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(parent: 97279a8) | patch
[LiveRangeEdit] Handle instructions with no defs correctly.
authorGeoff Berry <gberry@codeaurora.org>
Tue, 29 Nov 2016 19:31:35 +0000 (19:31 +0000)
committerGeoff Berry <gberry@codeaurora.org>
Tue, 29 Nov 2016 19:31:35 +0000 (19:31 +0000)
commit4d66cea34724687518d89f27bd5e40a7288d18f7
treee0abe72342cb65c68a598d2151943c3d6525aee3tree | snapshot
parent97279a8ca323355c68e56e9ec8d198f254ecd68bcommit | diff
[LiveRangeEdit] Handle instructions with no defs correctly.

Summary:
The code in LiveRangeEdit::eliminateDeadDef() that computes isOrigDef
doesn't handle instructions in which operand 0 is not a def (e.g. KILL)
correctly.  Add a check that operand 0 is a def before doing the rest of
the isOrigDef computation.

Reviewers: qcolombet, MatzeB, wmi

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D27174

llvm-svn: 288189
llvm/lib/CodeGen/LiveRangeEdit.cpp diff | blob | history
Domain: System / Toolchain;