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18 Commits

Author SHA1 Message Date
Marek Olsak a93603d508 R600/SI: Don't shrink instructions whose e32 encoding doesn't exist 
v2: modify hasVALU32BitEncoding instead
v3: - add pseudoToMCOpcode helper to AMDGPUInstInfo, which is used by both
      hasVALU32BitEncoding and AMDGPUMCInstLower::lower
    - report an error if a pseudo can't be lowered
llvm-svn: 226188
 2015-01-15 18:42:51 +00:00
Tom Stellard fb77f00be8 R600/SI: Add pattern for bitcasting fp immediates to integers 
The backend now assumes that all immediates are integers.  This allows
us to simplify immediate handling code, becasue we no longer need to
handle fp and integer immediates differently.

llvm-svn: 225844
 2015-01-13 22:59:41 +00:00
Matt Arsenault 13bd95bbc7 R600/SI: Move continue after checking s_mov_b32. 
There's nothing else to bother trying to shrink these.

llvm-svn: 223686
 2014-12-08 19:55:43 +00:00
Matt Arsenault 7784992999 R600/SI: Use s_movk_i32 
llvm-svn: 221922
 2014-11-13 20:44:23 +00:00
Matt Arsenault e184482bf8 R600/SI: Also check for FPImm literal constants 
llvm-svn: 220067
 2014-10-17 18:00:50 +00:00
Matt Arsenault 8943d24949 R600/SI: Simplify code with hasModifiersSet 
llvm-svn: 220065
 2014-10-17 18:00:45 +00:00
Matt Arsenault ffc5d5bbf0 R600/SI: Cleanup code with ChangeToFPImmediate 
llvm-svn: 220063
 2014-10-17 18:00:41 +00:00
Matt Arsenault a9627ae97a Fix typo 
llvm-svn: 218223
 2014-09-21 17:27:32 +00:00
Matt Arsenault 6652403c2d Fix typo 
llvm-svn: 217892
 2014-09-16 18:00:23 +00:00
Matt Arsenault 5d26d04357 Fix typo 
llvm-svn: 217730
 2014-09-13 19:58:27 +00:00
Craig Topper fd38cbebda Remove 'virtual' keyword from methods markedwith 'override' keyword. 
llvm-svn: 216823
 2014-08-30 16:48:34 +00:00
Eric Christopher fc6de428c8 Have MachineFunction cache a pointer to the subtarget to make lookups 
shorter/easier and have the DAG use that to do the same lookup. This
can be used in the future for TargetMachine based caching lookups from
the MachineFunction easily.

Update the MIPS subtarget switching machinery to update this pointer
at the same time it runs.

llvm-svn: 214838
 2014-08-05 02:39:49 +00:00
Eric Christopher d913448b38 Remove the TargetMachine forwards for TargetSubtargetInfo based 
information and update all callers. No functional change.

llvm-svn: 214781
 2014-08-04 21:25:23 +00:00
Tom Stellard d44c023b21 R600/SI: Remove leftover debugging code 
llvm-svn: 214569
 2014-08-01 21:51:05 +00:00
Tom Stellard b4a313a76f R600/SI: Do abs/neg folding with ComplexPatterns 
Abs/neg folding has moved out of foldOperands and into the instruction
selection phase using complex patterns.  As a consequence of this
change, we now prefer to select the 64-bit encoding for most
instructions and the modifier operands have been dropped from
integer VOP3 instructions.

llvm-svn: 214467
 2014-08-01 00:32:39 +00:00
Tom Stellard 6407e1e632 R600/SI: Fold immediates when shrinking instructions 
This will prevent us from using extra MOV instructions once we prefer
selecting 64-bit instructions.

llvm-svn: 214464
 2014-08-01 00:32:33 +00:00
Tom Stellard 86d12ebdbd R600/SI: Fix incorrect commute operation in shrink instructions pass 
We were commuting the instruction by still shrinking it using the
original opcode.

NOTE: This is a candidate for the 3.5 branch.
llvm-svn: 214463
 2014-08-01 00:32:28 +00:00
Tom Stellard 1aaad6970c R600/SI: Add instruction shrinking pass 
This pass converts 64-bit instructions to 32-bit when possible.

llvm-svn: 213561
 2014-07-21 16:55:33 +00:00