PowerPC: Simplify BLR pattern.
authorUlrich Weigand <ulrich.weigand@de.ibm.com>
Tue, 26 Mar 2013 10:53:27 +0000 (10:53 +0000)
committerUlrich Weigand <ulrich.weigand@de.ibm.com>
Tue, 26 Mar 2013 10:53:27 +0000 (10:53 +0000)
commit3b2552933642c19ce5e8836d82c26c562910e239
treefa94d1abba258b889772f6b15f96f7c5f2b153a9
parente8680da874631c0531872c83d6643e05bbefebd1
PowerPC: Simplify BLR pattern.

The BLR pattern cannot be recognized by the asm parser in its current form.
This complexity is due to an apparent attempt to enable conditional BLR
variants.  However, none of those can ever be generated by current code;
the pattern is only ever created using the default "pred" operand.

To simplify the pattern and allow it to be recognized by the parser,
this commit removes those attempts at conditional BLR support.

When we later come back to actually add real conditional BLR, this
should probably be done via a fully generic conditional branch pattern.

No change in generated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178002 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
lib/Target/PowerPC/MCTargetDesc/PPCPredicates.h
lib/Target/PowerPC/PPCInstrInfo.td