From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 187593858284; Tue,  5 Mar 2024 08:59:53 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 187593858284
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1709629194;
	bh=SXfC9SZMc4+XMo128oNiXQiqeCdn3PVm2dahaZyE0cM=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=xKkmNMoeK4PzN4jzlVV5jZuS37UNlVZPGKXnIMXiWDyt2U5O1WKPOI41qW0iak22M
	 wVJhii1EFmJKvZtlboHaBO0zftpEXv/F8QR3i/AibMtbQRcQKrJpAbsZ6fqoCBQJs6
	 K+noZzr9KvzzE+U1BsyG/qVYNIVfqcRMGZLAAoOU=
From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114232] [14 regression] ICE when building rr-5.7.0 with
 LTO on x86
Date: Tue, 05 Mar 2024 08:59:53 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ubizjak at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-114232-4-P3fuyGCtHU@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-114232-4@http.gcc.gnu.org/bugzilla/>
References: <bug-114232-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114232

--- Comment #5 from Uro=C5=A1 Bizjak <ubizjak at gmail dot com> ---
Huh, it looks that optimize_function_for_size_p (cfun) is not stable during
LTO?!

Using:

--cut here--
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 2856ae6ffef..80114494b0b 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -2975,7 +2975,7 @@ (define_insn "<insn>v2qi3"
          (match_operand:V2QI 1 "register_operand" "<comm>0,0,Yw")
          (match_operand:V2QI 2 "register_operand" "Q,x,Yw")))
    (clobber (reg:CC FLAGS_REG))]
-  "!TARGET_PARTIAL_REG_STALL || optimize_function_for_size_p (cfun)"
+  "!TARGET_PARTIAL_REG_STALL"
   "#"
   [(set_attr "isa" "*,sse2_noavx,avx")
    (set_attr "type" "multi,sseadd,sseadd")
@@ -2987,7 +2987,7 @@ (define_split
          (match_operand:V2QI 1 "general_reg_operand")
          (match_operand:V2QI 2 "general_reg_operand")))
    (clobber (reg:CC FLAGS_REG))]
-  "(!TARGET_PARTIAL_REG_STALL || optimize_function_for_size_p (cfun))
+  "!TARGET_PARTIAL_REG_STALL
    && reload_completed"
   [(parallel
      [(set (strict_low_part (match_dup 0))
@@ -3021,7 +3021,7 @@ (define_split
          (match_operand:V2QI 1 "sse_reg_operand")
          (match_operand:V2QI 2 "sse_reg_operand")))
    (clobber (reg:CC FLAGS_REG))]
-  "(!TARGET_PARTIAL_REG_STALL || optimize_function_for_size_p (cfun))
+  "!TARGET_PARTIAL_REG_STALL
    && TARGET_SSE2 && reload_completed"
   [(set (match_dup 0)
         (plusminus:V16QI (match_dup 1) (match_dup 2)))]
--cut here--

So, removing optimize-size bypass successfully compiles the testcase.=