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Sanjay Patel fd4fb656a1 [SLP] allow forming 2-way reduction patterns We have a vector compare reduction problem seen in PR39665 comment 2: https://bugs.llvm.org/show_bug.cgi?id=39665#c2 Or slightly reduced here: define i1 @cmp2(<2 x double> %a0) { %a = fcmp ogt <2 x double> %a0, <double 1.0, double 1.0> %b = extractelement <2 x i1> %a, i32 0 %c = extractelement <2 x i1> %a, i32 1 %d = and i1 %b, %c ret i1 %d } SLP would not attempt to turn this into a vector reduction because there is an artificial lower limit on that transform. We can not completely remove that limit without inducing regressions though, so this patch just hacks an extra attempt at creating a 2-way reduction to the end of the analysis. As shown in the test file, we are still not getting some of the motivating cases, so follow-on patches will be needed to solve those cases. Differential Revision: https://reviews.llvm.org/D59710		2019-11-07 06:08:42 -05:00
..
OperandBundles	Add, and infer, a nofree function attribute	2019-07-08 15:57:56 +00:00
alias2.ll
aliases.ll
alignment.ll
attributes.ll
basictest.ll
callingconventions.ll
calltest.ll
casttest.ll
cfgstructures.ll
cold.ll
comdat.ll
const_pv.ll
constexpr.ll
constpointer.ll
elf-deplibs.ll	[ELF] Implement Dependent Libraries Feature	2019-05-17 03:44:15 +00:00
elf-linker-options.ll
escaped_label.ll
exception.ll
float.ll
fold-fpcast.ll
forwardreftest.ll
fp-intrinsics.ll	[FPEnv] Add constrained intrinsics for lrint and lround	2019-10-07 13:20:00 +00:00
global_pv.ll	[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format	2019-05-15 02:35:32 +00:00
global_section.ll
globalredefinition3.ll
globalvars.ll
indirectcall2.ll
indirectcall.ll
inlineasm.ll
instructions.ll
intrinsic-noduplicate.ll
intrinsics.ll	[FunctionAttrs] Annotate "willreturn" for intrinsics	2019-07-28 06:09:56 +00:00
load_module.ll	[Bugpoint] Only run plugins tests if plugins are enabled	2019-05-17 06:41:04 +00:00
md_on_instruction.ll
memorymarkers.ll
metadata.ll
minsize_attr.ll
NamedMDNode2.ll
NamedMDNode.ll
newcasts.ll
optnone-llc.ll
optnone-opt.ll
optnone.ll
packed_struct.ll
packed.ll
paramattrs.ll
ppcld.ll
prefixdata.ll
prologuedata.ll
properties.ll
prototype.ll
README.txt
recursivetype.ll
seh-nounwind.ll
simplecalltest.ll
small.ll
smallest.ll
sparcld.ll
strip_names.ll	IR: print value numbers for unnamed function arguments	2019-08-03 14:28:34 +00:00
terminators.ll
testalloca.ll
testconstants.ll
testlogical.ll
testtype.ll
testvarargs.ll
undefined.ll
unreachable.ll
varargs_new.ll
varargs.ll
vector-cast-constant-exprs.ll
weak_constant.ll	[SLP] allow forming 2-way reduction patterns	2019-11-07 06:08:42 -05:00
weirdnames.ll
x86ld.ll

README.txt

This directory contains test cases for individual source features of LLVM.
It is designed to make sure that the major components of LLVM support all of the
features of LLVM, for very small examples.  Entire programs should not go here.

Regression tests for individual bug fixes should go into the test/Regression dir.