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Author SHA1 Message Date
Jim Laskey
2602922735 Tweak of multiple occurance paragraph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:01:25 +00:00
Jim Laskey
1d8f626f66 Documentation updated to include upcoming support for bit vector support 
(flags.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23063 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:52:43 +00:00
Chris Lattner
047b952e29 Finish implementing SDIV/UDIV by copying over the majik constant code from 
ISelPattern


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23062 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:04:30 +00:00
Chris Lattner
c70b4afce2 Simplify some code. It's not clear why the UDIV expanded sequence 
doesn't work for large uint constants, but we'll keep the current behavior


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23061 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:03:50 +00:00
Chris Lattner
957fcfbd89 Implement setcc correctly for G5 and non-G5 systems 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23060 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 21:39:42 +00:00
Chris Lattner
64906a06b3 implement setcc on the G5. We're still missing the non-g5 specific bits, but 
they will come later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23059 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:08:18 +00:00
Nate Begeman
1999b4b974 New fold for SELECT_CC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23058 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:04:38 +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
Chris Lattner
43247a157b Don't auto-cse nodes that return flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23055 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 19:12:10 +00:00
Chris Lattner
8064e8fbf4 add printer support for flag operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23054 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:59:23 +00:00
Chris Lattner
9d338cf3a3 simplify the code a bit using isOperationLegal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23053 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:54:58 +00:00
Chris Lattner
8784a23075 Add support for sdiv by 2^k and -2^k. Producing code like: 
_test:
        srawi r2, r3, 2
        addze r3, r2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23052 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:50:06 +00:00
Chris Lattner
ee84f11577 fit in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:49:31 +00:00
Chris Lattner
376d54f9b6 Add support for flag operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23050 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:48:54 +00:00
Chris Lattner
3cd82619a8 add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23049 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:24:09 +00:00
Chris Lattner
a64d4cddf5 add an enum value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23048 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:07:09 +00:00
Jim Laskey
45a8036df0 Remove Support/Search.h entry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23047 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 16:44:13 +00:00
Jim Laskey
6600fa2d17 Recommended to use std::algorithms instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 16:21:56 +00:00
Jim Laskey
2d48b13eef Added Support/Search.h to project. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23045 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 13:42:04 +00:00
Jim Laskey
ab6c0a923f Added support for generic linear/binary search. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 13:32:25 +00:00
Chris Lattner
4e27d3a10c Fix a problem Duraid noticed, where we weren't removing values from the kills 
list when doing two-address and phi node lowering during register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23043 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:45:31 +00:00
Chris Lattner
34e17052a7 Implement support for taking the address of constant pool indices, which 
is used by the int -> FP code among other things.  This gets
2005-05-12-Int64ToFP past that failure, to dying on lack of support for add_parts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23042 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:04:11 +00:00
Chris Lattner
4025a9c2cc ADd support for TargetConstantPool nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23041 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:03:06 +00:00
Chris Lattner
aaaaf79d4a Add support for TargetConstantPool node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23040 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:02:41 +00:00
Reid Spencer
ca739c685b For PR614: 
Move the implementation of the fix from Makefile.rules to Makefile. This
ensures that it is only checked on a top-level rebuild, and not in every
single subdirectory. This removes some annoying messages from the build and
numerous executions of config.status if the .in file changes but not
substantively enough to cause the .h file to be modified by config.status.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23039 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 04:59:49 +00:00
Chris Lattner
2fe76e58eb Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 04:47:18 +00:00
Reid Spencer
6f5f8b380a Don't attempt to update LLVM configured header files from a build in a 
project. Thanks to Chris for pointing out this deficiency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23037 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 04:44:18 +00:00
Chris Lattner
e28e40a273 Fully implement frame index, so that we can pass the address of alloca's 
around to functions and stuff


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23036 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:45:43 +00:00
Chris Lattner
afb2dd43de add a new TargetFrameIndex node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23035 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:43:01 +00:00
Chris Lattner
89532c7db0 implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23034 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:29:58 +00:00
Chris Lattner
fdf8366ecc LFS/STFS load and store FP values, not integer ones. This change allows us 
to codegen this: float foo() { return 1.245; }

into this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs f1, lo16(.CPI_foo_0)(r2)
        blr

instead of this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs r2, lo16(.CPI_foo_0)(r2)   <-- ouch
        or f1, r2, r2                  <-- ouch
        blr

with the dag isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23033 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:26:22 +00:00
Chris Lattner
ed7956bfe4 Fix a broken assertion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23032 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:19:12 +00:00
Chris Lattner
7cad4f2089 Fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23031 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:05:15 +00:00
Chris Lattner
4a20997057 fix a warning in optimized build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23030 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:03:21 +00:00
Chris Lattner
e0a7f83049 Fix some warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23029 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 00:00:26 +00:00
Chris Lattner
2b54400f08 Split IMPLICIT_DEF into IMPLICIT_DEF_GPR and IMPLICIT_DEF_FP, so that the 
instructions take a consistent reg class.  Implement ISD::UNDEF in the dag->dag
selector to generate this, fixing UnitTests/2003-07-06-IntOverflow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23028 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 23:08:16 +00:00
Chris Lattner
7651fa4a7e add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23027 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 23:00:29 +00:00
Chris Lattner
fb0c964364 implement support for calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23026 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 22:45:17 +00:00
Chris Lattner
7b2880c4cd Add ReplaceAllUsesWith that can take a vector of replacement values. 
Add some foldings to hopefully help the illegal setcc issue, and move some code around.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23025 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 22:44:39 +00:00
Chris Lattner
420089c47c add two new methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23024 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 22:43:53 +00:00
Chris Lattner
86fac6b00a Remove some dead cases. 
Emit the indcall sequence as:

mtctr inreg
mr R12, inreg
btctr

If inreg and R12 aren't coallesced, this reduces the odds of having the mtctr
and btctr in the same dispatch group.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 22:21:47 +00:00
Chris Lattner
14b392af1d Add support for external symbols, and support for variable arity instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23022 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 22:02:41 +00:00
Chris Lattner
e39db07713 Fix pasto that prevented VT ndoes from showing up in -view-isel-dags correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23021 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 18:30:00 +00:00
Chris Lattner
a3c4454c5f add an idea 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23020 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 18:15:24 +00:00
Chris Lattner
ac83b0301e Fix Regression/Transforms/Reassociate/2005-08-24-Crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23019 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 17:55:32 +00:00
Chris Lattner
fa48be79ae new testcase that crashes -reassociate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23018 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 17:54:56 +00:00
Chris Lattner
53249865ec Transform floor((double)FLT) -> (double)floorf(FLT), implementing 
Regression/Transforms/SimplifyLibCalls/floor.ll.  This triggers 19 times in
177.mesa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23017 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 17:22:17 +00:00
Chris Lattner
890226dd34 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23016 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 17:20:30 +00:00
Chris Lattner
ab466d769a floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls 
in mesa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23015 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 16:58:56 +00:00
Chris Lattner
135a0428a8 Make sure this doesn't break when we're improving the isels 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23014 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 16:48:49 +00:00