[flang-commits] [flang] [flang][NFC] Document Arm exception raising behavior (PR #125579)

[via flang-commits]

https://github.com/vdonaldson updated https://github.com/llvm/llvm-project/pull/125579

>From 1157d0f7a837491edada52631ba119aef8165134 Mon Sep 17 00:00:00 2001
From: V Donaldson <vdonaldson at nvidia.com>
Date: Mon, 3 Feb 2025 12:58:54 -0800
Subject: [PATCH] [flang][NFC] Document Arm exception raising behavior

---
 flang/docs/Extensions.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/flang/docs/Extensions.md b/flang/docs/Extensions.md
index e84bceee5ca7c7..ffb7e90eff919b 100644
--- a/flang/docs/Extensions.md
+++ b/flang/docs/Extensions.md
@@ -141,6 +141,10 @@ end
   This interpretation has usability advantages and is what six other
   Fortran compilers do, but is not conforming now that J3 approved an
   "interp" in June 2024 to the contrary.
+* When an Arm processor raises an `ieee_overflow` or `ieee_underflow`
+  exception, the `ieee_inexact` exception is also raised. This happens
+  for a call to `ieee_set_flag` as well as for floating point expression
+  evaluation.
 * Arm has processors that allow a user to control what happens when an
   arithmetic exception is signaled, as well as processors that do not
   have this capability. An Arm executable will run on either type of