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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 | ba39592cee4472bcd8b837f47c876233e5b8b558 (patch) | |
| tree | 1a94c2a92426510964a514289d061f355628ca1f /llvm/lib/CodeGen/MachineBlockPlacement.cpp | |
| parent | d64c99b07fcf768fd4833d85551e408830d6436b (diff) | |
| download | bcm5719-llvm-ba39592cee4472bcd8b837f47c876233e5b8b558.tar.gz bcm5719-llvm-ba39592cee4472bcd8b837f47c876233e5b8b558.zip | |
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
llvm-svn: 145992
Diffstat (limited to 'llvm/lib/CodeGen/MachineBlockPlacement.cpp')
0 files changed, 0 insertions, 0 deletions
