https://bugs.llvm.org/show_bug.cgi?id=50781
Bug ID: 50781
Summary: [X86] __tune_* defines don't follow -mtune
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Note this is really a clang bug, but there's no good component for target
specific clang code and this component has the right CC list.
When I implemented -mtune support, I failed to make the preprocessor defines
follow the -mtune setting.
This probably means we need a setTuneCPU function like setCPU in TargetInfo.
Then we need to split defineCPUMacros to remove the tuning define. I think
other targets use defineCPUMacros, but set a bool to not define the tune
defines so removing the code simplies the interface.
I probably won't have a chance to work on this for a while. Pengfei, can you or
someone at Intel handle it?
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