diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2015-12-12 00:33:36 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2015-12-12 00:33:36 +0000 |
| commit | 93f55dd36d7d601054c203e3b3038e08174e0cb0 (patch) | |
| tree | 1d7963775fc43a053237804bd514cc58e0f96503 /lldb/packages/Python/lldbsuite/test/dosep.py | |
| parent | 65539e3c943704727b5b4cffca8fe0fb4bf0c14d (diff) | |
| download | bcm5719-llvm-93f55dd36d7d601054c203e3b3038e08174e0cb0.tar.gz bcm5719-llvm-93f55dd36d7d601054c203e3b3038e08174e0cb0.zip | |
[InstCombine] allow any pair of bitcasts to be combined
This change is discussed in D15392 and should allow us to effectively
revert:
http://llvm.org/viewvc/llvm-project?view=revision&revision=255261
if we canonicalize bitcasts ahead of extracts.
It should be safe to convert any pair of bitcasts into a single bitcast,
however, it was mentioned here:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20110829/127089.html
that we're not allowed to bitcast from an x86_mmx to some other types, but I'm
not seeing any failures from that, and we have regression tests in CodeGen/X86
that appear to cover all of those cases.
Some day we'll get to remove that MMX wart from LLVM IR completely?
Differential Revision: http://reviews.llvm.org/D15468
llvm-svn: 255399
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/dosep.py')
0 files changed, 0 insertions, 0 deletions
