--- Comment #2 from nmiell at comcast dot net 2009-09-25 17:12 ---
Even if it thinks the arrays aren't aligned, that doesn't explain the
completely unnecessarily zeroing of XMM0 or the choice of the load high/low
instructions over MOVUPS.
--
http://gcc.gnu.org/bugzilla/sh
gcc
Version: 4.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
GCC build triplet: x86_64-linux-gnu
GCC h
/error
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
http://gcc.gnu.org/bugzilla
: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30455
--- Comment #1 from nmiell at comcast dot net 2006-11-10 06:59 ---
Created an attachment (id=12585)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12585&action=view)
little C demonstration
This is a test function in C that demonstrate a case where gcc could be using
Jr
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
GCC target triplet: i?86-*-*, x86_64
uiltins
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
GCC target triplet: i?86-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28909
iority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27080
--- Comment #1 from nmiell at comcast dot net 2006-03-05 23:31 ---
On FC4 AMD64, compiling:
#include
void rotate(int x[3])
{
std::rotate(&x[0], &x[1], &x[2]);
}
int main(int argc, char* argv[])
{
int x[3] = { 0, 1, 2 };
rotate(x);
retur
--- Comment #4 from nmiell at comcast dot net 2006-03-01 05:54 ---
This also occurs on AMD64 without any special attributes (the ABI passes params
in registers already).
When compiling:
extern char c2(char);
char c1(char c) { return c2(c); }
with gcc -Wall -O2 -S tail-char.c
using gcc
--- Additional Comments From nmiell at comcast dot net 2005-06-19 18:57
---
(In reply to comment #1)
> Confirmed, some targets already have this. I am just making this for ia32.
Could you clarify what you meant by that? Should I file another bug for AMD64?
--
http://gcc.gnu.
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nmiell at comcast dot net
CC: gcc-bugs at gcc dot gnu dot org
http
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