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445 Commits

Author SHA1 Message Date
florian
5c67fcc43f + change always floating point divisions into multiplications if they are a power of two, 
this is an exact operation so it is always allowed
* change only divisions by normal numbers into multiplications

git-svn-id: trunk@29085 -
 2014-11-16 20:47:38 +00:00
Tomas Hajny
3ee3542744 * boolean constant instead of IFDEFs for detection of microcontroller support 
git-svn-id: trunk@29052 -
 2014-11-10 12:34:59 +00:00
pierre
aa6b62cf4c Add new procedure option: po_syscall_has_libsym, 
include this option only of libsym field
 is non NIL.
 Use this option to only write redef of libsym if needed.
 Adapt ppudump source to this new procedure option.

git-svn-id: trunk@28732 -
 2014-10-03 19:26:16 +00:00
Károly Balogh
8acc260a09 m68k: added the byterev and ff1 CF ISAA+/ISAC instructions, also added byterev as a CPU capability 
git-svn-id: trunk@28679 -
 2014-09-16 01:39:02 +00:00
Károly Balogh
3b205742b6 m68k: also try to optimize a special case of OP_SAR using the SWAP instruction 
git-svn-id: trunk@28657 -
 2014-09-14 12:47:07 +00:00
Károly Balogh
d561e8ab57 m68k: generate smarter shifting/rotation code on 68k, for example by utilizing the SWAP instruction 
git-svn-id: trunk@28617 -
 2014-09-07 23:46:46 +00:00
Károly Balogh
f91ae2700c m68k: added CPUM68K_HAS_ROLROR capability flag 
git-svn-id: trunk@28616 -
 2014-09-07 23:45:51 +00:00
Károly Balogh
9991ee4165 m68k: support loading of refs to data registers, also when explicit paraloc is set and it's a register, use that directly, this fixes several syscall-related corner cases on Amiga 
git-svn-id: trunk@28582 -
 2014-09-02 17:38:34 +00:00
sergei
a5958d6e5f * m68k: do not emit moves between same register, they end up in wrong code in some cases when register needs to be spilled (and entirely useless otherwise). 
git-svn-id: trunk@28545 -
 2014-08-30 22:00:54 +00:00
Károly Balogh
392da9e43f * fix warnings when compiling the compiler with DFA optimizer enabled on m68k 
git-svn-id: trunk@28499 -
 2014-08-20 13:49:47 +00:00
Károly Balogh
ccc9bc0941 m68k: plain 68000 also needs extra handling for large offsets 
git-svn-id: trunk@28423 -
 2014-08-16 15:14:34 +00:00
Károly Balogh
9b0bf91076 m68k: do not generate CLR instructions to memory references on plain 68k. there this instruction also causes reads from the address, which is slow and can have side effects. 
git-svn-id: trunk@28422 -
 2014-08-16 13:03:03 +00:00
sergei
a28d6a84a7 + m68k, a_load_const_reg: use MOV3Q if applicable for data registers as well, since it allows spilling replacement of destination. 
+ a_load_const_ref: use CLR and MOV3Q if possible.
* a_cmp_reg_reg_label: force size to 32 bits for ISA_A and ISA_A+ targets.
+ support for stack frames larger than 32767 bytes.

git-svn-id: trunk@28298 -
 2014-08-02 12:46:34 +00:00
sergei
499ff505c8 * m68k: further improved code generation for comparison nodes, support LOC_REFERENCE for 32-bit compares and omit low dword, when possible, for 64-bit ones. 
git-svn-id: trunk@28297 -
 2014-08-02 12:37:40 +00:00
sergei
b4d9d97a03 * m68k: don't do replace spilling if spilltemp.offset exceeds 16 bits on Coldfire targets. 
git-svn-id: trunk@28296 -
 2014-08-02 12:33:32 +00:00
sergei
3da5de0e5f + m68k, do_spill_replace: support more cases. 
+ support spilling at offsets >32767, tested only to generate assemble-able code, support of large stack frames needs more changes elsewhere.

git-svn-id: trunk@28295 -
 2014-08-01 20:32:48 +00:00
sergei
2c8264c42b * m68k: partially improved code generation for comparisons. 
git-svn-id: trunk@28283 -
 2014-07-31 18:44:07 +00:00
sergei
01c8ee158d - removed unused variables 
git-svn-id: trunk@28282 -
 2014-07-31 18:35:55 +00:00
sergei
a42ecadddf + m68k: implemented overflow checking (does not work for multiplication yet). 
+ support references as source operands for 64-bit AND and OR operations.

git-svn-id: trunk@28275 -
 2014-07-30 01:46:25 +00:00
sergei
9b9ea15d68 + m68k: initial implementation of do_spill_replace (supports only MOVE instructions for now). Tested with qemu for Coldfire target. 
git-svn-id: trunk@28274 -
 2014-07-30 01:20:59 +00:00
sergei
bd5ce35130 * m68k: completely replaced 64-bit comparison code with a clone of i386 implementation. No optimizations yet, but it already makes system unit about 300 instructions shorter due to changing node location to LOC_JUMP. 
* Cleaned up 32-bit comparison code and implemented one of the optimizations (TST instruction for comparison with constant zero which can act directly on references). This makes system unit shorter by about 1000 instructions.

git-svn-id: trunk@28260 -
 2014-07-24 19:44:41 +00:00
sergei
dac52f503c * m68k: fixed extension in a_load_ref_reg. Existing code cleans only bits 16-31 when loading a 8-bit register from 16-bit reference, and leaves garbage in bits 8-15. 
git-svn-id: trunk@28256 -
 2014-07-24 12:17:29 +00:00
sergei
b7da785688 * m68k: support stack cleanup at caller side, fixed calculation of pushed parameters size and offsets and cleaned out another pile of junk. 
* Parameter offsets are now calculated similar to other targets, target_info,first_parm_offset is applied only to callee side, while at caller side offsets start from 0.
* For cdecl procedures, parameters are removed by caller, for the rest it's still done by callee (resembles i386 target, except there is no 'register' calling convention).

git-svn-id: trunk@28185 -
 2014-07-08 19:08:56 +00:00
sergei
cfe13734e0 * m68k: Fixed damage caused by r27573 and r28177: 
* longjmp: restored loading of function result (d0) which got removed in r28177.
  * While at the point, added test for zero, because longjmp must never return zero values.
  * Assembler reader: 'fp' refers to frame pointer, not the stack pointer.

git-svn-id: trunk@28183 -
 2014-07-08 15:04:54 +00:00
sergei
df60309d96 * m68k: fixed the last remaining warning and removed "$WARNINGS OFF" directive. 
git-svn-id: trunk@28176 -
 2014-07-06 11:36:33 +00:00
Károly Balogh
e5656a6f7e m68k assembler reader: fixed parsing of slash-separated movem/fmovem register lists. only the first register was stored. 
git-svn-id: trunk@28174 -
 2014-07-06 11:29:45 +00:00
sergei
1678fcdc2d - m68k assembler reader: removed Oper.InitRef which was causing failure of tbs/tb0142.pp and, in general, making impossible calls/jumps to non-alias procedure names. 
git-svn-id: trunk@28173 -
 2014-07-06 10:35:35 +00:00
sergei
b91d965096 * m68k: initial support for ROL/ROR operations, defining 'cpurox' for CPU target can actually enable them. However it cannot be done outright because these instructions do not exits on Coldfire, and internal processing of RoX,Sar,BsX, etc. can not yet be switched depending on CPU subtype. 
git-svn-id: trunk@28101 -
 2014-06-29 17:49:30 +00:00
sergei
15e374f3c6 * m68k: fixed comparison of small sets, it should not modify sides. tw18013 is now correct when compiled with -O2. 
git-svn-id: trunk@28100 -
 2014-06-29 12:35:03 +00:00
sergei
0262514939 * m68k: Transform 32-bit div/mod nodes into helper calls during pass 1. This is consistent with the way other targets do it, and results in pretty much nicer code. 
git-svn-id: trunk@28098 -
 2014-06-28 13:28:01 +00:00
sergei
535218e837 * m68k: fixed OP_NOT/OP_NEG with two registers, it must never modify the source register. 
git-svn-id: trunk@28097 -
 2014-06-28 05:22:03 +00:00
sergei
85c0ba96e2 * tm68knotnode brought up to speed: 
- removed code for everything but booleans (it is handled perfectly well by generic code)
 + operate directly on references when possible
 + added handling for 64-bit data.

git-svn-id: trunk@28096 -
 2014-06-28 05:14:27 +00:00
sergei
4df49964ca * tcg68k.a_op_reg_reg: renamed parameters 'reg1' and 'reg2' to 'src' and 'dst' to make it clear what's what. 
* tcg68k.fixref method made public.

git-svn-id: trunk@28095 -
 2014-06-28 05:09:34 +00:00
sergei
c2ab16c320 - m68k: dropped t68kaddnode.second_cmpboolean, apparently its presence just breaks tbs/tb0246 without any value added. 
git-svn-id: trunk@28090 -
 2014-06-27 16:34:14 +00:00
sergei
193fa2b95e - m68k: removed some definitely misplaced code, comparison nodes are never handled in second_addfloat. 
git-svn-id: trunk@28087 -
 2014-06-27 13:23:12 +00:00
sergei
3851c1f494 - m68k: removed a_loadmm_* methods, no need to override because they produce internal error already in base class. 
git-svn-id: trunk@28086 -
 2014-06-27 12:15:00 +00:00
sergei
acd3ea8750 * m68k: Fixed parameter passing to conform to ABI: 
* records are passed by value
  * records with size of 1,2 or 4 are returned in registers
  * parameters with size<4 are justified on the stack according to big-endian target

Now everything except floating-point parameters is compatible with C code compiled with "-malign-int -mrtd".
Compatibility with "-mno-align-int" is achievable by changing target_info.maxCrecordalign to 2, but doings so causes a lot more troubles because RTL (incorrectly) assumes that records declared with {$PACKRECORDS C} are aligned to pointer size.

+ Reuse parameter locations. Since everything is passed on stack, it reduces code size quite a bit.
- tm68kparamanager.getintparaloc removed, generic implementation has been tested and works as expected.

git-svn-id: trunk@28083 -
 2014-06-27 06:58:39 +00:00
Károly Balogh
5276de5627 m68k: restored orglen variable to g_concatcopy which was actually used, but still got removed in r28072 
git-svn-id: trunk@28080 -
 2014-06-26 19:46:57 +00:00
Károly Balogh
3028f3ac78 m68k: disabled PEA debug comment accidentally left in 
git-svn-id: trunk@28077 -
 2014-06-26 16:50:42 +00:00
Károly Balogh
d93e7b3367 m68k: cleaned ancient silly debug mess from a_loadaddr_ref_reg. no functional changes. 
git-svn-id: trunk@28076 -
 2014-06-26 16:47:55 +00:00
Károly Balogh
1388cb9bae m68k: implemented a proper a_loadaddr_ref_cgpara instead of the disabled mess in the source, utilizing the PEA instruction 
git-svn-id: trunk@28075 -
 2014-06-26 16:39:17 +00:00
sergei
4c3eb391ef * m68k: cleaned out unused variables in cgcpu.pas 
* Fixed reference strength in a_call_reg.

git-svn-id: trunk@28072 -
 2014-06-26 08:27:38 +00:00
sergei
3ffa32a660 - m68k: removed garbage (tab characters, commented out code, unused variables, debug output and alike). Functionality unchanged. 
git-svn-id: trunk@28070 -
 2014-06-26 06:01:29 +00:00
sergei
ad59098457 + m68k: initial implementation of g_stackpointer_alloc method, it has to exist for targets with non-fixed stack. 
git-svn-id: trunk@28064 -
 2014-06-25 17:43:37 +00:00
Károly Balogh
531ac093ed m68k: implemented a simple a_cmp_const_ref_label. uses TST instruction to test ref contents against zero 
git-svn-id: trunk@28053 -
 2014-06-25 06:56:58 +00:00
sergei
c79cd3beca * m68k: fixed/completed the inverse_cond function. 
git-svn-id: trunk@28052 -
 2014-06-25 05:23:30 +00:00
Károly Balogh
519094055c m68k: cleaned up and fixed cgcpu/fixref for coldfire at least; also enabled n68kmem node, so addressing with scaling is generated now 
git-svn-id: trunk@28025 -
 2014-06-21 21:36:48 +00:00
Károly Balogh
2881bc81b1 m68k: tweaks and fixes in n68kmem. the node is still disabled, needs further fixes in cgcpu/fixref to work properly 
git-svn-id: trunk@28011 -
 2014-06-20 11:49:38 +00:00
Károly Balogh
c6153010d1 m68k: plain 68000 doesn't support index scaling at all (020+ and CF only) 
git-svn-id: trunk@27967 -
 2014-06-15 12:28:51 +00:00
Károly Balogh
0045f34322 tabs to spaces and indentation fix, no functional changes 
git-svn-id: trunk@27950 -
 2014-06-14 09:09:53 +00:00