Commit Graph

1165 Commits

Author SHA1 Message Date
Chris Lattner 2f03896a0f lower sra_parts on the dag, implementing it for the dag isel, and exposing
the ops to dag optimization.

llvm-svn: 23176
2005-08-31 19:09:57 +00:00
Nate Begeman e3287b85b7 Enable generation of AssertSext and AssertZext in the PPC backend.
llvm-svn: 23168
2005-08-31 01:58:39 +00:00
Chris Lattner e75b5e63a7 Fix a bug in my patch for legalizing to fsel. It cannot handle seteq/setne,
which I failed to include when I moved the code over.  This fixes
MallocBench/gs.

llvm-svn: 23140
2005-08-30 00:45:18 +00:00
Chris Lattner 62b9a5d1f8 Fix some really strange indentation that xcode likes to use.
no xcode, this is not right:

   if (!foo) break;
     X;

llvm-svn: 23138
2005-08-30 00:19:00 +00:00
Chris Lattner 9b577f108a implement SELECT_CC fully for the DAG->DAG isel!
llvm-svn: 23101
2005-08-26 21:23:58 +00:00
Chris Lattner b2854fadda Make fsel emission work with both the pattern and dag-dag selectors, by
giving it a non-instruction opcode.  The dag->dag selector used to not
select the operands of the fsel, because it thought that whole tree was
already selected.

llvm-svn: 23091
2005-08-26 20:25:03 +00:00
Chris Lattner 7f1fa8eaef implement the other half of the select_cc -> fsel lowering, which handles
when the RHS of the comparison is 0.0.  Turn this on by default.

llvm-svn: 23083
2005-08-26 17:36:52 +00:00
Chris Lattner f3d06c6417 add initial support for converting select_cc -> fsel in the legalizer
instead of in the backend.  This currently handles fsel cases with registers,
but doesn't have the 0.0 and -0.0 optimization enabled yet.

Once this is finished, special hack for fp immediates can go away.

llvm-svn: 23075
2005-08-26 00:52:45 +00:00
Nate Begeman 65ffd8fbf4 Remove option to make SetCC illegal on PowerPC after long discussion with
Chris.  This will be accomplished through correctly modeling CR's and
subregs.

llvm-svn: 23056
2005-08-25 20:01:10 +00:00
Nate Begeman f3ce09b36e Ack, typo
llvm-svn: 22981
2005-08-23 05:45:10 +00:00
Nate Begeman 7216ad415b Add an option to make SetCC illegal as a beta option
llvm-svn: 22979
2005-08-23 05:42:36 +00:00
Jim Laskey 6267b2c97c Make UINT_TO_FP and SINT_TO_FP use generic expansion.
llvm-svn: 22815
2005-08-17 00:40:22 +00:00
Chris Lattner 79f5ebc7b9 updates for changes in nodes
llvm-svn: 22808
2005-08-16 21:58:15 +00:00
Nate Begeman 371e49515d Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty
fixme from the PowerPC backend.  Emit slightly better code for legalizing
select_cc.

llvm-svn: 22805
2005-08-16 19:49:35 +00:00
Chris Lattner f22556d3ad Pull the LLVM -> DAG lowering code out of the pattern selector so that it
can be shared with the DAG->DAG selector.

llvm-svn: 22799
2005-08-16 17:14:42 +00:00