Nate Begeman [Thu, 25 Aug 2005 20:04:38 +0000 (20:04 +0000)]
New fold for SELECT_CC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23058
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 25 Aug 2005 20:01:10 +0000 (20:01 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 19:12:10 +0000 (19:12 +0000)]
Don't auto-cse nodes that return flags
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23055
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:59:23 +0000 (17:59 +0000)]
add printer support for flag operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23054
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:54:58 +0000 (17:54 +0000)]
simplify the code a bit using isOperationLegal
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23053
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:50:06 +0000 (17:50 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 17:49:31 +0000 (17:49 +0000)]
fit in 80 cols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23051
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:48:54 +0000 (17:48 +0000)]
Add support for flag operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23050
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:24:09 +0000 (17:24 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23049
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 17:07:09 +0000 (17:07 +0000)]
add an enum value
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23048
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 25 Aug 2005 16:44:13 +0000 (16:44 +0000)]
Remove Support/Search.h entry
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23047
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 25 Aug 2005 16:21:56 +0000 (16:21 +0000)]
Recommended to use std::algorithms instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23046
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 25 Aug 2005 13:42:04 +0000 (13:42 +0000)]
Added Support/Search.h to project.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23045
91177308-0d34-0410-b5e6-
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Jim Laskey [Thu, 25 Aug 2005 13:32:25 +0000 (13:32 +0000)]
Added support for generic linear/binary search.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23044
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 05:45:31 +0000 (05:45 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 05:04:11 +0000 (05:04 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 05:03:06 +0000 (05:03 +0000)]
ADd support for TargetConstantPool nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23041
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 05:02:41 +0000 (05:02 +0000)]
Add support for TargetConstantPool node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23040
91177308-0d34-0410-b5e6-
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Reid Spencer [Thu, 25 Aug 2005 04:59:49 +0000 (04:59 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 04:47:18 +0000 (04:47 +0000)]
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-
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Reid Spencer [Thu, 25 Aug 2005 04:44:18 +0000 (04:44 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 00:45:43 +0000 (00:45 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 00:43:01 +0000 (00:43 +0000)]
add a new TargetFrameIndex node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23035
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 00:29:58 +0000 (00:29 +0000)]
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-
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Chris Lattner [Thu, 25 Aug 2005 00:26:22 +0000 (00:26 +0000)]
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
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Chris Lattner [Thu, 25 Aug 2005 00:19:12 +0000 (00:19 +0000)]
Fix a broken assertion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23032
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 00:05:15 +0000 (00:05 +0000)]
Fix a warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23031
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 00:03:21 +0000 (00:03 +0000)]
fix a warning in optimized build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23030
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 25 Aug 2005 00:00:26 +0000 (00:00 +0000)]
Fix some warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23029
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 23:08:16 +0000 (23:08 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 23:00:29 +0000 (23:00 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23027
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 22:45:17 +0000 (22:45 +0000)]
implement support for calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23026
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 22:44:39 +0000 (22:44 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 22:43:53 +0000 (22:43 +0000)]
add two new methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23024
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 22:21:47 +0000 (22:21 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 22:02:41 +0000 (22:02 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 18:30:00 +0000 (18:30 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 18:15:24 +0000 (18:15 +0000)]
add an idea
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23020
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 17:55:32 +0000 (17:55 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 17:54:56 +0000 (17:54 +0000)]
new testcase that crashes -reassociate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23018
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 17:22:17 +0000 (17:22 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 17:20:30 +0000 (17:20 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23016
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 16:58:56 +0000 (16:58 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 16:48:49 +0000 (16:48 +0000)]
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-
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Chris Lattner [Wed, 24 Aug 2005 16:46:55 +0000 (16:46 +0000)]
teach selection dag mask tracking about the fact that select_cc operates like
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-
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Chris Lattner [Wed, 24 Aug 2005 16:35:28 +0000 (16:35 +0000)]
Start using isOperationLegal and isTypeLegal to simplify the code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23012
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 16:34:59 +0000 (16:34 +0000)]
rename hasNativeSupportFor* -> is(Operation|Type)Legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23011
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 16:34:12 +0000 (16:34 +0000)]
Adjust to new interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23010
91177308-0d34-0410-b5e6-
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Misha Brukman [Wed, 24 Aug 2005 14:03:07 +0000 (14:03 +0000)]
Wrap long lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23009
91177308-0d34-0410-b5e6-
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Reid Spencer [Wed, 24 Aug 2005 10:57:30 +0000 (10:57 +0000)]
Remove some tabs.
Wrap a line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23008
91177308-0d34-0410-b5e6-
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Reid Spencer [Wed, 24 Aug 2005 10:55:07 +0000 (10:55 +0000)]
Whoops, don't use PROJ variables, these are all LLVM headers. This allows
projects to compile properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23007
91177308-0d34-0410-b5e6-
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Reid Spencer [Wed, 24 Aug 2005 10:43:10 +0000 (10:43 +0000)]
For PR619:
Make any header files that are automatically generated be preconditions of
the compilation. This ensures that if a *.h.in file is changed then its
corresponding *.h file gets updated on the next rebuild. Note that this can
lead to confusing (but correct) results if the *.h.in file changed
unsubstantially so that autoheader doesn't update the *.h file. In that case,
manually touch the *.h file in question to restore order. Moral of the story,
if you're going to "touch" a *.in file then modify it substantially.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23006
91177308-0d34-0410-b5e6-
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Reid Spencer [Wed, 24 Aug 2005 10:07:20 +0000 (10:07 +0000)]
For PR616:
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-
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Nate Begeman [Wed, 24 Aug 2005 05:06:48 +0000 (05:06 +0000)]
Whoops, fix a thinko. All cases except SETNE are now handled by the
target independent code in SelectionDAG.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23002
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 24 Aug 2005 05:03:20 +0000 (05:03 +0000)]
Remove unused statistic
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-
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Nate Begeman [Wed, 24 Aug 2005 04:59:21 +0000 (04:59 +0000)]
Add the "ppc specific" setcc-equivalent select_cc cases
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-
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Nate Begeman [Wed, 24 Aug 2005 04:57:57 +0000 (04:57 +0000)]
Teach SelectionDAG how to simplify a few more setcc-equivalent select_cc
nodes so that backends don't have to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22999
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 00:47:15 +0000 (00:47 +0000)]
Add callseq_begin/end support
Call stil not supported yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22998
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 00:34:29 +0000 (00:34 +0000)]
Make -view-isel-dags show the dag before instruction selecting, in case
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-
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Nate Begeman [Wed, 24 Aug 2005 00:21:28 +0000 (00:21 +0000)]
Fix optimization of select_cc seteq X, 0, 1, 0 -> srl (ctlz X), log2 X size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22995
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 00:09:33 +0000 (00:09 +0000)]
Implement LiveVariables.h change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22994
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 24 Aug 2005 00:09:02 +0000 (00:09 +0000)]
Keep the killed/dead sets sorted, so that "KillsRegister" can do a quick
binary search to test for membership. This speeds up LLC a bit more on KC++,
e.g. on itanium from 16.6974s to 14.8272s, PPC from 11.4926s to 10.7089s and
X86 from 10.8128s to 9.7943s, with no difference in generated code (like all
of the RA patches).
With these changes, isel is the slowest pass for PPC/X86, but linscan+live
intervals is still > 50% of the compile time for itanium. More work could
be done, but this is the last for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22993
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 23:42:17 +0000 (23:42 +0000)]
adjust to new live variables interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22992
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 23:41:14 +0000 (23:41 +0000)]
Adjust to new livevars interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22991
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 23:40:41 +0000 (23:40 +0000)]
Change live variables from using multimaps to using maps of vectors and
rearrange some of the accessors to be more efficient.
This makes it much more efficient to iterate over all of the things with the
same value. This speeds up liveintervals analysis from 8.63s to 3.79s with
a release build of llc on kc++ with -march=ia64. This also speeds up live
var from 1.66s -> 0.87s as well, reducing total llc time from 20.1s->15.2s.
This also speeds up other targets slightly, e.g. llc time on X86 from 16.84
-> 16.45s, and PPC from 17.64->17.03s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22990
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 22:51:41 +0000 (22:51 +0000)]
Simplify this code by using higher-level LiveVariables methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22989
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 22:49:55 +0000 (22:49 +0000)]
Simplify this code by using LiveVariables::KillsRegister
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22988
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 22:43:24 +0000 (22:43 +0000)]
Add RegisterDefIsDead to correspond to KillsRegister, mark both const
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22987
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 22:27:31 +0000 (22:27 +0000)]
Keep track of which registers are related to which other registers.
Use this information to avoid doing expensive interval intersections for
registers that could not possible be interesting. This speeds up linscan
on ia64 compiling kc++ in release mode from taking 7.82s to 4.8s(!), total
itanium llc time on this program is 27.3s now. This marginally speeds up
PPC and X86, but they appear to be limited by other parts of linscan, not
this code.
On this program, on itanium, live intervals now takes 41% of llc time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22986
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Aug 2005 21:45:31 +0000 (21:45 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22985
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Chris Lattner [Tue, 23 Aug 2005 20:22:50 +0000 (20:22 +0000)]
Fix PR618 and Regression/CodeGen/CBackend/2005-08-23-Fmod.ll by not emitting
x%y for 'rem' on fp values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22984
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Chris Lattner [Tue, 23 Aug 2005 20:22:07 +0000 (20:22 +0000)]
New testcase for PR618
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22983
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Chris Lattner [Tue, 23 Aug 2005 06:27:59 +0000 (06:27 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22982
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Nate Begeman [Tue, 23 Aug 2005 05:45:10 +0000 (05:45 +0000)]
Ack, typo
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Nate Begeman [Tue, 23 Aug 2005 05:42:36 +0000 (05:42 +0000)]
Add an option to make SetCC illegal as a beta option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22979
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Nate Begeman [Tue, 23 Aug 2005 05:41:12 +0000 (05:41 +0000)]
Teach the SelectionDAG how to transform select_cc eq, X, 0, 1, 0 into
either seteq X, 0 or srl (ctlz X), size(X-1), depending on what's legal
for the target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22978
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Nate Begeman [Tue, 23 Aug 2005 04:29:48 +0000 (04:29 +0000)]
Teach Legalize how to turn setcc into select_cc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22977
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Nate Begeman [Tue, 23 Aug 2005 01:16:46 +0000 (01:16 +0000)]
Remove some instructions we no longer generate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22976
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Chris Lattner [Mon, 22 Aug 2005 22:32:13 +0000 (22:32 +0000)]
Remove some regs that are not used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22975
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Chris Lattner [Mon, 22 Aug 2005 22:00:02 +0000 (22:00 +0000)]
Nate noticed that 30% of the malloc/frees in llc come from calls to LowercaseString
in the asmprinter. This changes the .td files to use lower case register names,
avoiding the need to do this call. This speeds up the asmprinter from 1.52s
to 1.06s on kc++ in a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22974
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Chris Lattner [Mon, 22 Aug 2005 21:33:11 +0000 (21:33 +0000)]
Fix a crash I introduced into the IA64 backend with my copyfromreg change.
It used to crash on any function that took float arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22973
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Chris Lattner [Mon, 22 Aug 2005 20:59:30 +0000 (20:59 +0000)]
Try to avoid scanning the fixed list. On architectures with a non-stupid
number of regs (e.g. most riscs), many functions won't need to use callee
clobbered registers. Do a speculative check to see if we can get a free
register without processing the fixed list (which has all of these). This
saves a lot of time on machines with lots of callee clobbered regs (e.g.
ppc and itanium, also x86).
This reduces ppc llc compile time from 184s -> 172s on kc++. This is probably
worth FAR FAR more on itanium though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22972
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Chris Lattner [Mon, 22 Aug 2005 20:20:42 +0000 (20:20 +0000)]
Move some code in the register assignment case that only needs to happen if
we spill out of the fast path. The scan of active_ and the calls to
updateSpillWeights don't need to happen unless a spill occurs. This reduces
debug llc time of kc++ with ppc from 187.3s to 183.2s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22971
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Chris Lattner [Mon, 22 Aug 2005 18:28:09 +0000 (18:28 +0000)]
Add a pass name for -time-passes output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22970
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Chris Lattner [Mon, 22 Aug 2005 17:28:31 +0000 (17:28 +0000)]
Fix a problem where constant expr shifts would not have their shift amount
promoted to the right type. This fixes: IA64/2005-08-22-LegalizerCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22969
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Chris Lattner [Mon, 22 Aug 2005 17:16:49 +0000 (17:16 +0000)]
Testcase for a crash in the legalizer on ia64. This is reduced from kc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22968
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Chris Lattner [Mon, 22 Aug 2005 17:15:41 +0000 (17:15 +0000)]
Add a long-overdue itanium regression test dir: hint hint Duraid :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22967
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Chris Lattner [Mon, 22 Aug 2005 16:55:22 +0000 (16:55 +0000)]
Speed up this loop a bit, based on some observations that Nate made, and
add some comments. This loop really needs to be reevaluated!
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Chris Lattner [Mon, 22 Aug 2005 16:24:25 +0000 (16:24 +0000)]
Revert my patch which changed the code to not work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22965
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Chris Lattner [Mon, 22 Aug 2005 16:11:46 +0000 (16:11 +0000)]
Make the example a bit easier to understand, suggested by Jim.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22964
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Chris Lattner [Mon, 22 Aug 2005 01:27:59 +0000 (01:27 +0000)]
Implement stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22963
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Chris Lattner [Mon, 22 Aug 2005 01:04:32 +0000 (01:04 +0000)]
Add a fast-path for register values. Add support for constant pool entries,
allowing us to compile this:
float %test2(float* %P) {
%Q = load float* %P
%R = add float %Q, 10.1
ret float %R
}
to this:
_test2:
lfs r2, 0(r3)
lis r3, ha16(.CPI_test2_0)
lfs r3, lo16(.CPI_test2_0)(r3)
fadds f1, r2, r3
blr
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Chris Lattner [Mon, 22 Aug 2005 00:59:14 +0000 (00:59 +0000)]
Fix compilation of:
float %test2(float* %P) {
%Q = load float* %P
%R = add float %Q, %Q
ret float %R
}
By returning the right result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22961
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Chris Lattner [Mon, 22 Aug 2005 00:47:28 +0000 (00:47 +0000)]
Make sure expressions only have one use before emitting them into a place that is conditionally executed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22960
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Chris Lattner [Sun, 21 Aug 2005 22:31:09 +0000 (22:31 +0000)]
Implement most of load support. There is still a bug though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22959
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Chris Lattner [Sun, 21 Aug 2005 22:30:42 +0000 (22:30 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22958
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Chris Lattner [Sun, 21 Aug 2005 22:30:30 +0000 (22:30 +0000)]
add anew method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22957
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Chris Lattner [Sun, 21 Aug 2005 19:56:04 +0000 (19:56 +0000)]
Add support for frame index nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22956
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Chris Lattner [Sun, 21 Aug 2005 19:48:59 +0000 (19:48 +0000)]
add a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22955
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Chris Lattner [Sun, 21 Aug 2005 19:48:53 +0000 (19:48 +0000)]
ADd a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22954
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