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c5e6c649b5
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605 Commits

Author SHA1 Message Date
Chris Lattner
c5e6c649b5 This is a bugfix for SelectNodeTo. In certain situations, we could be 
selecting a node and use a mix of getTargetNode() and SelectNodeTo.  Because
SelectNodeTo didn't check the CSE maps for a preexisting node and didn't insert
its result into the CSE maps, we would sometimes miss a CSE opportunity.

This is extremely rare, but worth fixing for completeness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24565 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-01 18:00:57 +00:00
Nate Begeman
6510b22cec Support multiple ValueTypes per RegisterClass, needed for upcoming vector 
work.  This change has no effect on generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24563 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-01 04:51:06 +00:00
Chris Lattner
eb19e40efb Make SelectNodeTo return N 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24548 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 22:45:14 +00:00
Chris Lattner
c85a9f37e9 CALLSEQ_START/END nodes don't get memoized, do not add them in when 
replaceAllUses'ing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24539 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 18:20:52 +00:00
Andrew Lenharth
ae35575957 At long last, you can say that f32 isn't supported for setcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24537 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 17:12:26 +00:00
Nate Begeman
f43a3ca26d First chunk of actually generating vector code for packed types. These 
changes allow us to generate the following code:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vaddfp v0, v0, v0
        stvx v0, r2, r3
        blr

for this llvm:

void %foo(<4 x float>* %a) {
entry:
        %tmp1 = load <4 x float>* %a
        %tmp2 = add <4 x float> %tmp1, %tmp1
        store <4 x float> %tmp2, <4 x float>* %a
        ret void
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24534 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 08:22:07 +00:00
Andrew Lenharth
5b5b8c2755 add support for custom lowering SINT_TO_FP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24531 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 06:43:03 +00:00
Reid Spencer
6ff7240a5c Fix a problem with llvm-ranlib that (on some platforms) caused the archive 
file to become corrupted due to interactions between mmap'd memory segments
and file descriptors closing. The problem is completely avoiding by using
a third temporary file.

Patch provided by Evan Jones


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24527 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 05:21:10 +00:00
Evan Cheng
14229bb636 Fixed a bug introduced by my last commit: TargetGlobalValues should key on 
GlobalValue * and index pair. Update getGlobalAddress() for symmetry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24524 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 02:49:21 +00:00
Evan Cheng
61ca74bc3a Added an index field to GlobalAddressSDNode so it can represent X+12, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24523 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-30 02:04:11 +00:00
Chris Lattner
36ce69195e Add support for a new STRING and LOCATION node for line number support, patch 
contributed by Daniel Berlin, with a few cleanups here and there by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24515 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-29 06:21:05 +00:00
Nate Begeman
6a648614e8 Add the majority of the vector machien value types we expect to support, 
and make a few changes to the legalization machinery to support more than
16 types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24511 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-29 05:45:29 +00:00
Nate Begeman
ab48be3772 Check in code to scalarize arbitrarily wide packed types for some simple 
vector operations (load, add, sub, mul).

This allows us to codegen:
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = add <4 x float> %tmp1, %tmp1
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

on ppc as:
_foo:
        lfs f0, 12(r3)
        lfs f1, 8(r3)
        lfs f2, 4(r3)
        lfs f3, 0(r3)
        fadds f0, f0, f0
        fadds f1, f1, f1
        fadds f2, f2, f2
        fadds f3, f3, f3
        stfs f0, 12(r3)
        stfs f1, 8(r3)
        stfs f2, 4(r3)
        stfs f3, 0(r3)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24484 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-22 18:16:00 +00:00
Nate Begeman
4ef3b817fe Rather than attempting to legalize 1 x float, make sure the SD ISel never 
generates it.  Make MVT::Vector expand-only, and remove the code in
Legalize that attempts to legalize it.

The plan for supporting N x Type is to continually epxand it in ExpandOp
until it gets down to 2 x Type, where it will be scalarized into a pair of
scalars.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24482 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-22 01:29:36 +00:00
Chris Lattner
308575be66 Legalize MERGE_VALUES, expand READCYCLECOUNTER correctly, so it doesn't 
break control dependence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24437 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 22:56:56 +00:00
Andrew Lenharth
f70e30b41d The first patch of X86 support for read cycle counter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24429 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 21:32:07 +00:00
Chris Lattner
6bf234c4a8 more progress towards bug 291 being finished. Patch by Owen Anderson, 
HAVE_GV case fixed up by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24428 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 03:45:52 +00:00
Chris Lattner
b67eb9131c Unbreak codegen of bools. This should fix the llc/jit/llc-beta failures 
from last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24427 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 18:40:42 +00:00
Chris Lattner
3aa2c74e19 Improve Selection DAG printer portability. Patch by Owen Anderson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 07:44:09 +00:00
Chris Lattner
44fa764355 Teach the graph viewer to handle register operands that are zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24421 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 06:58:46 +00:00
Chris Lattner
b89175feff Silence a bogus warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24420 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 05:51:46 +00:00
Chris Lattner
0fb094fd60 Add some method variants, patch by Evan Cheng 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24418 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 01:44:53 +00:00
Nate Begeman
5fbb5d2459 Teach LLVM how to scalarize packed types. Currently, this only works on 
packed types with an element count of 1, although more generic support is
coming.  This allows LLVM to turn the following code:

void %foo(<1 x float> * %a) {
entry:
  %tmp1 = load <1 x float> * %a;
  %tmp2 = add <1 x float> %tmp1, %tmp1
  store <1 x float> %tmp2, <1 x float> *%a
  ret void
}

Into:

_foo:
        lfs f0, 0(r3)
        fadds f0, f0, f0
        stfs f0, 0(r3)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24416 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-19 00:36:38 +00:00
Nate Begeman
e21ea61588 Split out the shift code from visitBinary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24412 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-18 07:42:56 +00:00
Chris Lattner
0c8fbe33a4 Allow targets to custom legalize leaf nodes like GlobalAddress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24387 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-17 06:41:44 +00:00
Chris Lattner
b9debbf54c Teach legalize about targetglobaladdress 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24385 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-17 05:52:24 +00:00
Chris Lattner
b1a5a5c4c0 when debugging lower dbg intrinsics to calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24377 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-16 07:22:30 +00:00
Jeff Cohen
06d9b4ab24 Fix operator precedence bug caught by VC++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24318 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-12 00:59:01 +00:00
Andrew Lenharth
8b91c77385 added a chain output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24306 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-11 22:48:54 +00:00
Andrew Lenharth
51b8d54922 continued readcyclecounter support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-11 16:47:30 +00:00
Chris Lattner
de202b3cda Switch the allnodes list from a vector of pointers to an ilist of nodes.This eliminates the vector, allows constant time removal of a node froma graph, and makes iteration over the all nodes list stable when adding 
nodes to the graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24263 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 23:47:37 +00:00
Chris Lattner
c9ea6fde30 Refactor intrinsic lowering stuff out of visitCall 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 19:44:01 +00:00
Chris Lattner
040c11c24e Handle the trivial (but common) two-op case more efficiently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24259 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 18:48:57 +00:00
Chris Lattner
6b2d69655a Fix CodeGen/X86/shift-folding.ll:test3 on X86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24256 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 16:50:40 +00:00
Chris Lattner
7436b57de3 Avoid creating a token factor node in trivially redundant cases. This 
eliminates almost one node per block in common cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 05:03:03 +00:00
Chris Lattner
7c0104b525 Handle GEP's a bit more intelligently. Fold constant indices early and 
turn power-of-two multiplies into shifts early to improve compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24253 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 04:45:33 +00:00
Chris Lattner
0d902a9c74 Allocate the right amount of memory for this vector up front. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 23:32:44 +00:00
Chris Lattner
a32551197a Change the ValueList array for each node to be shared instead of individuallyallocated. Further, in the common case where a node has a single value, justreference an element from a small array. This is a small compile-time win. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 23:30:28 +00:00
Chris Lattner
65113b2f86 Switch the operandlist/valuelist from being vectors to being just an array.This saves 12 bytes from SDNode, but doesn't speed things up substantially 
(our graphs apparently already fit within the cache on my g5).  In any case
this reduces memory usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 22:07:03 +00:00
Chris Lattner
4012eb2137 Explicitly initialize some instance vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 21:54:57 +00:00
Chris Lattner
f469cb6546 Clean up RemoveDeadNodes significantly, by eliminating the need for a temporary 
set and eliminating the need to iterate whenever something is removed (which
can be really slow in some cases).  Thx to Jim for pointing out something silly
I was getting stuck on. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 18:52:27 +00:00
Jim Laskey
26b91ebb63 Let's try ignoring resource utilization on the backward pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24231 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-07 19:08:53 +00:00
Nate Begeman
ae232e7a10 Add the necessary support to the ISel to allow targets to codegen the new 
alignment information appropriately.  Includes code for PowerPC to support
fixed-size allocas with alignment larger than the stack.  Support for
arbitrarily aligned dynamic allocas coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 09:00:38 +00:00
Jim Laskey
a5e5bff8b8 Fix logic bug in finding retry slot in tally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24188 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 00:01:25 +00:00
Jim Laskey
54f997d23f Fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24187 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 18:26:02 +00:00
Jim Laskey
7d090f3485 Scheduling now uses itinerary data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24180 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 04:05:35 +00:00
Nate Begeman
5dc7e861f8 Fix a crash that Andrew noticed, and add a pair of braces to unfconfuse 
XCode's indenting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24159 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 18:42:59 +00:00
Chris Lattner
7c22575e32 Fix a source of undefined behavior when dealing with 64-bit types. This 
may fix PR652.  Thanks to Andrew for tracking down the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24145 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 01:47:04 +00:00
Jim Laskey
5a608ddada 1. Embed and not inherit vector for NodeGroup. 
2. Iterate operands and not uses (performance.)

3. Some long pending comment changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24119 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 12:49:09 +00:00
Chris Lattner
bf209489ad Significantly simplify this code and make it more aggressive. Instead of having 
a special case hack for X86, make the hack more general: if an incoming argument
register is not used in any block other than the entry block, don't copy it to
a vreg.  This helps us compile code like this:

%struct.foo = type { int, int, [0 x ubyte] }
int %test(%struct.foo* %X) {
        %tmp1 = getelementptr %struct.foo* %X, int 0, uint 2, int 100
        %tmp = load ubyte* %tmp1                ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp to int          ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        lbz r3, 108(r3)
        blr

instead of:

_test:
        lbz r2, 108(r3)
        or r3, r2, r2
        blr

The (dead) copy emitted to copy r3 into a vreg for extra-block uses was
increasing the live range of r3 past the load, preventing the coallescing.

This implements CodeGen/PowerPC/reg-coallesce-simple.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24115 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 19:42:35 +00:00