Commit Graph

2 Commits

Author SHA1 Message Date
John Stiles
32385b7070 Report incomplete expression-statements as errors.
Previously, a dangling type or function reference would be eliminated
silently with optimizations on, or would assert when optimizations were
off.

Change-Id: Ib2e273b6f069724e8872c9cb97351b647b875a62
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469525
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-11-09 22:10:18 +00:00
John Stiles
ee525493ea Add test for incomplete expressions.
The ExpressionStatement currently eliminates dangling references without
reporting them as an error. This happens due to optimization; these
expressions (being meaningless) have no side effects, and so the
optimizer replaces them with Nop. When the optimizer is off, these
programs trigger an assert:

https://osscs.corp.google.com/skia/skia/+/main:src/sksl/SkSLAnalysis.cpp;l=582;drc=e7a953524787e3bd0c437ec52de4e40986689825

A followup CL will fix ExpressionStatements so that they report
incomplete expressions as an error.

Change-Id: Ica49166032e670749fc1b4e7a869fbab03364d4f
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469524
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2021-11-09 22:09:49 +00:00