[llvm-bugs] [Bug 33005] New: LLVM Cross Compile for AARCH64 failing to find ARM intrinsics
llvm-bugs at lists.llvm.org
Thu May 11 07:27:58 PDT 2017
Bug ID: 33005
Summary: LLVM Cross Compile for AARCH64 failing to find ARM
OS: Windows NT
Component: new bugs
Assignee: unassignedbugs at nondot.org
Reporter: mboudreaux at panicbuttongames.com
CC: llvm-bugs at lists.llvm.org
When using cross compile with an Arch of "aarch64" and feature "+neon" (or
simply setting the target CPU to cortex-a57), and providing it a simple
application that does an rsqrt will fail with the following error:
LLVM ERROR: Cannot select: intrinsic %llvm.arm.neon.vrsqrts
cortex-a57 does support that intrinsic, but it appears LLVM is looking only at
the llvm.aarch64 intrinsics table without also checking the llvm.arm table.
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