From:   David Goodwin <goodwin@tensilica.com>
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Message-ID: <14997.49313.943861.677839@heart.hq.tensilica.com>
Date:   Thu, 22 Feb 2001 17:45:05 -0800 (PST)
To:     pro64-support@oss.sgi.com
Subject: unnecessary symbol definitions in C++
Reply-to: goodwin@tensilica.com
Sender: owner-pro64-support@oss.sgi.com
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I've looked at this some, but I'm not having any luck fixing it.  sgiCC
generates unnecessary definitions of __FUNCTION__ and
__PRETTY_FUNCTION__. An example that shows this behavior is attached.

WFE_Initialize_Decl claims it ignores unnecessary declarations by checking
DECL_IGNORED_P, but that doesn't seem to work.


> cat hello.cc
#include <stdio.h>

int
main ()
{
  printf("Hello World\n");
}
> sgiCC -v
SGIcc Compilers: Version 0.01.0-12
> sgiCC -O2 hello.cc -S
> cat hello.s
	//  /usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/be::0.01.0-12

	//-----------------------------------------------------------
	// Compiling hello.cc (/tmp/ccI.XOud7p)
	//-----------------------------------------------------------

	//-----------------------------------------------------------
	// Options:
	//-----------------------------------------------------------
	//  Target:Itanium, ISA:ISA_1, Pointer Size:64
	//  -O2	(Optimization level)
	//  -g0	(Debug level)
	//  -m1	(Report warnings)
	//-----------------------------------------------------------


	.section .text, "ax", "progbits"
	.align	16

	.section .rodata, "a", "progbits"
	.align	8

	.section .sbss, "wa", "nobits"
	.align	1

	.section .bss, "wa", "nobits"
	.align	1

	.section .sbss
	.org 0x0
	.align	0
	.type	__func___82, @object
	.size	__func___82, 1
__func___82:	// 0x0
	.skip 1
	.org 0x1
	.align	0
	.type	__FUNCTION___84, @object
	.size	__FUNCTION___84, 1
__FUNCTION___84:	// 0x1
	.skip 1

	.section .bss
	.org 0x0
	.align	0
	.type	__PRETTY_FUNCTION___83, @object
	.size	__PRETTY_FUNCTION___83, 10
__PRETTY_FUNCTION___83:	// 0x0
	.skip 10
	.section .text

	// Program Unit: main
	.proc	main#
	.global	main#
main#:	// 0x0
	.file	1 "/usr/local/home/goodwin/hello.cc"
	.loc	1	5	0
//   1  #include <stdio.h>
//   2  
//   3  int
//   4  main ()
//   5  {
.BB1_main:	// 0x0
//<freq>

...