CodeWarrior for MCUのトピックRe: S12 CW11 internal compiler error - report to cw_bug@freescale.com

S12 CW11 internal compiler error - report to cw_bug@freescale.com

StefanoGattazzo — Mon, 06 Aug 2018 08:32:19 GMT

Hi Team,

see below what my customer wrote:

I get the following compiler error

..\BSW\KERNEL\MCAL_S12x\mcu\Mcu.c:211: internal compiler error (report to

..\BSW\KERNEL\MCAL_S12x\mcu\Mcu.c:211: <cw_bug@freescale.com>)

..\BSW\KERNEL\MCAL_S12x\mcu\Mcu.c:211: while executing in file 'Coloring.c'

..\BSW\KERNEL\MCAL_S12x\mcu\Mcu.c:211: line: 698

..\BSW\KERNEL\MCAL_S12x\mcu\Mcu.c:211: (compiling 'Mcu_InitClock' in 'Mcu.c')

Trying to compile the attached function (mcu.c) for the S12 target.

I’m using the following compiler version (mwccs12lisa):

CodeWarrior C/C++ for S12/L-ISA.

Version 5.0.44 (build 17292)

Runtime Built: Oct 20 2017 21:44:00

Using the options in the attached file Compiler.opt.

Any indication from your side about the cause of the error, and a possible workaround or fix, would be very welcome.

This issue is quite urgent for our development.

Thanks and BR

Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

Alice_Yang — Mon, 06 Aug 2018 09:52:22 GMT

Hello Stefano Gattazzo,

Could you please tell me the chip number , also share a project that I can reproduce the error on my side,

then if it is really a bug , I will report it to CW development team.

Have a great day,
TIC

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Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

StefanoGattazzo — Mon, 06 Aug 2018 12:29:48 GMT

The device is MC9S12VML12SVBLIN (mounted on evaluation board).

Attached a bareboard project.

BR
Stefano

Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

kef2 — Mon, 06 Aug 2018 12:51:00 GMT

Hi Stefano

if you didn't workaround it, it seems compiler is having problem with these quite similar lines

u8CpmuRefDivReg = ( u8RefFrq << 6 ) | ( u8RefDiv & 0x0FU );

u8CpmuSynrReg = ( u8VcoFrq << 6U ) | ( u8SynDiv & 0x3FU );

Splitting them into simpler expressions makes compiler happy:

u8CpmuRefDivReg = ( u8RefFrq << 6 );

u8CpmuRefDivReg |= ( u8RefDiv & 0x0FU );

u8CpmuSynrReg = ( u8VcoFrq << 6U );

u8CpmuSynrReg |= ( u8SynDiv & 0x3FU );

Edward

Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

mikedoidge — Thu, 07 May 2020 19:56:29 GMT

Hello StefanoGattazzo‌,

Checked with our compiler experts, this is their assessment:

>>>

There's an error your program, which by definition of the C language standard, would cause undefined behavior of the compiler. Typically, undefined behavior would mean undefined at runtime, but the compiler protected the user against unpredictable runtime behavior by just exiting with an internal error.

Std_ReturnType Mcu_InitClock( void )
{
uint16 u16FRef, u16FVco;
uint8 u8SynDiv, u8RefFrq, u8VcoFrq, u8RefDiv;
uint8 u8Tmp, u8CpmuRefDivReg, u8CpmuSynrReg;
boolean bFound;

Mcu_InitClock is declared and defined with return type Std_ReturnType.
The function does not return a value:

CPMUHTCTL = 0x00U;
CPMUVREGCTL = 0x01U;
// #endif
}

This is an error in the program.

<<<

Best Regards,

Mike

Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

kef2 — Sun, 10 May 2020 19:49:17 GMT

Hi,

Wow. I believe decent compilers just emit warning or error message clearly stating that return statement is missing.

BTW error message clearly stated ir is an internal compiler error and asks to report about it to specified email address.

Edward

Re: S12 CW11 internal compiler error - report to cw_bug@freescale.com

raja1999 — Wed, 13 Jan 2021 18:48:26 GMT

Hello,

How did you find error? Any hint from compiler?

Basically I am getting error on ending line of a function (at closing curly brace).

Here's my error:

<fileName>.c|1677|0|1|91472|1)
=}
>internal compiler error (report to <cw_bug@freescale.com>)
>while executing in file 'ExpandIR.c' line: 7135
>(compiling '<functionName>' in '<fileName>.c')

Errors caused tool to abort.
NMAKE : fatal error U1077: '"C:\Freescale\CW MCU v11.1\MCU\S12lisa_Tools\Build_Tools\mwccs12lisa.exe"'
: return code '0x1'
Stop.
NMAKE : fatal error U1077: 'C:\apps\Nmake\nmake.EXE' : return code '0x2'
Stop.

Usually compiler lay out their concerns for our code. But this one just tells line no.! Installed it today.

Edit: I emptied out function, the error vanished.

Also, I changed compiler optimization level from 2 to 0, it worked. No error. Any opt level except 0 generates error.

P.S: I am using evaluation version of compiler (awaiting license from customer). Is this error because of any free eval limit?