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From: "chip.kerchner at ibm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/102059] Incorrect always_inline diagnostic in LTO mode with
 #pragma GCC target("cpu=power10")
Date: Tue, 14 Sep 2021 14:09:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102059

--- Comment #21 from Chip Kerchner <chip.kerchner at ibm dot com> ---
I'm also seeing MMA problems with LTO.  With this simple program (main.ii)

----------------------
int main() {
  float *b;
  __vector_quad c;
  __builtin_mma_disassemble_acc(b, &c);
  return 0;
}
----------------------

And this compile (using gcc 10.3.1)

----------------------
g++ -flto=3Dauto -mcpu=3Dpower9 main.ii
----------------------

I'm seeing this error (which does NOT occur without LTO)

----------------------
lto1: error: '__builtin_mma_xxmfacc_internal' requires the '-mmma' option
lto1: fatal error: target specific builtin not available
compilation terminated.
----------------------=