Switch all three playgrounds to measure the performance of disabling alias analysis#28426
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bradcray merged 1 commit intochapel-lang:mainfrom Feb 20, 2026
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…alias analysis This switches all three playgrounds (chapcs, Apollo w/ gasnet-ibv, Arkouda) to use a branch in which I diable our alias analysis by default to understand the impact on performance. This is equivalent to testing with --no-interprocedural-alias-analysis. --- Signed-off-by: Brad Chamberlain <bradcray@users.noreply.github.com>
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@benharsh , @jabraham17 , @dlongnecke-cray : Would one of you check my work here, and also check the branch being tested at main...bradcray:chapel:no-noAliasSets2? Both are relatively simple, but that doesn't mean I didn't make simple mistakes. Of these, the Arkouda case is the one I'm most likely to have gotten wrong (not to lead the witness…). |
benharsh
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Feb 19, 2026
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This switches all three playgrounds (chapcs, Apollo w/ gasnet-ibv, Arkouda) to use a branch in which I disable our alias analysis by default to understand the impact on performance. This is equivalent to testing with --no-interprocedural-alias-analysis, which tries to find cases in which Chapel has special information about non-aliasing data structures that it passes along to LLVM in hopes of reaping benefits.