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| author | Evan Cheng <evan.cheng@apple.com> | 2010-05-04 20:26:52 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-05-04 20:26:52 +0000 |
| commit | 4c908f4181cd4617590f93b6a89f2d3422f6f116 (patch) | |
| tree | 76f3570fcc5c122074f5bbad4491830ddb91651a /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 687900ed8329ea4c35fffee0911fc8908cb41fa2 (diff) | |
| download | llvm-4c908f4181cd4617590f93b6a89f2d3422f6f116.zip llvm-4c908f4181cd4617590f93b6a89f2d3422f6f116.tar.gz llvm-4c908f4181cd4617590f93b6a89f2d3422f6f116.tar.bz2 | |
Teach PHI elimination to remove REG_SEQUENCE instructions and update references of the source operands with references of the destination with subreg indices. e.g.
%reg1029<def>, %reg1030<def> = VLD1q16 %reg1024<kill>, ...
%reg1031<def> = REG_SEQUENCE %reg1029<kill>, 5, %reg1030<kill>, 6
=>
%reg1031:5<def>, %reg1031:6<def> = VLD1q16 %reg1024<kill>, ...
PHI elimination now does more than phi elimination. It is really a de-SSA pass.
llvm-svn: 103039
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions