2 Commits

Author	SHA1	Message	Date
David Stuttard	69f7d81d0a	[AMDGPU] Set number vgprs used in PS shaders based on input registers actually used ... For PS shaders we can use the input SPI_PS_INPUT_ENA and SPI_PS_INPUT_ADDR registers Calculate the number of VGPR registers used as input VGPRs based on these registers rather than the arguments passed in (this conservatively always allocates the maximum). Differential Revision: https://reviews.llvm.org/D101633 Change-Id: Idf7c060cbbd5f7e3300102c55ecee3c07f209de6	2021-10-08 14:24:35 +01:00
Sebastian Neubauer	2b08f6af62	[AMDGPU] Improve register computation for indirect calls ... First, collect the register usage in each function, then apply the maximum register usage of all functions to functions with indirect calls. This is more accurate than guessing the maximum register usage without looking at the actual usage. As before, assume that indirect calls will hit a function in the current module. Differential Revision: https://reviews.llvm.org/D105839	2021-07-20 13:48:50 +02:00