4 Commits

Author	SHA1	Message	Date
Alastair Donaldson	c0833ce620	spirv-fuzz: Remove destructors from FuzzerPass subclasses (#4209) ... Subclasses of FuzzerPass no longer needlessly override the default destructor of FuzzerPass.	2021-03-23 13:31:27 +00:00
Alastair Donaldson	50ae4c5f44	Fix header guard macros (#3811)	2020-09-18 05:37:30 +01:00
Stefano Milizia	96bcc82743	spirv-fuzz: Pass to replace int operands with ints of opposite signedness (#3612) ... This PR introduces a new fuzzer pass, which: - finds all integer vectors or constants - finds or creates the corresponding constants with opposite signedness - records such constants as synonyms of the first ones - replaces the usages of the original constants with the new ones if allowed Fixes #2677.	2020-07-30 19:48:29 +01:00
Stefano Milizia	f12c40f5a6	spirv-fuzz: Fuzzer pass to interchange zero-like constants (#3524) ... This fuzzer pass: For each zero-like constant, either finds the existing definition of the corresponding toggled one (OpConstantNull becomes zero-valued scalar OpConstant or vice versa) or creates a new one if it doesn't exist and records that the two are synonyms For each use of these constants, probabilistically decides whether to change it with the corresponding toggled constant id (as described in #3486 ) Only uses inside blocks of instructions are considered and not, for example, in instructions declaring other constants.	2020-07-15 12:58:29 +01:00