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path: root/llvm/lib/Target/R600/AMDGPUTargetMachine.cpp
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* R600: Add support for native control flowVincent Lejeune2013-04-011-0/+1
| | | | llvm-svn: 178505
* R600: Emit CF_ALU and use true kcache register.Vincent Lejeune2013-04-011-0/+1
| | | | llvm-svn: 178503
* R600/SI: rework input interpolation v2Christian Konig2013-03-071-5/+0
| | | | | | | | v2: update CMakeLists.txt as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 176626
* R600: initial scheduler codeVincent Lejeune2013-03-051-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a skeleton for a pre-RA MachineInstr scheduler strategy. Currently it only tries to expose more parallelism for ALU instructions (this also makes the distribution of GPR channels more uniform and increases the chances of ALU instructions to be packed together in a single VLIW group). Also it tries to reduce clause switching by grouping instruction of the same kind (ALU/FETCH/CF) together. Vincent Lejeune: - Support for VLIW4 Slot assignement - Recomputation of ScheduleDAG to get more parallelism opportunities Tom Stellard: - Fix assertion failure when trying to determine an instruction's slot based on its destination register's class - Fix some compiler warnings Vincent Lejeune: [v2] - Remove recomputation of ScheduleDAG (will be provided in a later patch) - Improve estimation of an ALU clause size so that heuristic does not emit cf instructions at the wrong position. - Make schedule heuristic smarter using SUnit Depth - Take constant read limitations into account Vincent Lejeune: [v3] - Fix some uninitialized values in ConstPair - Add asserts to ensure an ALU slot is always populated llvm-svn: 176498
* R600: Remove LowerConstCopyPass and lower CONST_COPY right after ISel.Vincent Lejeune2013-03-051-1/+0
| | | | | | | Maintaining CONST_COPY Instructions until Pre Emit may prevent some ifcvt case and taking them in account for scheduling is difficult for no real benefit. llvm-svn: 176488
* R600/SI: cleanup literal handling v3Christian Konig2013-02-161-1/+0
| | | | | | | | | | | | | | | | Seems to be allot simpler, and also paves the way for further improvements. v2: rebased on master, use 0 in BUFFER_LOAD_FORMAT_XYZW, use VGPR0 in dummy EXP, avoid compiler warning, break after encoding the first literal. v3: correctly use V_ADD_F32_e64 This is a candidate for the stable branch. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 175354
* R600: Support for indirect addressing v4Tom Stellard2013-02-061-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Only implemented for R600 so far. SI is missing implementations of a few callbacks used by the Indirect Addressing pass and needs code to handle frame indices. At the moment R600 only supports array sizes of 16 dwords or less. Register packing of vector types is currently disabled, which means that a vec4 is stored in T0_X, T1_X, T2_X, T3_X, rather than T0_XYZW. In order to correctly pack registers in all cases, we will need to implement an analysis pass for R600 that determines the correct vector width for each array. v2: - Add support for i8 zext load from stack. - Coding style fixes v3: - Don't reserve registers for indirect addressing when it isn't being used. - Fix bug caused by LLVM limiting the number of SubRegIndex declarations. v4: - Fix 64-bit defines llvm-svn: 174525
* R600: Fold remaining CONST_COPY after expand pseudo instTom Stellard2013-02-051-1/+1
| | | | | | | Patch by: Vincent Lejeune Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 174395
* R600: rework handling of the constantsTom Stellard2013-01-231-0/+1
| | | | | | | | | | | | | | | | | | | | Remove Cxxx registers, add new special register - "ALU_CONST" and new operand for each alu src - "sel". ALU_CONST is used to designate that the new operand contains the value to override src.sel, src.kc_bank, src.chan for constants in the driver. Patch by: Vadim Girlin Vincent Lejeune: - Use pointers for constants - Fold CONST_ADDRESS when possible Tom Stellard: - Give CONSTANT_BUFFER_0 its own address space - Use integer types for constant loads Reviewed-by: Tom Stellard <thomas.stellard@amd.com> llvm-svn: 173222
* R600: Proper insert S_WAITCNT instructionsTom Stellard2013-01-181-0/+5
| | | | | | | | | | | | | | | | Some instructions like memory reads/writes are executed asynchronously, so we need to insert S_WAITCNT instructions to block before accessing their results. Previously we have just inserted S_WAITCNT instructions after each async instruction, this patch fixes this and adds a prober insertion pass. Patch by: Christian König Tested-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Signed-off-by: Christian König <deathsimple@vodafone.de> llvm-svn: 172846
* R600: New control flow for SI v2Tom Stellard2012-12-191-6/+7
| | | | | | | | | | | | | | | | | | | | This patch replaces the control flow handling with a new pass which structurize the graph before transforming it to machine instruction. This has a couple of different advantages and currently fixes 20 piglit tests without a single regression. It is now a general purpose transformation that could be not only be used for SI/R6xx, but also for other hardware implementations that use a form of structurized control flow. v2: further cleanup, fixes and documentation Patch by: Christian König Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> Tested-by: Michel Dänzer <michel.daenzer@amd.com> llvm-svn: 170591
* Add R600 backendTom Stellard2012-12-111-0/+141
A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX llvm-svn: 169915
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