Validate structured exits from constructs
* Add checks that exits from a construct are valid
* Add Construct::IsStructuredExit()
* uses specific rules for each type of construct
* Added a test and check for #2213
* Adding tests for bad loop and continue exits
* Fix identification of continue block that prevented some selections
from having any blocks
In WebGPU all blocks are required to be reachable, unless they are one of two
specific degenerate cases for merge-block or continue-target. This PR adds in
checking for these conditions.
Fixes#2068
In logical addressing mode, we are not allowed to generate variables
pointers. There is already a check for OpSelect. However, OpPhi
and OpPtrAccessChain are not checked to make sure it does not
generate an variable pointer. I've added those checks.
Fixes#1957.
This commit will change the message for unknown extensions from an error
to a warning.
Code was added to limit the number of warning messages so that consummer
of the messages are not overwhelmed. This is standard practice in
compilers.
Many other issues were found at while looking into this. They have been
documented in #1950.
Fixes http://crbug.com/875547.
* Validate all type ids.
The validator does not check if the type of an instruction is actually
a type unless the OpCode has a specific requirement. For example,
OpFAdd is checked, but OpUndef is not.
The commit add a generic check that if there is a type id then the id
defines a type.
http://crbug.com/876694
* Merge other checks for type into new one.
There are a couple check that the type id is a type for specific
opcodes. Those have been mereged into 1.
Small changes to other test cases to make them valid enough for the
purpose of the test.
Many of the files have using std::<foo> statements in them, but then the
use of <foo> will be inconsistently std::<foo> or <foo> scattered
through the file. This CL removes all of the using statements and
updates the code to have the required std:: prefix.
This CL updates the diag() calls in validate_cfg to provide the
associated instruction. This fixes a couple places where we output the
last line of the file instead of the instruction as the disassembly.
This CL changes the signature of diag() to accept an Instruction instead
of the instructions position.
A deprecated variant that accepts the position is available but will be
removed in the near future.
This CL moves the various validate files into the val/ directory with
the rest of the validation infrastructure. This matches how opt/ is
setup with the passes with the infrastructure.
