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65 Commits

Author SHA1 Message Date
Ahmed Charles
b0934ab7d8 Remove dead code. Improve llvm_unreachable text. Simplify some control flow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-19 11:37:01 +00:00
David Blaikie
4d6ccb5f68 More dead code removal (using -Wunreachable-code) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-20 21:51:11 +00:00
Justin Holewinski
4c7ffb6a7e PTX: Continue to fix up the register mess. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145947 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 17:39:48 +00:00
Justin Holewinski
e37a83f66b PTX: Encode registers as unsigned values in the MC asm printer instead of using external symbols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145946 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 17:39:46 +00:00
Dan Bailey
96e6458903 allow non-device function calls in PTX when natively handling device-side printf 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144388 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-11 14:45:12 +00:00
Benjamin Kramer
055a647a9d Simplify code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144012 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-07 21:00:43 +00:00
Dan Bailey
e1f38f2ce1 fixed global array handling for ptx to use the correct bit widths 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143640 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-03 19:24:46 +00:00
Nick Lewycky
44d798d976 Add support for a new extension to the .file directive: 
.file filenumber "directory" "filename"

This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142300 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 23:05:28 +00:00
Justin Holewinski
68226a4d46 PTX: Print .ptr kernel attributes if PTX version >= 2.2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141508 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-09 15:42:02 +00:00
Justin Holewinski
f51b7e5d74 PTX: Various stylistic and code readability changes recommended by Jim Grosbach. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140855 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-30 14:36:36 +00:00
Justin Holewinski
2097d702d4 PTX: Fix broken shared library build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140783 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-29 14:25:48 +00:00
Justin Holewinski
cfab2be391 PTX: Fix alignment logic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-28 18:24:58 +00:00
Justin Holewinski
ed0e4c85c4 PTX: MC-ize the PTX backend (patch 2 of N) 
Get rid of some of the no-longer-needed parts of PTXAsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140698 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-28 14:32:06 +00:00
Justin Holewinski
d8e4ed2686 PTX: MC-ize the PTX back-end (patch 1 of N) 
Lay some groundwork for converting to MC-based asm printer. This is the first
of probably many patches to bring the back-end back up-to-date with all of the
recent MC changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140697 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-28 14:32:04 +00:00
Justin Holewinski
332850d8cc PTX: Fix case where printed alignment could be 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140624 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-27 19:25:49 +00:00
Justin Holewinski
f47dfba023 PTX: Use external symbols to keep track of params and locals. This also fixes 
a couple of outstanding issues with frame objects occuring as instruction
operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140616 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-27 18:12:55 +00:00
Justin Holewinski
63602ed876 PTX: Fix detection of stack load/store vs. global load/store, as well as fix the 
printing of local offsets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140547 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-26 18:57:22 +00:00
Justin Holewinski
58788503b8 PTX: Fix some lingering issues with stack allocation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140535 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-26 16:20:34 +00:00
Justin Holewinski
c1d8fbd41a PTX: Unify handling of loads/stores 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140533 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-26 16:20:28 +00:00
Justin Holewinski
6b8990df42 PTX: Handle FrameIndex nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140532 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-26 16:20:25 +00:00
Justin Holewinski
dc0baf9b40 PTX: Cleanup unused code in PTXMachineFunctionInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140390 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-23 17:15:53 +00:00
Justin Holewinski
75d809599b PTX: Handle function call return values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140386 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-23 16:48:41 +00:00
Justin Holewinski
e953a64cb5 PTX: Start fixing function calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140378 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-23 14:31:12 +00:00
Justin Holewinski
27f08fc619 PTX: Generalize handling of .param types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140375 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-23 14:18:22 +00:00
Justin Holewinski
5422a0f166 PTX: Use .param space for device function return values on SM 2.0+, and attempt 
to fix up parameter passing on SM < 2.0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140309 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-22 16:45:46 +00:00
Justin Holewinski
297984d7c6 PTX: Fixup codegen to handle emission of virtual registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140307 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-22 16:45:40 +00:00
Evan Cheng
3e74d6fdd2 Move TargetRegistry and TargetSelect from Target to Support where they belong. 
These are strictly utilities for registering targets and components.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138450 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:08:43 +00:00
Justin Holewinski
4bdd4ed564 PTX: Add initial support for device function calls 
- Calls are supported on SM 2.0+ for function with no return values

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137125 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-09 17:36:31 +00:00
Chris Lattner
db125cfaf5 land David Blaikie's patch to de-constify Type, with a few tweaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 04:54:35 +00:00
Dan Bailey
84149460d5 PTX: Reverting implementation of i8. 
The .b8 operations in PTX are far more limiting than I first thought. The mov operation isn't even supported, so there's no way of converting a .pred value into a .b8 without going via .b16, which is
not sensible. An improved implementation needs to use the fact that loads and stores automatically extend and truncate to implement support for EXTLOAD and TRUNCSTORE in order to correctly support
boolean values.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-25 18:16:28 +00:00
Dan Bailey
b05a8a8f02 PTX: Add support for i8 type and introduce associated .b8 registers 
The i8 type is required for boolean values, but can only use ld, st and mov instructions. The i1 type continues to be used for predicates.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133814 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-24 19:27:10 +00:00
Justin Holewinski
4799729d67 PTX: Add preliminary support for outputting debug information in the form of 
.file and .loc directives.

Ideally, we would utilize the existing support in AsmPrinter for this, but
I cannot find a way to get .file and .loc directives to print without the
rest of the associated DWARF sections, which ptxas cannot handle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133812 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-24 19:19:18 +00:00
Justin Holewinski
35f4fb34ff PTX: Re-work target sm/compute selection and add some basic GPU 
targets: g80, gt200, gf100(fermi)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133799 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-24 16:27:49 +00:00
Justin Holewinski
d8149c1bef PTX: Always use registers for return values, but use .param space for device 
parameters if SM >= 2.0

- Update test cases to be more robust against register allocation changes
- Bump up the number of registers to 128 per type
- Include Python script to re-generate register file with any number of
  registers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133736 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-23 18:10:13 +00:00
Justin Holewinski
486ca24c08 PTX: Whitespace fixes and remove commented out code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133734 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-23 18:10:07 +00:00
Justin Holewinski
a5ccb4e974 PTX: Prevent DCE from eliminating st.param calls, and unify the handling of 
st.param and ld.param

FIXME: Test cases still need to be updated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133733 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-23 18:10:05 +00:00
Justin Holewinski
67a9184861 PTX: Use .param space for parameters in device functions for SM >= 2.0 
FIXME: DCE is eliminating the final st.param.x calls, figure out why

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133732 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-23 18:10:03 +00:00
Justin Holewinski
08d03168f2 PTX: Fix FrameIndex mapping bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133619 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-22 16:07:03 +00:00
Justin Holewinski
a9c85f9ead PTX: Add .address_size directive if PTX version >= 2.3 
Patch by Wei-Ren Chen

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-22 00:43:56 +00:00
Justin Holewinski
df1c8d837d PTX: Add basic register spilling code 
The current implementation generates stack loads/stores, which are
really just mov instructions from/to "special" registers.  This may
not be the most efficient implementation, compared to an approach where
the stack registers are directly folded into instructions, but this is
easier to implement and I have yet to see a case where ptxas is unable
to see through this kind of register usage and know what is really
going on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133443 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-20 15:56:20 +00:00
Jay Foad
7d715dfe6d Fix a FIXME by making GlobalVariable::getInitializer() return a 
const Constant *.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133400 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-19 18:37:11 +00:00
Justin Holewinski
e0aef2de81 PTX: Finish new calling convention implementation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133172 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-16 17:50:00 +00:00
Justin Holewinski
1b91bcddd5 PTX: Rename register classes for readability and combine int and fp registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133171 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-16 17:49:58 +00:00
Justin Holewinski
ec3141b27f PTX: Fix whitespace errors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133158 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-16 15:17:11 +00:00
Justin Holewinski
9583a86ba8 PTX: patch to AsmPrinter 
- immediate value cast as long not int
- handles initializer for constant array

Patch by Dan Bailey

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130352 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-28 00:19:50 +00:00
Justin Holewinski
e1fee48cd0 PTX: Add intrinsics to list of built-in intrinsics, which allows them to be 
used by Clang.  To help Clang integration, the PTX target has been split
     into two targets: ptx32 and ptx64, depending on the desired pointer size.

- Add GCCBuiltin class to all intrinsics
- Split PTX target into ptx32 and ptx64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129851 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-20 15:37:17 +00:00
Justin Holewinski
8af78c9cf8 PTX: Fix various codegen issues 
- Emit mad instead of mad.rn for shader model 1.0
- Emit explicit mov.u32 instructions for reading global variables
- (most PTX instructions cannot take global variable immediates)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127895 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-18 19:24:28 +00:00
Che-Liang Chiou
8902ecb682 ptx: fix parameter order that is reversed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-18 11:23:56 +00:00
Che-Liang Chiou
88d3367baa ptx: add unconditional and conditional branch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-18 11:08:52 +00:00
Justin Holewinski
ae3ce17bac PTX: Emit global arrays with proper sizes 
- Emit all arrays as type .b8 and proper sizes in bytes to conform
  to the output of nvcc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127584 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 15:40:11 +00:00