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| author | Alan Baker <alanbaker@google.com> | 2018-01-16 11:15:06 -0500 |
|---|---|---|
| committer | Alan Baker <alanbaker@google.com> | 2018-01-25 09:42:00 -0800 |
| commit | 2e93e806e454e2cfefabf217320038188c6c1fb6 (patch) | |
| tree | 056b1c576238a0854942cc734619af5c42c1eebe /include | |
| parent | b2eb8404689a38dfeeb3aad51715bec4b9faf6f2 (diff) | |
| download | spirv-tools-2e93e806e454e2cfefabf217320038188c6c1fb6.tar.gz | |
Initial implementation of if conversion
* Handles simple cases only
* Identifies phis in blocks with two predecessors and attempts to
convert the phi to an select
* does not perform code motion currently so the converted values must
dominate the join point (e.g. can't be defined in the branches)
* limited for now to two predecessors, but can be extended to handle
more cases
* Adding if conversion to -O and -Os
Diffstat (limited to 'include')
| -rw-r--r-- | include/spirv-tools/optimizer.hpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/spirv-tools/optimizer.hpp b/include/spirv-tools/optimizer.hpp index d1679abc..b1e2cfe0 100644 --- a/include/spirv-tools/optimizer.hpp +++ b/include/spirv-tools/optimizer.hpp @@ -482,6 +482,9 @@ Optimizer::PassToken CreateCCPPass(); // Current workaround: Avoid OpUnreachable instructions in loops. Optimizer::PassToken CreateWorkaround1209Pass(); +// Creates a pass that converts if-then-else like assignments into OpSelect. +Optimizer::PassToken CreateIfConversionPass(); + } // namespace spvtools #endif // SPIRV_TOOLS_OPTIMIZER_HPP_ |