http://llvm.org/bugs/show_bug.cgi?id=16323
Bug ID: 16323
Summary: ARM FastISel is disabled for MCJIT
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: ARM
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
lib/ExecutionEngine/TargetSelect.cpp:EngineBuilder::selectTarget disables ARM
FastISel by changing OptLevel == CodeGenOpt::None to OptLevel ==
CodeGenOpt::Less.
The issue shows up when running an ARM self-hosted test-suite and running MCJIT
tests at O0, e.g.:
armv7-unknown-linux-gnueabihf-lli -use-mcjit -O0
-disable-lazy-compilation=false ../llvm/test/ExecutionEngine/MCJIT/pr13727.ll
The generated code is wrong and causes a crash.
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