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120 Commits

Author SHA1 Message Date
florian
cbefdcf887 * patch by Martin Friebe to avoid wrong debugger output, resolves #25584 
git-svn-id: trunk@26794 -
 2014-02-16 10:11:20 +00:00
nickysn
1de847c754 * fixed error in comment 
git-svn-id: trunk@26507 -
 2014-01-18 17:00:10 +00:00
florian
4d5119bf1c * fixes several issues which cause warnings by the dfa code when using it to detect uninitialized variables 
git-svn-id: trunk@26161 -
 2013-12-01 17:02:08 +00:00
Jonas Maebe
0302453912 * disabled the lea->add transformation added in r25907 because it breaks 
webtbs/tw15694.pp. Such transformation require liveness analysis of
    the flags

git-svn-id: trunk@26001 -
 2013-11-09 18:42:23 +00:00
florian
1843ed59b5 * set p to a valid instruction 
git-svn-id: trunk@25912 -
 2013-11-01 20:09:28 +00:00
florian
a16ceb6cdf * replace lea by add if possible 
git-svn-id: trunk@25907 -
 2013-11-01 19:01:33 +00:00
florian
80f8f66c6e * set file positions correctly in PeepHoleOptPass1 
git-svn-id: trunk@25906 -
 2013-11-01 19:01:31 +00:00
florian
4148637c8c * fold mov/lea/mov as well if possible 
git-svn-id: trunk@25905 -
 2013-11-01 19:01:29 +00:00
florian
524cde8140 + MatchReference 
* refactored some code

git-svn-id: trunk@25904 -
 2013-11-01 19:01:26 +00:00
florian
440cb33e80 * continue to use lea to adjust the stack pointer, it is the recommended way 
git-svn-id: trunk@25903 -
 2013-11-01 19:01:24 +00:00
florian
5eb578a44c * generate sub instead of add from lea if appropriate 
git-svn-id: trunk@25902 -
 2013-11-01 19:01:22 +00:00
florian
d575a435c3 * some debugging infrastructure 
git-svn-id: trunk@25900 -
 2013-11-01 19:01:17 +00:00
florian
bfbb0c5b9d * optimize mov/lea 
git-svn-id: trunk@25899 -
 2013-11-01 19:01:14 +00:00
nickysn
f288859fba * i386 optimization - remove the test/or %y, %y instruction in the sequence: 
shl/sal/shr/sar $x, %y
  test/or %y, %y
  jz/jnz/setz/setnz/cmovz/cmovnz ...

git-svn-id: trunk@25881 -
 2013-10-29 17:34:32 +00:00
florian
507edb16de * use add/sub instead of inc/dec on modern CPUs when optimizing for speed 
git-svn-id: trunk@25057 -
 2013-07-07 19:50:13 +00:00
florian
2ea6979277 * handle Movzl/Op/Mov optimization correctly, resolves #23431 
git-svn-id: trunk@23128 -
 2012-12-09 21:27:05 +00:00
florian
df01717c38 * mov x, %treg; mov %treg, y might be only optimized if y does not use treg 
git-svn-id: trunk@22015 -
 2012-08-05 17:48:28 +00:00
Jonas Maebe
dd03bc3e66 * i386 version of fix from r21113 
git-svn-id: trunk@21127 -
 2012-04-29 22:27:00 +00:00
florian
a6b2fcfe22 * fixes breakage of r17766, should resolve #19598 
git-svn-id: trunk@17814 -
 2011-06-23 21:30:40 +00:00
florian
b00a610aec * optimize andb/w const,reg andw/l const,reg sequences as well 
git-svn-id: trunk@17766 -
 2011-06-18 15:22:09 +00:00
Jonas Maebe
d10f46ec59 * skip instructions containing a reference with a segment prefix (fixes 
mantis #18113)

git-svn-id: trunk@16619 -
 2010-12-23 15:24:29 +00:00
Jonas Maebe
8f22a5d224 * perform simple imul->lea transformations also for Pentium 3-class target 
cpus (default target, and should actually be faster there too;
    mantis #18056)

git-svn-id: trunk@16441 -
 2010-11-26 10:30:46 +00:00
Jonas Maebe
ffc9e07275 * only don't perform the complex mul->lea optimizations for the Pentium3 
git-svn-id: trunk@15344 -
 2010-05-30 12:57:52 +00:00
Jonas Maebe
7d459cf12a * the compiler now explicitly keeps track of the minimally guaranteed 
alignment for each memory reference (mantis #12137, and
    test/packages/fcl-registry/tregistry1.pp on sparc). This also
    enables better code generation for packed records in many cases.
  o several changes were made to the compiler to minimise the chances
    of accidentally forgetting to set the alignment of memory references
    in the future:
    - reference_reset*() now has an extra alignment parameter
    - location_reset() can now only be used for non LOC_(C)REFERENCE,
      use location_reset_ref() for those (split the tloc enum so the
      compiler can catch errors using range checking)

git-svn-id: trunk@12719 -
 2009-02-08 13:00:24 +00:00
Jonas Maebe
7bfe1f7865 * fixed indentation 
* fixed use of instruction instance after it has been freed

git-svn-id: trunk@11761 -
 2008-09-13 12:20:01 +00:00
florian
e27937106f - removed obsolete USECMOV define 
git-svn-id: trunk@11645 -
 2008-08-24 12:46:42 +00:00
yury
491f0fa1d8 * Replaced all user defined warnings by TODO comments to reduce compiler noise. 
git-svn-id: trunk@11443 -
 2008-07-23 11:00:03 +00:00
yury
fd0ed50331 * Removed/commented more unused variables. 
* Fixed some uninitialized variable warnings.

git-svn-id: trunk@11442 -
 2008-07-23 10:48:53 +00:00
Jonas Maebe
3b72bf98b0 * fixed short/smallint add/sub peephole in case of operations with 
only one operand + documented it by example (mantis #11223)
    

git-svn-id: trunk@10828 -
 2008-04-27 21:01:52 +00:00
Jonas Maebe
a3b877247c * don't perform call/jmp into push/jmp in case we're generating 
pic, as that optimization is invalid in that case

git-svn-id: trunk@10655 -
 2008-04-13 17:03:07 +00:00
daniel
459382faa8 + Teach peephole optimizer the cmc/adc trick I used in int_str. 
git-svn-id: trunk@9799 -
 2008-01-19 21:47:37 +00:00
peter
cbac667753 * check for eax,edx,ecx,ebx that support 8,16 bit registers in shortint add/sub peephole 
and update register size of substructor

git-svn-id: trunk@9351 -
 2007-11-29 21:16:32 +00:00
peter
fcb37c4fa4 * peephole added for non-longint:=non-longint+X 
git-svn-id: trunk@9329 -
 2007-11-25 14:32:59 +00:00
florian
c219b1f753 * fixed/enabled andl/addl/... xx,reg1 orl reg1,reg1 setxx/jxx/cmovxx optimization 
git-svn-id: trunk@8902 -
 2007-10-21 19:54:09 +00:00
Jonas Maebe
20206500aa * don't change a sequence of shifts and sub/adds into a lea() in case 
the flags are read afterwards (broke shldl/sub/sbb sequence generated
    for 64 bit "*2", which appears in bitpacked size calculation)

git-svn-id: trunk@7336 -
 2007-05-14 20:37:42 +00:00
daniel
c23bbe24bf + Add peoplehole optimization to optimize "smallset+[x]" and "smallset-[x]". 
git-svn-id: trunk@7188 -
 2007-04-29 10:32:18 +00:00
florian
85d63d9fa9 * settings refactored 
git-svn-id: trunk@5094 -
 2006-10-30 18:02:58 +00:00
Jonas Maebe
01cf70d354 * don't change "mov const,ref; mov ref,reg" into "mov const,reg; mov reg,ref" 
if ref depends on reg

git-svn-id: trunk@3002 -
 2006-03-21 15:25:16 +00:00
peter
b7fe6797bf Merged revisions 2921-2922,2925 via svnmerge from 
http://svn.freepascal.org/svn/fpc/branches/linker/compiler

........
r2921 | peter | 2006-03-15 08:35:00 +0100 (Wed, 15 Mar 2006) | 2 lines

  * pass ObjectWriter to ObjectOuput

........
r2922 | peter | 2006-03-15 12:40:30 +0100 (Wed, 15 Mar 2006) | 2 lines

  * refactor asmdata

........
r2925 | peter | 2006-03-15 16:09:39 +0100 (Wed, 15 Mar 2006) | 3 lines

  * add cfi to asmdata
  * move asmlist, asmcfi, asmdata to own unit

........

git-svn-id: trunk@2932 -
 2006-03-16 08:52:22 +00:00
peter
d8dc5679e3 * aktcputype and aktoptimizecputype was missing in the previous optimization commits 
git-svn-id: trunk@2907 -
 2006-03-13 12:29:56 +00:00
peter
b6e35a200e * rewrite of optimizer options 
git-svn-id: trunk@2901 -
 2006-03-13 09:05:50 +00:00
peter
785550d7e3 Merged revisions 2669,2673,2677,2683,2696,2699-2702,2704,2708,2712-2715,2718,2722-2723,2728-2730,2740,2769 via svnmerge from 
svn+ssh://peter@www.freepascal.org/FPC/svn/fpc/branches/linker/compiler

........
r2669 | peter | 2006-02-23 09:31:21 +0100 (Thu, 23 Feb 2006) | 2 lines

  * add compiler dir

........
r2673 | peter | 2006-02-23 17:08:56 +0100 (Thu, 23 Feb 2006) | 2 lines

  * enabled more code

........
r2677 | peter | 2006-02-24 17:46:29 +0100 (Fri, 24 Feb 2006) | 2 lines

  * pe stub and headers

........
r2683 | peter | 2006-02-25 23:13:24 +0100 (Sat, 25 Feb 2006) | 2 lines

  * section options cleanup

........
r2696 | peter | 2006-02-26 20:27:41 +0100 (Sun, 26 Feb 2006) | 2 lines

  * fixed typecasts

........
r2699 | peter | 2006-02-26 23:04:32 +0100 (Sun, 26 Feb 2006) | 2 lines

  * simple linking works

........
r2700 | peter | 2006-02-27 09:44:50 +0100 (Mon, 27 Feb 2006) | 2 lines

  * internal linker script

........
r2701 | peter | 2006-02-27 12:05:12 +0100 (Mon, 27 Feb 2006) | 2 lines

  * make elf working again

........
r2702 | peter | 2006-02-27 14:04:43 +0100 (Mon, 27 Feb 2006) | 3 lines

  * disable dwarf for smartlinking with .a
  * fix section start in new .a file

........
r2704 | peter | 2006-02-27 18:30:43 +0100 (Mon, 27 Feb 2006) | 2 lines

  * stab section fixes

........
r2708 | peter | 2006-02-28 19:29:17 +0100 (Tue, 28 Feb 2006) | 2 lines

  * basic work to merge stabs sections

........
r2712 | peter | 2006-02-28 23:17:48 +0100 (Tue, 28 Feb 2006) | 2 lines

  * unload tmodules before linking

........
r2713 | peter | 2006-02-28 23:18:51 +0100 (Tue, 28 Feb 2006) | 2 lines

  * fixed stabs linking

........
r2714 | peter | 2006-02-28 23:19:19 +0100 (Tue, 28 Feb 2006) | 2 lines

  * show code and data size

........
r2715 | peter | 2006-02-28 23:25:35 +0100 (Tue, 28 Feb 2006) | 2 lines

  * unload .stabs from objdata after it is merged

........
r2718 | peter | 2006-03-01 12:24:38 +0100 (Wed, 01 Mar 2006) | 3 lines

  * memsize/datasize cleanup
  * check for exports/resources when adding module to linker

........
r2722 | peter | 2006-03-03 09:12:20 +0100 (Fri, 03 Mar 2006) | 2 lines

  * new TObjSymbol splitted from TAsmSymbol

........
r2723 | peter | 2006-03-03 14:08:55 +0100 (Fri, 03 Mar 2006) | 2 lines

  * coff fixes after recent objsymbol changes

........
r2728 | peter | 2006-03-03 22:43:04 +0100 (Fri, 03 Mar 2006) | 2 lines

  * fixed coff writer

........
r2729 | peter | 2006-03-04 01:10:32 +0100 (Sat, 04 Mar 2006) | 2 lines

  * fix read-only opening

........
r2730 | peter | 2006-03-04 01:11:16 +0100 (Sat, 04 Mar 2006) | 2 lines

  * Read edata from DLLs, basic work

........
r2740 | peter | 2006-03-04 21:13:43 +0100 (Sat, 04 Mar 2006) | 3 lines

  * deletedef added
  * don't remove defs from index when we are already clearing everything

........
r2769 | peter | 2006-03-05 21:42:33 +0100 (Sun, 05 Mar 2006) | 4 lines

  * moved TObj classes to ogbase
  * ObjSection.SymbolRefs and SymbolDefines list
  * DLL importing

........

git-svn-id: trunk@2771 -
 2006-03-05 21:10:37 +00:00
peter
5ac78d1ec3 * fix range error 
git-svn-id: trunk@2640 -
 2006-02-20 06:59:14 +00:00
daniel
e138c9c081 + Add nice little peephole trick 
+ Add a comment to another

git-svn-id: trunk@2602 -
 2006-02-15 22:03:07 +00:00
Jonas Maebe
a68ca7eb2a * fixed web bug #4768 + test 
git-svn-id: trunk@2479 -
 2006-02-08 19:22:26 +00:00
florian
e43a1223ff * fixed refs book keeping 
git-svn-id: trunk@2211 -
 2006-01-07 21:10:39 +00:00
florian
8b01dce70a * cmov ref,reg disabled because ref might be never nil 
git-svn-id: trunk@1407 -
 2005-10-16 12:25:58 +00:00
peter
a3ab2053c9 * support multiple asmlabel types, renamed getlabel to 
getjumplabel and added type para to getlabel for specific types
  * moved lineinfo generation from assemble and aggas to dbgstabs

git-svn-id: trunk@1120 -
 2005-09-18 21:16:10 +00:00
fpc
790a4fe2d3 * log and id tags removed 
git-svn-id: trunk@42 -
 2005-05-21 09:42:41 +00:00
fpc
50778076c3 initial import 
git-svn-id: trunk@1 -
 2005-05-16 18:37:41 +00:00