Chris Lattner
801d5f56bb
simplify the add/sub_parts code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23065 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 23:19:58 +00:00
Chris Lattner
047b952e29
Finish implementing SDIV/UDIV by copying over the majik constant code from
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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
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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
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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
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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
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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
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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
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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
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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
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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:
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_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
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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
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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
a64d4cddf5
add an enum value
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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
Chris Lattner
34e17052a7
Implement support for taking the address of constant pool indices, which
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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
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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
2fe76e58eb
Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero
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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
Chris Lattner
e28e40a273
Fully implement frame index, so that we can pass the address of alloca's
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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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
86fac6b00a
Remove some dead cases.
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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
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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
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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
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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
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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
53249865ec
Transform floor((double)FLT) -> (double)floorf(FLT), implementing
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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
ab466d769a
floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls
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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
1d6373c1af
teach selection dag mask tracking about the fact that select_cc operates like
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select. Also teach it that the bit count instructions can only set the low bits
of the result, depending on the size of the input.
This allows us to compile this:
int %eq0(int %a) {
%tmp.1 = seteq int %a, 0 ; <bool> [#uses=1]
%tmp.2 = cast bool %tmp.1 to int ; <int> [#uses=1]
ret int %tmp.2
}
To this:
_eq0:
cntlzw r2, r3
srwi r3, r2, 5
blr
instead of this:
_eq0:
cntlzw r2, r3
rlwinm r3, r2, 27, 31, 31
blr
when setcc is marked illegal on ppc (which restores parity to non-illegal
setcc). Thanks to Nate for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23013 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:46:55 +00:00
Chris Lattner
c9c60f6429
Start using isOperationLegal and isTypeLegal to simplify the code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23012 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:35:28 +00:00
Chris Lattner
9ed62c16f2
Adjust to new interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23010 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:34:12 +00:00
Reid Spencer
0a262ba7c3
For PR616:
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These patches make threading optional in LLVM. The configuration scripts are now
modified to accept a --disable-threads switch. If this is used, the Mutex class
will be implemented with all functions as no-op. Furthermore, linking against
libpthread will not be done. Finally, the ParallelJIT example needs libpthread
so its makefile was changed to always add -lpthread to the link line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23003 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 10:07:20 +00:00
Nate Begeman
6ef4949a0b
Whoops, fix a thinko. All cases except SETNE are now handled by the
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target independent code in SelectionDAG.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23002 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 05:06:48 +00:00
Nate Begeman
c6b0717a6c
Remove unused statistic
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Prefer 'neg X' to 'subfic 0, X' since neg does not set XER[CA]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23001 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 05:03:20 +00:00
Nate Begeman
4b46fc094d
Add the "ppc specific" setcc-equivalent select_cc cases
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Prefer 'neg X' to 'subfic 0, X' since it does not set XER[CA]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23000 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 04:59:21 +00:00
Nate Begeman
cebd433d8d
Teach SelectionDAG how to simplify a few more setcc-equivalent select_cc
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nodes so that backends don't have to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22999 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 04:57:57 +00:00
Chris Lattner
a2590c5b3e
Add callseq_begin/end support
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Call stil not supported yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22998 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:47:15 +00:00
Chris Lattner
82cfa5d616
Make -view-isel-dags show the dag before instruction selecting, in case
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the target isel crashes due to unimplemented features like calls :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22997 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:34:29 +00:00
Nate Begeman
0750a40a4f
Fix optimization of select_cc seteq X, 0, 1, 0 -> srl (ctlz X), log2 X size
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22995 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:21:28 +00:00
Chris Lattner
657b4d1ac6
Implement LiveVariables.h change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22994 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:09:33 +00:00
Chris Lattner
44b94c2185
adjust to new live variables interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22992 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 23:42:17 +00:00
Chris Lattner
d177579860
Adjust to new livevars interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22991 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 23:41:14 +00:00