Don't include NI tags when verifying external module data layouts.#60720
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Don't include NI tags when verifying external module data layouts.#60720
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These are supposed to be stripped by optimization.
maleadt
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compiler:codegen
gbaraldi
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Jan 16, 2026
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Does this need 1.12 port as well? |
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No, this doesn't happen on 1.12, neither does the subsequent assertion failure. I think this is related to how DL representation and comparison changed in llvm/llvm-project#105735. |
KristofferC
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Jan 26, 2026
…60720) We're currently excepting callers of `addExternalModule` to provide modules with a DL that contains NI tags: ``` ERROR: LoadError: LLVM error: Added modules have incompatible data layouts: e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32 (module) vs e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32-ni:10:11:12:13 (jit) ``` Doing so is invalid and asserts later during compilation: ``` Assertion failed: (Target.isCompatibleDataLayout(getDataLayout()) && "Can't create a MachineFunction using a Module with a " "Target-incompatible DataLayout attached\n"), function init, file /workspace/srcdir/llvm-project/llvm/lib/CodeGen/MachineFunction.cpp, line 248. ``` The NI tags are stripped during optimization, and modules passed to `addExternalModule` are expected to be optimized as they are passed straight to the JIT (as opposed to `addModule`), so we should make sure to use the correct data layout. (cherry picked from commit 3a884a7)
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We're currently excepting callers of
addExternalModuleto provide modules with a DL that contains NI tags:Doing so is invalid and asserts later during compilation:
The NI tags are stripped during optimization, and modules passed to
addExternalModuleare expected to be optimized as they are passed straight to the JIT (as opposed toaddModule), so we should make sure to use the correct data layout.