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[GCC12] Multiple maybe-uninitialized warnings in L1CaloLayer1 #1135

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aloeliger opened this issue Jun 1, 2023 · 0 comments
Open

[GCC12] Multiple maybe-uninitialized warnings in L1CaloLayer1 #1135

aloeliger opened this issue Jun 1, 2023 · 0 comments
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Compiler Error Issues causing problems in compilation Phase-1 Pertains to phase-1 development

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@aloeliger
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What

Taken from cms-sw#41794

GCC 12 is emitting compilation warnings about maybe-uninitialized variables in L1TCaloLayer1 code:

Arrays contents is not initialized in L1TCaloLayer1::costruct:

>> Building edm plugin tmp/el8_amd64_gcc12/src/L1Trigger/L1TCaloLayer1/plugins/L1TriggerL1TCaloLayer1Auto/libL1TriggerL1TCaloLayer1Auto.so
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/bin/c++ -O2 -pthread -pipe -Werror=main -Werror=pointer-arith -Werror=overlength-strings -Wno-vla -Werror=overflow -std=c++17 -ftree-vectorize -Werror=array-bounds -Werror=format-contains-nul -Werror=type-limits -fvisibility-inlines-hidden -fno-math-errno --param vect-max-version-for-alias-checks=50 -Xassembler --compress-debug-sections -Wno-error=array-bounds -Warray-bounds -fuse-ld=bfd -msse3 -felide-constructors -fmessage-length=0 -Wall -Wno-non-template-friend -Wno-long-long -Wreturn-type -Wextra -Wpessimizing-move -Wclass-memaccess -Wno-cast-function-type -Wno-unused-but-set-parameter -Wno-ignored-qualifiers -Wno-deprecated-copy -Wno-unused-parameter -Wunused -Wparentheses -Wno-deprecated -Werror=return-type -Werror=missing-braces -Werror=unused-value -Werror=unused-label -Werror=address -Werror=format -Werror=sign-compare -Werror=write-strings -Werror=delete-non-virtual-dtor -Werror=strict-aliasing -Werror=narrowing -Werror=unused-but-set-variable -Werror=reorder -Werror=unused-variable -Werror=conversion-null -Werror=return-local-addr -Wnon-virtual-dtor -Werror=switch -fdiagnostics-show-option -Wno-unused-local-typedefs -Wno-attributes -Wno-psabi -Wno-error=unused-variable -DBOOST_DISABLE_ASSERTS -flto -fipa-icf -flto-odr-type-merging -fno-fat-lto-objects -Wodr -shared -Wl,-E -Wl,-z,defs tmp/el8_amd64_gcc12/src/L1Trigger/L1TCaloLayer1/plugins/L1TriggerL1TCaloLayer1Auto/L1TCaloLayer1.cc.o tmp/el8_amd64_gcc12/src/L1Trigger/L1TCaloLayer1/plugins/L1TriggerL1TCaloLayer1Auto/L1TCaloLayer1Validator.cc.o tmp/el8_amd64_gcc12/src/L1Trigger/L1TCaloLayer1/plugins/L1TriggerL1TCaloLayer1Auto/L1TCaloSummary.cc.o -o tmp/el8_amd64_gcc12/src/L1Trigger/L1TCaloLayer1/plugins/L1TriggerL1TCaloLayer1Auto/libL1TriggerL1TCaloLayer1Auto.so -Wl,-E -Wl,--hash-style=gnu -L.../CMSSW_13_2_X_2023-05-29-1100/biglib/el8_amd64_gcc12 -L.../CMSSW_13_2_X_2023-05-29-1100/lib/el8_amd64_gcc12 -L.../CMSSW_13_2_X_2023-05-29-1100/external/el8_amd64_gcc12/lib -L.../CMSSW_13_2_X_2023-05-29-1100/static/el8_amd64_gcc12 -lL1TriggerL1TCaloLayer1 -lL1TriggerL1TCalorimeter -lDataFormatsL1TCalorimeter -lGeometryHcalTowerAlgo -lDataFormatsL1Trigger -lGeometryCaloTopology -lCalibFormatsCaloTPG -lDataFormatsL1TrackTrigger -lGeometryHcalCommonData -lCondFormatsDataRecord -lDataFormatsTrackerCommon -lDetectorDescriptionRegressionTest -lGeometryCaloGeometry -lGeometryHGCalTBCommonData -lCondFormatsL1TObjects -lDataFormatsCaloTowers -lDataFormatsGeometryCommonDetAlgo -lDataFormatsSiStripCluster -lDetectorDescriptionParser -lGeometryHGCalCommonData -lGeometryRecords -lCondFormatsAlignmentRecord -lDataFormatsCandidate -lDataFormatsEcalDigi -lDataFormatsGeometrySurface -lDataFormatsHcalDigi -lDataFormatsL1GlobalCaloTrigger -lDataFormatsTrajectoryState -lDetectorDescriptionCore -lDetectorDescriptionDDCMS -lCalibFormatsCaloObjects -lCondFormatsGeometryObjects -lDataFormatsCLHEP -lDataFormatsEcalDetId -lDataFormatsForwardDetId -lDataFormatsGeometryVector -lDataFormatsHcalDetId -lDataFormatsL1CaloTrigger -lDataFormatsL1GlobalTrigger -lDataFormatsSiPixelDetId -lDataFormatsSiStripDetId -lFWCoreFramework -lSimDataFormatsCaloHit -lDataFormatsDetId -lDataFormatsL1GlobalMuonTrigger -lDataFormatsMath -lDataFormatsPhase2TrackerDigi -lDataFormatsSiPixelCluster -lDataFormatsSiStripDigi -lFWCoreCommon -lFWCoreServiceRegistry -lDataFormatsCommon -lFWCoreParameterSet -lFWCoreMessageLogger -lDataFormatsProvenance -lFWCorePluginManager -lFWCoreReflection -lCondFormatsSerialization -lFWCoreConcurrency -lFWCoreUtilities -lFWCoreVersion -lSimDataFormatsEncodedEventId -lUtilitiesXerces -lDDAlign -lDDCond -lDDCore -lDDParsers -lPhysics -lHist -lMatrix -lGenVector -lMathMore -lTree -lNet -lGeom -lThread -lMathCore -lRIO -lboost_serialization -lCore -lboost_thread -lboost_date_time -lCLHEP -lpcre -lbz2 -lgsl -lemulator_interface -luuid -ltbb -ltmeventsetup -ltmtable -ltmxsd -ltmgrammar -ltmutil -lxerces-c -llzma -lz -lfmt -lcms-md5 -lopenblas -lcrypt -ldl -lrt -lstdc++fs -ltinyxml2
lto-wrapper: warning: using serial compilation of 2 LTRANS jobs
lto-wrapper: note: see the '-flto' option documentation for more information
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1281:30,
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:315:22:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'eCalLayer1EtaSideEtArray' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc: In member function 'beginRun':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:312:86: note: 'eCalLayer1EtaSideEtArray' declared here
  312 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> eCalLayer1EtaSideEtArray;
      |                                                                                      ^
In member function 'push_back',
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:315:22:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1287:28: warning: 'eCalLayer1EtaSideEtArray' may be used uninitialized [-Wmaybe-uninitialized]
  1287 |           _M_realloc_insert(end(), __x);
      |                            ^
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc: In member function 'beginRun':
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc:439:7: note: by argument 3 of type 'const struct array &' to '_M_realloc_insert' declared here
  439 |       vector<_Tp, _Alloc>::
      |       ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:312:86: note: 'eCalLayer1EtaSideEtArray' declared here
  312 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> eCalLayer1EtaSideEtArray;
      |                                                                                      ^
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1281:30,
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:316:22:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'hCalLayer1EtaSideEtArray' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc: In member function 'beginRun':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:313:86: note: 'hCalLayer1EtaSideEtArray' declared here
  313 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> hCalLayer1EtaSideEtArray;
      |                                                                                      ^
In member function 'push_back',
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:316:22:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1287:28: warning: 'hCalLayer1EtaSideEtArray' may be used uninitialized [-Wmaybe-uninitialized]
  1287 |           _M_realloc_insert(end(), __x);
      |                            ^
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc: In member function 'beginRun':
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc:439:7: note: by argument 3 of type 'const struct array &' to '_M_realloc_insert' declared here
  439 |       vector<_Tp, _Alloc>::
      |       ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:313:86: note: 'hCalLayer1EtaSideEtArray' declared here
  313 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> hCalLayer1EtaSideEtArray;
      |                                                                                      ^
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1281:30,
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:317:20:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'hfLayer1EtaEtArray' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc: In member function 'beginRun':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:314:59: note: 'hfLayer1EtaEtArray' declared here
  314 |     std::array<std::array<uint32_t, nEtBins>, nHfEtaBins> hfLayer1EtaEtArray;
      |                                                           ^
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from '_M_realloc_insert' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc:462:28,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1287:21,
    inlined from 'beginRun' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:317:20:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'hfLayer1EtaEtArray' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc: In member function 'beginRun':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloLayer1.cc:314:59: note: 'hfLayer1EtaEtArray' declared here
  314 |     std::array<std::array<uint32_t, nEtBins>, nHfEtaBins> hfLayer1EtaEtArray;
      |                                                           ^

False-positive warnings about modelResult not being initialized in L1TCaloSummary::produce (as far as I understand, it is filled later, so maybe silence the warning for that block?)

In member function 'clearUnusedBits',
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:1595:20,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_common.h:248:18,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:389:26,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed.h:33:28,
    inlined from 'produce' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:220:32:
  .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:2109:27: warning: 'MEM[(volatile struct ap_private *)&modelResult].VAL' may be used uninitialized [-Wmaybe-uninitialized]
  2109 |             ? ((((int64_t)VAL) << (excess_bits)) >> (excess_bits))
      |                           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc: In member function 'produce':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:220:19: note: 'modelResult' declared here
  220 |   ap_fixed<11, 5> modelResult[1];
      |                   ^
In member function 'clearUnusedBits',
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:1595:20,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_common.h:248:18,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:507:3,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed.h:295:3,
    inlined from 'produce' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:216:59:
  .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:2110:42: warning: 'MEM[(volatile struct ap_private *)&D.16016].VAL' may be used uninitialized [-Wmaybe-uninitialized]
  2110 |             : (excess_bits ? (((uint64_t)VAL) << (excess_bits)) >> (excess_bits)
      |                                          ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc: In member function 'produce':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:216:59: note: '<anonymous>' declared here
  216 |     modelInput[14 * i.gctPhi() + (i.gctEta() - 4)] = i.et();
      |                                                           ^
In member function 'clearUnusedBits',
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:1595:20,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_common.h:248:18,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:389:26,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:507:3,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed.h:295:3,
    inlined from 'produce' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:216:59:
  .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:2110:42: warning: 'MEM[(volatile struct ap_private *)&tmp].VAL' may be used uninitialized [-Wmaybe-uninitialized]
  2110 |             : (excess_bits ? (((uint64_t)VAL) << (excess_bits)) >> (excess_bits)
      |                                          ^
.../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h: In member function 'produce':
.../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:507:3: note: 'tmp' declared here
  507 |   CTOR_FROM_INT(unsigned int, _AP_SIZE_int, false)
      |   ^
In member function 'clearUnusedBits',
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:1595:20,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_common.h:248:18,
    inlined from '__ct ' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_int_base.h:169:24,
    inlined from 'to_float' at .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:904:31,
    inlined from 'produce' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/plugins/L1TCaloSummary.cc:225:42:
  .../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/etc/ap_private.h:2110:42: warning: 'MEM[(volatile struct ap_private *)&tmp].VAL' may be used uninitialized [-Wmaybe-uninitialized]
  2110 |             : (excess_bits ? (((uint64_t)VAL) << (excess_bits)) >> (excess_bits)
      |                                          ^
.../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h: In member function 'produce':
.../external/hls/2019.08-a842a7d71d45f27e643fb5cc4eec3d81/include/ap_fixed_base.h:904:31: note: 'tmp' declared here
  904 |     ap_int_base<_AP_W, false> tmp;
      |                               ^

Arrays not initialized in L1TCaloLayer1FetchLUTs(...):

.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc: In function 'L1TCaloLayer1FetchLUTs':
  .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:177:19: warning: 'phiLUT' may be used uninitialized [-Wmaybe-uninitialized]
   177 |     eLUT.push_back(phiLUT);
      |                   ^
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1276:7: note: by argument 2 of type 'const struct value_type &' to 'push_back' declared here
 1276 |       push_back(const value_type& __x)
      |       ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:176:86: note: 'phiLUT' declared here
  176 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> phiLUT;
      |                                                                                      ^
  .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:228:19: warning: 'phiLUT' may be used uninitialized [-Wmaybe-uninitialized]
   228 |     hLUT.push_back(phiLUT);
      |                   ^
.../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1276:7: note: by argument 2 of type 'const struct value_type &' to 'push_back' declared here
 1276 |       push_back(const value_type& __x)
      |       ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:227:86: note: 'phiLUT' declared here
  227 |     std::array<std::array<std::array<uint32_t, nEtBins>, nCalSideBins>, nCalEtaBins> phiLUT;
      |                                                                                      ^
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1281:30,
    inlined from 'L1TCaloLayer1FetchLUTs' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:292:20:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'phiLUT' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc: In function 'L1TCaloLayer1FetchLUTs':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:291:59: note: 'phiLUT' declared here
  291 |     std::array<std::array<uint32_t, nEtBins>, nHfEtaBins> phiLUT;
      |                                                           ^
In member function 'construct',
    inlined from 'construct' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/alloc_traits.h:516:17,
    inlined from '_M_realloc_insert' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/vector.tcc:462:28,
    inlined from 'push_back' at .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/stl_vector.h:1287:21,
    inlined from 'L1TCaloLayer1FetchLUTs' at .../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:292:20:
  .../external/gcc/12.2.1-59043c7bdcfa6002a8c9155ca1109454/include/c++/12.2.1/bits/new_allocator.h:175:11: warning: 'phiLUT' may be used uninitialized [-Wmaybe-uninitialized]
   175 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
      |           ^
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc: In function 'L1TCaloLayer1FetchLUTs':
.../CMSSW_13_2_X_2023-05-29-1100/src/L1Trigger/L1TCaloLayer1/src/L1TCaloLayer1FetchLUTs.cc:291:59: note: 'phiLUT' declared here
  291 |     std::array<std::array<uint32_t, nEtBins>, nHfEtaBins> phiLUT;
      |                                                           ^

(here I would suggest moving eLUT.push_back(phiLUT); after the code that fills phiLUT)

Recipe to recreate

N/A
@aloeliger aloeliger added Phase-1 Pertains to phase-1 development Compiler Error Issues causing problems in compilation labels Jun 1, 2023
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