[flang-commits] [flang] [Flang] remove assert using femode_t from AIX (PR #74500)

[via flang-commits]

vdonaldson wrote:

> > @madanial0 Thanks for addressing this problem!
> > This is just an assert. Could we change this to "#if 0", perhaps with a comment about windows and AIX?
> 
> Not sure I follow the "#if 0" part ? do you mean instead of the defined parts for AIX and windows?

Something like this:
```
diff --git a/flang/runtime/exceptions.cpp b/flang/runtime/exceptions.cpp
index 797d0c87e601..7106ae73cddc 100644
--- a/flang/runtime/exceptions.cpp
+++ b/flang/runtime/exceptions.cpp
@@ -78,7 +78,9 @@ std::int32_t RTNAME(MapException)(int32_t except) {
 // Verify that the size of ieee_modes_type and ieee_status_type objects from
 // intrinsic module file __fortran_ieee_exceptions.f90 are large enough to
 // hold femode_t and fenv_t objects, respectively.
-#ifndef _WIN32
+#if 0
+// femode_t is not universally defined in fenv.h
+// #if !defined(_WIN32) && !DEFINED(_AIX)
 static_assert(
     sizeof(femode_t) <= sizeof(int) * _FORTRAN_RUNTIME_IEEE_FEMODE_T_EXTENT,
     "increase ieee_modes_type size");

```

https://github.com/llvm/llvm-project/pull/74500