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Re: C++ PATCH for c++/91346 - Implement C++2a P1668R1, allow unevaluated asm in constexpr


On 8/7/19 4:44 PM, Marek Polacek wrote:
On Wed, Aug 07, 2019 at 10:37:04PM +0200, Jakub Jelinek wrote:
On Wed, Aug 07, 2019 at 04:30:29PM -0400, Marek Polacek wrote:
+/* Complain about an attempt to evaluate inline assembly.  */
+
+static void
+inline_asm_in_constexpr_error (location_t loc)
+{
+  error_at (loc, "inline assembly is not a constant expression");
+  inform (loc, "only unevaluated inline assembly is allowed in a "
+	  "%<constexpr%> function in C++2a");

Note, I think in this case you do want a
   auto_diagnostic_group d;
before the two diagnostic calls, whether you apply this patch or not,
because they are a diagnostic group together.  See PR84889.

It's not like we talked about it just a while ago...  /facepalm

Will fix.

OK with that change.

Jason


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