Version 12.0.2

[elie27]

Had a previous post , but got no-working reply on it. So I will try this thread again.
I am using Intel C++ compiler version 12.0.2 and I want to output assembly files that use Intel Syntax. It is currently displaying them in AT&T syntax. I am using ubuntu and I tried icpc -S -masm=intel Radar-Main.cpp it is giving me the following:"icpc: command line warning #10159: invalid argument for option '-m' " I also tried -use-masm=intel, -asm=intel --masm=intel...So I tried like most permutations of the m a s m letters.
Anyone knows how I can do that?
Thanks

[Judith_W_Intel]

The -use_msasm controls the type of inline assembly code that isvalid in your source file, not the type of assembly that is produced by the compiler when you specify -S. By default we produce the same assembly output as our reference compiler on ubuntu (Gnu) and there's no switch available to change that.

[elie27]

Thanks for your quick reply

Well GNU have the flag, -msasm=intel to output assembly to intel syntax. There is absolutely no map for that into ICC?

Thanks again:)

[Om_S_Intel]

I get error when using -msasm=intel in gcc.

$ gcc -S -msasm=intel -c tstcase.cpp

cc1plus: error: unrecognized command line option "-msasm=intel"

[elie27]

Sorry my bad this is it:
"g++ -S -masm=intel Desktop/parsec-2.1/pkgs/apps/swaptions/src/HJM_Securities.cpp"
and this is part of the file that I got:
HJM_Securities.s
"
.file "HJM_Securities.cpp"
.intel_syntax noprefix
.local _ZStL8__ioinit
.comm _ZStL8__ioinit,1,1
mov eax, DWORD PTR [ebp+8]
mov eax, DWORD PTR [eax]
mov DWORD PTR [ebp-28], eax
"
which is clearly intel Syntax. Now I got 2 conflicting answers from both threads which I opened. the first one claimed that ICC linux compiler syntax can be changed to intel syntax and by default in windows it is intel syntax. While here I was told only at&t syntax.
which one is correct?

[Om_S_Intel]

Could you provide the pointer for the other thread?

[elie27]

this is the thread

http://software.intel.com/en-us/forums/showthread.php?t=81397&o=a&s=lr

I quote:"Some of the linux tools should recognize -masm=intel switch to over-ride the overwhelmingly preferred att default"

I am ready to do anything to get the switch to the intel syntax just tell me which platform would get me that syntax, because Intel should have it's own syntax also gcc has it! so there are a lot of good signs for me

Thank you for your reply:) we need to cooperate to solve my issue

[TimP]

As gcc and other linux tools support the -masm=intel switch, it's reasonable to submit a feature request on your premier.intel.com account, asking whether icc could be made to support it.
You didn't say originally for which linux tools you wanted the switch. I agree that it's a little strange for some Intel linux tools to default to intel format and others to provide no option to use that format.

[Om_S_Intel]

Intel compilerfor Linux does not genrate Intel assembly. You may use gcc for this.

[elie27]

does the windows version of the compiler generate assembly for Intel syntax?

[mecej4]

Yes, but note that you have to deal with the fact that the register usage conventions (i.e., the ABI-s) are different in Windows and Linux.

[Mark_S_Intel1]

I have good news. We have implemented the feature you requested:

-masm=dialect

Output asm instructions using selected dialect.

Supported choices are `intel' or `att' (the default one).

This would match gcc's option behavior and syntax:

-masm=att ==> No changes to current behavior (default).

-masm=intel ==> produce disassembly in Intel ASM format

This feature will be available in a future product update. We will inform you via this forum thread when a compiler update containing this feature becomes available.

Thanks,

--mark

[elie27]

Hello Mark,

Thank you, that really saved me some time! will be looking forward to using it.

Regards,

Elie

[Mark_S_Intel1]

The latest icc compiler version 12.1 supports that feature. The compiler options are -S masm=intel .

> icc -V

Intel C Intel 64 Compiler XE for applications running on Intel 64, Version 12.1.1.256 Build 20111011

// default is to use att syntax

> icc -S hello.c

> more hello.s

main:

..B1.1: # Preds ..B1.0

..___tag_value_main.1: #4.1

pushq %rbp #4.1

..___tag_value_main.3: #

movq %rsp, %rbp #4.1

..___tag_value_main.4: #

andq $-128, %rsp #4.1

subq $128, %rsp #4.1

movl $3, %edi #4.1

..___tag_value_main.6: #4.1

call __intel_new_proc_init #4.1

// use Intel syntax

> icc -S -masm=intel hello.c

> more hello.s

main:

..B1.1: # Preds ..B1.0

..___tag_value_main.1: #4.1

push rbp #4.1

..___tag_value_main.3: #

mov rbp, rsp #4.1

..___tag_value_main.4: #

and rsp, -128 #4.1

sub rsp, 128 #4.1

mov edi, 3 #4.1

..___tag_value_main.6: #4.1