http://llvm.org/bugs/show_bug.cgi?id=10852
Summary: ARM llc assertion
Product: tools
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=7214)
--> (http://llvm.org/bugs/attachment.cgi?id=7214)
minimal example
llc: llvm/lib/CodeGen/RegisterScavenging.cpp:215: void
llvm::RegScavenger::forward(): Assertion `SubUsed && "Using an undefined
register!"' failed.
Attached is a minimal example (minimal.ll), emitted by bugpoint.
Compile with:
$ llc minimal.ll -march=arm -mcpu=cortex-a8 -mtriple=armv7a-none-linux-gnueabi
The assertion started happening at r138791.
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