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| author | Jim Grosbach <grosbach@apple.com> | 2011-12-06 23:43:54 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-12-06 23:43:54 +0000 |
| commit | a66512e59142f36ae653460891c058d5e78e07e3 (patch) | |
| tree | ed54e25d590eb44242499be11d3bb4d54916573c /lib/CodeGen/MachineBlockPlacement.cpp | |
| parent | f8de54f37be57e5d27889bbfb26ecda602700566 (diff) | |
| download | llvm-a66512e59142f36ae653460891c058d5e78e07e3.tar.gz llvm-a66512e59142f36ae653460891c058d5e78e07e3.tar.bz2 llvm-a66512e59142f36ae653460891c058d5e78e07e3.tar.xz | |
Extend AsmMatcher token literal matching to allow aliasing.
For example, ARM allows:
vmov.u32 s4, #0 -> vmov.i32, #0
'u32' is a more specific designator for the 32-bit integer type specifier
and is legal for any instruction which accepts 'i32' as a datatype suffix.
We want to say,
def : TokenAlias<".u32", ".i32">;
This works by marking the match class of 'From' as a subclass of the
match class of 'To'.
rdar://10435076
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145992 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineBlockPlacement.cpp')
0 files changed, 0 insertions, 0 deletions