GCC ARM Improvement Project

On this page the main results of the group are collected. Use the table to navigate the problem reports submitted by the group, and see the mail activity for each PR. Mail activity contains PR trails, mailing list threads and private mails. If a patch is available, but is has not been installed to GCC sources then you can download it from here and install it to your system by your own. The following patches are installed in official GCC sources:

No	Short description	Arrival date	Bugzilla #	PR Status	Activity	Patch mail	Download/ More info
1	Move and compare in one instruction	2003-02-11	9663	open	mails	mail	.gz
2	Constant pools are not shared among functions	2003-02-14	9702	open	mails
3	Accessing data through constant pool more times could be solved in less instructions	2003-02-14	9703	open	mails
4	Unnecessary range test in switches with less than 4 cases	2003-02-14	9707	*patched*	mails	mail	txt
5	With -Os optimization increases size if the loop contains array element access	2003-02-17	9723	open	mails
6	Gcc should drop unused static functions from translation units	2003-02-17	9724	*patched*	mails
7	With -Os while and for loops can be arranged with one test instead of two	2003-02-18	9739	redundant	mails		.gz
8	Gcc should use swp instruction	2003-02-19	9757	refused	mails
9	Combine cannot do its job due to arithmetic expression evaluation order	2003-02-19	9759	*patched*	mails	mail	alternative patch
10	Combine cannot do its job because immediate operand is used instead of register	2003-02-19	9760	open	mails
11	ARM: Peephole for multiple load/store could be more effective.	2003-02-24	9831	open	mails
12	ARM: Arithmetic and move could be combined using liveness information	2003-02-24	9832	already solved	mails
13	Some standard C function calls should not be replaced when optimizing for size	2003-03-05	9967	*patched*	mails		more info
14	Use of function call return value	2003-03-14	10076	wrong example	mails
15	Unnecessary move before use of function call return value	2003-03-17	10122	*patched*	mails
16	ARM: subsequent use of plus and minus operators could be improved	2003-03-27	10242	open	mails	mail	.tgz
17	Unoptimized complementary conditional instructions	2003-08-06	11820	duplicated	mails
18	Operator implementation as a library call fails with constants	2003-08-06	11821	*patched*	mails		more info
19	Formulated jumps for switch	2003-08-06	11822	suspended	mails
20	Optimizing large jump tables for switch statements	2003-08-06	11823	*patched*	mails		more info
21	[ARM] Parameter passing via stack could be improved	2003-08-06	11824	open	mails
22	[ARM] Redundant move in some cases (dead code before return)	2003-08-06	11825	open	mails
23	[ARM] Minor register allocation problem before function return	2003-08-06	11826	open	mails
24	Unnecessary call to an empty function	2003-08-06	11830	open	mails
25	[ARM] Logical expression evaluation with condition fields	2003-08-06	11831	open	mails
26	Optimization of common code in switch statements	2003-08-06	11832	open	mails
27	Disable some features in fold-const.c	2003-10-15		*patched*	mails	mail	more info
28	Missing length attribute in cond_return_inverted	2004-06-18		*patched*	mails	mail	more info
29	[ARM] thumb branch out of range	2004-07-19	16626	fixed
30	[ARM] segmentation fault on float accesses in the ?: operators' body	2004-07-19	16624	fixed
31	[ARM] better optimalization of EOR/MOV block.	2004-11-19	18560	open

GCC ARM Improvement Project

Department of Software Engineering, University of Szeged

Results, Problem Reports and Patches