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99a1cd6e48b495cd34e9ffc94d0a1e1d2b2256da
archived-llvm/test/Transforms/LoopVectorize
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Matthew Simpson 99a1cd6e48 [LV] Don't mark pointers used by scalarized memory accesses uniform 
Previously, all consecutive pointers were marked uniform after vectorization.
However, if a consecutive pointer is used by a memory access that is eventually
scalarized, the pointer won't remain uniform after all. An example is
predicated stores. Even though a predicated store may be consecutive, it will
still be scalarized, making it's pointer operand non-uniform.

This patch updates the logic in collectLoopUniforms to consider the cases where
a memory access may be scalarized. If a memory access may be scalarized, its
pointer operand is not marked uniform. The determination of whether a given
memory instruction will be scalarized or not has been moved into a common
function that is used by the vectorizer, cost model, and legality analysis.

Differential Revision: https://reviews.llvm.org/D24271

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280979 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-08 19:11:07 +00:00
..
AArch64
[LV] Move insertelement sequence after scalar definitions
2016-08-29 20:14:04 +00:00
ARM
[ARM] AArch32 v8 NEON is still not IEEE-754 compliant
2016-04-18 12:06:47 +00:00
PowerPC
Recommit the patch "Use uniforms set to populate VecValuesToIgnore".
2016-07-19 00:50:43 +00:00
X86
[LV] Move insertelement sequence after scalar definitions
2016-08-29 20:14:04 +00:00
XCore
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
12-12-11-if-conv.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
2012-10-20-infloop.ll
Rename getMaximumUnrollFactor -> getMaxInterleaveFactor; also rename option names controlling this variable.
2014-09-10 17:58:16 +00:00
2012-10-22-isconsec.ll
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator
2015-03-13 18:20:45 +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
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
bsd_regex.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
bzip_reverse_loops.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
calloc.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
cast-induction.ll
[LV] For some IVs, use vector phis instead of widening in the loop body
2016-06-01 17:16:46 +00:00
conditional-assignment.ll
[PM] Port LoopVectorize to the new PM.
2016-07-09 22:56:50 +00:00
consecutive-ptr-uniforms.ll
[LV] Don't mark pointers used by scalarized memory accesses uniform
2016-09-08 19:11:07 +00:00
control-flow.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
cpp-new-array.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
dbg.value.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
debugloc.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
diag-with-hotness-info-2.ll
[OptDiag,LV] Add hotness attribute to analysis remarks
2016-07-20 21:44:26 +00:00
diag-with-hotness-info.ll
[LV] Add hotness attribute to missed-optimization remarks
2016-07-20 04:03:43 +00:00
duplicated-metadata.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
ee-crash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
exact.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
flags.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
float-induction.ll
[Loop Vectorizer] Handling loops FP induction variables.
2016-07-24 07:24:54 +00:00
float-reduction.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
funcall.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
gcc-examples.ll
[LV] For some IVs, use vector phis instead of widening in the loop body
2016-06-01 17:16:46 +00:00
gep_with_bitcast.ll
[LV] Don't widen trivial induction variables
2016-07-06 14:26:59 +00:00
global_alias.ll
Recommit the patch "Use uniforms set to populate VecValuesToIgnore".
2016-07-19 00:50:43 +00:00
hints-trans.ll
[LoopVectorize] Keep hints from original loop on the vector loop
2016-04-29 01:27:40 +00:00
hoist-loads.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
i8-induction.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
if-conv-crash.ll
Rename getMaximumUnrollFactor -> getMaxInterleaveFactor; also rename option names controlling this variable.
2014-09-10 17:58:16 +00:00
if-conversion-edgemasks.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
if-conversion-nest.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
if-conversion-reduction.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
if-conversion.ll
[InstCombine] canonicalize* LE/GE vector integer comparisons to LT/GT (PR26701, PR26819)
2016-05-13 15:10:46 +00:00
if-pred-non-void.ll
[LoopVectorizer] Predicate instructions in blocks with several incoming edges
2016-08-30 20:22:21 +00:00
if-pred-not-when-safe.ll
[Loop Vectorizer] Support predication of div/rem
2016-08-24 11:37:57 +00:00
if-pred-stores.ll
[LoopVectorizer] Predicate instructions in blocks with several incoming edges
2016-08-30 20:22:21 +00:00
incorrect-dom-info.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
increment.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
induction_plus.ll
[LV] Move vector int induction update to end of latch
2016-07-21 21:20:15 +00:00
induction-step.ll
[LoopVectorize] Handling induction variable with non-constant step.
2016-05-10 07:33:35 +00:00
induction.ll
[LV] Generate both scalar and vector integer induction variables
2016-08-02 15:25:16 +00:00
infiniteloop.ll
Fix missing CHECK-LABELs
2013-10-02 20:29:00 +00:00
interleaved-accesses-pred-stores.ll
[ValueTracking] Teach computeKnownBits about [su]min/max
2016-08-06 08:16:00 +00:00
interleaved-accesses.ll
[LV] Ensure reverse interleaved group GEPs remain uniform
2016-09-02 16:19:22 +00:00
intrinsic.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
iv_outside_user.ll
[LV] Remove wrong assumption about LCSSA
2016-07-12 21:24:06 +00:00
lcssa-crash.ll
Rename getMaximumUnrollFactor -> getMaxInterleaveFactor; also rename option names controlling this variable.
2014-09-10 17:58:16 +00:00
lifetime.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
loop-form.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
loop-vect-memdep.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
memdep.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
metadata-unroll.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
metadata-width.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
metadata.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
miniters.ll
The patch replace the overflow check in loop vectorization with the minimum loop iterations check.
2015-08-25 16:43:47 +00:00
minmax_reduction.ll
[LoopUtils,LV] Propagate fast-math flags on generated FCmp instructions
2015-09-21 19:41:19 +00:00
multi-use-reduction-bug.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
multiple-address-spaces.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
multiple-strides-vectorization.ll
Quick fix for the test from rL272014 "[LAA] Improve non-wrapping pointer
2016-06-07 15:52:35 +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
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
no_int_induction.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
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
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
noalias-md-licm.ll
[LoopVectorize] Annotate versioned loop with noalias metadata
2016-03-17 20:32:37 +00:00
noalias-md.ll
[LoopVectorize] Annotate versioned loop with noalias metadata
2016-03-17 20:32:37 +00:00
nofloat.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
non-const-n.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
nontemporal.ll
[LoopVectorize] Propagate 'nontemporal' attribute into vectorized instructions.
2015-08-20 22:27:38 +00:00
nsw-crash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
opt.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
optsize.ll
fix minsize detection: minsize attribute implies optimizing for size
2015-08-11 15:56:31 +00:00
phi-hang.ll
[Verifier] Reject PHIs using defs from own block.
2016-03-26 23:32:57 +00:00
pr25281.ll
[PR25281] Remove AAResultsWrapper from preserved analyses of loop vectorizer.
2016-04-29 03:31:25 +00:00
pr28541.ll
[LoopVectorize] Detect loops in the innermost loop before creating InnerLoopVectorizer
2016-08-12 22:47:13 +00:00
ptr_loops.ll
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator
2015-03-13 18:20:45 +00:00
ptr-induction.ll
Reverted patch 273864
2016-06-29 10:01:06 +00:00
read-only.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
reduction.ll
[LV] Don't bail to MiddleBlock if a runtime check fails, bail to ScalarPH instead
2015-09-02 10:15:39 +00:00
reverse_induction.ll
Recommit the patch "Use uniforms set to populate VecValuesToIgnore".
2016-07-19 00:50:43 +00:00
reverse_iter.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
runtime-check-address-space.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
runtime-check-readonly-address-space.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
runtime-check-readonly.ll
[Loop Vectorizer] Fixed memory confilict checks.
2016-08-28 08:53:53 +00:00
runtime-check.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
runtime-limit.ll
Fix test introduced in r246187 that failed on some systems.
2015-08-27 20:43:29 +00:00
safegep.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
same-base-access.ll
[SCEV][LAA] Re-commit r260085 and r260086, this time with a fix for the memory
2016-02-08 17:02:45 +00:00
scalar-select.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
scev-exitlim-crash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
simple-unroll.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
small-loop.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
start-non-zero.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
store-shuffle-bug.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
struct_access.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
tbaa-nodep.ll
[Loop Vectorizer] Fixed memory confilict checks.
2016-08-28 08:53:53 +00:00
undef-inst-bug.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
unroll_novec.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
unroll.ll
[X86] Disable loop unrolling in loop vectorization pass when VF is 1.
2015-05-06 17:12:25 +00:00
unsafe-dep-remark.ll
[LV] Hint at the new loop distribution pragma in optimization remark
2016-05-09 23:03:44 +00:00
unsized-pointee-crash.ll
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
2015-02-27 19:29:02 +00:00
value-ptr-bug.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
vect.omp.persistence.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
vect.stats.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
vectorize-once.ll
Introduce runtime unrolling disable matadata and use it to mark the scalar loop from vectorization.
2015-03-09 06:14:18 +00:00
version-mem-access.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
write-only.ll
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
zero-sized-pointee-crash.ll
[LoopVectorize] Don't crash on zero-sized types in isInductionPHI
2015-06-05 10:52:40 +00:00