rootcause macos failure issue

Signed-off-by: dsengupta0628 <dsengupta@precisioninno.com>

.github/workflows/ci.yml

@@ -127,7 +127,7 @@ jobs:
       - name: Test
         run: |
           cd test
-          ./regression || (cat results/diffs && exit 1)
+          ./regression --output-on-failure
 
       - name: Upload Test Result
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
@@ -136,3 +136,4 @@ jobs:
           name: result-macos
           path: |
             test/results/*
+            */test/results/*

search/test/search_network_sta_deep.ok

@@ -221,7 +221,6 @@ Path Type: max
 17 default vmin clk ^ clk_src clk crpr_pin null
 18 default ^max clk ^ clk_src clk crpr_pin null
 19 default vmax clk ^ clk_src clk crpr_pin null
-Longest hash bucket length 1 hash=6
 --- report_clk_infos ---
 default/min clk ^ clk_src clk uncertain 
 default/max clk ^ clk_src clk uncertain 
@@ -229,25 +228,24 @@ default/min clk v clk_src clk uncertain
 default/max clk v clk_src clk uncertain 
 4 clk infos
 --- report_tag_groups ---
-Group    0 hash = 2697898004198490802 (  79)
+Group    0 hash = <hash> (<bucket>)
   0 0 default ^min clk ^ clk_src clk crpr_pin null input in2
   1 2 default ^max clk ^ clk_src clk crpr_pin null input in2
   2 1 default vmin clk ^ clk_src clk crpr_pin null input in2
   3 3 default vmax clk ^ clk_src clk crpr_pin null input in2
 
-Group    1 hash = 17966741373156438452 (  88)
+Group    1 hash = <hash> (<bucket>)
   0 8 default ^min clk ^ (clock ideal) clk_src clk crpr_pin null
   1 12 default ^max clk ^ (clock ideal) clk_src clk crpr_pin null
   2 11 default vmin clk v (clock ideal) clk_src clk crpr_pin null
   3 15 default vmax clk v (clock ideal) clk_src clk crpr_pin null
 
-Group    2 hash = 17969506314027398258 ( 127)
+Group    2 hash = <hash> (<bucket>)
   0 16 default ^min clk ^ clk_src clk crpr_pin null
   1 18 default ^max clk ^ clk_src clk crpr_pin null
   2 17 default vmin clk ^ clk_src clk crpr_pin null
   3 19 default vmax clk ^ clk_src clk crpr_pin null
 
-Longest hash bucket length 1 hash=79
 --- report_path_count_histogram ---
      4     15
 --- tag/group/path counts ---

search/test/search_network_sta_deep.tcl

@@ -74,13 +74,15 @@ report_checks -path_delay max
 # Tag, group, info reporting
 ############################################################
 puts "--- report_tags ---"
-sta::report_tags
+report_masked_hashes [make_result_file search_network_sta_deep_tags.txt] \
+  sta::report_tags
 
 puts "--- report_clk_infos ---"
 sta::report_clk_infos
 
 puts "--- report_tag_groups ---"
-sta::report_tag_groups
+report_masked_hashes [make_result_file search_network_sta_deep_tag_groups.txt] \
+  sta::report_tag_groups
 
 puts "--- report_path_count_histogram ---"
 sta::report_path_count_histogram

search/test/search_report_path_detail.ok

@@ -201,37 +201,37 @@ Endpoint count: 3
 Path group names: clk out_group reg_group asynchronous {path delay} {gated clock} unconstrained
 --- find_requireds ---
 --- report internal debug ---
-Group    0 hash = 2697898004198490802 (  79)
+Group    0 hash = <hash> (<bucket>)
   0 0 default ^min clk ^ clk_src clk crpr_pin null input in2
   1 2 default ^max clk ^ clk_src clk crpr_pin null input in2
   2 1 default vmin clk ^ clk_src clk crpr_pin null input in2
   3 3 default vmax clk ^ clk_src clk crpr_pin null input in2
 
-Group    1 hash = 1860950969858666218 ( 107)
+Group    1 hash = <hash> (<bucket>)
   0 4 default ^min clk ^ clk_src clk crpr_pin null input in1 Group -from {in1}
   1 6 default ^max clk ^ clk_src clk crpr_pin null input in1 Group -from {in1}
   2 5 default vmin clk ^ clk_src clk crpr_pin null input in1 Group -from {in1}
   3 7 default vmax clk ^ clk_src clk crpr_pin null input in1 Group -from {in1}
 
-Group    2 hash = 17966741373156438452 (  88)
+Group    2 hash = <hash> (<bucket>)
   0 8 default ^min clk ^ (clock ideal) clk_src clk crpr_pin null
   1 12 default ^max clk ^ (clock ideal) clk_src clk crpr_pin null
   2 11 default vmin clk v (clock ideal) clk_src clk crpr_pin null
   3 15 default vmax clk v (clock ideal) clk_src clk crpr_pin null
 
-Group    3 hash = 17944144282683767210 ( 132)
+Group    3 hash = <hash> (<bucket>)
   0 16 default ^min clk ^ clk_src clk crpr_pin null Group -from {in1}
   1 18 default ^max clk ^ clk_src clk crpr_pin null Group -from {in1}
   2 17 default vmin clk ^ clk_src clk crpr_pin null Group -from {in1}
   3 19 default vmax clk ^ clk_src clk crpr_pin null Group -from {in1}
 
-Group    4 hash = 17969506314027398258 ( 127)
+Group    4 hash = <hash> (<bucket>)
   0 20 default ^min clk ^ clk_src clk crpr_pin null
   1 22 default ^max clk ^ clk_src clk crpr_pin null
   2 21 default vmin clk ^ clk_src clk crpr_pin null
   3 23 default vmax clk ^ clk_src clk crpr_pin null
 
-Group    5 hash = 17466906523001613852 (  62)
+Group    5 hash = <hash> (<bucket>)
   0 20 default ^min clk ^ clk_src clk crpr_pin null
   1 16 default ^min clk ^ clk_src clk crpr_pin null Group -from {in1}
   2 22 default ^max clk ^ clk_src clk crpr_pin null
@@ -241,7 +241,6 @@ Group    5 hash = 17466906523001613852 (  62)
   6 23 default vmax clk ^ clk_src clk crpr_pin null
   7 19 default vmax clk ^ clk_src clk crpr_pin null Group -from {in1}
 
-Longest hash bucket length 1 hash=62
 0 default ^min clk ^ clk_src clk crpr_pin null input in2
 1 default vmin clk ^ clk_src clk crpr_pin null input in2
 2 default ^max clk ^ clk_src clk crpr_pin null input in2
@@ -266,7 +265,6 @@ Longest hash bucket length 1 hash=62
 21 default vmin clk ^ clk_src clk crpr_pin null
 22 default ^max clk ^ clk_src clk crpr_pin null
 23 default vmax clk ^ clk_src clk crpr_pin null
-Longest hash bucket length 1 hash=6
 default/min clk ^ clk_src clk uncertain 
 default/max clk ^ clk_src clk uncertain 
 default/min clk v clk_src clk uncertain 

search/test/search_report_path_detail.tcl

@@ -1,5 +1,7 @@
 # Test ReportPath.cc, PathEnum.cc, PathExpanded.cc, PathGroup.cc
 # Exercises uncovered report path formats and path enumeration
+source ../../test/helpers.tcl
+
 read_liberty ../../test/nangate45/Nangate45_typ.lib
 read_verilog search_test1.v
 link_design search_test1
@@ -134,8 +136,10 @@ puts "--- find_requireds ---"
 sta::find_requireds
 
 puts "--- report internal debug ---"
-sta::report_tag_groups
-sta::report_tags
+report_masked_hashes [make_result_file search_report_path_detail_tag_groups.txt] \
+  sta::report_tag_groups
+report_masked_hashes [make_result_file search_report_path_detail_tags.txt] \
+  sta::report_tags
 sta::report_clk_infos
 sta::report_arrival_entries
 sta::report_required_entries

search/test/search_search_arrival_required.ok

@@ -23,7 +23,6 @@ min violations: 0
 17 default vmin clk ^ clk_src clk crpr_pin null
 18 default ^max clk ^ clk_src clk crpr_pin null
 19 default vmax clk ^ clk_src clk crpr_pin null
-Longest hash bucket length 1 hash=6
 --- report_clk_infos ---
 default/min clk ^ clk_src clk uncertain 
 default/max clk ^ clk_src clk uncertain 
@@ -31,25 +30,24 @@ default/min clk v clk_src clk uncertain
 default/max clk v clk_src clk uncertain 
 4 clk infos
 --- report_tag_groups ---
-Group    0 hash = 2697898004198490802 (  79)
+Group    0 hash = <hash> (<bucket>)
   0 0 default ^min clk ^ clk_src clk crpr_pin null input in2
   1 2 default ^max clk ^ clk_src clk crpr_pin null input in2
   2 1 default vmin clk ^ clk_src clk crpr_pin null input in2
   3 3 default vmax clk ^ clk_src clk crpr_pin null input in2
 
-Group    1 hash = 17966741373156438452 (  88)
+Group    1 hash = <hash> (<bucket>)
   0 8 default ^min clk ^ (clock ideal) clk_src clk crpr_pin null
   1 12 default ^max clk ^ (clock ideal) clk_src clk crpr_pin null
   2 11 default vmin clk v (clock ideal) clk_src clk crpr_pin null
   3 15 default vmax clk v (clock ideal) clk_src clk crpr_pin null
 
-Group    2 hash = 17969506314027398258 ( 127)
+Group    2 hash = <hash> (<bucket>)
   0 16 default ^min clk ^ clk_src clk crpr_pin null
   1 18 default ^max clk ^ clk_src clk crpr_pin null
   2 17 default vmin clk ^ clk_src clk crpr_pin null
   3 19 default vmax clk ^ clk_src clk crpr_pin null
 
-Longest hash bucket length 1 hash=79
 --- report_path_count_histogram ---
      4     15
 --- report_arrival_entries ---

search/test/search_search_arrival_required.tcl

@@ -39,13 +39,15 @@ puts "min violations: [sta::endpoint_violation_count min]"
 # report internal structures
 ############################################################
 puts "--- report_tags ---"
-sta::report_tags
+report_masked_hashes [make_result_file search_search_arrival_required_tags.txt] \
+  sta::report_tags
 
 puts "--- report_clk_infos ---"
 sta::report_clk_infos
 
 puts "--- report_tag_groups ---"
-sta::report_tag_groups
+report_masked_hashes [make_result_file search_search_arrival_required_tag_groups.txt] \
+  sta::report_tag_groups
 
 puts "--- report_path_count_histogram ---"
 sta::report_path_count_histogram

test/helpers.tcl

@@ -67,6 +67,30 @@ proc diff_files_sorted { file1 file2 } {
   }
 }
 
+# Run cmd with its report output captured to file, then echo the output
+# with hash values masked and hash bucket reports dropped.
+# std::unordered_set bucket counts and std::hash<float> results are
+# implementation defined, so report_tags/report_tag_groups hashes differ
+# between libstdc++ (linux) and libc++ (macos).
+proc report_masked_hashes { file cmd } {
+  sta::redirect_file_begin $file
+  set code [catch { uplevel 1 $cmd } result]
+  sta::redirect_file_end
+  if { $code } {
+    return -code $code $result
+  }
+  set stream [open $file r]
+  gets $stream line
+  while { ![eof $stream] } {
+    if { ![regexp {^Longest hash bucket} $line] } {
+      regsub {hash = \d+ \(\s*\d+\)} $line {hash = <hash> (<bucket>)} line
+      puts $line
+    }
+    gets $stream line
+  }
+  close $stream
+}
+
 proc assert_file_nonempty { path } {
   if { ![file exists $path] || [file size $path] <= 0 } {
     error "expected non-empty file: $path"