llvm-project

549bc55c - [mlir][spirv] Fix int type declaration duplication when serializing (#143108)

[mlir][spirv] Fix int type declaration duplication when serializing (#143108) At the MLIR level unsigned integer and signless integers are different types. Indeed when looking up the two types in type definition cache they do not match. Hence when translating a SPIR-V module which contains both usign and signless integers will contain the same type declaration twice (something like OpTypeInt 32 0) which is not permitted in SPIR-V and such generated modules fail validation. This patch solves the problem by mapping unisgned integer types to singless integer types before looking up in the type definition cache. --------- Signed-off-by: Davide Grohmann <davide.grohmann@arm.com>