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atomics A.1b: real RMW emission (atomicrmw) + unit test (green)

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emitAtomicRmw: LLVMBuildAtomicRMW (binop from RmwKind; signed Min/Max vs
unsigned UMin/UMax from val_ty; singleThread=0; LLVM supplies ABI alignment).
examples/1701 green (add/sub/and/or/xor/min/max return old values, results
verified). Unit test 'emit: atomic rmw (add + signed/unsigned min)' locks
'atomicrmw add' + signed 'min' vs unsigned 'umin'. Suite green (716/0).
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agra
2026-06-20 10:19:44 +03:00
parent 718f27e27f
commit 05311646aa
6 changed files with 98 additions and 51 deletions
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examples/expected/1701-atomics-rmw.exit
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