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Commit Graph

159 Commits

Author SHA1 Message Date
Chris Lattner
ada7ac14a1 add an accessor to provide more checking
llvm-svn: 23289
2005-09-09 01:15:01 +00:00
Chris Lattner
2490f8f606 use new accessors to simplify code. Add checking to make sure top-level instr
definitions are void

llvm-svn: 23288
2005-09-09 01:11:44 +00:00
Chris Lattner
334e21eb98 Fix incorrect comment
llvm-svn: 23285
2005-09-08 23:26:30 +00:00
Chris Lattner
a6d21c974c Implement a complete type inference system for dag patterns, based on the
constraints defined in the DAG node definitions in the .td files.  This
allows us to infer (and check!) the types for all nodes in the current
ppc .td file.  For example, instead of:

Inst pattern EQV:       (set GPRC:i32:$rT, (xor (xor GPRC:i32:$rA, GPRC:i32:$rB), (imm)<<Predicate_immAllOnes>>))

we now fully infer:

Inst pattern EQV:       (set:void GPRC:i32:$rT, (xor:i32 (xor:i32 GPRC:i32:$rA, GPRC:i32:$rB), (imm:i32)<<Predicate_immAllOnes>>))

from:  (set GPRC:$rT, (not (xor GPRC:$rA, GPRC:$rB)))
llvm-svn: 23284
2005-09-08 23:22:48 +00:00
Chris Lattner
152a72de2c Parse information about type constraints on SDNodes
llvm-svn: 23281
2005-09-08 21:27:15 +00:00
Chris Lattner
ef07fffe37 use node info in the one place we currently use it
llvm-svn: 23280
2005-09-08 21:04:46 +00:00
Chris Lattner
d9930002aa start parsing SDNode info records
llvm-svn: 23279
2005-09-08 21:03:01 +00:00
Chris Lattner
03637c7200 Keep names even when inlining. This allows us to realize that ADDI is:
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>:$imm))

not:

(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>))

(we keep the ":$imm")

llvm-svn: 23269
2005-09-08 17:45:12 +00:00
Chris Lattner
65c98b6441 Initial cut of the dag isel generator. This is still very much a work in
progress.  It correctly parses instructions and pattern fragments and glues
together pattern fragments into instructions.

The only code it generates currently is some boilerplate code for things
like the EntryNode.

llvm-svn: 23261
2005-09-07 23:44:43 +00:00