[PATCH] D144454: Add builtin for llvm set rounding

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

New builtins should be documented in the user manual.

There are standard pragmas for changing the rounding mode, right?  What's the interaction between the ability to set this dynamically with a builtin call and those pragmas?



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Comment at: clang/test/CodeGen/builtins.c:283
+  res = __builtin_flt_rounds_set(1);
+  // CHECK: call void @llvm.set.rounding(
 }
----------------
Just for completeness, please test that this gets the result of the expression.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144454/new/

https://reviews.llvm.org/D144454