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| author | Mikael Holmen <mikael.holmen@ericsson.com> | 2017-11-16 07:01:23 +0000 |
|---|---|---|
| committer | Mikael Holmen <mikael.holmen@ericsson.com> | 2017-11-16 07:01:23 +0000 |
| commit | 56e4abc2cfc5f3868b28d2cfacb6ff27f0622d23 (patch) | |
| tree | f4d0d63e6afa09d96fd750e3b28916fad59a162b /llvm/lib/CodeGen/MIRCanonicalizerPass.cpp | |
| parent | b1b8aff2e7b2aa487657a6a13e2cf0bd9d7735d3 (diff) | |
| download | bcm5719-llvm-56e4abc2cfc5f3868b28d2cfacb6ff27f0622d23.tar.gz bcm5719-llvm-56e4abc2cfc5f3868b28d2cfacb6ff27f0622d23.zip | |
[MachineRegisterInfo] Avoid having dbg.values affect code generation
Summary:
Use use_nodbg_empty() rather than use_empty() in
MachineRegisterInfo::EmitLiveInCopies() when determining if a livein
register has any uses or not. Otherwise a single dbg.value can make us
generate different code, meaning -g would affect code generation.
Found when compiling code for my out-of-tree target. Unfortunately I
haven't been able to reproduce the problem on X86 or any of the other
in-tree targets that I tried, so no test case.
Reviewers: MatzeB
Reviewed By: MatzeB
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39044
llvm-svn: 318382
Diffstat (limited to 'llvm/lib/CodeGen/MIRCanonicalizerPass.cpp')
0 files changed, 0 insertions, 0 deletions
