do not try to use clang-19's support for c++26 pack indexing by ericniebler · Pull Request #3888 · NVIDIA/cccl

ericniebler · 2025-02-21T00:34:25Z

clang claims to support pack indexing by defining __cpp_pack_indexing, but then it fails to parse pack indexing expressions.

Description

this is an attempt to fix the problem described in nvbug#4864896

Checklist

New or existing tests cover these changes.
The documentation is up to date with these changes.

clang claims to support pack indexing by defining `__cpp_pack_indexing`, but then it fails to parse pack indexing expressions.

copy-pr-bot · 2025-02-21T00:34:28Z

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ericniebler · 2025-02-21T00:37:46Z

/ok to test

github-actions · 2025-02-21T01:47:44Z

🟩 CI finished in 1h 08m: Pass: 100%/158 | Total: 1d 05h | Avg: 11m 10s | Max: 37m 14s | Hits: 81%/248136

🟩 cub: Pass: 100%/45 | Total: 8h 23m | Avg: 11m 11s | Max: 30m 53s | Hits: 93%/53305

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  🟩 MSVC               Pass: 100%/4   | Total:  1h 58m | Avg: 29m 35s | Max: 30m 53s | Hits:  16%/4144  
  🟩 NVHPC              Pass: 100%/2   | Total: 20m 14s | Avg: 10m 07s | Max: 10m 24s | Hits:  98%/2240  
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  🟩 rtxa6000           Pass: 100%/8   | Total:  2h 25m | Avg: 18m 09s | Max: 24m 44s | Hits:  99%/9688  
🟩 jobs
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  🟩 20                 Pass: 100%/25  | Total:  5h 08m | Avg: 12m 20s | Max: 30m 53s | Hits:  96%/29850

🟩 thrust: Pass: 100%/45 | Total: 6h 32m | Avg: 8m 43s | Max: 33m 56s | Hits: 96%/80136

🟩 cmake_options
  🟩 -DTHRUST_DISPATCH_TYPE=Force32bit Pass: 100%/2   | Total: 16m 43s | Avg:  8m 21s | Max: 11m 03s | Hits:  99%/3564  
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  🟩 amd64              Pass: 100%/43  | Total:  6h 22m | Avg:  8m 54s | Max: 33m 56s | Hits:  96%/76573 
  🟩 arm64              Pass: 100%/2   | Total:  9m 39s | Avg:  4m 49s | Max:  5m 08s | Hits:  99%/3563  
🟩 ctk
  🟩 12.0               Pass: 100%/5   | Total: 43m 23s | Avg:  8m 40s | Max: 23m 55s | Hits:  94%/8901  
  🟩 12.5               Pass: 100%/2   | Total: 26m 33s | Avg: 13m 16s | Max: 13m 31s | Hits:  99%/3562  
  🟩 12.8               Pass: 100%/38  | Total:  5h 22m | Avg:  8m 29s | Max: 33m 56s | Hits:  96%/67673 
🟩 cudacxx
  🟩 ClangCUDA18        Pass: 100%/2   | Total: 10m 39s | Avg:  5m 19s | Max:  5m 25s | Hits: 100%/3562  
  🟩 nvcc12.0           Pass: 100%/5   | Total: 43m 23s | Avg:  8m 40s | Max: 23m 55s | Hits:  94%/8901  
  🟩 nvcc12.5           Pass: 100%/2   | Total: 26m 33s | Avg: 13m 16s | Max: 13m 31s | Hits:  99%/3562  
  🟩 nvcc12.8           Pass: 100%/36  | Total:  5h 11m | Avg:  8m 39s | Max: 33m 56s | Hits:  96%/64111 
🟩 cudacxx_family
  🟩 ClangCUDA          Pass: 100%/2   | Total: 10m 39s | Avg:  5m 19s | Max:  5m 25s | Hits: 100%/3562  
  🟩 nvcc               Pass: 100%/43  | Total:  6h 21m | Avg:  8m 52s | Max: 33m 56s | Hits:  96%/76574 
🟩 cxx
  🟩 Clang14            Pass: 100%/4   | Total: 20m 29s | Avg:  5m 07s | Max:  5m 41s | Hits: 100%/7124  
  🟩 Clang15            Pass: 100%/2   | Total: 10m 34s | Avg:  5m 17s | Max:  5m 27s | Hits: 100%/3562  
  🟩 Clang16            Pass: 100%/2   | Total: 10m 49s | Avg:  5m 24s | Max:  5m 31s | Hits: 100%/3562  
  🟩 Clang17            Pass: 100%/2   | Total: 10m 45s | Avg:  5m 22s | Max:  5m 38s | Hits: 100%/3562  
  🟩 Clang18            Pass: 100%/7   | Total: 43m 20s | Avg:  6m 11s | Max: 10m 09s | Hits: 100%/12467 
  🟩 GCC7               Pass: 100%/2   | Total: 10m 38s | Avg:  5m 19s | Max:  5m 43s | Hits:  99%/3564  
  🟩 GCC8               Pass: 100%/1   | Total:  5m 07s | Avg:  5m 07s | Max:  5m 07s | Hits:  99%/1782  
  🟩 GCC9               Pass: 100%/2   | Total: 10m 39s | Avg:  5m 19s | Max:  5m 39s | Hits:  99%/3564  
  🟩 GCC10              Pass: 100%/2   | Total: 11m 11s | Avg:  5m 35s | Max:  5m 39s | Hits:  99%/3564  
  🟩 GCC11              Pass: 100%/2   | Total: 11m 42s | Avg:  5m 51s | Max:  5m 55s | Hits:  99%/3564  
  🟩 GCC12              Pass: 100%/2   | Total: 11m 52s | Avg:  5m 56s | Max:  6m 17s | Hits:  99%/3564  
  🟩 GCC13              Pass: 100%/10  | Total:  1h 16m | Avg:  7m 37s | Max: 11m 59s | Hits:  99%/17820 
  🟩 MSVC14.29          Pass: 100%/2   | Total: 46m 43s | Avg: 23m 21s | Max: 23m 55s | Hits:  70%/3550  
  🟩 MSVC14.42          Pass: 100%/3   | Total:  1h 25m | Avg: 28m 39s | Max: 33m 56s | Hits:  70%/5325  
  🟩 NVHPC24.7          Pass: 100%/2   | Total: 26m 33s | Avg: 13m 16s | Max: 13m 31s | Hits:  99%/3562  
🟩 cxx_family
  🟩 Clang              Pass: 100%/17  | Total:  1h 35m | Avg:  5m 38s | Max: 10m 09s | Hits: 100%/30277 
  🟩 GCC                Pass: 100%/21  | Total:  2h 17m | Avg:  6m 32s | Max: 11m 59s | Hits:  99%/37422 
  🟩 MSVC               Pass: 100%/5   | Total:  2h 12m | Avg: 26m 32s | Max: 33m 56s | Hits:  70%/8875  
  🟩 NVHPC              Pass: 100%/2   | Total: 26m 33s | Avg: 13m 16s | Max: 13m 31s | Hits:  99%/3562  
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total: 16m 37s | Avg:  8m 18s | Max: 11m 59s | Hits:  99%/3564  
  🟩 rtx2080            Pass: 100%/33  | Total:  4h 11m | Avg:  7m 37s | Max: 26m 53s | Hits:  97%/58769 
  🟩 rtx4090            Pass: 100%/10  | Total:  2h 04m | Avg: 12m 24s | Max: 33m 56s | Hits:  94%/17803 
🟩 jobs
  🟩 Build              Pass: 100%/38  | Total:  4h 58m | Avg:  7m 51s | Max: 26m 53s | Hits:  96%/67671 
  🟩 TestCPU            Pass: 100%/3   | Total: 49m 40s | Avg: 16m 33s | Max: 33m 56s | Hits:  90%/5338  
  🟩 TestGPU            Pass: 100%/4   | Total: 44m 27s | Avg: 11m 06s | Max: 11m 59s | Hits:  99%/7127  
🟩 sm
  🟩 90                 Pass: 100%/2   | Total: 16m 37s | Avg:  8m 18s | Max: 11m 59s | Hits:  99%/3564  
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  🟩 20                 Pass: 100%/23  | Total:  3h 21m | Avg:  8m 46s | Max: 33m 56s | Hits:  97%/40961

🟩 libcudacxx: Pass: 100%/43 | Total: 11h 32m | Avg: 16m 06s | Max: 37m 14s | Hits: 61%/103127

🟩 cpu
  🟩 amd64              Pass: 100%/41  | Total: 11h 06m | Avg: 16m 15s | Max: 37m 14s | Hits:  61%/97470 
  🟩 arm64              Pass: 100%/2   | Total: 26m 08s | Avg: 13m 04s | Max: 21m 36s | Hits:  65%/5657  
🟩 ctk
  🟩 12.0               Pass: 100%/5   | Total:  1h 09m | Avg: 13m 55s | Max: 21m 54s | Hits:  70%/13681 
  🟩 12.5               Pass: 100%/2   | Total:  1h 11m | Avg: 35m 46s | Max: 37m 14s | Hits:  32%/5602  
  🟩 12.8               Pass: 100%/36  | Total:  9h 11m | Avg: 15m 18s | Max: 25m 43s | Hits:  62%/83844 
🟩 cudacxx
  🟩 ClangCUDA18        Pass: 100%/2   | Total: 43m 09s | Avg: 21m 34s | Max: 23m 06s | Hits:  26%/5620  
  🟩 nvcc12.0           Pass: 100%/5   | Total:  1h 09m | Avg: 13m 55s | Max: 21m 54s | Hits:  70%/13681 
  🟩 nvcc12.5           Pass: 100%/2   | Total:  1h 11m | Avg: 35m 46s | Max: 37m 14s | Hits:  32%/5602  
  🟩 nvcc12.8           Pass: 100%/34  | Total:  8h 28m | Avg: 14m 56s | Max: 25m 43s | Hits:  65%/78224 
🟩 cudacxx_family
  🟩 ClangCUDA          Pass: 100%/2   | Total: 43m 09s | Avg: 21m 34s | Max: 23m 06s | Hits:  26%/5620  
  🟩 nvcc               Pass: 100%/41  | Total: 10h 49m | Avg: 15m 50s | Max: 37m 14s | Hits:  64%/97507 
🟩 cxx
  🟩 Clang14            Pass: 100%/4   | Total: 34m 43s | Avg:  8m 40s | Max: 21m 09s | Hits:  80%/11206 
  🟩 Clang15            Pass: 100%/2   | Total: 47m 34s | Avg: 23m 47s | Max: 24m 19s | Hits:  34%/5614  
  🟩 Clang16            Pass: 100%/2   | Total: 27m 19s | Avg: 13m 39s | Max: 21m 33s | Hits:  65%/5614  
  🟩 Clang17            Pass: 100%/2   | Total: 27m 39s | Avg: 13m 49s | Max: 21m 55s | Hits:  65%/5614  
  🟩 Clang18            Pass: 100%/6   | Total:  1h 26m | Avg: 14m 27s | Max: 24m 02s | Hits:  55%/14062 
  🟩 GCC7               Pass: 100%/2   | Total: 38m 25s | Avg: 19m 12s | Max: 20m 30s | Hits:  34%/5552  
  🟩 GCC8               Pass: 100%/1   | Total: 20m 59s | Avg: 20m 59s | Max: 20m 59s | Hits:  34%/2786  
  🟩 GCC9               Pass: 100%/2   | Total: 45m 02s | Avg: 22m 31s | Max: 23m 53s | Hits:  34%/5564  
  🟩 GCC10              Pass: 100%/2   | Total:  9m 01s | Avg:  4m 30s | Max:  4m 41s | Hits:  95%/5620  
  🟩 GCC11              Pass: 100%/2   | Total: 43m 18s | Avg: 21m 39s | Max: 22m 50s | Hits:  34%/5616  
  🟩 GCC12              Pass: 100%/2   | Total: 28m 28s | Avg: 14m 14s | Max: 23m 29s | Hits:  65%/5616  
  🟩 GCC13              Pass: 100%/10  | Total:  1h 58m | Avg: 11m 49s | Max: 24m 37s | Hits:  71%/14321 
  🟩 MSVC14.29          Pass: 100%/2   | Total: 45m 16s | Avg: 22m 38s | Max: 23m 22s | Hits:  97%/5090  
  🟩 MSVC14.42          Pass: 100%/2   | Total: 48m 17s | Avg: 24m 08s | Max: 25m 43s | Hits:  95%/5250  
  🟩 NVHPC24.7          Pass: 100%/2   | Total:  1h 11m | Avg: 35m 46s | Max: 37m 14s | Hits:  32%/5602  
🟩 cxx_family
  🟩 Clang              Pass: 100%/16  | Total:  3h 44m | Avg: 14m 00s | Max: 24m 19s | Hits:  62%/42110 
  🟩 GCC                Pass: 100%/21  | Total:  5h 03m | Avg: 14m 26s | Max: 24m 37s | Hits:  57%/45075 
  🟩 MSVC               Pass: 100%/4   | Total:  1h 33m | Avg: 23m 23s | Max: 25m 43s | Hits:  96%/10340 
  🟩 NVHPC              Pass: 100%/2   | Total:  1h 11m | Avg: 35m 46s | Max: 37m 14s | Hits:  32%/5602  
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total: 18m 14s | Avg:  9m 07s | Max: 13m 24s | Hits:  95%/2918  
  🟩 rtx2080            Pass: 100%/41  | Total: 11h 14m | Avg: 16m 26s | Max: 37m 14s | Hits:  61%/100209
🟩 jobs
  🟩 Build              Pass: 100%/37  | Total: 10h 24m | Avg: 16m 53s | Max: 37m 14s | Hits:  61%/103087
  🟩 NVRTC              Pass: 100%/2   | Total: 31m 28s | Avg: 15m 44s | Max: 15m 46s | Hits:  90%/40    
  🟩 Test               Pass: 100%/3   | Total: 33m 54s | Avg: 11m 18s | Max: 13m 24s
  🟩 VerifyCodegen      Pass: 100%/1   | Total:  2m 17s | Avg:  2m 17s | Max:  2m 17s
🟩 sm
  🟩 75                 Pass: 100%/2   | Total: 31m 28s | Avg: 15m 44s | Max: 15m 46s | Hits:  90%/40    
  🟩 90                 Pass: 100%/2   | Total: 18m 14s | Avg:  9m 07s | Max: 13m 24s | Hits:  95%/2918  
  🟩 90;90a;100         Pass: 100%/1   | Total:  5m 00s | Avg:  5m 00s | Max:  5m 00s | Hits:  95%/2918  
🟩 std
  🟩 17                 Pass: 100%/21  | Total:  6h 16m | Avg: 17m 54s | Max: 34m 18s | Hits:  58%/54987 
  🟩 20                 Pass: 100%/21  | Total:  5h 14m | Avg: 14m 57s | Max: 37m 14s | Hits:  66%/48140

🟩 cudax: Pass: 100%/22 | Total: 2h 10m | Avg: 5m 55s | Max: 13m 43s | Hits: 96%/11264

🟩 cpu
  🟩 amd64              Pass: 100%/18  | Total:  1h 55m | Avg:  6m 25s | Max: 13m 43s | Hits:  96%/9036  
  🟩 arm64              Pass: 100%/4   | Total: 14m 53s | Avg:  3m 43s | Max:  3m 50s | Hits:  98%/2228  
🟩 ctk
  🟩 12.0               Pass: 100%/1   | Total: 10m 38s | Avg: 10m 38s | Max: 10m 38s | Hits:  61%/262   
  🟩 12.5               Pass: 100%/2   | Total: 12m 35s | Avg:  6m 17s | Max:  6m 26s | Hits:  95%/710   
  🟩 12.8               Pass: 100%/19  | Total:  1h 47m | Avg:  5m 38s | Max: 13m 43s | Hits:  97%/10292 
🟩 cudacxx
  🟩 nvcc12.0           Pass: 100%/1   | Total: 10m 38s | Avg: 10m 38s | Max: 10m 38s | Hits:  61%/262   
  🟩 nvcc12.5           Pass: 100%/2   | Total: 12m 35s | Avg:  6m 17s | Max:  6m 26s | Hits:  95%/710   
  🟩 nvcc12.8           Pass: 100%/19  | Total:  1h 47m | Avg:  5m 38s | Max: 13m 43s | Hits:  97%/10292 
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/22  | Total:  2h 10m | Avg:  5m 55s | Max: 13m 43s | Hits:  96%/11264 
🟩 cxx
  🟩 Clang14            Pass: 100%/1   | Total:  4m 18s | Avg:  4m 18s | Max:  4m 18s | Hits:  98%/559   
  🟩 Clang15            Pass: 100%/1   | Total:  3m 57s | Avg:  3m 57s | Max:  3m 57s | Hits:  98%/557   
  🟩 Clang16            Pass: 100%/1   | Total:  4m 25s | Avg:  4m 25s | Max:  4m 25s | Hits:  98%/557   
  🟩 Clang17            Pass: 100%/1   | Total:  3m 50s | Avg:  3m 50s | Max:  3m 50s | Hits:  98%/557   
  🟩 Clang18            Pass: 100%/4   | Total: 23m 49s | Avg:  5m 57s | Max: 12m 34s | Hits:  98%/2228  
  🟩 GCC10              Pass: 100%/1   | Total:  4m 10s | Avg:  4m 10s | Max:  4m 10s | Hits:  98%/559   
  🟩 GCC11              Pass: 100%/1   | Total:  4m 06s | Avg:  4m 06s | Max:  4m 06s | Hits:  98%/557   
  🟩 GCC12              Pass: 100%/2   | Total: 16m 28s | Avg:  8m 14s | Max: 12m 26s | Hits:  98%/1114  
  🟩 GCC13              Pass: 100%/6   | Total: 31m 55s | Avg:  5m 19s | Max: 13m 43s | Hits:  98%/3342  
  🟩 MSVC14.39          Pass: 100%/1   | Total: 10m 38s | Avg: 10m 38s | Max: 10m 38s | Hits:  61%/262   
  🟩 MSVC14.42          Pass: 100%/1   | Total: 10m 13s | Avg: 10m 13s | Max: 10m 13s | Hits:  61%/262   
  🟩 NVHPC24.7          Pass: 100%/2   | Total: 12m 35s | Avg:  6m 17s | Max:  6m 26s | Hits:  95%/710   
🟩 cxx_family
  🟩 Clang              Pass: 100%/8   | Total: 40m 19s | Avg:  5m 02s | Max: 12m 34s | Hits:  98%/4458  
  🟩 GCC                Pass: 100%/10  | Total: 56m 39s | Avg:  5m 39s | Max: 13m 43s | Hits:  98%/5572  
  🟩 MSVC               Pass: 100%/2   | Total: 20m 51s | Avg: 10m 25s | Max: 10m 38s | Hits:  61%/524   
  🟩 NVHPC              Pass: 100%/2   | Total: 12m 35s | Avg:  6m 17s | Max:  6m 26s | Hits:  95%/710   
🟩 gpu
  🟩 h100               Pass: 100%/2   | Total: 17m 15s | Avg:  8m 37s | Max: 13m 43s | Hits:  98%/1114  
  🟩 rtx2080            Pass: 100%/20  | Total:  1h 53m | Avg:  5m 39s | Max: 12m 34s | Hits:  96%/10150 
🟩 jobs
  🟩 Build              Pass: 100%/19  | Total:  1h 31m | Avg:  4m 49s | Max: 10m 38s | Hits:  96%/9593  
  🟩 Test               Pass: 100%/3   | Total: 38m 43s | Avg: 12m 54s | Max: 13m 43s | Hits:  99%/1671  
🟩 sm
  🟩 90                 Pass: 100%/3   | Total: 20m 42s | Avg:  6m 54s | Max: 13m 43s | Hits:  98%/1671  
  🟩 90a                Pass: 100%/1   | Total:  3m 34s | Avg:  3m 34s | Max:  3m 34s | Hits:  98%/557   
🟩 std
  🟩 17                 Pass: 100%/4   | Total: 17m 19s | Avg:  4m 19s | Max:  6m 26s | Hits:  97%/2026  
  🟩 20                 Pass: 100%/18  | Total:  1h 53m | Avg:  6m 16s | Max: 13m 43s | Hits:  96%/9238

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 14m 38s | Avg: 7m 19s | Max: 12m 24s | Hits: 98%/304

🟩 cpu
  🟩 amd64              Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 ctk
  🟩 12.8               Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 cxx
  🟩 GCC13              Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 cxx_family
  🟩 GCC                Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 gpu
  🟩 rtx2080            Pass: 100%/2   | Total: 14m 38s | Avg:  7m 19s | Max: 12m 24s | Hits:  98%/304   
🟩 jobs
  🟩 Build              Pass: 100%/1   | Total:  2m 14s | Avg:  2m 14s | Max:  2m 14s | Hits:  98%/152   
  🟩 Test               Pass: 100%/1   | Total: 12m 24s | Avg: 12m 24s | Max: 12m 24s | Hits:  98%/152

🟩 python: Pass: 100%/1 | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s

🟩 cpu
  🟩 amd64              Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 ctk
  🟩 12.8               Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 cudacxx
  🟩 nvcc12.8           Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 cudacxx_family
  🟩 nvcc               Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 cxx
  🟩 GCC13              Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 cxx_family
  🟩 GCC                Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 gpu
  🟩 rtx2080            Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s
🟩 jobs
  🟩 Test               Pass: 100%/1   | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s

👃 Inspect Changes

Modifications in project?

	Project
	CCCL Infrastructure
+/-	libcu++
	CUB
	Thrust
	CUDA Experimental
	python
	CCCL C Parallel Library
	Catch2Helper

Modifications in project or dependencies?

	Project
	CCCL Infrastructure
+/-	libcu++
+/-	CUB
+/-	Thrust
+/-	CUDA Experimental
+/-	python
+/-	CCCL C Parallel Library
+/-	Catch2Helper

🏃‍ Runner counts (total jobs: 158)

#	Runner
111	`linux-amd64-cpu16`
15	`windows-amd64-cpu16`
10	`linux-arm64-cpu16`
8	`linux-amd64-gpu-rtx2080-latest-1`
6	`linux-amd64-gpu-rtxa6000-latest-1`
5	`linux-amd64-gpu-h100-latest-1`
3	`linux-amd64-gpu-rtx4090-latest-1`

github-actions · 2025-02-21T18:49:31Z

Successfully created backport PR for branch/2.8.x:

[Backport branch/2.8.x] do not try to use clang-19's support for c++26 pack indexing #3903

clang claims to support pack indexing by defining `__cpp_pack_indexing`, but then it fails to parse pack indexing expressions. (cherry picked from commit c267f32)

…3903) clang claims to support pack indexing by defining `__cpp_pack_indexing`, but then it fails to parse pack indexing expressions. (cherry picked from commit c267f32) Co-authored-by: Eric Niebler <eniebler@nvidia.com>

…3888) clang claims to support pack indexing by defining `__cpp_pack_indexing`, but then it fails to parse pack indexing expressions.

do not try to use clang-19's support for c++26 pack indexing

06c5e59

clang claims to support pack indexing by defining `__cpp_pack_indexing`, but then it fails to parse pack indexing expressions.

ericniebler marked this pull request as ready for review February 21, 2025 00:37

ericniebler requested a review from a team as a code owner February 21, 2025 00:37

ericniebler requested a review from wmaxey February 21, 2025 00:37

pciolkosz approved these changes Feb 21, 2025

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ericniebler enabled auto-merge (squash) February 21, 2025 02:40

bernhardmgruber approved these changes Feb 21, 2025

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ericniebler merged commit c267f32 into NVIDIA:main Feb 21, 2025
172 of 175 checks passed

wmaxey added the backport branch/2.8.x label Feb 21, 2025

github-actions bot mentioned this pull request Feb 21, 2025

[Backport branch/2.8.x] do not try to use clang-19's support for c++26 pack indexing #3903

Merged

ericniebler mentioned this pull request Mar 26, 2025

change version check in type_list.h so that *NO* clang-19.X compilers try to use pack indexing #4278

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do not try to use clang-19's support for c++26 pack indexing#3888

do not try to use clang-19's support for c++26 pack indexing#3888
ericniebler merged 1 commit intoNVIDIA:mainfrom
ericniebler:work-around-clang-19-pack-indexing-bug

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🟩 cub: Pass: 100%/45 | Total: 8h 23m | Avg: 11m 11s | Max: 30m 53s | Hits: 93%/53305

🟩 thrust: Pass: 100%/45 | Total: 6h 32m | Avg: 8m 43s | Max: 33m 56s | Hits: 96%/80136

🟩 libcudacxx: Pass: 100%/43 | Total: 11h 32m | Avg: 16m 06s | Max: 37m 14s | Hits: 61%/103127

🟩 cudax: Pass: 100%/22 | Total: 2h 10m | Avg: 5m 55s | Max: 13m 43s | Hits: 96%/11264

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 14m 38s | Avg: 7m 19s | Max: 12m 24s | Hits: 98%/304

🟩 python: Pass: 100%/1 | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s

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ericniebler commented Feb 21, 2025

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github-actions bot commented Feb 21, 2025

🟩 cub: Pass: 100%/45 | Total: 8h 23m | Avg: 11m 11s | Max: 30m 53s | Hits: 93%/53305

🟩 thrust: Pass: 100%/45 | Total: 6h 32m | Avg: 8m 43s | Max: 33m 56s | Hits: 96%/80136

🟩 libcudacxx: Pass: 100%/43 | Total: 11h 32m | Avg: 16m 06s | Max: 37m 14s | Hits: 61%/103127

🟩 cudax: Pass: 100%/22 | Total: 2h 10m | Avg: 5m 55s | Max: 13m 43s | Hits: 96%/11264

🟩 cccl_c_parallel: Pass: 100%/2 | Total: 14m 38s | Avg: 7m 19s | Max: 12m 24s | Hits: 98%/304

🟩 python: Pass: 100%/1 | Total: 31m 12s | Avg: 31m 12s | Max: 31m 12s

👃 Inspect Changes

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🏃‍ Runner counts (total jobs: 158)

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