http://llvm.org/bugs/show_bug.cgi?id=14751
Bug #: 14751
Summary: PowerPC 64: Unsupported type in getConstantFP during
pass 'PowerPC DAG->DAG Pattern Instruction Selection'
Product: new-bugs
Version: trunk
Platform: Other
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 9776
--> http://llvm.org/bugs/attachment.cgi?id=9776
Bugpoint-reduced file demonstrating the failure.
Compiling the attached bugpoint-reduced file for/on target
powerpc64-unknown-linux-gnu results in a reached unreachable.
Message is:
Unsupported type in getConstantFP
UNREACHABLE executed at
.../llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1085!
This happens while running pass 'PowerPC DAG->DAG Pattern Instruction
Selection' on function '@_D3std4math4sqrtFNaNbNfcZc'.
First guess without looking at the source: the PPC 128bit doubledouble type is
not considered in this function.
llc -version:
LLVM (http://llvm.org/):
LLVM version 3.3svn
DEBUG build with assertions.
Built Dec 27 2012 (18:08:22).
Default target: powerpc64-unknown-linux-gnu
Host CPU: pwr7
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