Commit Graph

45 Commits

Author SHA1 Message Date
Justin Holewinski db05c2b963 PTX: Add initial support for device function calls
- Calls are supported on SM 2.0+ for function with no return values

llvm-svn: 137125
2011-08-09 17:36:31 +00:00
Dan Bailey b49b736519 PTX: corrected tests that were failing
llvm-svn: 133875
2011-06-25 19:41:17 +00:00
Dan Bailey b7ee561399 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.

llvm-svn: 133873
2011-06-25 18:16:28 +00:00
Dan Bailey dd01c4ac7a 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.

llvm-svn: 133814
2011-06-24 19:27:10 +00:00
Justin Holewinski 6cdd72a9ca 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

llvm-svn: 133736
2011-06-23 18:10:13 +00:00
Justin Holewinski a4aecf3dc4 PTX: Fixup test cases for device param changes
llvm-svn: 133735
2011-06-23 18:10:08 +00:00
Justin Holewinski 6fafebfb6a PTX: Add signed integer comparisons
llvm-svn: 133599
2011-06-22 02:09:50 +00:00
Justin Holewinski 54e3c0f5d9 PTX: Add .address_size directive if PTX version >= 2.3
Patch by Wei-Ren Chen

llvm-svn: 133589
2011-06-22 00:43:56 +00:00
Justin Holewinski cd4484d25d PTX: Fix conversion between predicates and value types
llvm-svn: 133454
2011-06-20 18:42:48 +00:00
Justin Holewinski 3604d9a421 PTX: Adjust rounding modes
* rounding modes for fp add, mul, sub now use .rn
* float -> int rounding correctly uses .rzi not .rni
* 32bit fdiv for sm13 uses div.rn (instead of div.approx)
* 32bit fdiv for sm10 now uses div (instead of div.approx)

Approx is not IEEE 754 compatible (and should be optionally set by a flag to the backend instead). The .rn rounding modifier is the PTX default anyway, but it's better to be explicit.

All these modifiers should be available by using __fmul_rz functions for example, but support will need to be added for this in the backend.

Patch by Dan Bailey

llvm-svn: 133253
2011-06-17 12:12:42 +00:00
Justin Holewinski 7f191b2a3b PTX: Finish new calling convention implementation
llvm-svn: 133172
2011-06-16 17:50:00 +00:00
Justin Holewinski bbdcd17d44 PTX: add flag to disable mad/fma selection
Patch by Dan Bailey

llvm-svn: 131537
2011-05-18 15:42:23 +00:00
Justin Holewinski 3c0447259c PTX: add test cases for cvt, fneg, and selp
Patch by Dan Bailey

llvm-svn: 131128
2011-05-10 14:53:13 +00:00
Justin Holewinski 11d70b6b32 PTX: add PTX 2.3 language target
Patch by Wei-Ren Chen

llvm-svn: 130980
2011-05-06 11:40:36 +00:00
Justin Holewinski 18e6ac83ea PTX: support for bitwise operations on predicates
- selection of bitwise preds (AND, OR, XOR)
- new bitwise.ll test

Patch by Dan Bailey

llvm-svn: 130353
2011-04-28 00:19:51 +00:00
Benjamin Kramer ba446cc12a Make tests more useful.
lit needs a linter ...

llvm-svn: 130126
2011-04-25 10:12:01 +00:00
Che-Liang Chiou 14c48e5d66 ptx: fix parameter ordering
This patch depends on the prior fix r129908 that changes to use std::find,
rather than std::binary_search, on unordered array.

Patch by Dan Bailey

llvm-svn: 129909
2011-04-21 10:56:58 +00:00
Justin Holewinski 7d8895e767 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

llvm-svn: 129851
2011-04-20 15:37:17 +00:00
Che-Liang Chiou e34b271718 ptx: support setp's 4-operand format
llvm-svn: 128767
2011-04-02 08:51:39 +00:00
Che-Liang Chiou 7413080cea ptx: add analyze/insert/remove branch
llvm-svn: 128084
2011-03-22 14:12:00 +00:00
Justin Holewinski 0984dcc077 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)

llvm-svn: 127895
2011-03-18 19:24:28 +00:00
Che-Liang Chiou b1df0fe1cc ptx: fix parameter order that is reversed
llvm-svn: 127874
2011-03-18 11:23:56 +00:00
Che-Liang Chiou ff9d938e33 ptx: add unconditional and conditional branch
llvm-svn: 127873
2011-03-18 11:08:52 +00:00
Justin Holewinski 94751fbf32 PTX: Set PTX 2.0 as the minimum supported version
- Remove PTX 1.4 code generation
- Change type of intrinsics to .v4.i32 instead of .v4.i16
- Add and/or/xor integer instructions

llvm-svn: 127677
2011-03-15 13:24:15 +00:00
Justin Holewinski fbc8d301bf 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

llvm-svn: 127584
2011-03-14 15:40:11 +00:00
Justin Holewinski 8509380f83 PTX: Add support for sqrt/sin/cos intrinsics
llvm-svn: 127578
2011-03-14 14:09:33 +00:00
Che-Liang Chiou a19f075974 ptx: add set.p instruction and related changes to predicate execution
llvm-svn: 127577
2011-03-14 11:26:01 +00:00
Justin Holewinski 72ff7e4fa9 PTX: Add preliminary support for floating-point divide and multiply-and-add
llvm-svn: 127410
2011-03-10 16:57:18 +00:00
Che-Liang Chiou 6e9fb0d056 ptx: add the rest of special registers of ISA version 2.0
llvm-svn: 127397
2011-03-10 04:05:57 +00:00
Justin Holewinski 42e9aaa4b1 PTX: Add intrinsic support for ntid, ctaid, and nctaid registers
llvm-svn: 127246
2011-03-08 14:10:18 +00:00
Che-Liang Chiou 369ea3fdb4 ptx: add basic intrinsic support
llvm-svn: 127084
2011-03-05 14:17:37 +00:00
Che-Liang Chiou 65b1476031 Extend initial support for primitive types in PTX backend
- Allow i16, i32, i64, float, and double types, using the native .u16,
  .u32, .u64, .f32, and .f64 PTX types.
- Allow loading/storing of all primitive types.
- Allow primitive types to be passed as parameters.
- Allow selection of PTX Version and Shader Model as sub-target attributes.
- Merge integer/floating-point test cases for load/store.
- Use .u32 instead of .s32 to conform to output from NVidia nvcc compiler.

Patch by Justin Holewinski

llvm-svn: 126824
2011-03-02 03:20:28 +00:00
Che-Liang Chiou 75a800d3bf Add preliminary support for .f32 in the PTX backend.
- Add appropriate TableGen patterns for fadd, fsub, fmul.
- Add .f32 as the PTX type for the LLVM float type.
- Allow parameters, return values, and global variable declarations
  to accept the float type.
- Add appropriate test cases.

Patch by Justin Holewinski

llvm-svn: 126636
2011-02-28 06:34:09 +00:00
Che-Liang Chiou 84fde9ef2b ptx: add passing parameter to kernel functions
llvm-svn: 125279
2011-02-10 12:01:24 +00:00
Che-Liang Chiou 5451fc9195 ptx: remove reg-reg addressing mode and st.const
llvm-svn: 122653
2011-01-01 11:58:58 +00:00
Che-Liang Chiou 15e8d2c5e7 ptx: add store instruction
llvm-svn: 122652
2011-01-01 10:50:37 +00:00
Che-Liang Chiou 3ee0501338 ptx: add state spaces
llvm-svn: 122638
2010-12-30 10:41:27 +00:00
Che-Liang Chiou aaedf8be1c ptx: add ld instruction and test
llvm-svn: 122398
2010-12-22 10:38:51 +00:00
Che-Liang Chiou 9f2af628a6 ptx: add shift instructions
llvm-svn: 120982
2010-12-06 04:00:03 +00:00
Che-Liang Chiou e9baf13657 ptx: add command-line options for gpu target and ptx version
llvm-svn: 120423
2010-11-30 10:14:14 +00:00
Che-Liang Chiou c03d04ee1f Add simple arithmetics and %type directive for PTX
llvm-svn: 119485
2010-11-17 08:08:49 +00:00
Che-Liang Chiou 18d3e435cb Add test case mov.ll for PTX device function
llvm-svn: 116806
2010-10-19 13:21:51 +00:00
Che-Liang Chiou d6142976de Add test case for PTX ret instruction
llvm-svn: 114789
2010-09-25 07:49:54 +00:00
Che-Liang Chiou 299479020a Add ret instruction to PTX backend
llvm-svn: 114788
2010-09-25 07:46:17 +00:00
Eric Christopher dbb199d89b Add the exit instruction to the PTX target.
Patch by Che-Liang Chiou <clchiou@gmail.com>!

llvm-svn: 114294
2010-09-18 18:52:28 +00:00