tree 87d3cad76e49c541fb66a30d3e111a4018f3c1a5
parent 4a28259cc84b44df1030d42f48a5285a28a141c4
author David Neto <dneto@google.com> 1564530766 -0400
committer GitHub <noreply@github.com> 1564530766 -0400
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Add pass to inject code for robust-buffer-access semantics (#2771)


spirv-opt: Add --graphics-robust-access

Clamps access chain indices so they are always
in bounds.

Assumes:
- Logical addressing mode
- No runtime-array-descriptor-indexing
- No variable pointers

Adds stub code for clamping coordinate and samples
for OpImageTexelPointer.

Adds SinglePassRunAndFail optimizer test fixture.

Android.mk: add source/opt/graphics_robust_access_pass.cpp

Adds Constant::GetSignExtendedValue, Constant::GetZeroExtendedValue