[PATCH] D80477: [LoopUnroll] Support loops with exiting block that is neither header nor latch.
Nathan Chancellor via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri May 29 22:18:34 PDT 2020
nathanchance added a comment.
This patch causes a crash in the Linux kernel when building s390 allyesconfig:
$ git bisect log
# bad: [4e74541a928090b3604094e239884b0ea0a631bb] [LoopUnroll] Fix not-rotated.ll by adding back a limitation was unintentionally removed in https://reviews.llvm.org/D80477
# good: [49544499954912c5a0f02014de53e0bc0234c7af] [Driver][X86] Support branch align options with LTO
git bisect start '4e74541a928090b3604094e239884b0ea0a631bb' '49544499954912c5a0f02014de53e0bc0234c7af'
# good: [a7fa35a629e85a72b8cf07a8f95c7c09d9663808] [ThinLTO] Compute the basic block count across modules.
git bisect good a7fa35a629e85a72b8cf07a8f95c7c09d9663808
# good: [8b3155829a99fecc9e62f84d95668d0e85a0dd62] [MLIR] Fix build when NVPTX is not enabled
git bisect good 8b3155829a99fecc9e62f84d95668d0e85a0dd62
# good: [791c78f5e0ce84bcd4cfcccbbbbcc1259f4d7e0c] [NFC,StackSafety] Add test flag
git bisect good 791c78f5e0ce84bcd4cfcccbbbbcc1259f4d7e0c
# good: [8c050070fb96b4e6b8608a120d102bac0c8ada1c] [X86] Fix a nullptr dereference in X86Subtarget::classifyLocalReference when compiling with -mcmodel=medium -fpic and using a constant pool
git bisect good 8c050070fb96b4e6b8608a120d102bac0c8ada1c
# bad: [59ba12994c07d03ac3b628c05c45a834774f9b17] [llvm-xray][test] Fix unsupported-elf32.txt after D80185
git bisect bad 59ba12994c07d03ac3b628c05c45a834774f9b17
# good: [38727bab6f1337880861b7ffd5a02fcff581facc] [NFC][SLP] Add test case exposing SLP cost model bug. The bug is related to aggregate build cost model adjustment that adds a bias to cost triggering vectorization of actually unprofitable to vectorize tree.
git bisect good 38727bab6f1337880861b7ffd5a02fcff581facc
# bad: [1bc73b02d6934c8586ca5740da416b7094c3c471] [LoopUnroll] Support loops with exiting block that is neither header nor latch.
git bisect bad 1bc73b02d6934c8586ca5740da416b7094c3c471
# good: [b4668a268ddedea76bd406818fd0313b58e6f750] [AMDGPU] DWARF Proposal For Heterogeneous Debugging
git bisect good b4668a268ddedea76bd406818fd0313b58e6f750
# first bad commit: [1bc73b02d6934c8586ca5740da416b7094c3c471] [LoopUnroll] Support loops with exiting block that is neither header nor latch.
$ CROSS_COMPILE=s390x-linux-gnu-
$ make \
-C "${HOME}"/src/linux \
-s \
ARCH=s390 \
CROSS_COMPILE=${CROSS_COMPILE} \
LLVM=1 \
LD=${CROSS_COMPILE}ld \
OBJCOPY=${CROSS_COMPILE}objcopy \
OBJDUMP=${CROSS_COMPILE}objdump \
O=out/s390 \
distclean \
allyesconfig \
kernel/trace/trace_events_filter.o
DominatorTree is different than a freshly computed one!
Current:
=============================--------------------------------
Inorder Dominator Tree: DFSNumbers invalid: 0 slow queries.
[1] %entry {0,653} [0]
[2] %if.end51.thread.i {1,2} [1]
[2] %calc_stack.exit {3,586} [1]
[3] %if.then {4,13} [2]
[4] %sw.default {5,6} [3]
[4] %sw.epilog {7,8} [3]
[4] %sw.bb {9,10} [3]
[4] %sw.bb2 {11,12} [3]
[3] %cleanup {14,15} [2]
[3] %if.end {16,585} [2]
[4] %if.then3 {17,18} [3]
[4] %if.end4 {19,584} [3]
[5] %if.then.i {20,21} [4]
[5] %predicate_parse.exit {22,27} [4]
[6] %if.then7 {23,24} [5]
[6] %do.body {25,26} [5]
[5] %if.end.i48 {28,583} [4]
[6] %if.end6.i {29,566} [5]
[7] %if.then10.i {30,31} [6]
[7] %if.end11.i {32,565} [6]
[8] %if.end130.thread.i {33,34} [7]
[8] %if.then132.i {35,36} [7]
[8] %while.body.lr.ph.i {37,564} [7]
[9] %while.body.i {38,563} [8]
[10] %if.end17.i {39,500} [9]
[11] %sw.epilog.i54 {40,485} [10]
[12] %if.end37.i {41,482} [11]
[13] %while.end.i.i {42,469} [12]
[14] %while.cond5.i.i {43,468} [13]
[15] %lor.rhs.i.i {44,45} [14]
[15] %while.body20.i.i {46,465} [14]
[16] %while.body20.critedge.i.i.1 {47,48} [15]
[16] %lor.rhs.i.i.1 {49,462} [15]
[17] %while.end22.i.i {50,461} [16]
[18] %if.then.i.i {51,52} [17]
[18] %parse_pred.exit.i {53,98} [17]
[19] %if.then52.i {54,55} [18]
[19] %if.end53.i {56,97} [18]
[20] %while.cond54.outer.i {57,96} [19]
[21] %while.cond54.i.peel.begin {4294967295,4294967295} [20]
[22] %while.cond54.i.peel {4294967295,4294967295} [21]
[23] %while.cond54.i.peel.next {4294967295,4294967295} [22]
[24] %while.cond54.i.peel.next342 {4294967295,4294967295} [23]
[25] %while.cond54.outer.i.peel.newph {4294967295,4294967295} [24]
[26] %while.cond54.i {58,95} [25]
[23] %if.end65.i {59,94} [22]
[24] %sw.default.i {60,61} [23]
[24] %sw.epilog82.i {62,89} [23]
[25] %if.end89.i {63,86} [24]
[26] %if.then93.i {64,65} [25]
[26] %while.end.i {66,67} [25]
[26] %if.end94.i {68,85} [25]
[27] %if.end103.i {69,82} [26]
[28] %if.then107.i {70,71} [27]
[28] %if.end109.i {72,81} [27]
[29] %cleanup.thread32.i {73,74} [28]
[29] %if.end112.i {75,80} [28]
[30] %if.then115.i {76,77} [29]
[30] %if.end120.i {78,79} [29]
[27] %if.then97.i {83,84} [26]
[25] %if.then86.i {87,88} [24]
[24] %sw.bb68.i {90,93} [23]
[25] %if.then75.i57 {91,92} [24]
[18] %if.end.i.i {99,460} [17]
[19] %if.then26.i.i {100,101} [18]
[19] %if.end27.i.i {102,459} [18]
[20] %if.then30.i.i {103,104} [19]
[20] %while.cond32.preheader.i.i {105,458} [19]
[21] %while.end44.i.i {106,445} [20]
[22] %for.body.i.i {107,444} [21]
[23] %if.end66.i.i {108,437} [22]
[24] %kzalloc.exit.i.i {109,424} [23]
[25] %if.then88.i.i {110,111} [24]
[25] %if.end89.i.i {112,423} [24]
[26] %if.then94.i.i {113,158} [25]
[27] %if.end100.i.i {114,155} [26]
[28] %if.then111.i.i {115,116} [27]
[28] %if.end114.i.i {117,150} [27]
[29] %for.end154.i.i {118,119} [28]
[29] %if.end158.i.i {120,125} [28]
[30] %if.then162.i.i {121,122} [29]
[30] %if.end164.i.i {123,124} [29]
[29] %if.end158.i.i.sink.split {126,127} [28]
[29] %for.body120.lr.ph.i.i {128,149} [28]
[30] %for.body120.i.i {129,148} [29]
[31] %land.lhs.true132.i.i {130,137} [30]
[32] %lor.lhs.false138.i.i {131,134} [31]
[33] %lor.lhs.false144.i.i {132,133} [32]
[32] %if.end158.i.i.sink.split.loopexit {135,136} [31]
[31] %for.inc152.i.i {138,141} [30]
[32] %for.end154.i.i.loopexit {139,140} [31]
[31] %land.lhs.true.i.i {142,147} [30]
[32] %for.end154.thread593.i.i {143,144} [31]
[32] %if.end130.i.i {145,146} [31]
[28] %lor.lhs.false.i.i {151,154} [27]
[29] %if.else.i.i {152,153} [28]
[27] %if.then98.i.i {156,157} [26]
[26] %if.end355.i.i {159,160} [25]
[26] %if.else175.i.i {161,422} [25]
[27] %if.then187.i.i {162,297} [26]
[28] %sw.default.i.i {163,164} [27]
[28] %cleanup.thread.i.i {165,166} [27]
[28] %sw.bb.i.i {167,168} [27]
[28] %sw.epilog.i.i {169,296} [27]
[29] %is_string_field.exit591.thread.i.i {170,171} [28]
[29] %if.end196.i.i {172,287} [28]
[30] %for.end213.i.i {173,264} [29]
[31] %if.then217.i.i {174,175} [30]
[31] %if.end219.i.i {176,263} [30]
[32] %if.then224.i.i {177,178} [31]
[32] %if.end226.i.i {179,262} [31]
[33] %if.then.i.i.i {180,239} [32]
[34] %if.then.i.i.i.i {181,182} [33]
[34] %if.end.i.i.i.i {183,236} [33]
[35] %land.rhs.i.i.i.i.i {184,187} [34]
[36] %if.then4.i.i.i.i {185,186} [35]
[35] %if.end5.i.i.i.i {188,223} [34]
[36] %for.body.preheader.i.i.i.i {189,216} [35]
[37] %for.body.i.i.i.i {190,215} [36]
[38] %if.then12.i.i.i.i {191,206} [37]
[39] %if.then14.i.i.i.i {192,193} [38]
[39] %if.else15.i.i.i.i {194,205} [38]
[40] %if.then18.i.i.i.i {195,202} [39]
[41] %if.then21.i.i.i.i {196,197} [40]
[41] %if.end23.i.i.i.i {198,199} [40]
[41] %if.else22.i.i.i.i {200,201} [40]
[40] %if.else26.i.i.i.i {203,204} [39]
[38] %for.inc.i.i.i.i {207,210} [37]
[39] %for.end.i.i.i.i.loopexit {208,209} [38]
[38] %if.else28.i.i.i.i {211,214} [37]
[39] %if.then34.i.i.i.i {212,213} [38]
[36] %for.end.i.i.i.i {217,222} [35]
[37] %if.then41.i.i.i.i {218,219} [36]
[37] %if.end42.i.i.i.i {220,221} [36]
[35] %if.end.i.i.i {224,233} [34]
[36] %sw.bb8.i.i.i {225,226} [35]
[36] %sw.bb10.i.i.i {227,228} [35]
[36] %sw.bb12.i.i.i {229,230} [35]
[36] %sw.bb14.i.i.i {231,232} [35]
[35] %if.end5.critedge.i.i.i.i {234,235} [34]
[34] %if.else.i.i.i.i {237,238} [33]
[33] %filter_build_regex.exit.i.i {240,255} [32]
[34] %if.then242.i.i {241,242} [33]
[34] %cleanup.i.i {243,244} [33]
[34] %if.else244.i.i {245,254} [33]
[35] %if.then248.i.i {246,247} [34]
[35] %if.else251.i.i {248,253} [34]
[36] %if.then255.i.i {249,250} [35]
[36] %if.else257.i.i {251,252} [35]
[33] %sw.bb.i.i.i {256,257} [32]
[33] %filter_build_regex.exit.i.i.sink.split {258,259} [32]
[33] %if.end.thread.i.i.i {260,261} [32]
[30] %for.body202.i.preheader.i {265,286} [29]
[31] %for.inc211.i.i.preheader {266,285} [30]
[32] %for.inc211.i.i {267,284} [31]
[33] %for.end213.i.i.loopexit {268,269} [32]
[33] %for.body202.i.i {270,283} [32]
[34] %for.inc211.i.i.1 {271,282} [33]
[35] %for.body202.i.i.1 {272,281} [34]
[36] %for.inc211.i.i.2 {273,280} [35]
[37] %for.body202.i.i.2 {274,279} [36]
[38] %for.inc211.i.i.3 {275,278} [37]
[39] %for.body202.i.i.3 {276,277} [38]
[29] %lor.lhs.false.i586.i.i {288,295} [28]
[30] %lor.lhs.false3.i588.i.i {289,294} [29]
[31] %is_string_field.exit591.i.i {290,293} [30]
[32] %if.then194.i.i {291,292} [31]
[27] %lor.lhs.false181.i.i {298,421} [26]
[28] %if.else263.i.i {299,420} [27]
[29] %land.rhs.i.i.i {300,301} [28]
[29] %isdigit.exit.i.i {302,419} [28]
[30] %lor.lhs.false269.i.i {303,306} [29]
[31] %if.else351.i.i {304,305} [30]
[30] %if.then275.i.i {307,418} [29]
[31] %is_string_field.exit.thread.i.i {308,309} [30]
[31] %if.then277.i.i {310,311} [30]
[31] %lor.lhs.false.i.i.i {312,417} [30]
[32] %lor.lhs.false3.i.i.i {313,416} [31]
[33] %is_string_field.exit.i.i {314,415} [32]
[34] %if.end279.i.i {315,414} [33]
[35] %if.then282.i.i {316,317} [34]
[35] %if.end284.i.i {318,413} [34]
[36] %if.then290.i.i {319,320} [35]
[36] %if.end292.i.i {321,412} [35]
[37] %while.end305.i.i {322,399} [36]
[38] %if.then310.i.i {323,324} [37]
[38] %if.end312.i.i {325,398} [37]
[39] %if.else324.i.i {326,327} [38]
[39] %if.end327.i.i {328,395} [38]
[40] %if.end331.i.i {329,392} [39]
[41] %if.then336.i.i {330,331} [40]
[41] %if.else338.i.i {332,391} [40]
[42] %sw.epilog.i.i.i {333,376} [41]
[43] %sw.epilog107.i.i.i {334,335} [42]
[43] %sw.bb54.i.i.i {336,345} [42]
[44] %if.then57.i.i.i {337,338} [43]
[44] %if.else.i.i.i {339,344} [43]
[45] %if.else60.i.i.i {340,341} [44]
[45] %if.then59.i.i.i {342,343} [44]
[43] %sw.bb65.i.i.i {346,355} [42]
[44] %if.then68.i.i.i {347,348} [43]
[44] %if.else69.i.i.i {349,354} [43]
[45] %if.else74.i.i.i {350,351} [44]
[45] %if.then71.i.i.i {352,353} [44]
[43] %sw.bb79.i.i.i {356,365} [42]
[44] %if.then82.i.i.i {357,358} [43]
[44] %if.else83.i.i.i {359,364} [43]
[45] %if.else88.i.i.i {360,361} [44]
[45] %if.then85.i.i.i {362,363} [44]
[43] %sw.bb93.i.i.i {366,375} [42]
[44] %if.then96.i.i.i {367,368} [43]
[44] %if.else97.i.i.i {369,374} [43]
[45] %if.else102.i.i.i {370,371} [44]
[45] %if.then99.i.i.i {372,373} [44]
[42] %select_comparison_fn.exit.i.i {377,380} [41]
[43] %if.then347.i.i {378,379} [42]
[42] %sw.default.i.i.i {381,390} [41]
[43] %do.body7.i.i.i {382,383} [42]
[43] %if.end19.critedge.i.i.i {384,389} [42]
[44] %do.body37.i.i.i {385,386} [43]
[44] %sw.epilog.critedge.i.i.i {387,388} [43]
[40] %if.then329.i.i {393,394} [39]
[39] %if.then321.i.i {396,397} [38]
[37] %while.body303.i.i.preheader {400,411} [36]
[38] %while.body303.i.i {401,410} [37]
[39] %while.end305.i.i.loopexit {402,403} [38]
[39] %while.body303.i.i.1 {404,409} [38]
[40] %while.body303.i.i.2 {405,408} [39]
[41] %while.body303.i.i.3 {406,407} [40]
[24] %while.body83.i.i.preheader {425,436} [23]
[25] %while.body83.i.i {426,435} [24]
[26] %kzalloc.exit.i.i.loopexit {427,428} [25]
[26] %while.body83.i.i.1 {429,434} [25]
[27] %while.body83.i.i.2 {430,433} [26]
[28] %while.body83.i.i.3 {431,432} [27]
[23] %err_free.i.i {438,439} [22]
[23] %for.inc.i.i {440,443} [22]
[24] %if.then64.i.i {441,442} [23]
[21] %while.body42.i.i.preheader {446,457} [20]
[22] %while.body42.i.i {447,456} [21]
[23] %while.end44.i.i.loopexit {448,449} [22]
[23] %while.body42.i.i.1 {450,455} [22]
[24] %while.body42.i.i.2 {451,454} [23]
[25] %while.body42.i.i.3 {452,453} [24]
[16] %while.body20.i.i.1 {463,464} [15]
[15] %while.body20.critedge.i.i {466,467} [14]
[13] %while.body.i.i.preheader {470,481} [12]
[14] %while.body.i.i {471,480} [13]
[15] %while.end.i.i.loopexit {472,473} [14]
[15] %while.body.i.i.1 {474,479} [14]
[16] %while.body.i.i.2 {475,478} [15]
[17] %while.body.i.i.3 {476,477} [16]
[12] %if.then32.i {483,484} [11]
[11] %cleanup.thread.i {486,487} [10]
[11] %sw.bb.i52 {488,493} [10]
[12] %if.then22.i {489,490} [11]
[12] %if.end23.i {491,492} [11]
[11] %sw.bb25.i {494,499} [10]
[12] %if.end28.i {495,496} [11]
[12] %is_not.exit.i {497,498} [11]
[10] %cleanup.i58 {501,504} [9]
[11] %out.i.loopexit {502,503} [10]
[10] %out.i {505,560} [9]
[11] %if.end130.i {506,557} [10]
[12] %if.end130.i.if.then132.i_crit_edge {507,508} [11]
[12] %if.end137.i {509,556} [11]
[13] %for.end.i61 {510,527} [12]
[14] %for.body184.preheader.i {511,524} [13]
[15] %for.body184.i {512,523} [14]
[16] %for.inc.critedge.i {513,520} [15]
[17] %for.end237.i.loopexit {514,515} [16]
[17] %for.body184.i.1 {516,519} [16]
[18] %for.inc.critedge.i.1 {517,518} [17]
[16] %do.body219.i {521,522} [15]
[14] %for.end237.i {525,526} [13]
[13] %for.body.preheader.i {528,555} [12]
[14] %for.body.i59.prol.preheader {529,536} [13]
[15] %for.body.i59.prol {530,535} [14]
[16] %if.then173.i.prol {531,532} [15]
[16] %if.end180.i.prol {533,534} [15]
[14] %for.body.i59.prol.loopexit {537,554} [13]
[15] %for.body.preheader.i.new {538,551} [14]
[16] %for.body.i59 {539,550} [15]
[17] %if.then173.i {540,541} [16]
[17] %if.end180.i {542,549} [16]
[18] %if.end180.i.1 {543,546} [17]
[19] %for.end.i61.loopexit.unr-lcssa {544,545} [18]
[18] %if.then173.i.1 {547,548} [17]
[15] %for.end.i61.loopexit {552,553} [14]
[11] %if.then125.i {558,559} [10]
[10] %if.then16.i {561,562} [9]
[6] %out_free.i {567,580} [5]
[7] %if.then239.i {568,577} [6]
[8] %for.end251.i {569,570} [7]
[8] %for.body245.i.preheader {571,576} [7]
[9] %for.body245.i {572,575} [8]
[10] %for.end251.i.loopexit {573,574} [9]
[7] %if.end252.i {578,579} [6]
[6] %if.then5.i {581,582} [5]
[2] %for.body.i.preheader {587,652} [1]
[3] %for.body.i {588,651} [2]
[4] %if.end.i {589,616} [3]
[5] %if.end16.i {590,611} [4]
[6] %sw.epilog.i {591,594} [5]
[7] %if.then45.i {592,593} [6]
[6] %sw.bb.i {595,596} [5]
[6] %sw.bb23.i {597,600} [5]
[7] %if.end33.i {598,599} [6]
[6] %sw.bb34.i {601,604} [5]
[7] %if.then37.i {602,603} [6]
[6] %sw.bb39.i {605,610} [5]
[7] %if.end43.i {606,607} [6]
[7] %calc_stack.exit.loopexit {608,609} [6]
[5] %if.then8.i {612,615} [4]
[6] %if.then14.i {613,614} [5]
[4] %for.inc.i {617,650} [3]
[5] %for.end.i {618,649} [4]
[6] %if.end51.i {619,648} [5]
[7] %if.then54.i {620,647} [6]
[8] %for.end87.i {621,622} [7]
[8] %for.body58.i.preheader {623,646} [7]
[9] %for.body58.i {624,645} [8]
[10] %if.end68.i {625,636} [9]
[11] %sw.bb72.i {626,631} [10]
[12] %if.then75.i {627,628} [11]
[12] %if.end76.i {629,630} [11]
[11] %sw.bb78.i {632,633} [10]
[11] %sw.bb80.i {634,635} [10]
[10] %for.inc85.i {637,640} [9]
[11] %for.end87.i.loopexit {638,639} [10]
[10] %if.then60.i {641,644} [9]
[11] %if.then66.i {642,643} [10]
Roots: %entry
Freshly computed tree:
=============================--------------------------------
Inorder Dominator Tree: DFSNumbers invalid: 0 slow queries.
[1] %entry {4294967295,4294967295} [0]
[2] %if.end51.thread.i {4294967295,4294967295} [1]
[2] %calc_stack.exit {4294967295,4294967295} [1]
[3] %if.then {4294967295,4294967295} [2]
[4] %sw.default {4294967295,4294967295} [3]
[4] %sw.epilog {4294967295,4294967295} [3]
[4] %sw.bb {4294967295,4294967295} [3]
[4] %sw.bb2 {4294967295,4294967295} [3]
[3] %cleanup {4294967295,4294967295} [2]
[3] %if.end {4294967295,4294967295} [2]
[4] %if.then3 {4294967295,4294967295} [3]
[4] %if.end4 {4294967295,4294967295} [3]
[5] %if.then.i {4294967295,4294967295} [4]
[5] %predicate_parse.exit {4294967295,4294967295} [4]
[6] %if.then7 {4294967295,4294967295} [5]
[6] %do.body {4294967295,4294967295} [5]
[5] %if.end.i48 {4294967295,4294967295} [4]
[6] %if.end6.i {4294967295,4294967295} [5]
[7] %if.then10.i {4294967295,4294967295} [6]
[7] %if.end11.i {4294967295,4294967295} [6]
[8] %if.end130.thread.i {4294967295,4294967295} [7]
[8] %if.then132.i {4294967295,4294967295} [7]
[8] %while.body.lr.ph.i {4294967295,4294967295} [7]
[9] %while.body.i {4294967295,4294967295} [8]
[10] %if.end17.i {4294967295,4294967295} [9]
[11] %sw.epilog.i54 {4294967295,4294967295} [10]
[12] %if.end37.i {4294967295,4294967295} [11]
[13] %while.end.i.i {4294967295,4294967295} [12]
[14] %while.cond5.i.i {4294967295,4294967295} [13]
[15] %lor.rhs.i.i {4294967295,4294967295} [14]
[15] %while.body20.i.i {4294967295,4294967295} [14]
[16] %lor.rhs.i.i.1 {4294967295,4294967295} [15]
[16] %while.body20.i.i.1 {4294967295,4294967295} [15]
[16] %while.body20.critedge.i.i.1 {4294967295,4294967295} [15]
[15] %while.end22.i.i {4294967295,4294967295} [14]
[16] %if.then.i.i {4294967295,4294967295} [15]
[16] %parse_pred.exit.i {4294967295,4294967295} [15]
[17] %if.then52.i {4294967295,4294967295} [16]
[17] %if.end53.i {4294967295,4294967295} [16]
[18] %while.cond54.outer.i {4294967295,4294967295} [17]
[19] %while.cond54.i.peel.begin {4294967295,4294967295} [18]
[20] %while.cond54.i.peel {4294967295,4294967295} [19]
[21] %if.end65.i {4294967295,4294967295} [20]
[22] %sw.default.i {4294967295,4294967295} [21]
[22] %sw.epilog82.i {4294967295,4294967295} [21]
[23] %if.end89.i {4294967295,4294967295} [22]
[24] %if.then93.i {4294967295,4294967295} [23]
[24] %while.end.i {4294967295,4294967295} [23]
[24] %if.end94.i {4294967295,4294967295} [23]
[25] %if.end103.i {4294967295,4294967295} [24]
[26] %if.then107.i {4294967295,4294967295} [25]
[26] %if.end109.i {4294967295,4294967295} [25]
[27] %cleanup.thread32.i {4294967295,4294967295} [26]
[27] %if.end112.i {4294967295,4294967295} [26]
[28] %if.then115.i {4294967295,4294967295} [27]
[28] %if.end120.i {4294967295,4294967295} [27]
[25] %if.then97.i {4294967295,4294967295} [24]
[23] %if.then86.i {4294967295,4294967295} [22]
[22] %sw.bb68.i {4294967295,4294967295} [21]
[23] %if.then75.i57 {4294967295,4294967295} [22]
[21] %while.cond54.i.peel.next {4294967295,4294967295} [20]
[22] %while.cond54.i.peel.next342 {4294967295,4294967295} [21]
[23] %while.cond54.outer.i.peel.newph {4294967295,4294967295} [22]
[24] %while.cond54.i {4294967295,4294967295} [23]
[16] %if.end.i.i {4294967295,4294967295} [15]
[17] %if.then26.i.i {4294967295,4294967295} [16]
[17] %if.end27.i.i {4294967295,4294967295} [16]
[18] %if.then30.i.i {4294967295,4294967295} [17]
[18] %while.cond32.preheader.i.i {4294967295,4294967295} [17]
[19] %while.end44.i.i {4294967295,4294967295} [18]
[20] %for.body.i.i {4294967295,4294967295} [19]
[21] %if.end66.i.i {4294967295,4294967295} [20]
[22] %kzalloc.exit.i.i {4294967295,4294967295} [21]
[23] %if.then88.i.i {4294967295,4294967295} [22]
[23] %if.end89.i.i {4294967295,4294967295} [22]
[24] %if.then94.i.i {4294967295,4294967295} [23]
[25] %if.end100.i.i {4294967295,4294967295} [24]
[26] %if.then111.i.i {4294967295,4294967295} [25]
[26] %if.end114.i.i {4294967295,4294967295} [25]
[27] %for.end154.i.i {4294967295,4294967295} [26]
[27] %if.end158.i.i {4294967295,4294967295} [26]
[28] %if.then162.i.i {4294967295,4294967295} [27]
[28] %if.end164.i.i {4294967295,4294967295} [27]
[27] %if.end158.i.i.sink.split {4294967295,4294967295} [26]
[27] %for.body120.lr.ph.i.i {4294967295,4294967295} [26]
[28] %for.body120.i.i {4294967295,4294967295} [27]
[29] %land.lhs.true132.i.i {4294967295,4294967295} [28]
[30] %if.end158.i.i.sink.split.loopexit {4294967295,4294967295} [29]
[30] %lor.lhs.false138.i.i {4294967295,4294967295} [29]
[31] %lor.lhs.false144.i.i {4294967295,4294967295} [30]
[29] %for.inc152.i.i {4294967295,4294967295} [28]
[30] %for.end154.i.i.loopexit {4294967295,4294967295} [29]
[29] %land.lhs.true.i.i {4294967295,4294967295} [28]
[30] %for.end154.thread593.i.i {4294967295,4294967295} [29]
[30] %if.end130.i.i {4294967295,4294967295} [29]
[26] %lor.lhs.false.i.i {4294967295,4294967295} [25]
[27] %if.else.i.i {4294967295,4294967295} [26]
[25] %if.then98.i.i {4294967295,4294967295} [24]
[24] %if.end355.i.i {4294967295,4294967295} [23]
[24] %if.else175.i.i {4294967295,4294967295} [23]
[25] %if.then187.i.i {4294967295,4294967295} [24]
[26] %sw.default.i.i {4294967295,4294967295} [25]
[26] %cleanup.thread.i.i {4294967295,4294967295} [25]
[26] %sw.bb.i.i {4294967295,4294967295} [25]
[26] %sw.epilog.i.i {4294967295,4294967295} [25]
[27] %is_string_field.exit591.thread.i.i {4294967295,4294967295} [26]
[27] %if.end196.i.i {4294967295,4294967295} [26]
[28] %for.end213.i.i {4294967295,4294967295} [27]
[29] %if.then217.i.i {4294967295,4294967295} [28]
[29] %if.end219.i.i {4294967295,4294967295} [28]
[30] %if.then224.i.i {4294967295,4294967295} [29]
[30] %if.end226.i.i {4294967295,4294967295} [29]
[31] %if.then.i.i.i {4294967295,4294967295} [30]
[32] %if.then.i.i.i.i {4294967295,4294967295} [31]
[32] %if.end.i.i.i.i {4294967295,4294967295} [31]
[33] %land.rhs.i.i.i.i.i {4294967295,4294967295} [32]
[34] %if.then4.i.i.i.i {4294967295,4294967295} [33]
[33] %if.end5.i.i.i.i {4294967295,4294967295} [32]
[34] %for.body.preheader.i.i.i.i {4294967295,4294967295} [33]
[35] %for.body.i.i.i.i {4294967295,4294967295} [34]
[36] %if.then12.i.i.i.i {4294967295,4294967295} [35]
[37] %if.then14.i.i.i.i {4294967295,4294967295} [36]
[37] %if.else15.i.i.i.i {4294967295,4294967295} [36]
[38] %if.then18.i.i.i.i {4294967295,4294967295} [37]
[39] %if.then21.i.i.i.i {4294967295,4294967295} [38]
[39] %if.end23.i.i.i.i {4294967295,4294967295} [38]
[39] %if.else22.i.i.i.i {4294967295,4294967295} [38]
[38] %if.else26.i.i.i.i {4294967295,4294967295} [37]
[36] %for.inc.i.i.i.i {4294967295,4294967295} [35]
[37] %for.end.i.i.i.i.loopexit {4294967295,4294967295} [36]
[36] %if.else28.i.i.i.i {4294967295,4294967295} [35]
[37] %if.then34.i.i.i.i {4294967295,4294967295} [36]
[34] %for.end.i.i.i.i {4294967295,4294967295} [33]
[35] %if.then41.i.i.i.i {4294967295,4294967295} [34]
[35] %if.end42.i.i.i.i {4294967295,4294967295} [34]
[33] %if.end.i.i.i {4294967295,4294967295} [32]
[34] %sw.bb8.i.i.i {4294967295,4294967295} [33]
[34] %sw.bb10.i.i.i {4294967295,4294967295} [33]
[34] %sw.bb12.i.i.i {4294967295,4294967295} [33]
[34] %sw.bb14.i.i.i {4294967295,4294967295} [33]
[33] %if.end5.critedge.i.i.i.i {4294967295,4294967295} [32]
[32] %if.else.i.i.i.i {4294967295,4294967295} [31]
[31] %filter_build_regex.exit.i.i {4294967295,4294967295} [30]
[32] %if.then242.i.i {4294967295,4294967295} [31]
[32] %cleanup.i.i {4294967295,4294967295} [31]
[32] %if.else244.i.i {4294967295,4294967295} [31]
[33] %if.then248.i.i {4294967295,4294967295} [32]
[33] %if.else251.i.i {4294967295,4294967295} [32]
[34] %if.then255.i.i {4294967295,4294967295} [33]
[34] %if.else257.i.i {4294967295,4294967295} [33]
[31] %sw.bb.i.i.i {4294967295,4294967295} [30]
[31] %filter_build_regex.exit.i.i.sink.split {4294967295,4294967295} [30]
[31] %if.end.thread.i.i.i {4294967295,4294967295} [30]
[28] %for.body202.i.preheader.i {4294967295,4294967295} [27]
[29] %for.inc211.i.i.preheader {4294967295,4294967295} [28]
[30] %for.inc211.i.i {4294967295,4294967295} [29]
[31] %for.end213.i.i.loopexit {4294967295,4294967295} [30]
[31] %for.body202.i.i {4294967295,4294967295} [30]
[32] %for.inc211.i.i.1 {4294967295,4294967295} [31]
[33] %for.body202.i.i.1 {4294967295,4294967295} [32]
[34] %for.inc211.i.i.2 {4294967295,4294967295} [33]
[35] %for.body202.i.i.2 {4294967295,4294967295} [34]
[36] %for.inc211.i.i.3 {4294967295,4294967295} [35]
[37] %for.body202.i.i.3 {4294967295,4294967295} [36]
[27] %lor.lhs.false.i586.i.i {4294967295,4294967295} [26]
[28] %lor.lhs.false3.i588.i.i {4294967295,4294967295} [27]
[29] %is_string_field.exit591.i.i {4294967295,4294967295} [28]
[30] %if.then194.i.i {4294967295,4294967295} [29]
[25] %lor.lhs.false181.i.i {4294967295,4294967295} [24]
[26] %if.else263.i.i {4294967295,4294967295} [25]
[27] %land.rhs.i.i.i {4294967295,4294967295} [26]
[27] %isdigit.exit.i.i {4294967295,4294967295} [26]
[28] %lor.lhs.false269.i.i {4294967295,4294967295} [27]
[29] %if.else351.i.i {4294967295,4294967295} [28]
[28] %if.then275.i.i {4294967295,4294967295} [27]
[29] %is_string_field.exit.thread.i.i {4294967295,4294967295} [28]
[29] %if.then277.i.i {4294967295,4294967295} [28]
[29] %lor.lhs.false.i.i.i {4294967295,4294967295} [28]
[30] %lor.lhs.false3.i.i.i {4294967295,4294967295} [29]
[31] %is_string_field.exit.i.i {4294967295,4294967295} [30]
[32] %if.end279.i.i {4294967295,4294967295} [31]
[33] %if.then282.i.i {4294967295,4294967295} [32]
[33] %if.end284.i.i {4294967295,4294967295} [32]
[34] %if.then290.i.i {4294967295,4294967295} [33]
[34] %if.end292.i.i {4294967295,4294967295} [33]
[35] %while.end305.i.i {4294967295,4294967295} [34]
[36] %if.then310.i.i {4294967295,4294967295} [35]
[36] %if.end312.i.i {4294967295,4294967295} [35]
[37] %if.else324.i.i {4294967295,4294967295} [36]
[37] %if.end327.i.i {4294967295,4294967295} [36]
[38] %if.end331.i.i {4294967295,4294967295} [37]
[39] %if.then336.i.i {4294967295,4294967295} [38]
[39] %if.else338.i.i {4294967295,4294967295} [38]
[40] %sw.epilog.i.i.i {4294967295,4294967295} [39]
[41] %sw.epilog107.i.i.i {4294967295,4294967295} [40]
[41] %sw.bb54.i.i.i {4294967295,4294967295} [40]
[42] %if.then57.i.i.i {4294967295,4294967295} [41]
[42] %if.else.i.i.i {4294967295,4294967295} [41]
[43] %if.else60.i.i.i {4294967295,4294967295} [42]
[43] %if.then59.i.i.i {4294967295,4294967295} [42]
[41] %sw.bb65.i.i.i {4294967295,4294967295} [40]
[42] %if.then68.i.i.i {4294967295,4294967295} [41]
[42] %if.else69.i.i.i {4294967295,4294967295} [41]
[43] %if.else74.i.i.i {4294967295,4294967295} [42]
[43] %if.then71.i.i.i {4294967295,4294967295} [42]
[41] %sw.bb79.i.i.i {4294967295,4294967295} [40]
[42] %if.then82.i.i.i {4294967295,4294967295} [41]
[42] %if.else83.i.i.i {4294967295,4294967295} [41]
[43] %if.else88.i.i.i {4294967295,4294967295} [42]
[43] %if.then85.i.i.i {4294967295,4294967295} [42]
[41] %sw.bb93.i.i.i {4294967295,4294967295} [40]
[42] %if.then96.i.i.i {4294967295,4294967295} [41]
[42] %if.else97.i.i.i {4294967295,4294967295} [41]
[43] %if.else102.i.i.i {4294967295,4294967295} [42]
[43] %if.then99.i.i.i {4294967295,4294967295} [42]
[40] %select_comparison_fn.exit.i.i {4294967295,4294967295} [39]
[41] %if.then347.i.i {4294967295,4294967295} [40]
[40] %sw.default.i.i.i {4294967295,4294967295} [39]
[41] %do.body7.i.i.i {4294967295,4294967295} [40]
[41] %if.end19.critedge.i.i.i {4294967295,4294967295} [40]
[42] %do.body37.i.i.i {4294967295,4294967295} [41]
[42] %sw.epilog.critedge.i.i.i {4294967295,4294967295} [41]
[38] %if.then329.i.i {4294967295,4294967295} [37]
[37] %if.then321.i.i {4294967295,4294967295} [36]
[35] %while.body303.i.i.preheader {4294967295,4294967295} [34]
[36] %while.body303.i.i {4294967295,4294967295} [35]
[37] %while.end305.i.i.loopexit {4294967295,4294967295} [36]
[37] %while.body303.i.i.1 {4294967295,4294967295} [36]
[38] %while.body303.i.i.2 {4294967295,4294967295} [37]
[39] %while.body303.i.i.3 {4294967295,4294967295} [38]
[22] %while.body83.i.i.preheader {4294967295,4294967295} [21]
[23] %while.body83.i.i {4294967295,4294967295} [22]
[24] %kzalloc.exit.i.i.loopexit {4294967295,4294967295} [23]
[24] %while.body83.i.i.1 {4294967295,4294967295} [23]
[25] %while.body83.i.i.2 {4294967295,4294967295} [24]
[26] %while.body83.i.i.3 {4294967295,4294967295} [25]
[21] %err_free.i.i {4294967295,4294967295} [20]
[21] %for.inc.i.i {4294967295,4294967295} [20]
[22] %if.then64.i.i {4294967295,4294967295} [21]
[19] %while.body42.i.i.preheader {4294967295,4294967295} [18]
[20] %while.body42.i.i {4294967295,4294967295} [19]
[21] %while.end44.i.i.loopexit {4294967295,4294967295} [20]
[21] %while.body42.i.i.1 {4294967295,4294967295} [20]
[22] %while.body42.i.i.2 {4294967295,4294967295} [21]
[23] %while.body42.i.i.3 {4294967295,4294967295} [22]
[15] %while.body20.critedge.i.i {4294967295,4294967295} [14]
[13] %while.body.i.i.preheader {4294967295,4294967295} [12]
[14] %while.body.i.i {4294967295,4294967295} [13]
[15] %while.end.i.i.loopexit {4294967295,4294967295} [14]
[15] %while.body.i.i.1 {4294967295,4294967295} [14]
[16] %while.body.i.i.2 {4294967295,4294967295} [15]
[17] %while.body.i.i.3 {4294967295,4294967295} [16]
[12] %if.then32.i {4294967295,4294967295} [11]
[11] %cleanup.thread.i {4294967295,4294967295} [10]
[11] %sw.bb.i52 {4294967295,4294967295} [10]
[12] %if.then22.i {4294967295,4294967295} [11]
[12] %if.end23.i {4294967295,4294967295} [11]
[11] %sw.bb25.i {4294967295,4294967295} [10]
[12] %if.end28.i {4294967295,4294967295} [11]
[12] %is_not.exit.i {4294967295,4294967295} [11]
[10] %cleanup.i58 {4294967295,4294967295} [9]
[11] %out.i.loopexit {4294967295,4294967295} [10]
[10] %out.i {4294967295,4294967295} [9]
[11] %if.end130.i {4294967295,4294967295} [10]
[12] %if.end130.i.if.then132.i_crit_edge {4294967295,4294967295} [11]
[12] %if.end137.i {4294967295,4294967295} [11]
[13] %for.end.i61 {4294967295,4294967295} [12]
[14] %for.body184.preheader.i {4294967295,4294967295} [13]
[15] %for.body184.i {4294967295,4294967295} [14]
[16] %for.inc.critedge.i {4294967295,4294967295} [15]
[17] %for.end237.i.loopexit {4294967295,4294967295} [16]
[17] %for.body184.i.1 {4294967295,4294967295} [16]
[18] %for.inc.critedge.i.1 {4294967295,4294967295} [17]
[16] %do.body219.i {4294967295,4294967295} [15]
[14] %for.end237.i {4294967295,4294967295} [13]
[13] %for.body.preheader.i {4294967295,4294967295} [12]
[14] %for.body.i59.prol.preheader {4294967295,4294967295} [13]
[15] %for.body.i59.prol {4294967295,4294967295} [14]
[16] %if.then173.i.prol {4294967295,4294967295} [15]
[16] %if.end180.i.prol {4294967295,4294967295} [15]
[14] %for.body.i59.prol.loopexit {4294967295,4294967295} [13]
[15] %for.end.i61.loopexit {4294967295,4294967295} [14]
[15] %for.body.preheader.i.new {4294967295,4294967295} [14]
[16] %for.body.i59 {4294967295,4294967295} [15]
[17] %if.then173.i {4294967295,4294967295} [16]
[17] %if.end180.i {4294967295,4294967295} [16]
[18] %if.then173.i.1 {4294967295,4294967295} [17]
[18] %if.end180.i.1 {4294967295,4294967295} [17]
[19] %for.end.i61.loopexit.unr-lcssa {4294967295,4294967295} [18]
[11] %if.then125.i {4294967295,4294967295} [10]
[10] %if.then16.i {4294967295,4294967295} [9]
[6] %out_free.i {4294967295,4294967295} [5]
[7] %if.then239.i {4294967295,4294967295} [6]
[8] %for.end251.i {4294967295,4294967295} [7]
[8] %for.body245.i.preheader {4294967295,4294967295} [7]
[9] %for.body245.i {4294967295,4294967295} [8]
[10] %for.end251.i.loopexit {4294967295,4294967295} [9]
[7] %if.end252.i {4294967295,4294967295} [6]
[6] %if.then5.i {4294967295,4294967295} [5]
[2] %for.body.i.preheader {4294967295,4294967295} [1]
[3] %for.body.i {4294967295,4294967295} [2]
[4] %if.end.i {4294967295,4294967295} [3]
[5] %if.end16.i {4294967295,4294967295} [4]
[6] %sw.epilog.i {4294967295,4294967295} [5]
[7] %if.then45.i {4294967295,4294967295} [6]
[6] %sw.bb.i {4294967295,4294967295} [5]
[6] %sw.bb23.i {4294967295,4294967295} [5]
[7] %if.end33.i {4294967295,4294967295} [6]
[6] %sw.bb34.i {4294967295,4294967295} [5]
[7] %if.then37.i {4294967295,4294967295} [6]
[6] %sw.bb39.i {4294967295,4294967295} [5]
[7] %calc_stack.exit.loopexit {4294967295,4294967295} [6]
[7] %if.end43.i {4294967295,4294967295} [6]
[5] %if.then8.i {4294967295,4294967295} [4]
[6] %if.then14.i {4294967295,4294967295} [5]
[4] %for.inc.i {4294967295,4294967295} [3]
[5] %for.end.i {4294967295,4294967295} [4]
[6] %if.end51.i {4294967295,4294967295} [5]
[7] %if.then54.i {4294967295,4294967295} [6]
[8] %for.end87.i {4294967295,4294967295} [7]
[8] %for.body58.i.preheader {4294967295,4294967295} [7]
[9] %for.body58.i {4294967295,4294967295} [8]
[10] %if.end68.i {4294967295,4294967295} [9]
[11] %sw.bb72.i {4294967295,4294967295} [10]
[12] %if.then75.i {4294967295,4294967295} [11]
[12] %if.end76.i {4294967295,4294967295} [11]
[11] %sw.bb78.i {4294967295,4294967295} [10]
[11] %sw.bb80.i {4294967295,4294967295} [10]
[10] %for.inc85.i {4294967295,4294967295} [9]
[11] %for.end87.i.loopexit {4294967295,4294967295} [10]
[10] %if.then60.i {4294967295,4294967295} [9]
[11] %if.then66.i {4294967295,4294967295} [10]
Roots: %entry
clang-11: /home/nathan/cbl/git/tc-build/llvm-project/llvm/lib/Transforms/Utils/LoopUnrollPeel.cpp:789: bool llvm::peelLoop(llvm::Loop *, unsigned int, llvm::LoopInfo *, llvm::ScalarEvolution *, llvm::DominatorTree *, llvm::AssumptionCache *, bool): Assertion `DT->verify(DominatorTree::VerificationLevel::Fast)' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11 -cc1 -triple s390x-unknown-linux-gnu -S -disable-free -main-file-name trace_events_filter.c -mrelocation-model pic -pic-level 2 -pic-is-pie -mthread-model posix -fno-delete-null-pointer-checks -mllvm -warn-stack-size=2048 -mframe-pointer=none -relaxed-aliasing -fmath-errno -fno-rounding-math -no-integrated-as -mconstructor-aliases -target-cpu z196 -target-feature +soft-float -mbackchain -mpacked-stack -msoft-float -mfloat-abi soft -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -femit-coverage-notes -femit-coverage-data -coverage-notes-file /home/nathan/src/linux/out/s390/kernel/trace/trace_events_filter.gcno -coverage-data-file /home/nathan/src/linux/out/s390/kernel/trace/trace_events_filter.gcda -nostdsysteminc -nobuiltininc -resource-dir /home/nathan/cbl/git/tc-build/build/llvm/stage1/lib/clang/11.0.0 -dependency-file kernel/trace/.trace_events_filter.o.d -MT kernel/trace/trace_events_filter.o -sys-header-deps -isystem /home/nathan/cbl/git/tc-build/build/llvm/stage1/lib/clang/11.0.0/include -include /home/nathan/src/linux/include/linux/kconfig.h -include /home/nathan/src/linux/include/linux/compiler_types.h -I /home/nathan/src/linux/arch/s390/include -I ./arch/s390/include/generated -I /home/nathan/src/linux/include -I ./include -I /home/nathan/src/linux/arch/s390/include/uapi -I ./arch/s390/include/generated/uapi -I /home/nathan/src/linux/include/uapi -I ./include/generated/uapi -D __KERNEL__ -D __PACK_STACK -D CONFIG_AS_CFI_VAL_OFFSET=1 -D CC_USING_NOP_MCOUNT -D CC_USING_FENTRY -I kernel/trace -I /home/nathan/src/linux/kernel/trace -I ./kernel/trace -D KBUILD_MODFILE="kernel/trace/trace_events_filter" -D KBUILD_BASENAME="trace_events_filter" -D KBUILD_MODNAME="trace_events_filter" -fmacro-prefix-map=/home/nathan/src/linux/= -O2 -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security -Werror=unknown-warning-option -Wno-sign-compare -Wno-frame-address -Wno-address-of-packed-member -Wno-format-invalid-specifier -Wno-gnu -Wno-unused-const-variable -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wno-array-bounds -Werror=date-time -Werror=incompatible-pointer-types -Wno-initializer-overrides -Wno-format -Wno-sign-compare -Wno-format-zero-length -Wno-pointer-to-enum-cast -Wno-tautological-constant-out-of-range-compare -std=gnu89 -fno-dwarf-directory-asm -fdebug-compilation-dir /home/nathan/src/linux/out/s390 -ferror-limit 19 -fsanitize-coverage-type=3 -fsanitize-coverage-trace-cmp -fsanitize-coverage-trace-pc -fsanitize=kernel-address -fsanitize-recover=kernel-address -fwrapv -ftrivial-auto-var-init=pattern -fno-signed-char -fwchar-type=short -fno-signed-wchar -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -mllvm -asan-mapping-offset=0x18000000000000 -mllvm -asan-globals=1 -mllvm -asan-instrumentation-with-call-threshold=0 -mllvm -asan-stack=0 -o /tmp/trace_events_filter-5be1c3.s -x c /home/nathan/src/linux/kernel/trace/trace_events_filter.c
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'Function Pass Manager' on module '/home/nathan/src/linux/kernel/trace/trace_events_filter.c'.
4. Running pass 'Loop Pass Manager' on function '@process_preds'
5. Running pass 'Unroll loops' on basic block '%while.cond54.i'
#0 0x0000000003537614 PrintStackTraceSignalHandler(void*) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3537614)
#1 0x000000000353532e llvm::sys::RunSignalHandlers() (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x353532e)
#2 0x0000000003537925 SignalHandler(int) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3537925)
#3 0x00007f1dfa9c43c0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#4 0x00007f1dfa48918b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4618b)
#5 0x00007f1dfa468859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x25859)
#6 0x00007f1dfa468729 (/lib/x86_64-linux-gnu/libc.so.6+0x25729)
#7 0x00007f1dfa479f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
#8 0x00000000035cf09e llvm::peelLoop(llvm::Loop*, unsigned int, llvm::LoopInfo*, llvm::ScalarEvolution*, llvm::DominatorTree*, llvm::AssumptionCache*, bool) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x35cf09e)
#9 0x00000000035bb045 llvm::UnrollLoop(llvm::Loop*, llvm::UnrollLoopOptions, llvm::LoopInfo*, llvm::ScalarEvolution*, llvm::DominatorTree*, llvm::AssumptionCache*, llvm::TargetTransformInfo const*, llvm::OptimizationRemarkEmitter*, bool, llvm::Loop**) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x35bb045)
#10 0x00000000033ba3ac tryToUnrollLoop(llvm::Loop*, llvm::DominatorTree&, llvm::LoopInfo*, llvm::ScalarEvolution&, llvm::TargetTransformInfo const&, llvm::AssumptionCache&, llvm::OptimizationRemarkEmitter&, llvm::BlockFrequencyInfo*, llvm::ProfileSummaryInfo*, bool, int, bool, bool, llvm::Optional<unsigned int>, llvm::Optional<unsigned int>, llvm::Optional<bool>, llvm::Optional<bool>, llvm::Optional<bool>, llvm::Optional<bool>, llvm::Optional<bool>, llvm::Optional<unsigned int>) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x33ba3ac)
#11 0x00000000033bd4fd (anonymous namespace)::LoopUnroll::runOnLoop(llvm::Loop*, llvm::LPPassManager&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x33bd4fd)
#12 0x0000000002915cd0 llvm::LPPassManager::runOnFunction(llvm::Function&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x2915cd0)
#13 0x0000000002f037e4 llvm::FPPassManager::runOnFunction(llvm::Function&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x2f037e4)
#14 0x0000000002f03ae8 llvm::FPPassManager::runOnModule(llvm::Module&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x2f03ae8)
#15 0x0000000002f04214 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x2f04214)
#16 0x00000000037377fa clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x37377fa)
#17 0x0000000003f080ed clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3f080ed)
#18 0x00000000047b4a73 clang::ParseAST(clang::Sema&, bool, bool) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x47b4a73)
#19 0x0000000003e6e2d0 clang::FrontendAction::Execute() (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3e6e2d0)
#20 0x0000000003dcce53 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3dcce53)
#21 0x0000000003f02924 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x3f02924)
#22 0x0000000001e97281 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x1e97281)
#23 0x0000000001e9537c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x1e9537c)
#24 0x0000000001e950df main (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x1e950df)
#25 0x00007f1dfa46a0b3 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b3)
#26 0x0000000001e9217e _start (/home/nathan/cbl/git/tc-build/build/llvm/stage1/bin/clang-11+0x1e9217e)
clang-11: error: unable to execute command: Aborted
clang-11: error: clang frontend command failed due to signal (use -v to see invocation)
ClangBuiltLinux clang version 11.0.0 (https://github.com/llvm/llvm-project c2bb26d8613338b93a1aab54631d01e6a690bc29)
Target: s390x-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/nathan/cbl/git/tc-build/build/llvm/stage1/bin
Reduction spits out:
a, b, c;
d() {
while (c)
;
while (a || b)
;
}
Files are here: https://github.com/nathanchance/creduce-files/tree/3bfd987920d1d9128f6d17bce4d72250993a6887/1bc73b02d6934c8586ca5740da416b7094c3c471
Sorry, I've been rather swamped with other stuff so I wasn't able to bisect the compiler flags beyond just removing the warning ones. Happy to provide whatever information you need to look into this further.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D80477/new/
https://reviews.llvm.org/D80477
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