* Adjust rip-relative offsets using values known from calcsize, instead of reinterpreting the tail of instruction. This is simpler and remains the same regardless of particular codes used in opcode table.
* Reduced maxinfolen to 8.
- 'jmp imm64' and 64-bit versions of 'in' do not exist, removed.
git-svn-id: trunk@17546 -
* Optimized the opcode representation of movq and remaining 3DNow instructions
* Disallow immediates not fitting in 32 bits (Mantis #14685) + test
* Disallow push/pop with 32-bit operands in x86_64 + test
git-svn-id: trunk@17490 -
* Factored repeating REX operations into a separate function.
* Fixed instruction matching bug which was preventing compilation of 3-operand SIMD instructions with RIP-relative operand + test.
* Do not adjust offset of RIP-relative reference if it is a literal number, this was causing 0x123(%rip) to assemble as 0x122(%rip) in 3-operand instructions. Now tasm2.pp is the same with and without -Aas. Also fixed the expected result, improved verbosity of diagnostic and removed %norun, so it is actually executed.
+ Disallow high-byte registers in instructions requiring REX + test.
git-svn-id: trunk@17478 -
* Simplified REX handling: instead of useless adjusting instruction length on every REX change, adjust it just once, based on the final REX value.
* Similar for omitting REX.W in certain instructions: set a flag and consider it once the entire instruction has been processed. This removes the requirement for \335 to be the last opcode.
* maybewriterex also after $F2 prefix
* Fixed behavior of codes \310 and \311 (16- and 32-bit address respectively), this is needed for a few fancy instructions like LOOP and JCXZ, which honor address-size prefix instead of REX.
+ control code \361 for $66 prefix
+ IF_SSSE3, IF_SSE41, IF_SSE42 instruction flags (with dummy values)
x86/x86ins.dat:
* replaced literal $67 prefixes with \310 or \311
* marked encodings containing code \310 as NOX86_64
* replaced literal $48 prefixes with \326
git-svn-id: trunk@17433 -
* Modified taicpu.Pass2 to exclude non-definitely assigned variable and issue InternalError if impossible segment prefix is used.
git-svn-id: trunk@17374 -
relocations for addr_pic_no_got references (do not go via the GOT)
* fixed code generator so that it generates addr_pic_no_got references
also for platforms that use the internal assembler (this will break linking
of some tests that check static data > 2GB on Linux/x86-64, but they were
already broken before as well because we don't use the "huge" x86-64
execution model)
* fixed x86-64 Linux syscall code to not expect GOT-based relocations for
the system unit's errno variable (it's an implementation-only variable)
git-svn-id: trunk@16717 -
a) it's unnecessary
b) it's slower than "direct" RIP-relative accessing
c) it's not supported on darwin/x86_64 in certain cases
* never use absolute addressing on darwin/x86_64 (like on win64)
* when not generating PIC, make sure that a_loadaddr_ref_reg on x86_64
also uses RIP-relative addressing for darwin/x86_64 and win64
git-svn-id: trunk@13760 -
* Suppressed 2 unreachable code warnings.
* Now x86 compiler compiles without warnings and notes! It will be great to keep such state in future...
git-svn-id: trunk@11455 -
- {$intpromotion common_type} or -CIcommon_type switches to common type promotion.
- {$intpromotion native_integer} or -CIcommon_type switches to current behaviour.
- Default in tp mode is common_type, native_integer in other modes
- Compiler can cycle with -CIcommon_type
- Still needs checking on other architectures than i386
git-svn-id: trunk@8118 -
from x86/aasmcpu to aasmtai and (new) aasmsym, so that when they're
finished they're available for all targets
* added dummy implementation of tai_cpu_abstract.pass1 and pass2 so there
are no more hundreds of warnings on non-x86 about constructing taicpu
instances with abstract methods
git-svn-id: trunk@5787 -
* operand read/write info for movaps and movapd
* use "movapd reg,reg" instead of "movaps reg,reg" if appropriate
so the spilling code can spill the correct size to memory
* replace movaps/movapd with movss/movsd when spilling to memory
instead of movq
git-svn-id: trunk@4612 -
