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59 commits

Author SHA1 Message Date
MerryMage
9ac890c62d reg_alloc: Fix for LLVM's interpretation of the System V ABI 
This aspect of the System V ABI is under-defined. LLVM choses a
different interpretation from GCC and ICC.

Most other compilers assume the callee is responsible zero-ing the
upper bits of the register if necessary. LLVM assumes the caller
has zero-extended the register.

This is a quick fix for this problem until zext-tracking is
implemented.
 2017-04-08 22:12:37 +01:00
MerryMage
92a01b0cd8 Prefer ASSERT to DEBUG_ASSERT 2017-02-26 23:30:40 +00:00
MerryMage
135346eb2e reg_alloc: Move implementations out of header 2017-02-26 23:30:39 +00:00
MerryMage
184db36caf reg_alloc: Call DecrementRemainingUses in only one place 2017-02-26 23:30:38 +00:00
MerryMage
51fc9fec05 reg_alloc: Reorganize 2017-02-26 23:30:37 +00:00
MerryMage
cf93ab3d31 reg_alloc: Remove old register allocator interface 2017-02-26 23:12:26 +00:00
MerryMage
08a467bf9a emit_x64: Port to new register allocator interface 2017-02-26 23:12:25 +00:00
MerryMage
f883bad2cc reg_alloc: New register allocation interface 2017-02-26 21:37:35 +00:00
MerryMage
13ac0c234e reg_alloc: Differentiate between ReadLock and WriteLock 2017-02-26 21:37:34 +00:00
MerryMage
6c3df057fa reg_alloc: Remove unused functions 2017-02-26 21:37:33 +00:00
MerryMage
1ee4c07f14 reg_alloc: Reimplement ScratchHostLocReg 2017-02-26 21:37:32 +00:00
MerryMage
640faab8a7 reg_alloc: UseHostLoc is no longer necessary 2017-02-26 21:37:30 +00:00
MerryMage
9518bbe06e reg_alloc: Reimplement UseScratchHostLocReg 2017-02-26 21:37:29 +00:00
MerryMage
e1d8238c50 reg_alloc: Stub UseOpArg 2017-02-26 21:37:27 +00:00
MerryMage
2b078152e7 reg_alloc: Reimplement UseHostLocReg 2017-02-26 21:37:26 +00:00
MerryMage
aefe550428 reg_alloc: Remove the Def concept from register allocator internals 2017-02-26 21:37:25 +00:00
MerryMage
65cccf070e reg_alloc: Properly encapsulate HostLocInfo 2017-02-26 21:37:24 +00:00
MerryMage
f2fe376fc6 Support 64-bit immediates 2016-12-03 11:29:50 +00:00
Mat M
95f34c683c reg_alloc: Remove unnecessary breaks after returns (#54) 2016-12-02 19:14:44 +00:00
Mat M
de1f831d79 microinstruction: Make use_count private (#53) 
Makes the operation a part of the direct interface.
 2016-11-30 21:51:06 +00:00
MerryMage
3621a925b2 reg_alloc: Register allocator related constraints belong with the rest of the register allocator 
HostLocToReg64 contained two DEBUG_ASSERTs invloving constraints that
really belonged to the register allocator.

The register allocator prevents allocation of RSP and R15 because those
are reserved for the stack pointer and the state pointer respectively.
 2016-11-30 19:42:41 +00:00
Mat M
7f9a0c3c38 Remove unnecessary explicit includes (#16) 2016-09-03 21:48:03 +01:00
Mat M
1e781d911a reg_alloc: const correctness (#8) 2016-09-02 17:30:01 +01:00
MerryMage
57169ec093 abi: Implement ABI_PushCallerSaveRegistersAndAdjustStack and ABI_PopCallerSaveRegistersAndAdjustStack 2016-09-01 00:57:22 +01:00
Lioncash
32c24d2cb3 Use 'false' instead of '0' in asserts 2016-08-26 18:52:08 +01:00
MerryMage
7fedf04e79 reg_alloc: Deduplicate constants in RegAlloc::HostCall that were already defined by abi.h 2016-08-26 18:43:50 +01:00
MerryMage
59a8e14d1c reg_alloc: Correct OpArg::setBit for Reg 2016-08-26 15:23:38 +01:00
MerryMage
922d1fd198 Merge branch 'xbyak' 2016-08-25 16:54:48 +01:00
MerryMage
e32812cd00 Port x64 backend to xbyak 2016-08-25 16:18:17 +01:00
MerryMage
13908c5a58 reg_alloc: Insert braces around DEBUG_ASSERT 
DEBUG_ASSERT becomes an empty statement in release-mode; an if statement
with an empty statement produces a compiler warning.
 2016-08-25 13:09:18 +01:00
MerryMage
c8b2f63c93 get_set_elimination_pass: Eliminate unnecessary gets/sets of extended registers 2016-08-23 15:57:20 +01:00
MerryMage
8d1b9f32ca Standardize indentation of switch statments 2016-08-23 12:19:27 +01:00
Lioncash
86f803da04 reg_alloc: Use Inst's HasUses() function where applicable 2016-08-20 21:26:09 +01:00
Lioncash
36a0ad5bc2 reg_alloc: const correctness for ValueLocation() 2016-08-19 19:33:57 +01:00
Lioncash
439619c827 reg_alloc: Make GetRegLoc return by const reference 
Considering a HostLocInfo instance houses a std::vector, every time this
function is called can cause a potential heap allocation.

This can be somewhat unnecessary because this function is only used to query
for information we already have.

Considering this is used by several other internal query functions such as
IsRegisterOccupied, IsRegisterAllocated, and IsLastUse, this will result
in better codegen (returning an address is just 3 instructions excluding
the ret instruction for returning, meanwhile heap alloc can be 60+).

This also renames the function to have the same name as its non-const
counterpart, since overloading will just select the correct function
instead of putting that onus on the developer.
 2016-08-17 10:08:08 +01:00
MerryMage
8fc21f481a RegAlloc: Handle case when def is unused 2016-08-13 01:55:03 +01:00
MerryMage
960d14d18e Optimization: Implement Return Stack Buffer 2016-08-13 00:10:23 +01:00
MerryMage
975f011fc0 BackendX64/RegAlloc: Do not allocate RSP for guest use 2016-08-08 16:01:07 +01:00
MerryMage
328422b740 RegAlloc: HostCall flushes all XMM regsiters 2016-08-07 21:02:16 +01:00
MerryMage
a2c2db277b VFP: Implement VMOV (all variants) 2016-08-07 19:25:12 +01:00
Tillmann Karras
9264e2e04c Use XOR when loading a zero immediate 2016-08-06 21:17:11 +01:00
MerryMage
8754728a82 BackendX64/RegAlloc: Corrected code emitted by EmitMove for XMM->Spill case 2016-08-06 20:01:47 +01:00
MerryMage
8cc4fe8a10 BackendX64/RegAlloc: HostLocToX64 now handles XMM registers properly 2016-08-06 20:01:47 +01:00
MerryMage
640ce48baa VFP: Implement {Get,Set}ExtendedRegister{32,64} 2016-08-05 19:06:10 +01:00
MerryMage
742eeb8913 BackendX64/RegAlloc: Correct debugging asserts and correct UseDef behaviour for spill locations 2016-08-05 18:43:22 +01:00
MerryMage
2b025183a2 BackendX64/RegAlloc: Correct UseDefRegsiter behaviour for last use 2016-08-05 15:24:25 +01:00
MerryMage
92bd5f214b BackendX64/RegAlloc: Add RegisterAddDef, UseDefOpArg, UseOpArg 2016-08-05 14:10:39 +01:00
MerryMage
1252bd653d RegAlloc: Define constructors for HostLocInfo to make MSVC happy 2016-08-03 00:25:42 +01:00
MerryMage
4414ec5bc8 RegAlloc: Allow allocation of XMM registers 2016-08-02 13:46:12 +01:00
MerryMage
51448aa06d More Speed 2016-07-22 23:55:00 +01:00