Commit Graph

8 Commits

Author SHA1 Message Date
Tom Stellard 0351ea2010 R600: Fix handling of NAN in comparison instructions
We were completely ignoring the unorder/ordered attributes of condition
codes and also incorrectly lowering seto and setuo.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 191603
2013-09-28 02:50:50 +00:00
Tom Stellard fc455471c3 R600: Set scheduling preference to Sched::Source
R600 doesn't need to do any scheduling on the SelectionDAG now that it
has a very good MachineScheduler.  Also, using the VLIW SelectionDAG
scheduler was having a major impact on compile times. For example with
the phatk kernel here are the LLVM IR to machine code compile times:

With Sched::VLIW

Total Compile Time:                  1.4890 Seconds (User + System)
SelectionDAG Instruction Scheduling: 1.1670 Seconds (User + System)

With Sched::Source

Total Compile Time:                  0.3330 Seconds (User + System)
SelectionDAG Instruction Scheduling: 0.0070 Seconds (User + System)

The code ouput was identical with both schedulers.  This may not be true
for all programs, but it gives me confidence that there won't be much
reduction, if any, in code quality by using Sched::Source.

llvm-svn: 188215
2013-08-12 22:33:21 +00:00
Tom Stellard ca69a53bae Revert "R600: Non vector only instruction can be scheduled on trans unit"
This reverts commit 98ce62780ea7185ba710868bf83c8077e8d7f6d6.

llvm-svn: 187526
2013-07-31 20:43:27 +00:00
Vincent Lejeune df18804e26 R600: Non vector only instruction can be scheduled on trans unit
llvm-svn: 187514
2013-07-31 19:31:56 +00:00
Vincent Lejeune f43bc57b66 R600: Emit CF_ALU and use true kcache register.
llvm-svn: 178503
2013-04-01 21:47:42 +00:00
Vincent Lejeune 0a22bc4156 R600: Factorize code handling Const Read Port limitation
llvm-svn: 177078
2013-03-14 15:50:45 +00:00
Vincent Lejeune 2bc2730765 R600: Change addresspace in fold-kcache.ll
AddressSpace definition has changed in a previous commit, reflect it
to avoid false failure.

llvm-svn: 176693
2013-03-08 15:34:07 +00:00
Vincent Lejeune f940fd05bd R600: Do not fold single instruction with more that 3 kcache read
It fixes around 100 tfb piglit tests and 16 glean tests.

NOTE: This is a candidate for the Mesa stable branch.

Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
llvm-svn: 175183
2013-02-14 16:57:19 +00:00