https://bugs.llvm.org/show_bug.cgi?id=32723
Bug ID: 32723
Summary: small .ll program crashes with -pre-RA-sched=list-ilp
(llvm-stress)
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Target Description Classes
Assignee: unassignedb...@nondot.org
Reporter: pauls...@linux.vnet.ibm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 18321
--> https://bugs.llvm.org/attachment.cgi?id=18321&action=edit
reduced llvm-stress test case
This small program crashes with list-ilp scheduler.
It seems that
unsigned RCId = TLI->getRepRegClassFor(VT)->getID();
doesn't work, when VT is MVT::Untyped, because getRepRegClassFor(MVT::Untyped)
returns nullptr.
Does Untyped signify an error, or is there supposed to be a regclass for this
type?
bin/llc list-ilp-crash.ll -mtriple=s390x-linux-gnu -mcpu=z13
-pre-RA-sched=list-ilp
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