Commit Graph

30 Commits

Author SHA1 Message Date
Sergey Dmitrouk 842a51bad8 Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"
[DebugInfo] Add debug locations to constant SD nodes

This adds debug location to constant nodes of Selection DAG and updates
all places that create constants to pass debug locations
(see PR13269).

Can't guarantee that all locations are correct, but in a lot of cases choice
is obvious, so most of them should be. At least all tests pass.

Tests for these changes do not cover everything, instead just check it for
SDNodes, ARM and AArch64 where it's easy to get incorrect locations on
constants.

This is not complete fix as FastISel contains workaround for wrong debug
locations, which drops locations from instructions on processing constants,
but there isn't currently a way to use debug locations from constants there
as llvm::Constant doesn't cache it (yet). Although this is a bit different
issue, not directly related to these changes.

Differential Revision: http://reviews.llvm.org/D9084

llvm-svn: 235989
2015-04-28 14:05:47 +00:00
Daniel Jasper 48e93f7181 Revert "[DebugInfo] Add debug locations to constant SD nodes"
This breaks a test:
http://bb.pgr.jp/builders/cmake-llvm-x86_64-linux/builds/23870

llvm-svn: 235987
2015-04-28 13:38:35 +00:00
Sergey Dmitrouk adb4c69d5c [DebugInfo] Add debug locations to constant SD nodes
This adds debug location to constant nodes of Selection DAG and updates
all places that create constants to pass debug locations
(see PR13269).

Can't guarantee that all locations are correct, but in a lot of cases choice
is obvious, so most of them should be. At least all tests pass.

Tests for these changes do not cover everything, instead just check it for
SDNodes, ARM and AArch64 where it's easy to get incorrect locations on
constants.

This is not complete fix as FastISel contains workaround for wrong debug
locations, which drops locations from instructions on processing constants,
but there isn't currently a way to use debug locations from constants there
as llvm::Constant doesn't cache it (yet). Although this is a bit different
issue, not directly related to these changes.

Differential Revision: http://reviews.llvm.org/D9084

llvm-svn: 235977
2015-04-28 11:56:37 +00:00
Eric Christopher 147bba2385 Migrate NVPTXISelDAGToDAG's getSubtarget to a runOnMachineFunction
version. Update NVPTXInstrInfo accordingly.

llvm-svn: 227538
2015-01-30 01:40:59 +00:00
Justin Holewinski d4d2e9bd0e [NVPTX] Generate a more optimal sequence for select of i1
Instead of creating a pattern like "(p && a) || ((!p) && b)",
just expand the i8 operands to i32 and perform the selp on them.

Fixes PR22246

llvm-svn: 227123
2015-01-26 19:52:20 +00:00
Justin Holewinski 23df659e6d [NVPTX] Handle floating-point conversion patterns that are not explicitly ordered or unordered
Fixes PR22322

llvm-svn: 227117
2015-01-26 19:11:20 +00:00
Craig Topper c50d64b07b Replace neverHasSideEffects=1 with hasSideEffects=0 in all .td files.
llvm-svn: 222801
2014-11-26 00:46:26 +00:00
Justin Holewinski 428cf0e49a [NVPTX] Improve handling of FP fusion
We now consider the FPOpFusion flag when determining whether
to fuse ops.  We also explicitly emit add.rn when fusion is
disabled to prevent ptxas from fusing the operations on its
own.

llvm-svn: 213287
2014-07-17 18:10:09 +00:00
Justin Holewinski e5a1173f67 [NVPTX] Add missing .v4 qualifier on vector store instruction
llvm-svn: 213276
2014-07-17 16:58:56 +00:00
Justin Holewinski 360a5cfcd3 [NVPTX] Add support for [SHL,SRA,SRL]_PARTS
llvm-svn: 211936
2014-06-27 18:35:40 +00:00
Justin Holewinski eafe26d082 [NVPTX] Implement fma and imad contraction as target DAGCombiner patterns
This also introduces DAGCombiner patterns for mul.wide to multiply two smaller integers and produce a larger integer

llvm-svn: 211935
2014-06-27 18:35:37 +00:00
Justin Holewinski 832e09b4d9 [NVPTX] Add support for efficient rotate instructions on SM 3.2+
llvm-svn: 211934
2014-06-27 18:35:33 +00:00
Justin Holewinski ca7a4f136d [NVPTX] Add isel patterns for bit-field extract (bfe)
llvm-svn: 211932
2014-06-27 18:35:27 +00:00
Justin Holewinski 10c25968d8 [NVPTX] Add support for isspacep instruction
llvm-svn: 211931
2014-06-27 18:35:24 +00:00
Justin Holewinski 7706107e6f [NVPTX] Add missing patterns for div.approx with immediate denominator
llvm-svn: 199746
2014-01-21 14:40:05 +00:00
Justin Holewinski 3d49e5c655 [NVPTX] Fix handling of indirect calls
Using a special machine node is cleaner than an InlineAsm node, and fixes an assertion failure in InstrEmitter

llvm-svn: 194810
2013-11-15 12:30:04 +00:00
Justin Holewinski debe686f05 [NVPTX] Add missing patterns for i1 [s,u]int_to_fp
llvm-svn: 187800
2013-08-06 14:13:34 +00:00
Justin Holewinski 871ec93909 [NVPTX] Fix bug in stack code generation causes by MC conversion
We do use a very small set of physical registers, so account for
them in the virtual register encoding between MachineInstr and MC

llvm-svn: 187799
2013-08-06 14:13:31 +00:00
Justin Holewinski cd069e6dec [NVPTX] Use approximate FP ops when unsafe-fp-math is used, and append
.ftz to instructions if the nvptx-f32ftz attribute is set to "true"

llvm-svn: 186820
2013-07-22 12:18:04 +00:00
Justin Holewinski 318c625ff4 [NVPTX] Add support for native SIGN_EXTEND_INREG where available
llvm-svn: 185330
2013-07-01 12:58:56 +00:00
Justin Holewinski 8df08c73c6 [NVPTX] Select -1 instead of 1 when anyextend'ing i1 types
This makes it more consistent with the ZeroOrNegativeOneBooleanContent flag

llvm-svn: 185179
2013-06-28 17:58:15 +00:00
Justin Holewinski af258be134 [NVPTX] Add (1.0 / sqrt(x)) => rsqrt(x) generation when allowable by FP flags
llvm-svn: 185178
2013-06-28 17:58:13 +00:00
Justin Holewinski dc372df63b [NVPTX] Add support for cttz/ctlz/ctpop
llvm-svn: 185176
2013-06-28 17:58:07 +00:00
Justin Holewinski dc5e3b68f5 [NVPTX] Clean up comparison/select/convert patterns and factor out PTX instructions from their patterns
Test case is no breakage

llvm-svn: 185175
2013-06-28 17:58:04 +00:00
Justin Holewinski f8f7091722 [NVPTX] Remove i8 register class. PTX support for i8 (.b8, .u8, .s8) is rather poor and we're better off just ignoring it and letting LLVM expand all i8 ops out to i16.
llvm-svn: 185174
2013-06-28 17:57:59 +00:00
Justin Holewinski fe44314f21 [NVPTX] Add infrastructure for vector loads/stores of parameters
llvm-svn: 185171
2013-06-28 17:57:51 +00:00
Justin Holewinski 48f4ad3fc0 [NVPTX] Add @llvm.nvvm.sqrt.f() intrinsic
llvm-svn: 182394
2013-05-21 16:51:30 +00:00
Justin Holewinski be8dc6499a [NVPTX] Disable vector registers
Vectors were being manually scalarized by the backend.  Instead,
let the target-independent code do all of the work.  The manual
scalarization was from a time before good target-independent support
for scalarization in LLVM. However, this forces us to specially-handle
vector loads and stores, which we can turn into PTX instructions that
produce/consume multiple operands.

llvm-svn: 174968
2013-02-12 14:18:49 +00:00
Benjamin Kramer bde9176663 Fix typos found by http://github.com/lyda/misspell-check
llvm-svn: 157885
2012-06-02 10:20:22 +00:00
Justin Holewinski ae556d3ef7 This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it.
The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

llvm-svn: 156196
2012-05-04 20:18:50 +00:00