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Add exceptions to check_ir_values #630

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Merged
merged 8 commits into from
Sep 21, 2024
Merged

Add exceptions to check_ir_values #630

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809940d
add ir_check_ignore metadata to check ir type check
tgymnich Sep 17, 2024
b5e13ac
allow fpext for metal
tgymnich Sep 18, 2024
fe80530
Revert "allow fpext for metal"
tgymnich Sep 20, 2024
9a2535e
Revert "add ir_check_ignore metadata to check ir type check"
tgymnich Sep 20, 2024
9ed1583
use callback to check for doubles used in logging
tgymnich Sep 20, 2024
2cc6241
improve callback
tgymnich Sep 20, 2024
8c6e38c
add tests
tgymnich Sep 20, 2024
b77553c
NFC clean-up.
maleadt Sep 21, 2024
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26 changes: 25 additions & 1 deletion src/metal.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -89,8 +89,32 @@ end
function validate_ir(job::CompilerJob{MetalCompilerTarget}, mod::LLVM.Module)
errors = IRError[]

function is_illegal_double_use(val)
if value_type(val) != LLVM.DoubleType()
return false
end

function used_for_logging(use::LLVM.Use)
usr = user(use)
if usr isa LLVM.CallInst
callee = called_operand(usr)
if callee isa LLVM.Function && startswith(name(callee), "metal_os_log")
return true
end
end

return false
end

if all(used_for_logging, uses(val))
return false
end

return true
end

# Metal never supports double precision
append!(errors, check_ir_values(mod, LLVM.DoubleType()))
append!(errors, check_ir_values(mod, is_illegal_double_use))
append!(errors, check_ir_values(mod, LLVM.IntType(128)))

errors
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13 changes: 13 additions & 0 deletions src/validation.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -330,3 +330,16 @@ function check_ir_values(mod::LLVM.Module, T_bad::LLVMType)

return errors
end

function check_ir_values(mod::LLVM.Module, T_bad)
errors = IRError[]

for fun in functions(mod), bb in blocks(fun), inst in instructions(bb)
if T_bad(inst) || any(T_bad, operands(inst))
bt = backtrace(inst)
push!(errors, ("use of $(string(inst))", bt, inst))
end
end

return errors
end