This analysis pass assumes we have a program with a valid structure--all
loops must be ES2-compliant, and all function-calls must reference real
functions that exist. If we detected an error during compilation, our
program might not meet these criteria.
Change-Id: I4c7aefb3221438643614f1e0cbc2bad40b94b161
Bug: skia:12396
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/444982
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Most of the logic in IRGenerator::finish has moved to
Compiler::finalize. The @if/@switch pass has been combined with the pass
that verifies no dangling FunctionReference/TypeReference expressions,
saving one walk through the IR tree. Most program-finalization logic now
exists in Compiler and Analysis.
This change reorders our error generation logic slightly, and manages to
squeeze a few extra (valid) errors out of one of our fuzzer-generated
tests, but is not really intended to affect results in any significant
way.
Change-Id: I461de7c31f3980dedf74424e7826c032b1f40fd2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/444757
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Most of the code generated by the fuzzer is nonsense, but there is a
method to its madness. The crash is only triggered under specific
conditions:
- The runtime effect has enough helper functions to mostly fill up the
call graph hash-map. It won't rehash until it gets close to capacity.
- There must be several calls to built-in functions, in order to add
elements to the call graph to force a rehash.
The fuzzer-generated code manages to satisfy both these requirements.
Change-Id: I9a1d7535557fedd4e9bfece3930ac86ede291ffe
Bug: oss-fuzz:36655
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437118
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
