Commit Graph

10 Commits

Author SHA1 Message Date
dan sinclair
eda2cfbe12
Cleanup includes. (#1795)
This Cl cleans up the include paths to be relative to the top level
directory. Various include-what-you-use fixes have been added.
2018-08-03 15:06:09 -04:00
dan sinclair
2cce2c5b97
Move tests into namespaces (#1689)
This CL moves the test into namespaces based on their directories.
2018-07-11 09:24:49 -04:00
Steven Perron
fe2fbee294 Delete the insert-extract-elim pass.
Replaces anything that creates an insert-extract-elim pass and create
a simplifiation pass instead.  Then delete the implementation of the
pass.

Fixes https://github.com/KhronosGroup/SPIRV-Tools/issues/1570.
2018-06-01 10:13:39 -04:00
GregF
f28b106173 InsertExtractElim: Split out DeadInsertElim as separate pass 2018-01-30 08:52:14 -05:00
Greg Fischer
684997eb72 DeadInsertElim: Detect and DCE dead Inserts
This adds Dead Insert Elimination to the end of the
--eliminate-insert-extract pass. See the new tests for examples of code
that will benefit.

Essentially, this removes OpCompositeInsert instructions which are not
used, either because there is no instruction which uses the value at the
index it is inserted, or because a subsequent insert intercepts any such
use.

This code has been seen to remove significant amounts of dead code from
real-life HLSL shaders being ported to Vulkan. In fact, it is needed to
remove dead texture samples which cause Vulkan validation layer errors
(unbound textures and samplers) if not removed . Such DCE is thus
required for fxc equivalence and legalization.

This analysis operates across "chains" of Inserts which can also contain
Phi instructions.
2018-01-25 16:07:21 -05:00
Greg Fischer
5eafc00ad5 InsertExtractElim: Optimize through VectorShuffle, Mix
This improves Extract replacement to continue through VectorShuffle.
It will also handle Mix with 0.0 or 1.0 in the a-value of the desired
component.

To facilitate optimization of VectorShuffle, the algorithm was refactored
to pass around the indices of the extract in a vector rather than pass the
extract instruction itself. This allows the indices to be modified as the
algorithm progresses.
2018-01-12 09:41:45 -05:00
Diego Novillo
83228137e1 Re-format source tree - NFC.
Re-formatted the source tree with the command:

$ /usr/bin/clang-format -style=file -i \
    $(find include source tools test utils -name '*.cpp' -or -name '*.h')

This required a fix to source/val/decoration.h.  It was not including
spirv.h, which broke builds when the #include headers were re-ordered by
clang-format.
2017-11-27 14:31:49 -05:00
GregF
e28edd458b Optimize loads/stores on nested structs
Also fix LocalAccessChainConvert test: nested structs now convert

Add InsertExtractElim test for nested struct
2017-11-21 17:56:03 -05:00
GregF
1d477b9898 Opt: Add opaque tests 2017-08-15 15:54:41 -06:00
GregF
6136bf9e0b mem2reg: Add InsertExtractElimPass 2017-06-21 08:13:15 -04:00