Jakob Stoklund Olesen
5ea6203ea6
Fix more register and coalescing dependencies.
...
llvm-svn: 130859
2011-05-04 19:02:11 +00:00
Benjamin Kramer
b2992c34b5
Make tests more useful.
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lit needs a linter ...
llvm-svn: 130126
2011-04-25 10:12:01 +00:00
Eric Christopher
b51c27cd9a
Fix the bfi handling for or (and a mask) (and b mask). We need the two
...
masks to match inversely for the code as is to work. For the example given
we actually want:
bfi r0, r2, #1 , #1
not #0 , however, given the way the pattern is written it's not possible
at the moment.
Fixes rdar://9177502
llvm-svn: 128320
2011-03-26 01:21:03 +00:00
Evan Cheng
b6773d7e1f
(or (and (shl A, #shamt), mask), B) => ARMbfi B, A, ~mask where lsb(mask) == #shamt. rdar://8752056
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llvm-svn: 121606
2010-12-11 04:11:38 +00:00
Jim Grosbach
270540da7b
Add combiner patterns to more effectively utilize the BFI (bitfield insert)
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instruction for non-constant operands. This includes the case referenced
in the README.txt regarding a bitfield copy.
llvm-svn: 108608
2010-07-17 03:30:54 +00:00
Jim Grosbach
749f4fca0a
Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction
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and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.
llvm-svn: 108570
2010-07-16 23:05:05 +00:00
