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19882 Commits

Author SHA1 Message Date
Nate Begeman 33840c3268 New fold for SELECT_CC 
llvm-svn: 23058
 2005-08-25 20:04:38 +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
Chris Lattner f9c19157df Don't auto-cse nodes that return flags 
llvm-svn: 23055
 2005-08-25 19:12:10 +00:00
Chris Lattner 12756be53b add printer support for flag operands 
llvm-svn: 23054
 2005-08-25 17:59:23 +00:00
Chris Lattner 9d28a56d55 simplify the code a bit using isOperationLegal 
llvm-svn: 23053
 2005-08-25 17:54:58 +00:00
Chris Lattner dc66457022 Add support for sdiv by 2^k and -2^k. Producing code like: 
_test:
        srawi r2, r3, 2
        addze r3, r2
        blr

llvm-svn: 23052
 2005-08-25 17:50:06 +00:00
Chris Lattner 4bd2aab6c1 fit in 80 cols 
llvm-svn: 23051
 2005-08-25 17:49:31 +00:00
Chris Lattner 8a93f64efa Add support for flag operands 
llvm-svn: 23050
 2005-08-25 17:48:54 +00:00
Chris Lattner 5ac0805b5e add a method 
llvm-svn: 23049
 2005-08-25 17:24:09 +00:00
Chris Lattner d24ad52efa add an enum value 
llvm-svn: 23048
 2005-08-25 17:07:09 +00:00
Jim Laskey 7da6420a23 Remove Support/Search.h entry 
llvm-svn: 23047
 2005-08-25 16:44:13 +00:00
Jim Laskey 9fda3a799c Recommended to use std::algorithms instead. 
llvm-svn: 23046
 2005-08-25 16:21:56 +00:00
Jim Laskey 807c3460d7 Added Support/Search.h to project. 
llvm-svn: 23045
 2005-08-25 13:42:04 +00:00
Jim Laskey aabf3e2bf1 Added support for generic linear/binary search. 
llvm-svn: 23044
 2005-08-25 13:32:25 +00:00
Chris Lattner 1db9de30ea 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.

llvm-svn: 23043
 2005-08-25 05:45:31 +00:00
Chris Lattner 25db699671 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

llvm-svn: 23042
 2005-08-25 05:04:11 +00:00
Chris Lattner 407c6415b4 ADd support for TargetConstantPool nodes 
llvm-svn: 23041
 2005-08-25 05:03:06 +00:00
Chris Lattner 79b8dad7ea Add support for TargetConstantPool node 
llvm-svn: 23040
 2005-08-25 05:02:41 +00:00
Reid Spencer 53846bcdb6 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.

llvm-svn: 23039
 2005-08-25 04:59:49 +00:00
Chris Lattner 666512c832 Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero 
llvm-svn: 23038
 2005-08-25 04:47:18 +00:00
Reid Spencer 83bde55c64 Don't attempt to update LLVM configured header files from a build in a 
project. Thanks to Chris for pointing out this deficiency.

llvm-svn: 23037
 2005-08-25 04:44:18 +00:00
Chris Lattner e4c338d0d8 Fully implement frame index, so that we can pass the address of alloca's 
around to functions and stuff

llvm-svn: 23036
 2005-08-25 00:45:43 +00:00
Chris Lattner bbe0e7df2c add a new TargetFrameIndex node 
llvm-svn: 23035
 2005-08-25 00:43:01 +00:00
Chris Lattner 66a6a13225 implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c 
llvm-svn: 23034
 2005-08-25 00:29:58 +00:00
Chris Lattner 4ae278a760 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.

llvm-svn: 23033
 2005-08-25 00:26:22 +00:00
Chris Lattner 794eb6684d Fix a broken assertion 
llvm-svn: 23032
 2005-08-25 00:19:12 +00:00
Chris Lattner c146940f0d Fix a warning 
llvm-svn: 23031
 2005-08-25 00:05:15 +00:00
Chris Lattner daae1e10f7 fix a warning in optimized build 
llvm-svn: 23030
 2005-08-25 00:03:21 +00:00
Chris Lattner 751c6c3944 Fix some warnings 
llvm-svn: 23029
 2005-08-25 00:00:26 +00:00
Chris Lattner a3fbdae515 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.

llvm-svn: 23028
 2005-08-24 23:08:16 +00:00
Chris Lattner 45e1ce4e28 add a method 
llvm-svn: 23027
 2005-08-24 23:00:29 +00:00
Chris Lattner d83cd354bd implement support for calls 
llvm-svn: 23026
 2005-08-24 22:45:17 +00:00
Chris Lattner d7ee4d8671 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.

llvm-svn: 23025
 2005-08-24 22:44:39 +00:00
Chris Lattner 9130192229 add two new methods 
llvm-svn: 23024
 2005-08-24 22:43:53 +00:00
Chris Lattner 1fc2a7f006 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.  :)

llvm-svn: 23023
 2005-08-24 22:21:47 +00:00
Chris Lattner ad9565dfbe Add support for external symbols, and support for variable arity instructions 
llvm-svn: 23022
 2005-08-24 22:02:41 +00:00
Chris Lattner bb8cc0acb2 Fix pasto that prevented VT ndoes from showing up in -view-isel-dags correctly 
llvm-svn: 23021
 2005-08-24 18:30:00 +00:00
Chris Lattner 1e98a330f2 add an idea 
llvm-svn: 23020
 2005-08-24 18:15:24 +00:00
Chris Lattner 8ca5b2a6d2 Fix Regression/Transforms/Reassociate/2005-08-24-Crash.ll 
llvm-svn: 23019
 2005-08-24 17:55:32 +00:00
Chris Lattner 347f5cb985 new testcase that crashes -reassociate 
llvm-svn: 23018
 2005-08-24 17:54:56 +00:00
Chris Lattner 4201cd1bbc Transform floor((double)FLT) -> (double)floorf(FLT), implementing 
Regression/Transforms/SimplifyLibCalls/floor.ll.  This triggers 19 times in
177.mesa.

llvm-svn: 23017
 2005-08-24 17:22:17 +00:00
Chris Lattner 16a382df29 new testcase 
llvm-svn: 23016
 2005-08-24 17:20:30 +00:00
Chris Lattner 898e50ecb3 floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls 
in mesa.

llvm-svn: 23015
 2005-08-24 16:58:56 +00:00
Chris Lattner 03e64f6c1e Make sure this doesn't break when we're improving the isels 
llvm-svn: 23014
 2005-08-24 16:48:49 +00:00
Chris Lattner 86b1658d58 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.

llvm-svn: 23013
 2005-08-24 16:46:55 +00:00
Chris Lattner f12eb4d676 Start using isOperationLegal and isTypeLegal to simplify the code 
llvm-svn: 23012
 2005-08-24 16:35:28 +00:00
Chris Lattner 5ff1bf4f0a rename hasNativeSupportFor* -> is(Operation|Type)Legal. 
llvm-svn: 23011
 2005-08-24 16:34:59 +00:00
Chris Lattner ade525491f Adjust to new interface 
llvm-svn: 23010
 2005-08-24 16:34:12 +00:00
Misha Brukman 28a0d918c1 Wrap long lines 
llvm-svn: 23009
 2005-08-24 14:03:07 +00:00
Reid Spencer 87f95722b2 Remove some tabs. 
Wrap a line.

llvm-svn: 23008
 2005-08-24 10:57:30 +00:00