http://llvm.org/bugs/show_bug.cgi?id=16493
Bug ID: 16493
Summary: PPC64: unsupported relocation modifier in Dwarf debug
info crashes llc
Product: libraries
Version: trunk
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: PowerPC
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10796
--> http://llvm.org/bugs/attachment.cgi?id=10796&action=edit
.ll file crashing llc
Run llc -filetype=obj -O0 ppcbug.ll using the attached file ppcbug.ll.
This results in the following assertion error:
Unsupported Modifier
UNREACHABLE executed at
/home/u0012540/llvm/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp:303!
Root cause seems to be the debug info for the TLS variable.
LLVM generates
.quad FE_DFL_ENV@DTPOFF
Similar C code generates with ggc:
.quad FE_DFL_ENV@dtprel+0x8000
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