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Bug#75773: marked as done ([PR optimization/3507]: appalling optimisation with sub/cmp on i386)

Your message dated Fri, 21 Aug 2015 13:43:08 +0000
with message-id <[🔎] E1ZSmb6-0004jv-26@franck.debian.org>
and subject line Bug#796274: Removed package(s) from unstable
has caused the Debian Bug report #75773,
regarding [PR optimization/3507]: appalling optimisation with sub/cmp on i386
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
75773: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=75773
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc
Version: 1:2.95.2-16
Severity: normal

For the file

unsigned long foo(unsigned long a, unsigned long b) {
	unsigned long c = a - b;

	if (a < b) {
		c += 100;
	}

	return c;
}

gcc -O2 -S generates

	.file	"subcmp.c"
	.version	"01.01"
gcc2_compiled.:
.text
	.align 4
.globl foo
	.type	 foo,@function
foo:
	pushl %ebp
	movl %esp,%ebp
	movl 8(%ebp),%ecx
	movl 12(%ebp),%eax
	movl %ecx,%edx
	subl %eax,%edx
	cmpl %eax,%ecx
	jae .L3
	addl $100,%edx
.L3:
	movl %edx,%eax
	leave
	ret
.Lfe1:
	.size	 foo,.Lfe1-foo
	.ident	"GCC: (GNU) 2.95.2 20000220 (Debian GNU/Linux)"

The cmpl after the subl is unnecessary.

gcc-ss 2.97-0.1 generates pretty much the same code.

-- System Information
Debian Release: woody
Kernel Version: Linux gondor 2.2.17 #1 Mon Sep 11 22:22:16 EST 2000 i586 unknown

Versions of the packages gcc depends on:
ii  binutils            2.10.0.27-0.cvs2000 The GNU assembler, linker and binary utilities.
ii  cpp                 2.95.2-16           The GNU C preprocessor.
ii  libc6               2.1.95-1            GNU C Library: Shared libraries and Timezone data

--- End Message ---
--- Begin Message --- 
Version: 4.6.4-7+rm

Dear submitter,

as the package gcc-4.6 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/796274

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)

--- End Message ---
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