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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95218] [11 Regression] FAIL:
 gcc.target/i386/fma_run_double_1.c execution test since
 r11-455-g94f687bd9ae37ece
Date: Wed, 20 May 2020 22:49:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95218

--- Comment #17 from Uro=C5=A1 Bizjak <ubizjak at gmail dot com> ---
The problem is with commutative operands, these somehow confuse postreload
pass.

I'll commit partial revert that basically puts back:

 (define_insn_and_split "*<code><mode>2"
-  [(set (match_operand:VF 0 "register_operand" "=3Dx,v")
+  [(set (match_operand:VF 0 "register_operand" "=3Dx,x,v,v")
        (absneg:VF
-         (match_operand:VF 1 "vector_operand" "%0,v")))
-   (use (match_operand:VF 2 "vector_operand" "xBm,vm"))]
+         (match_operand:VF 1 "vector_operand" "0,xBm,v,m")))
+   (use (match_operand:VF 2 "vector_operand" "xBm,0,vm,v"))]

with manual swapping of operands.=