 sergei
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06ee500352
* MIPS: improved code generation in make_simple_ref
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10 年之前 |
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sergei
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ac64c4600f
+ MIPS: make use of instructions MUL,SEB and SEH that are available in modern cores.
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11 年之前 |
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sergei
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768e090006
- MIPS: don't create reg.allocator for MM registers.
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11 年之前 |
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sergei
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d9a7d28838
+ MIPS: support floating point conditions in its emulated flags, on MIPS4+ convert such flags to registers using conditional move instructions (i.e. without branching). For older cores generated code remains the same.
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11 年之前 |
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sergei
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f0496001fb
- MIPS: removed allocation of stack/frame pointer registers in prologue, hacks like this are no longer needed since r27104.
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11 年之前 |
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sergei
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f1d1fd4f24
* Inserted explicit typecasts in order to prevent range check errors at some places where signed and unsigned types are assigned to each other (mostly MIPS-specific, but one was necessary in generic code).
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11 年之前 |
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sergei
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e4fea2ebc8
* Dummy implementations of a_bit_scan_reg_reg and g_stackpointer_alloc in tcg, removes the need to override these methods in every descendant code generator solely to avoid "constructing a class with abstract method" warning.
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11 年之前 |
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sergei
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cd27d64cd5
+ Support (as target-independent as possible) optimization of division by constants:
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11 年之前 |
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sergei
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4202343033
* MIPS: emit ".set nomips16" and ".set noreorder" directives for procedures declared as "assembler nostackframe", as it is done for regular procedures. Handwritten assembler routines typically utilize delay slots, and it is desirable that assembler does not mess it up.
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11 年之前 |
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sergei
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ed1555b918
* Moved generation of .ent/.end directives out of generic code generator.
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11 年之前 |
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sergei
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d7c7ee2c2a
* MIPS: fixed 8/16 bit arithmetic shifting to be done without using an additional register.
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11 年之前 |
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sergei
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0d3f36eebf
- Remove references to global variable 'cg' from methods of tcg and some of its descendants.
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11 年之前 |
 nickysn
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85dd9e5789
+ added a size parameter to optimize_op_const and do a sign extension of the 'a' parameter up from the specified size, so that things like (i and $ffffffff) get optimized away the same way as (i and -1)
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11 年之前 |
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sergei
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2a112ad01b
* MIPS: don't optimize reference twice for 64-bit loads and stores. Now loading/storing 64-bit value to global variable takes typically 3 instructions.
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11 年之前 |
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sergei
|
e10e383b8e
* MIPS: ".set macro"/".set nomacro" directives around ".cprestore" are necessary only when offset is outside smallint range. Otherwise they just clutter the assembler file.
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11 年之前 |
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sergei
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9494fadf08
* MIPS: set pi_do_call flag for assembler procedures with stackframes, so in PIC mode it further receives pi_needs_got in PIC mode and allocates the GP save temp.
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12 年之前 |
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sergei
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f80ce76a69
+ MIPS: emulate "flags", i.e. support LOC_FLAGS location. This allows to generate differently optimized code for branching and for conversion to register, typically saving a register and instruction per compare.
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12 年之前 |
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sergei
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9a6edd0fb8
* MIPS: handle restoring GP after calls without GAS macro processing, removes ugly workaround for GAS bug.
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12 年之前 |
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sergei
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9e4cc57768
* MIPS: handle 8 and 16-bit arithmetic shifts internally, by shifting argument left by 24/16 bits, followed with 32-bit arithmetic shift right by appropriately adjusted amount.
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12 年之前 |
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sergei
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59d6df4fca
* MIPS: replaced opcode mapping functions with array, much shorter that way. Separate "overflow" mapping is also no longer needed.
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12 年之前 |
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sergei
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7a28815182
* r24895 used wrong expression for swapping sides of comparison, and it went undetected by tests. Fixed.
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12 年之前 |
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sergei
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c855868a3d
* MIPS: get rid of macros in comparison operations, use immediate operands for comparison with constants when possible.
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12 年之前 |
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sergei
|
89c9cdf6c4
+ MIPS: implemented parameter location reusing, eliminating second copy of (potentially large) records passed by value. When parameter is passed both in registers and stack, let it have a single LOC_REFERENCE location on callee side, and store relevant registers on stack (into 16-byte area reserved by ABI) early in prologue.
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12 年之前 |
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sergei
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8b8553991a
+ MIPS: prevent coalescing written-to registers with $sp,$fp,$zero and $at.
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12 年之前 |
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sergei
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6a8e4f0381
* MIPS: generate real instructions, not macros, for comparisons with $zero.
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12 年之前 |
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sergei
|
fb88cc4257
* TCGMIPS.a_load_reg_reg: reduce code duplication, and don't generate same register move for OS_32->OS_S32 and vice versa. Such moves explode into at least 4 instructions if register needs spilling, after which they are no longer recognized and cannot be removed by reg.allocator. So it's much better not to generate them in first place.
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12 年之前 |
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sergei
|
7e0ae2e984
* MIPS: fixed cgsize2subreg to return correct result for float registers.
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12 年之前 |
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sergei
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562714129f
* MIPS: get completely rid of LI macro, generate equivalent CPU instructions instead.
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12 年之前 |
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sergei
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c31321c2fe
* TCGMIPS.handle_reg_const_reg(): fixed to generate 'real' CPU instructions, so macro processing by assembler is no longer needed.
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12 年之前 |
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sergei
|
d367148f75
- Removed obsolete comments (copypasted from other CPU code, most likely).
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12 年之前 |
