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From: "giuliano.belinassi at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/105649] New: Wrong .localentry address on powerpc64le
 with -fpatchable-function-entry=1
Date: Wed, 18 May 2022 19:56:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105649

            Bug ID: 105649
           Summary: Wrong .localentry address on powerpc64le with
                    -fpatchable-function-entry=3D1
           Product: gcc
           Version: 11.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: giuliano.belinassi at gmail dot com
  Target Milestone: ---

(this bug triggered PR105647)

With the following input file:
```
struct WinsockInterfaceClass
{
    WinsockInterfaceClass(void);


    virtual int Get_Protocol(void)
    {
        return 0;
    };
};

WinsockInterfaceClass::WinsockInterfaceClass(void)
{
}
```
Saved as test.C, compiling with

> powerpc64le-suse-linux-gcc-11 -c -fpatchable-function-entry=3D1 test.C

Results in the following error:
```
/tmp/cczW6LfZ.s: Assembler messages:
/tmp/cczW6LfZ.s:56: Error: .localentry expression for
`_ZN21WinsockInterfaceClassC2Ev' is not a valid power of 2
```

The reason for that maybe is because the addition of nops cause the address=
 of
.localentry to be shifted according to how many nops inserted.

OTOH

> powerpc64le-suse-linux-gcc-11 -c -fpatchable-function-entry=3D2 test.C

works.=