 12-check_regression/baseline.xfail      | 256 ++++++++++++++++++++++++++++++++
 12-check_regression/console.log.xz      | Bin 0 -> 6104 bytes
 12-check_regression/extra-bisect-params |   1 +
 12-check_regression/fails.sum           |  25 ++++
 12-check_regression/flaky.xfail         | 236 +++++++++++++++++++++++++++++
 12-check_regression/results.regressions |   1 +
 12-check_regression/trigger-bisect      |   3 +
 README.html                             |  46 +-----
 README.txt                              |  44 +-----
 results                                 |   1 +
 sumfiles/xfails.xfail                   |   2 +
 11 files changed, 530 insertions(+), 85 deletions(-)

diff --git a/12-check_regression/baseline.xfail b/12-check_regression/baseline.xfail
new file mode 100644
index 00000000..c0f297a0
--- /dev/null
+++ b/12-check_regression/baseline.xfail
@@ -0,0 +1,256 @@
+		=== g++ tests ===
+
+Running g++:g++.dg/analyzer/analyzer.exp ...
+FAIL: c-c++-common/analyzer/fileno-1.c -std=c++14 (test for excess errors)
+FAIL: c-c++-common/analyzer/fileno-1.c -std=c++17 (test for excess errors)
+FAIL: c-c++-common/analyzer/fileno-1.c -std=c++20 (test for excess errors)
+FAIL: c-c++-common/analyzer/fileno-1.c -std=c++98 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++14  (test for bogus messages, line 1211)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++14  (test for bogus messages, line 888)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++14  (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++14 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++17  (test for bogus messages, line 1211)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++17  (test for bogus messages, line 888)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++17  (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++17 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++20  (test for bogus messages, line 1211)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++20  (test for bogus messages, line 888)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++20  (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++20 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++98  (test for bogus messages, line 1211)
+XPASS: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++98  (test for bogus messages, line 888)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++98  (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-with-call-summaries.c -std=c++98 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++14  (test for bogus messages, line 889)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++14  at line 882 (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++14 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++17  (test for bogus messages, line 889)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++17  at line 882 (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++17 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++20  (test for bogus messages, line 889)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++20  at line 882 (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++20 (test for excess errors)
+XPASS: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++98  (test for bogus messages, line 889)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++98  at line 882 (test for warnings, line 881)
+FAIL: c-c++-common/analyzer/flex-without-call-summaries.c -std=c++98 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++14  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++14  expected multiline pattern lines 46-61
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++14 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++17  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++17  expected multiline pattern lines 46-61
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++17 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++20  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++20  expected multiline pattern lines 46-61
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++20 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++98  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++98  expected multiline pattern lines 46-61
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c -std=c++98 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++14  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++14  expected multiline pattern lines 19-34
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++14 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++17  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++17  expected multiline pattern lines 19-34
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++17 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++20  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++20  expected multiline pattern lines 19-34
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++20 (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++98  2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++98  expected multiline pattern lines 19-34
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c -std=c++98 (test for excess errors)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  (test for warnings, line 19)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  (test for warnings, line 26)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  (test for warnings, line 34)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  (test for warnings, line 35)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14  at line 12 (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++14 (test for excess errors)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  (test for warnings, line 19)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  (test for warnings, line 26)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  (test for warnings, line 34)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  (test for warnings, line 35)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17  at line 12 (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++17 (test for excess errors)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  (test for warnings, line 19)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  (test for warnings, line 26)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  (test for warnings, line 34)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  (test for warnings, line 35)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20  at line 12 (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++20 (test for excess errors)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  (test for warnings, line 19)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  (test for warnings, line 26)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  (test for warnings, line 34)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  (test for warnings, line 35)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98  at line 12 (test for warnings, line 11)
+FAIL: g++.dg/analyzer/placement-new-size.C -std=c++98 (test for excess errors)
+
+Running g++:g++.dg/dg.exp ...
+FAIL: c-c++-common/pr111309-2.c -std=c++14  (test for errors, line 35)
+FAIL: c-c++-common/pr111309-2.c -std=c++14  (test for errors, line 54)
+FAIL: c-c++-common/pr111309-2.c -std=c++17  (test for errors, line 35)
+FAIL: c-c++-common/pr111309-2.c -std=c++17  (test for errors, line 54)
+FAIL: c-c++-common/pr111309-2.c -std=c++20  (test for errors, line 35)
+FAIL: c-c++-common/pr111309-2.c -std=c++20  (test for errors, line 54)
+FAIL: c-c++-common/pr111309-2.c -std=c++98  (test for errors, line 35)
+FAIL: c-c++-common/pr111309-2.c -std=c++98  (test for errors, line 54)
+FAIL: g++.dg/contracts/contracts-ctor-dtor2.C (test for errors, line 23)
+FAIL: g++.dg/contracts/contracts-ctor-dtor2.C (test for errors, line 27)
+FAIL: g++.dg/contracts/contracts-tmpl-spec2.C output pattern test
+FAIL: g++.dg/cpp2a/decomp2.C -std=gnu++14 (test for excess errors)
+UNRESOLVED: g++.dg/cpp2a/decomp2.C -std=gnu++14 compilation failed to produce executable
+FAIL: g++.dg/cpp2a/decomp2.C -std=gnu++17 (test for excess errors)
+UNRESOLVED: g++.dg/cpp2a/decomp2.C -std=gnu++17 compilation failed to produce executable
+FAIL: g++.dg/cpp2a/decomp2.C -std=gnu++20 (test for excess errors)
+UNRESOLVED: g++.dg/cpp2a/decomp2.C -std=gnu++20 compilation failed to produce executable
+FAIL: g++.dg/opt/pr97315-1.C -std=gnu++14 (test for excess errors)
+FAIL: g++.dg/opt/pr97315-1.C -std=gnu++17 (test for excess errors)
+FAIL: g++.dg/opt/pr97315-1.C -std=gnu++20 (test for excess errors)
+FAIL: g++.dg/opt/pr97315-1.C -std=gnu++98 (test for excess errors)
+XPASS: g++.dg/warn/Wstringop-overflow-4.C -std=gnu++98 pr106120 (test for bogus messages, line 144)
+FAIL: g++.dg/warn/Wuse-after-free3.C -std=gnu++14 (test for excess errors)
+FAIL: g++.dg/warn/Wuse-after-free3.C -std=gnu++17 (test for excess errors)
+FAIL: g++.dg/warn/Wuse-after-free3.C -std=gnu++20 (test for excess errors)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++14  (test for warnings, line 18)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++14  (test for warnings, line 22)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++17  (test for warnings, line 18)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++17  (test for warnings, line 22)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++20  (test for warnings, line 18)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++20  (test for warnings, line 22)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++98  (test for warnings, line 18)
+XPASS: g++.dg/warn/pr33738.C -std=gnu++98  (test for warnings, line 22)
+
+Running g++:g++.dg/lto/lto.exp ...
+FAIL: g++.dg/lto/pr65276 cp_lto_pr65276_0.o-cp_lto_pr65276_1.o link, -flto -O0 -std=c++11
+
+Running g++:g++.dg/modules/modules.exp ...
+FAIL: g++.dg/modules/xtreme-header-2_c.C -std=c++2b (test for excess errors)
+FAIL: g++.dg/modules/xtreme-header-5_c.C -std=c++2a (test for excess errors)
+FAIL: g++.dg/modules/xtreme-header-5_c.C -std=c++2b (test for excess errors)
+
+Running g++:g++.dg/tls/tls.exp ...
+FAIL: g++.dg/tls/pr102496-1.C -std=c++14 (test for excess errors)
+FAIL: g++.dg/tls/pr102496-1.C -std=c++17 (test for excess errors)
+FAIL: g++.dg/tls/pr102496-1.C -std=c++20 (test for excess errors)
+FAIL: g++.dg/tls/pr77285-1.C -std=c++14 (test for excess errors)
+FAIL: g++.dg/tls/pr77285-1.C -std=c++17 (test for excess errors)
+FAIL: g++.dg/tls/pr77285-1.C -std=c++20 (test for excess errors)
+
+Running g++:g++.target/arm/arm.exp ...
+XPASS: g++.target/arm/bfloat_cpp_typecheck.C (test for bogus messages, line 10)
+XPASS: g++.target/arm/bfloat_cpp_typecheck.C (test for bogus messages, line 11)
+
+Running g++:g++.target/arm/mve.exp ...
+FAIL: g++.target/arm/mve/general-c++/nomve_fp_1.c (test for errors, line 13)
+FAIL: g++.target/arm/mve/general-c++/nomve_fp_1.c at line 14 (test for warnings, line 13)
+FAIL: g++.target/arm/mve/general-c++/nomve_fp_1.c (test for excess errors)
+		=== gcc tests ===
+
+Running gcc:gcc.dg/analyzer/analyzer.exp ...
+FAIL: c-c++-common/analyzer/null-deref-pr108251-smp_fetch_ssl_fc_has_early-O2.c (test for excess errors)
+FAIL: c-c++-common/analyzer/null-deref-pr108251-smp_fetch_ssl_fc_has_early.c (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c 2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-11.c expected multiline pattern lines 46-61
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c (test for excess errors)
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c 2 blank line(s) in output
+FAIL: c-c++-common/analyzer/out-of-bounds-diagram-8.c expected multiline pattern lines 19-34
+FAIL: gcc.dg/analyzer/out-of-bounds-diagram-10.c (test for excess errors)
+FAIL: gcc.dg/analyzer/out-of-bounds-diagram-10.c 2 blank line(s) in output
+FAIL: gcc.dg/analyzer/out-of-bounds-diagram-10.c expected multiline pattern lines 13-28
+FAIL: gcc.dg/analyzer/switch-enum-1.c (test for bogus messages, line 26)
+FAIL: gcc.dg/analyzer/switch-enum-1.c (test for bogus messages, line 44)
+FAIL: gcc.dg/analyzer/switch-enum-2.c (test for bogus messages, line 34)
+FAIL: gcc.dg/analyzer/switch-enum-2.c (test for bogus messages, line 52)
+
+Running gcc:gcc.dg/analyzer/torture/analyzer-torture.exp ...
+FAIL: gcc.dg/analyzer/torture/switch-enum-pr105273-doom-p_floor.c -O0   (test for bogus messages, line 82)
+FAIL: gcc.dg/analyzer/torture/switch-enum-pr105273-doom-p_maputl.c -O0   (test for bogus messages, line 83)
+
+Running gcc:gcc.dg/dg.exp ...
+FAIL: gcc.dg/Wnonnull-4.c (test for excess errors)
+FAIL: gcc.dg/auto-init-uninit-17.c unconditional (test for warnings, line 14)
+FAIL: gcc.dg/c23-stdarg-4.c execution test
+FAIL: gcc.dg/ira-shrinkwrap-prep-1.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"
+FAIL: gcc.dg/pr55152-2.c scan-tree-dump-times optimized ".COPYSIGN" 1
+FAIL: gcc.dg/pr55152-2.c scan-tree-dump-times optimized "ABS_EXPR" 1
+FAIL: gcc.dg/uninit-17.c unconditional (test for warnings, line 14)
+
+Running gcc:gcc.dg/torture/dg-torture.exp ...
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O0  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O1  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O2  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -O3 -g  execution test
+FAIL: gcc.dg/torture/c23-stdarg-split-1a.c -Os  execution test
+
+Running gcc:gcc.dg/tree-ssa/tree-ssa.exp ...
+FAIL: gcc.dg/tree-ssa/abs-4.c scan-tree-dump-times optimized "= -" 1
+FAIL: gcc.dg/tree-ssa/abs-4.c scan-tree-dump-times optimized "= .COPYSIGN" 2
+FAIL: gcc.dg/tree-ssa/abs-4.c scan-tree-dump-times optimized "= ABS_EXPR" 1
+FAIL: gcc.dg/tree-ssa/backprop-6.c scan-tree-dump-times backprop "Deleting[^\\n]* = -" 4
+FAIL: gcc.dg/tree-ssa/backprop-6.c scan-tree-dump-times backprop "Deleting[^\\n]* = ABS_EXPR <" 1
+FAIL: gcc.dg/tree-ssa/backprop-6.c scan-tree-dump-times backprop "Deleting[^\\n]* = \\.COPYSIGN" 2
+FAIL: gcc.dg/tree-ssa/copy-sign-2.c scan-tree-dump-times optimized ".COPYSIGN" 1
+FAIL: gcc.dg/tree-ssa/copy-sign-2.c scan-tree-dump-times optimized "ABS" 1
+FAIL: gcc.dg/tree-ssa/phi-opt-24.c scan-tree-dump-not phiopt2 "if"
+
+Running gcc:gcc.dg/vect/vect.exp ...
+FAIL: gcc.dg/vect/slp-mask-store-1.c -flto -ffat-lto-objects execution test
+FAIL: gcc.dg/vect/slp-mask-store-1.c execution test
+XPASS: gcc.dg/vect/vect-cond-1.c -flto -ffat-lto-objects  scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+XPASS: gcc.dg/vect/vect-cond-1.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+XPASS: gcc.dg/vect/vect-cond-3.c -flto -ffat-lto-objects  scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+XPASS: gcc.dg/vect/vect-cond-3.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+XPASS: gcc.dg/vect/vect-cond-4.c -flto -ffat-lto-objects  scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+XPASS: gcc.dg/vect/vect-cond-4.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED" 1
+
+Running gcc:gcc.misc-tests/gcov.exp ...
+FAIL: gcc.misc-tests/gcov-pr94029.c gcov failed: spawn failed
+
+Running gcc:gcc.target/arm/arm.exp ...
+FAIL: gcc.target/arm/addr-modes-float.c scan-assembler vst3.8\t{d[02468], d[02468], d[02468]}, \\[r[0-9]+\\]!
+FAIL: gcc.target/arm/bfloat16_scalar_typecheck.c (test for errors, line 45)
+FAIL: gcc.target/arm/bfloat16_scalar_typecheck.c (test for errors, line 97)
+FAIL: gcc.target/arm/fmaxmin.c scan-assembler-times vmaxnm.f32\ts[0-9]+, s[0-9]+, s[0-9]+ 1
+FAIL: gcc.target/arm/fmaxmin.c scan-assembler-times vminnm.f32\ts[0-9]+, s[0-9]+, s[0-9]+ 1
+FAIL: gcc.target/arm/ftest-armv5t-thumb.c (test for excess errors)
+FAIL: gcc.target/arm/ftest-armv5te-thumb.c (test for excess errors)
+FAIL: gcc.target/arm/ftest-armv6-thumb.c (test for excess errors)
+FAIL: gcc.target/arm/ftest-armv6k-thumb.c (test for excess errors)
+FAIL: gcc.target/arm/ftest-armv6z-thumb.c (test for excess errors)
+FAIL: gcc.target/arm/memcpy-aligned-1.c scan-assembler-not ldr\t
+FAIL: gcc.target/arm/memcpy-aligned-1.c scan-assembler-times str\t 1
+FAIL: gcc.target/arm/pr42575.c scan-assembler-not mov
+FAIL: gcc.target/arm/pr45701-1.c scan-assembler push\t{r3
+
+Running gcc:gcc.target/arm/mve/mve.exp ...
+FAIL: gcc.target/arm/mve/pr112337.c (test for excess errors)
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test
+FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++26 execution test
+FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++23 execution test
+FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++26 execution test
+FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++23 execution test
+FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++26 execution test
+FAIL: 22_locale/ctype/scan/wchar_t/1.cc -std=gnu++17 execution test
+FAIL: 27_io/basic_filebuf/underflow/wchar_t/11603.cc -std=gnu++17 execution test
+FAIL: 27_io/basic_fstream/53984.cc -std=gnu++17 execution test
+FAIL: 27_io/objects/wchar_t/12048-1.cc -std=gnu++17 execution test
+FAIL: 27_io/objects/wchar_t/12048-2.cc -std=gnu++17 execution test
+FAIL: 27_io/objects/wchar_t/12048-3.cc -std=gnu++17 execution test
+FAIL: 27_io/objects/wchar_t/12048-4.cc -std=gnu++17 execution test
+XPASS: 27_io/objects/wchar_t/12048-5.cc -std=gnu++17 execution test
+FAIL: 29_atomics/atomic/lock_free_aliases.cc -std=gnu++20 (test for excess errors)
+FAIL: 29_atomics/atomic/lock_free_aliases.cc -std=gnu++26 (test for excess errors)
+XPASS: ext/stdio_filebuf/char/10063-2.cc -std=gnu++17 execution test
+XPASS: ext/stdio_filebuf/char/10063-3.cc -std=gnu++17 execution test
+FAIL: ext/stdio_sync_filebuf/wchar_t/1.cc -std=gnu++17 execution test
+FAIL: ext/stdio_sync_filebuf/wchar_t/12948-1.cc -std=gnu++17 execution test
+FAIL: ext/stdio_sync_filebuf/wchar_t/12948-2.cc -std=gnu++17 execution test
+FAIL: ext/stdio_sync_filebuf/wchar_t/12948-3.cc -std=gnu++17 execution test
+FAIL: ext/stdio_sync_filebuf/wchar_t/12948-4.cc -std=gnu++17 execution test
diff --git a/12-check_regression/console.log.xz b/12-check_regression/console.log.xz
new file mode 100644
index 00000000..a4eae97c
Binary files /dev/null and b/12-check_regression/console.log.xz differ
diff --git a/12-check_regression/extra-bisect-params b/12-check_regression/extra-bisect-params
new file mode 100644
index 00000000..73516e92
--- /dev/null
+++ b/12-check_regression/extra-bisect-params
@@ -0,0 +1 @@
+extra_build_params=++testsuites gcc:gcc.dg/torture/dg-torture.exp 
diff --git a/12-check_regression/fails.sum b/12-check_regression/fails.sum
new file mode 100644
index 00000000..8decf993
--- /dev/null
+++ b/12-check_regression/fails.sum
@@ -0,0 +1,25 @@
+		=== gcc tests ===
+
+Running gcc:gcc.dg/torture/dg-torture.exp ...
+FAIL: gcc.dg/torture/pr112282.c -O0  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O0  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O1  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O1  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O2  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O2  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O2 -flto -fno-use-linker-plugin -flto-partition=none  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -O3 -g  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -O3 -g  compilation failed to produce executable
+FAIL: gcc.dg/torture/pr112282.c -Os  (test for excess errors)
+UNRESOLVED: gcc.dg/torture/pr112282.c -Os  compilation failed to produce executable
+
+		=== Results Summary ===
+
+# of stable fails		235
+# of flaky entries		1
+# of all tests			400834
diff --git a/12-check_regression/flaky.xfail b/12-check_regression/flaky.xfail
new file mode 100644
index 00000000..668267ec
--- /dev/null
+++ b/12-check_regression/flaky.xfail
@@ -0,0 +1,236 @@
+################################
+# Known flaky tests
+
+# From https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/469/:
+		=== gcc tests ===
+
+Running gcc:gcc.c-torture/execute/execute.exp ...
+flaky,expire=20231227 | FAIL: gcc.c-torture/execute/printf-2.c -O2  execution test
+
+		=== Results Summary ===
+
+# From https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/350/:
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 23_containers/map/requirements/exception/propagation_consistent.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/map/requirements/exception/propagation_consistent.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/set/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/set/requirements/exception/basic.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-abi/abi.exp ...
+flaky,expire=20231009 | ERROR: could not compile testsuite_abi.cc
+flaky,expire=20231009 | ERROR: tcl error code NONE
+flaky,expire=20231009 | ERROR: tcl error sourcing libstdc++-abi/abi.exp.
+flaky,expire=20231009 | UNRESOLVED: testcase libstdc++-abi/abi.exp' aborted due to Tcl error
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 17_intro/headers/c++2017/stdc++_multiple_inclusion.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 17_intro/headers/c++2020/all_pedantic_errors.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 17_intro/headers/c++2020/operator_names.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 20_util/duration/io.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 20_util/variant/run.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 20_util/variant/run.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 22_locale/money_get/requirements/explicit_instantiation.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/list/debug/assign4_neg.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/list/debug/assign4_neg.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 23_containers/multiset/requirements/exception/propagation_consistent.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/multiset/requirements/exception/propagation_consistent.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/unordered_map/requirements/debug_container.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_map/requirements/exception/generation_prohibited.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/unordered_map/requirements/exception/generation_prohibited.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/unordered_multimap/requirements/typedefs.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/unordered_multiset/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_multiset/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/unordered_set/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_set/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/vector/ext_pointer/explicit_instantiation/3.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/vector/ext_pointer/modifiers/erase.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/vector/ext_pointer/modifiers/erase.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 27_io/basic_stringstream/cons/wchar_t/1.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 27_io/basic_stringstream/cons/wchar_t/1.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 27_io/filesystem/path/itr/traversal.cc execution test
+flaky,expire=20231009 | FAIL: 27_io/filesystem/path/itr/traversal.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/107376.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/107376.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/basic/string_range_00_03.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/basic/string_range_01_03.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/basic/string_range_01_03.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/basic/string_range_02_03.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/basic/string_range_02_03.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/cstring_bracket_01.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/cstring_bracket_01.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/ecma/char/58576.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/ecma/char/58576.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/ecma/char/61601.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/ecma/char/61601.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/ecma/char/68863.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/ecma/char/68863.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/ecma/char/backref.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/ecma/char/backref.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/ecma/char/empty_range.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/ecma/char/empty_range.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/extended/cstring_questionmark.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/extended/cstring_questionmark.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/extended/string_range_01_03.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/extended/string_range_01_03.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_match/multiline.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_match/multiline.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_replace/char/51711.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/algorithms/regex_replace/char/basic_replace.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/algorithms/regex_replace/char/basic_replace.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/assign/char/pstring.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/assign/wchar_t/cstring_op.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/basic_regex/assign/wchar_t/lwg3296.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/assign/wchar_t/lwg3296.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/assign/wchar_t/range.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/ctors/grammar.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/basic_regex/ctors/grammar.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/basic_regex/ctors/string_wchar_t.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/iterators/regex_iterator/char/string_01.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/iterators/regex_iterator/char/string_01.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 28_regex/iterators/regex_iterator/char/string_position_01.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/iterators/regex_iterator/char/string_position_01.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 28_regex/iterators/regex_token_iterator/wchar_t/string_01.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/iterators/regex_token_iterator/wchar_t/string_01.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/match_results/102667.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/match_results/102667.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/traits/char/icase.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/traits/char/icase.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: experimental/names.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: ext/pb_ds/example/basic_map.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: ext/pb_ds/example/basic_map.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: ext/vstring/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: ext/vstring/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: std/format/functions/107871.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: std/format/functions/format.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: std/format/functions/format_to.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: std/format/functions/format_to.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: std/format/functions/size.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: std/format/functions/size.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: std/format/string.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: std/format/string.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: std/time/hh_mm_ss/io.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: std/time/hh_mm_ss/io.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: std/time/year_month_day/3.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: std/time/year_month_day/3.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== gcc tests ===
+
+Running gcc:gcc.dg/dg.exp ...
+flaky,expire=20231009 | FAIL: gcc.dg/long_branch.c (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: gcc.dg/long_branch.c compilation failed to produce executable
+
+Running gcc:gcc.dg/plugin/plugin.exp ...
+flaky,expire=20231009 | FAIL: gcc.dg/plugin/poly-int-03_plugin.c compilation
+flaky,expire=20231009 | FAIL: gcc.dg/plugin/poly-int-04_plugin.c compilation
+flaky,expire=20231009 | FAIL: gcc.dg/plugin/poly-int-07_plugin.c compilation
+
+Running gcc:gcc.target/aarch64/advsimd-intrinsics/advsimd-intrinsics.exp ...
+flaky,expire=20231009 | UNRESOLVED: gcc.target/aarch64/advsimd-intrinsics/vreinterpret.c -O3 -g  compilation failed to produce executable
+flaky,expire=20231009 | FAIL: gcc.target/aarch64/advsimd-intrinsics/vreinterpret.c -O3 -g  (test for excess errors)
+
+		=== Results Summary ===
+		=== g++ tests ===
+
+Running g++:g++.dg/dg.exp ...
+flaky,expire=20231009 | FAIL: c-c++-common/pr60101.c -std=gnu++98 (test for excess errors)
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 17_intro/headers/c++2020/all_no_rtti.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/forward_list/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/forward_list/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/forward_list/requirements/exception/generation_prohibited.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/forward_list/requirements/exception/generation_prohibited.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/multimap/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/multimap/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | UNRESOLVED: 27_io/filesystem/path/itr/traversal.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 20_util/duration/io.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 23_containers/unordered_multimap/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_multimap/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/vector/ext_pointer/explicit_instantiation/1.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 27_io/filesystem/path/construct/range.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 27_io/filesystem/path/construct/range.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 23_containers/multimap/requirements/exception/generation_prohibited.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/multimap/requirements/exception/generation_prohibited.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/multimap/requirements/exception/propagation_consistent.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/multimap/requirements/exception/propagation_consistent.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/unordered_multimap/requirements/exception/propagation_consistent.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_multimap/requirements/exception/propagation_consistent.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/vector/requirements/exception/generation_prohibited.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/vector/requirements/exception/generation_prohibited.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 28_regex/iterators/regex_token_iterator/lwg3719.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 28_regex/iterators/regex_token_iterator/lwg3719.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 17_intro/headers/c++1998/operator_names.cc (test for excess errors)
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 23_containers/deque/requirements/exception/propagation_consistent.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/deque/requirements/exception/propagation_consistent.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/unordered_map/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/unordered_map/requirements/exception/basic.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 25_algorithms/sort/random_test.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 25_algorithms/sort/random_test.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 27_io/basic_istream/requirements/explicit_instantiation.cc (test for excess errors)
+flaky,expire=20231009 | FAIL: 27_io/filesystem/path/compare/lwg2936.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 27_io/filesystem/path/compare/lwg2936.cc compilation failed to produce executable
+
+		=== Results Summary ===
+		=== libstdc++ tests ===
+
+Running libstdc++:libstdc++-dg/conformance.exp ...
+flaky,expire=20231009 | FAIL: 20_util/to_chars/1.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 20_util/to_chars/1.cc compilation failed to produce executable
+flaky,expire=20231009 | FAIL: 23_containers/deque/requirements/exception/basic.cc (test for excess errors)
+flaky,expire=20231009 | UNRESOLVED: 23_containers/deque/requirements/exception/basic.cc compilation failed to produce executable
+
+		=== Results Summary ===
+
+# From https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/11/:
+		=== gcc tests ===
+
+Running gcc:gcc.dg/dg.exp ...
+flaky,expire=20230717 | UNRESOLVED: c-c++-common/pragma-region.c -Wc++-compat   scan-assembler code_within_named_region
+flaky,expire=20230717 | UNRESOLVED: c-c++-common/pragma-region.c -Wc++-compat   scan-assembler code_within_region
+flaky,expire=20230717 | FAIL: gcc.dg/Woverlength-strings-pedantic-c89-asm.c (test for excess errors)
+flaky,expire=20230717 | FAIL: gcc.dg/Woverlength-strings-pedantic-c90-asm.c (test for excess errors)
+flaky,expire=20230717 | FAIL: gcc.dg/Woverlength-strings-pedantic-c99-asm.c (test for excess errors)
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/ctor1.c scan-assembler-not C\\.0
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/h8300-div-delay-slot.c scan-assembler-not \tbra/s\t.*\n\tdiv*
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/inline-3.c scan-assembler-not big_function_2
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/nrv2.c scan-assembler-not memcpy
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pr25376.c scan-assembler my_named_section
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pr25376.c scan-assembler-symbol-section symbol simple$ has section ^\\.?my_named_section|simple\\[DS\\]|^\\"\\.opd\\"
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pr28402.c scan-assembler-not __[a-z]*si3
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pragma-re-1.c scan-assembler bar
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pragma-re-1.c scan-assembler-not foo
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pragma-re-4.c scan-assembler _foo
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/pragma-re-4.c scan-assembler-not _foo64
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/section1.c scan-assembler-not .bss
+flaky,expire=20230717 | UNRESOLVED: gcc.dg/verbose-asm-2.c scan-assembler total = 0
+
+		=== Results Summary ===
diff --git a/12-check_regression/results.regressions b/12-check_regression/results.regressions
new file mode 100644
index 00000000..630e29f6
--- /dev/null
+++ b/12-check_regression/results.regressions
@@ -0,0 +1 @@
+# 16 regressions
diff --git a/12-check_regression/trigger-bisect b/12-check_regression/trigger-bisect
new file mode 100644
index 00000000..fa9148f2
--- /dev/null
+++ b/12-check_regression/trigger-bisect
@@ -0,0 +1,3 @@
+current_project=gcc
+bad_git=https://github.com/gcc-mirror/gcc.git#5cb8610d3a8f8849a4bb6a0f81a2934484d6a15a
+extra_build_params=++testsuites gcc:gcc.dg/torture/dg-torture.exp 
diff --git a/README.html b/README.html
index eee4d294..158e68c3 100644
--- a/README.html
+++ b/README.html
@@ -11,14 +11,6 @@ the build.  More synthetic information is available in other directories,
 as described below:
 <p>
 <ul>
-<li><a href="00-sumfiles/">00-sumfiles/</a> contains .log and possibly .sum files generated by the
-  build. Files with .0 suffix contain the results of the initial full
-  testsuite run, files with .1, .2 etc... contain logs restricted to
-  the parts (.exp) of the testsuite where we detected regressions.
-  .1, .2, .... represent the number of times this subset of the testsuite
-  was executed in order to also identify flaky tests.  The last one
-  contains what is considered as the results of this build.
-
 <li><a href="git/">git/</a> contains the revision and repository of each toolchain
   component built
 
@@ -40,45 +32,11 @@ interested in:
 <ul>
 <li><a href="notify/regressions.sum/*view*/">notify/regressions.sum</a> and <a href="notify/results.compare.txt/*view*/">notify/results.compare.txt</a> (regression report).
 
-<li><a href="00-sumfiles/">00-sumfiles/</a> .log files with detailed errors, to save
-  yourself reproducing the problem on your machine.
 </ul>
 <p>
 List of files below:
 <p>
 <ul>
-<li><a href="./00-sumfiles/gcc.log.0.xz">./00-sumfiles/gcc.log.0.xz</a>
-<li><a href="./00-sumfiles/gcc.log.1.xz">./00-sumfiles/gcc.log.1.xz</a>
-<li><a href="./00-sumfiles/gcc.sum.0/*view*/">./00-sumfiles/gcc.sum.0</a>
-<li><a href="./00-sumfiles/gcc.sum.1/*view*/">./00-sumfiles/gcc.sum.1</a>
-<li><a href="./00-sumfiles/g++.log.0.xz">./00-sumfiles/g++.log.0.xz</a>
-<li><a href="./00-sumfiles/g++.sum.0/*view*/">./00-sumfiles/g++.sum.0</a>
-<li><a href="./00-sumfiles/libstdc++.log.0.xz">./00-sumfiles/libstdc++.log.0.xz</a>
-<li><a href="./00-sumfiles/libstdc++.sum.0/*view*/">./00-sumfiles/libstdc++.sum.0</a>
-<li><a href="./01-reset_artifacts/console.log.xz">./01-reset_artifacts/console.log.xz</a>
-<li><a href="./02-prepare_abe/console.log.xz">./02-prepare_abe/console.log.xz</a>
-<li><a href="./03-build_abe-binutils/console.log.xz">./03-build_abe-binutils/console.log.xz</a>
-<li><a href="./03-build_abe-binutils/make-binutils.log.xz">./03-build_abe-binutils/make-binutils.log.xz</a>
-<li><a href="./04-build_abe-stage1/console.log.xz">./04-build_abe-stage1/console.log.xz</a>
-<li><a href="./04-build_abe-stage1/make-gcc-stage1.log.xz">./04-build_abe-stage1/make-gcc-stage1.log.xz</a>
-<li><a href="./05-clean_sysroot/console.log.xz">./05-clean_sysroot/console.log.xz</a>
-<li><a href="./06-build_abe-newlib/console.log.xz">./06-build_abe-newlib/console.log.xz</a>
-<li><a href="./06-build_abe-newlib/make-newlib.log.xz">./06-build_abe-newlib/make-newlib.log.xz</a>
-<li><a href="./07-build_abe-stage2/console.log.xz">./07-build_abe-stage2/console.log.xz</a>
-<li><a href="./07-build_abe-stage2/make-gcc-stage2.log.xz">./07-build_abe-stage2/make-gcc-stage2.log.xz</a>
-<li><a href="./08-build_abe-gdb/console.log.xz">./08-build_abe-gdb/console.log.xz</a>
-<li><a href="./08-build_abe-gdb/make-gdb.log.xz">./08-build_abe-gdb/make-gdb.log.xz</a>
-<li><a href="./09-build_abe-qemu/console.log.xz">./09-build_abe-qemu/console.log.xz</a>
-<li><a href="./09-build_abe-qemu/make-qemu.log.xz">./09-build_abe-qemu/make-qemu.log.xz</a>
-<li><a href="./10-build_abe-dejagnu/console.log.xz">./10-build_abe-dejagnu/console.log.xz</a>
-<li><a href="./10-build_abe-dejagnu/make-dejagnu.log.xz">./10-build_abe-dejagnu/make-dejagnu.log.xz</a>
-<li><a href="./11-build_abe-check_gcc/baseline.xfail/*view*/">./11-build_abe-check_gcc/baseline.xfail</a>
-<li><a href="./11-build_abe-check_gcc/check-gcc.log.xz">./11-build_abe-check_gcc/check-gcc.log.xz</a>
-<li><a href="./11-build_abe-check_gcc/console.log.xz">./11-build_abe-check_gcc/console.log.xz</a>
-<li><a href="./11-build_abe-check_gcc/flaky.xfail">./11-build_abe-check_gcc/flaky.xfail</a>
-<li><a href="./11-build_abe-check_gcc/testresults-mail-body.txt/*view*/">./11-build_abe-check_gcc/testresults-mail-body.txt</a>
-<li><a href="./11-build_abe-check_gcc/testresults-mail-recipient.txt/*view*/">./11-build_abe-check_gcc/testresults-mail-recipient.txt</a>
-<li><a href="./11-build_abe-check_gcc/testresults-mail-subject.txt/*view*/">./11-build_abe-check_gcc/testresults-mail-subject.txt</a>
 <li><a href="./12-check_regression/baseline.xfail/*view*/">./12-check_regression/baseline.xfail</a>
 <li><a href="./12-check_regression/console.log.xz">./12-check_regression/console.log.xz</a>
 <li><a href="./12-check_regression/extra-bisect-params/*view*/">./12-check_regression/extra-bisect-params</a>
@@ -106,6 +64,8 @@ List of files below:
 <li><a href="./jenkins/run-build.env/*view*/">./jenkins/run-build.env</a>
 <li><a href="./manifest.sh/*view*/">./manifest.sh</a>
 <li><a href="./notify/configure-make.txt/*view*/">./notify/configure-make.txt</a>
+<li><a href="./notify/configure-toolchain.txt/*view*/">./notify/configure-toolchain.txt</a>
+<li><a href="./notify/fixes.sum/*view*/">./notify/fixes.sum</a>
 <li><a href="./notify/jira/comment-card.txt/*view*/">./notify/jira/comment-card.txt</a>
 <li><a href="./notify/jira/comment-template.txt/*view*/">./notify/jira/comment-template.txt</a>
 <li><a href="./notify/jira/components/*view*/">./notify/jira/components</a>
@@ -114,7 +74,7 @@ List of files below:
 <li><a href="./notify/jira/startdate/*view*/">./notify/jira/startdate</a>
 <li><a href="./notify/jira/summary/*view*/">./notify/jira/summary</a>
 <li><a href="./notify/jira/yaml/*view*/">./notify/jira/yaml</a>
-<li><a href="./notify/lnt_report.json">./notify/lnt_report.json</a>
+<li><a href="./notify/lnt_report.json/*view*/">./notify/lnt_report.json</a>
 <li><a href="./notify/mail-body.txt/*view*/">./notify/mail-body.txt</a>
 <li><a href="./notify/mail-recipients.txt/*view*/">./notify/mail-recipients.txt</a>
 <li><a href="./notify/mail-subject.txt/*view*/">./notify/mail-subject.txt</a>
diff --git a/README.txt b/README.txt
index 7933f875..8575bd98 100644
--- a/README.txt
+++ b/README.txt
@@ -8,14 +8,6 @@ the build.  More synthetic information is available in other directories,
 as described below:
 
 
-- 00-sumfiles/ contains .log and possibly .sum files generated by the
-  build. Files with .0 suffix contain the results of the initial full
-  testsuite run, files with .1, .2 etc... contain logs restricted to
-  the parts (.exp) of the testsuite where we detected regressions.
-  .1, .2, .... represent the number of times this subset of the testsuite
-  was executed in order to also identify flaky tests.  The last one
-  contains what is considered as the results of this build.
-
 - git/ contains the revision and repository of each toolchain
   component built
 
@@ -37,45 +29,11 @@ interested in:
 
 - notify/regressions.sum and notify/results.compare.txt (regression report).
 
-- 00-sumfiles/ .log files with detailed errors, to save
-  yourself reproducing the problem on your machine.
 
 
 List of files below:
 
 
-- ./00-sumfiles/gcc.log.0.xz
-- ./00-sumfiles/gcc.log.1.xz
-- ./00-sumfiles/gcc.sum.0
-- ./00-sumfiles/gcc.sum.1
-- ./00-sumfiles/g++.log.0.xz
-- ./00-sumfiles/g++.sum.0
-- ./00-sumfiles/libstdc++.log.0.xz
-- ./00-sumfiles/libstdc++.sum.0
-- ./01-reset_artifacts/console.log.xz
-- ./02-prepare_abe/console.log.xz
-- ./03-build_abe-binutils/console.log.xz
-- ./03-build_abe-binutils/make-binutils.log.xz
-- ./04-build_abe-stage1/console.log.xz
-- ./04-build_abe-stage1/make-gcc-stage1.log.xz
-- ./05-clean_sysroot/console.log.xz
-- ./06-build_abe-newlib/console.log.xz
-- ./06-build_abe-newlib/make-newlib.log.xz
-- ./07-build_abe-stage2/console.log.xz
-- ./07-build_abe-stage2/make-gcc-stage2.log.xz
-- ./08-build_abe-gdb/console.log.xz
-- ./08-build_abe-gdb/make-gdb.log.xz
-- ./09-build_abe-qemu/console.log.xz
-- ./09-build_abe-qemu/make-qemu.log.xz
-- ./10-build_abe-dejagnu/console.log.xz
-- ./10-build_abe-dejagnu/make-dejagnu.log.xz
-- ./11-build_abe-check_gcc/baseline.xfail
-- ./11-build_abe-check_gcc/check-gcc.log.xz
-- ./11-build_abe-check_gcc/console.log.xz
-- ./11-build_abe-check_gcc/flaky.xfail
-- ./11-build_abe-check_gcc/testresults-mail-body.txt
-- ./11-build_abe-check_gcc/testresults-mail-recipient.txt
-- ./11-build_abe-check_gcc/testresults-mail-subject.txt
 - ./12-check_regression/baseline.xfail
 - ./12-check_regression/console.log.xz
 - ./12-check_regression/extra-bisect-params
@@ -103,6 +61,8 @@ List of files below:
 - ./jenkins/run-build.env
 - ./manifest.sh
 - ./notify/configure-make.txt
+- ./notify/configure-toolchain.txt
+- ./notify/fixes.sum
 - ./notify/jira/comment-card.txt
 - ./notify/jira/comment-template.txt
 - ./notify/jira/components
diff --git a/results b/results
index c0c1a891..f24fd957 100644
--- a/results
+++ b/results
@@ -17,3 +17,4 @@
 # build_abe check_gcc --:
 0
 # 16 regressions
+# 16 regressions
diff --git a/sumfiles/xfails.xfail b/sumfiles/xfails.xfail
index 2681aac9..b8b08152 100644
--- a/sumfiles/xfails.xfail
+++ b/sumfiles/xfails.xfail
@@ -3,6 +3,7 @@
 # - known flaky tests (from baseline)
 # - known failures (from baseline)
 #
+################################
 # Known flaky tests
 
 # From https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/469/:
@@ -238,6 +239,7 @@ flaky,expire=20230717 | UNRESOLVED: gcc.dg/section1.c scan-assembler-not .bss
 flaky,expire=20230717 | UNRESOLVED: gcc.dg/verbose-asm-2.c scan-assembler total = 0
 
 		=== Results Summary ===
+################################
 # Known failures (from baseline)
 		=== g++ tests ===
 
