[all-commits] [llvm/llvm-project] ce7700: [flang][runtime] Address PRODUCT numeric discrepan...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ce7700e29dfbc85348942d74d0ca2ba9ac8d8cf5
      https://github.com/llvm/llvm-project/commit/ce7700e29dfbc85348942d74d0ca2ba9ac8d8cf5
  Author: Peter Klausler <35819229+klausler at users.noreply.github.com>
  Date:   2024-05-02 (Thu, 02 May 2024)

  Changed paths:
    M flang/runtime/product.cpp
    M flang/runtime/reduction-templates.h
    M flang/runtime/sum.cpp

  Log Message:
  -----------
  [flang][runtime] Address PRODUCT numeric discrepancy, folding vs runtime (#90125)

Ensure that the runtime implementations of floating-point reductions use
intermediate results of the same precision as the operands, so that
results match those from constant folding. (SUM reduction uses Kahan
summation in both cases.)



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