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| author | Matthias Braun <matze@braunis.de> | 2016-04-04 18:56:13 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-04-04 18:56:13 +0000 |
| commit | 870c34f0cfe0678dedcec33770fe4304b60c2e0c (patch) | |
| tree | 46113c7f1c7c847dcceddbb570c39e0262fd6f7b /llvm/lib/Transforms/ObjCARC/ProvenanceAnalysisEvaluator.cpp | |
| parent | eb3219a9c23444361172f9840f2338cc5de0152d (diff) | |
| download | bcm5719-llvm-870c34f0cfe0678dedcec33770fe4304b60c2e0c.tar.gz bcm5719-llvm-870c34f0cfe0678dedcec33770fe4304b60c2e0c.zip | |
ARM, AArch64, X86: Check preserved registers for tail calls.
We can only perform a tail call to a callee that preserves all the
registers that the caller needs to preserve.
This situation happens with calling conventions like preserver_mostcc or
cxx_fast_tls. It was explicitely handled for fast_tls and failing for
preserve_most. This patch generalizes the check to any calling
convention.
Related to rdar://24207743
Differential Revision: http://reviews.llvm.org/D18680
llvm-svn: 265329
Diffstat (limited to 'llvm/lib/Transforms/ObjCARC/ProvenanceAnalysisEvaluator.cpp')
0 files changed, 0 insertions, 0 deletions
