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122 Commits

Author SHA1 Message Date
Nate Begeman
c09eeec0eb Implement i64<->fp using the fctidz/fcfid instructions on PowerPC when we 
are allowed to generate 64-bit-only PowerPC instructions for 32 bit hosts,
such as the PowerPC 970.

This speeds up 189.lucas from 81.99 to 32.64 seconds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23250 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 22:03:27 +00:00
Chris Lattner
1e9de3ed2d Decouple fsqrt from gpul optimizations, implementing fsqrt.ll. 
Remove the -enable-gpopt option which is subsumed by feature flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23218 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:33:05 +00:00
Chris Lattner
f505949580 Restore this patch now that the latent bug has been fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23209 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 01:24:55 +00:00
Chris Lattner
5b3224fe7e Revert the previous patch which causes a mysterious regression in toast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:47:05 +00:00
Chris Lattner
2a00daac58 Implement small-arguments.ll:test3 by teaching the DAG optimizer that 
the results of calls to functions returning small values are properly
sign/zero extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23198 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-01 23:44:32 +00:00
Chris Lattner
f76053269e Move FCTIWZ handling out of the instruction selectors and into legalization, 
getting them out of the business of making stack slots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23180 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-31 21:09:52 +00:00
Chris Lattner
bc11c3482c Move SHL,SHR i64 -> legalizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23178 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-31 20:23:54 +00:00
Chris Lattner
eb9b62e35e lower sra_parts on the dag, implementing it for the dag isel, and exposing 
the ops to dag optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23176 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-31 19:09:57 +00:00
Nate Begeman
49296f1f48 Enable generation of AssertSext and AssertZext in the PPC backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23168 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-31 01:58:39 +00:00
Chris Lattner
6de08f4377 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23140 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-30 00:45:18 +00:00
Chris Lattner
915fb302b1 Fix some really strange indentation that xcode likes to use. 
no xcode, this is not right:

   if (!foo) break;
     X;


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23138 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-30 00:19:00 +00:00
Chris Lattner
8a2d3ca7df implement SELECT_CC fully for the DAG->DAG isel! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23101 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:23:58 +00:00
Chris Lattner
0bbea95433 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23091 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:25:03 +00:00
Chris Lattner
0b1e4e508b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23083 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:36:52 +00:00
Chris Lattner
e4bc9ea0a5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:52:45 +00:00
Nate Begeman
c8e27db5c5 Remove option to make SetCC illegal on PowerPC after long discussion with 
Chris.  This will be accomplished through correctly modeling CR's and
subregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23056 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:01:10 +00:00
Nate Begeman
8ca5693c51 Ack, typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22981 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-23 05:45:10 +00:00
Nate Begeman
a50d53e5ef Add an option to make SetCC illegal as a beta option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22979 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-23 05:42:36 +00:00
Jim Laskey
ad23c9d4f2 Make UINT_TO_FP and SINT_TO_FP use generic expansion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22815 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 00:40:22 +00:00
Chris Lattner
a8cd01524f updates for changes in nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22808 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 21:58:15 +00:00
Nate Begeman
7cbd525ba8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 19:49:35 +00:00
Chris Lattner
7c5a3d390a Pull the LLVM -> DAG lowering code out of the pattern selector so that it 
can be shared with the DAG->DAG selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22799 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 17:14:42 +00:00