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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103910] openjdk17 causes ICE on -O3 -march=opteron
 -fchecking-new: during GIMPLE pass: aprefetch: in gimple_build_call, at
 gimple.c:267
Date: Tue, 04 Jan 2022 22:37:50 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103910

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This should fix the issue:
apinski@xeond:~/src/upstream-gcc/gcc/gcc/config/i386$ git diff i386.h
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index f027608eefa..3ac0f698ae2 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -486,7 +486,7 @@ extern unsigned char ix86_prefetch_sse;

 /* Fence to use after loop using storent.  */

-extern tree x86_mfence;
+extern GTY(()) tree x86_mfence;
 #define FENCE_FOLLOWING_MOVNT x86_mfence

 /* Once GDB has been enhanced to deal with functions without frame=