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| author | Eli Friedman <efriedma@codeaurora.org> | 2016-12-14 20:25:26 +0000 |
|---|---|---|
| committer | Eli Friedman <efriedma@codeaurora.org> | 2016-12-14 20:25:26 +0000 |
| commit | 10576e73c9a814d06cc86ff2b35ceae6dbc7af85 (patch) | |
| tree | 01602f6b70c2c310f4021604a93273b5f70c1873 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 43c8b6b7b2277e1ae07ca86ee58859a5aab6acc1 (diff) | |
| download | bcm5719-llvm-10576e73c9a814d06cc86ff2b35ceae6dbc7af85.tar.gz bcm5719-llvm-10576e73c9a814d06cc86ff2b35ceae6dbc7af85.zip | |
[ARM] Add ARMISD::VLD1DUP to match vld1_dup more consistently.
Currently, there are substantial problems forming vld1_dup even if the
VDUP survives legalization. The lack of an actual node
leads to terrible results: not only can we not form post-increment vld1_dup
instructions, but we form scalar pre-increment and post-increment
loads which force the loaded value into a GPR. This patch fixes that
by combining the vdup+load into an ARMISD node before DAGCombine
messes it up.
Also includes a crash fix for vld2_dup (see testcase @vld2dupi8_postinc_variable).
Differential Revision: https://reviews.llvm.org/D27694
llvm-svn: 289703
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions
