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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-04-28 16:34:35 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-04-28 16:34:35 +0000 |
| commit | 08e791fdb301d3a4c6c9fa6b7f5c3e33921f38a6 (patch) | |
| tree | a540da32df05b71d515dc34ab3513fdfec4bfa58 /lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | |
| parent | d3d965714b89c5d5aeb65fb5ce06e081f0b3c049 (diff) | |
Don't coalesce a physical register with an incompatible virtual register.
If the physical register does not belong to the virtual register's regclass,
don't coalesce. The physical register could be an invalid operand for an
instruction using the vreg.
The regclass matching is done after determining the actual subregisters being copied.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70298 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp')
0 files changed, 0 insertions, 0 deletions