[PATCH] D67552: [LangRef] Clarify fmuladd(a, b, c) can be treated as fadd (fmul a, b), c).

[Florian Hahn via Phabricator via llvm-commits]

fhahn updated this revision to Diff 220216.
fhahn added a comment.

Updated with @reames' suggestion, thanks!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67552/new/

https://reviews.llvm.org/D67552

Files:
  llvm/docs/LangRef.rst


Index: llvm/docs/LangRef.rst
===================================================================
--- llvm/docs/LangRef.rst
+++ llvm/docs/LangRef.rst
@@ -13951,12 +13951,12 @@
 
       %0 = call float @llvm.fmuladd.f32(%a, %b, %c)
 
-is equivalent to the expression a \* b + c, except that rounding will
-not be performed between the multiplication and addition steps if the
-code generator fuses the operations. Fusion is not guaranteed, even if
-the target platform supports it. If a fused multiply-add is required, the
-corresponding :ref:`llvm.fma <int_fma>` intrinsic function should be used
-instead. This never sets errno, just as '``llvm.fma.*``'.
+is equivalent to the expression a \* b + c, except that it is unspecified
+whether rounding will be performed between the multiplication and addition
+steps. Fusion is not guaranteed, even if the target platform supports it.
+If a fused multiply-add is required, the corresponding
+:ref:`llvm.fma <int_fma>` intrinsic function should be used instead.
+This never sets errno, just as '``llvm.fma.*``'.
 
 Examples:
 """""""""


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D67552.220216.patch
Type: text/x-patch
Size: 1081 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20190914/af35bfc6/attachment.bin>