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llvm-mirror/test/Transforms/LoopVectorize
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Matthew Simpson aa3b094d0c [LV] Scalarize operands of predicated instructions 
This patch attempts to scalarize the operand expressions of predicated
instructions if they were conditionally executed in the original loop. After
scalarization, the expressions will be sunk inside the blocks created for the
predicated instructions. The transformation essentially performs
un-if-conversion on the operands.

The cost model has been updated to determine if scalarization is profitable. It
compares the cost of a vectorized instruction, assuming it will be
if-converted, to the cost of the scalarized instruction, assuming that the
instructions corresponding to each vector lane will be sunk inside a predicated
block, possibly avoiding execution. If it's more profitable to scalarize the
entire expression tree feeding the predicated instruction, the expression will
be scalarized; otherwise, it will be vectorized. We only consider the cost of
the entire expression to accurately estimate the cost of the required
insertelement and extractelement instructions.

Differential Revision: https://reviews.llvm.org/D26083

llvm-svn: 288909
2016-12-07 15:03:32 +00:00
..
AArch64 [LV] Scalarize operands of predicated instructions 2016-12-07 15:03:32 +00:00
ARM Second attempt at r285517. 2016-10-31 13:17:31 +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 [LV] Scalarize operands of predicated instructions 2016-12-07 15:03:32 +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
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 [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +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 [LV] Sink scalar operands of predicated instructions 2016-10-25 18:59:45 +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 [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +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 [LV] Stop saying "use -Rpass-analysis=loop-vectorize" 2016-11-11 22:51:46 +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
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
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 [LV] Scalarize operands of predicated instructions 2016-12-07 15:03:32 +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
induction.ll [LV] Sink scalar operands of predicated instructions 2016-10-25 18:59:45 +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
interleaved-accesses.ll
intrinsic.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
iv_outside_user.ll
lcssa-crash.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +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
no_idiv_reduction.ll
no_int_induction.ll
no_outside_user.ll
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
phi-hang.ll
pr25281.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
pr28541.ll
ptr_loops.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
ptr-induction.ll
read-only.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +00:00
reduction.ll [LV] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +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] Remove triples from target-independent vectorizer tests. NFC. 2016-10-06 23:57:25 +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