Tint changes during Origin Trial

Changes for M98

Breaking Changes

• Taking the address of a vector component is no longer allowed.

Changes for M97

Breaking Changes

• Deprecated modf() and frexp() builtin overloads that take a pointer second parameter have been removed.
• Deprecated texture builtin functions that accepted a read access controlled storage texture have been removed.
• Storage textures must now only use the write access control.

Deprecated Features

• The ignore() builtin has been replaced with phony-assignment. gpuweb#2127

New Features

• any() and all() now support a bool parameter. These simply return the passed argument. tint:1253
• Call statements may now include functions that return a value (ignore() is no longer needed).
• The interpolate(flat) attribute can now be specified on integral user-defined IO. It will eventually become an error to define integral user-defined IO without this attribute.
• Matrix construction from scalar element values is now supported.

Fixes

• Swizzling of vec3 types in storage and uniform buffers has been fixed for Metal 1.x. tint:1249
• Calling a function that returns an unused value no longer produces an FXC compilation error. tint:1259

Changes for M95

New Features

• The size of an array can now be defined using a non-overridable module-scope constant
• The num_workgroups builtin is now supported.

Fixes

• Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. tint:1150, tint:1166
• Identifiers beginning with an underscore are now correctly rejected. tint:1179
• abs() fixed for unsigned integers on SPIR-V backend tint:1179