00
induction.ll [LV] Remove type restriction for vector phi creation 2017-02-10 16:15:26 +00:00
infiniteloop.ll
interleaved-accesses-1.ll Second attempt at r285517. 2016-10-31 13:17:31 +00:00
interleaved-accesses-2.ll Second attempt at r285517. 2016-10-31 13:17:31 +00:00
interleaved-accesses-3.ll Second attempt at r285517. 2016-10-31 13:17:31 +00:00
interleaved-accesses-pred-stores.ll Reapply "[LV] Enable vectorization of loops with conditional stores by default" 2016-12-16 19:12:02 +00:00
interleaved-accesses.ll [LV] Ensure reverse interleaved group GEPs remain uniform 2016-09-02 16:19:22 +00:00
intrinsic.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
iv_outside_user.ll [LV] Fix-up external IV users after updating dominator tree 2017-01-09 19:05:29 +00:00
lcssa-crash.ll [LV] Fix an issue where forming LCSSA in the place that we did would 2017-01-26 10:41:09 +00:00
lifetime.ll
loop-form.ll
loop-vect-memdep.ll
memdep.ll
metadata-unroll.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
metadata-width.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
metadata.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
miniters.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
minmax_reduction.ll
multi-use-reduction-bug.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
multiple-address-spaces.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
multiple-strides-vectorization.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
no_array_bounds.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
no_idiv_reduction.ll
no_int_induction.ll
no_outside_user.ll Recommit [LV] Enable vectorization of loops where the IV has an external use 2016-06-15 00:35:26 +00:00
no_switch.ll [LV] Stop saying "use -Rpass-analysis=loop-vectorize" 2016-11-11 22:51:46 +00:00
noalias-md-licm.ll
noalias-md.ll
nofloat.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
non-const-n.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
nontemporal.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
nsw-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
opt.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
optsize.ll
partial-lcssa.ll [LV] Run loop-simplify and LCSSA explicitly instead of "requiring" them 2017-01-19 00:42:28 +00:00
phi-hang.ll
pr25281.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
pr28541.ll [LoopVectorize] Detect loops in the innermost loop before creating InnerLoopVectorizer 2016-08-12 22:47:13 +00:00
pr31190.ll [LV] Run loop-simplify and LCSSA explicitly instead of "requiring" them 2017-01-19 00:42:28 +00:00
ptr_loops.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
ptr-induction.ll Reverted patch 273864 2016-06-29 10:01:06 +00:00
read-only.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
reduction.ll [LV] Allow reductions that have several uses outside the loop 2017-01-18 19:02:52 +00:00
reverse_induction.ll [LV] Don't emit unused scalars for uniform instructions 2016-09-21 16:50:24 +00:00
reverse_iter.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
runtime-check-address-space.ll
runtime-check-readonly-address-space.ll
runtime-check-readonly.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
runtime-check.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
runtime-limit.ll
safegep.ll
same-base-access.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
scalar_after_vectorization.ll [LV] Scalarize instructions marked scalar after vectorization 2016-09-26 17:08:37 +00:00
scalar-select.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
scev-exitlim-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
simple-unroll.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
small-loop.ll [LV] Don't vectorize when we have a small static bound on trip count 2016-12-13 20:38:18 +00:00
start-non-zero.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
store-shuffle-bug.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
struct_access.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
tbaa-nodep.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
undef-inst-bug.ll
unroll_novec.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
unroll.ll
unsafe-dep-remark.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
unsized-pointee-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
value-ptr-bug.ll
vect.omp.persistence.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
vect.stats.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
vectorize-once.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
version-mem-access.ll
write-only.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
zero-sized-pointee-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00