Displaying 1 result from an estimated 1 matches for "aform_1".
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xform_1
2009 Jun 17
2
[LLVMdev] possible PowerPC (32bits) backend bug
...like this:
def : Pat<(fsub F4RC:$B, (fmul F4RC:$A, F4RC:$C)),
(FNMSUBS F4RC:$A, F4RC:$C, F4RC:$B)>,
Requires<[FPContractions]>;
The unique feature of this parttern is that it maps a pair of
LLVM IR instructions into a single PPC instruction.
def FNMSUBS : AForm_1<59, 30,(outs F4RC:$FRT), (ins F4RC:$FRA, F4RC:$FRC, F4RC:$FRB),
"fnmsubs $FRT, $FRA, $FRC, $FRB", FPGeneral,
[(set F4RC:$FRT, (fneg (fsub (fmul F4RC:$FRA, F4RC:$FRC),F4RC:$FRB)))]>,
Requires<[FPContractions]>;
Now...