67d3ef74b3
This PR continues https://github.com/llvm/llvm-project/pull/101732 changes in virtual register processing aimed to improve correctness of emitted MIR between passes from the perspective of MachineVerifier. Namely, the following changes are introduced: * register classes (lib/Target/SPIRV/SPIRVRegisterInfo.td) and instruction patterns (lib/Target/SPIRV/SPIRVInstrInfo.td) are corrected and simplified (by removing unnecessary sophisticated options) -- e.g., this PR gets rid of duplicating 32/64 bits patterns, removes ANYID register class and simplifies definition of the rest of register classes, * hardcoded LLT scalar types in passes before instruction selection are corrected -- the goal is to have correct bit width before instruction selection, and use 64 bits registers for pattern matching in the instruction selection pass; 32-bit registers remain where they are described in such terms by SPIR-V specification (like, for example, creation of virtual registers for scope/mem semantics operands), * rework virtual register type/class assignment for calls/builtins lowering, * a series of minor changes to fix validity of emitted code between passes: - ensure that that bitcast changes the type, - fix the pattern for instruction selection for OpExtInst, - simplify inline asm operands usage, - account for arbitrary integer sizes / update legalizer rules; * add '-verify-machineinstrs' to existed test cases. See also https://github.com/llvm/llvm-project/issues/88129 that this PR may resolve. This PR fixes a great number of issues reported by MachineVerifier and, as a result, reduces a number of failed test cases for the mode with expensive checks set on from ~200 to ~57.
28 lines
748 B
LLVM
28 lines
748 B
LLVM
; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s
|
|
|
|
;; OpenCL global memory
|
|
define ptr addrspace(1) @getConstant1() {
|
|
ret ptr addrspace(1) null
|
|
}
|
|
|
|
;; OpenCL constant memory
|
|
define ptr addrspace(2) @getConstant2() {
|
|
ret ptr addrspace(2) null
|
|
}
|
|
|
|
;; OpenCL local memory
|
|
define ptr addrspace(3) @getConstant3() {
|
|
ret ptr addrspace(3) null
|
|
}
|
|
|
|
; CHECK: [[INT:%.+]] = OpTypeInt 8
|
|
|
|
; CHECK-DAG: [[PTR_AS1:%.+]] = OpTypePointer CrossWorkgroup [[INT]]
|
|
; CHECK-DAG: OpConstantNull [[PTR_AS1]]
|
|
|
|
; CHECK-DAG: [[PTR_AS2:%.+]] = OpTypePointer UniformConstant [[INT]]
|
|
; CHECK-DAG: OpConstantNull [[PTR_AS2]]
|
|
|
|
; CHECK-DAG: [[PTR_AS3:%.+]] = OpTypePointer Workgroup [[INT]]
|
|
; CHECK-DAG: OpConstantNull [[PTR_AS3]]
|