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Author SHA1 Message Date
Chris Lattner
0fc9c26e7d remove now-dead code, the legalizer takes care of this for us 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25776 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:45:31 +00:00
Chris Lattner
44d9b9bb86 The FP stack doesn't support UNDEF, ask the legalizer to legalize it 
instead of lying and saying we have it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25775 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:44:22 +00:00
Chris Lattner
8ca05e0c30 Allow custom expansion of ConstantVec nodes. PPC will use this in the future. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25774 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:34:16 +00:00
Chris Lattner
ec4a0c7c6b Request expansion of ConstantVec nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25773 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:32:58 +00:00
Chris Lattner
3181a771ff Legalize ConstantFP into TargetConstantFP when the target allows. Implement 
custom expansion of ConstantFP nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25772 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:26:56 +00:00
Chris Lattner
a54aa94197 Targets all now request ConstantFP to be legalized into TargetConstantFP. 
'fpimm' in .td files is now TargetConstantFP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25771 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:26:08 +00:00
Chris Lattner
08a90229ae Update alpha to reflect recent constantfp legalize changes. It's not clear 
why all this code isn't autogenerated. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25770 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:25:22 +00:00
Chris Lattner
ac0d723825 Make ConstantFP legalize into TargetConstantFP like other leaf nodes do. Allow 
targets to register custom legalizers for ConstantFP in case there isn't a
fixed list of constants that can be generated.  On some architectures (ia64?)
all fp immediates are legal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25769 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:24:40 +00:00
Chris Lattner
2128a2f76c remove the getBR2Way_CC method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25768 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:01:13 +00:00
Chris Lattner
03d5e877fd eliminate uses of SelectionDAG::getBR2Way_CC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25767 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:00:45 +00:00
Andrew Lenharth
8e51773bb7 it is nice not to chop off bits for those blessed with lots of bits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25766 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 05:22:37 +00:00
Andrew Lenharth
2cba57cb09 make the casts actually cast to the variable type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25765 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 05:17:22 +00:00
Andrew Lenharth
5c6bdf71d4 start of the 64bit safety cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25764 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 05:07:04 +00:00
Chris Lattner
24e00a4ac1 Emit series of conditionals with &&, emitting stuff like this: 
if (N1.getOpcode() == ISD::LOAD &&
        N1.hasOneUse() &&
        !CodeGenMap.count(N1.getValue(0)) &&
        !CodeGenMap.count(N1.getValue(1))) {

instead of this:

    if (N1.getOpcode() == ISD::LOAD) {
      if (N1.hasOneUse()) {
        if (!CodeGenMap.count(N1.getValue(0))) {
          if (!CodeGenMap.count(N1.getValue(1))) {


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25763 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 04:41:05 +00:00
Chris Lattner
8bc7472a0c Factor matching code that is common between patterns. This works around 
GCC not jump-threading across this common code, and produces far nicer
output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25762 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 04:25:26 +00:00
Chris Lattner
c7e1852d63 cmovle != cmovlt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25761 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 03:47:30 +00:00
Jeff Cohen
b8643ac476 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25760 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 03:45:35 +00:00
Chris Lattner
2bd4dd7668 Split out code generation from analysis from emission 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25759 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 02:57:39 +00:00
Chris Lattner
355408bcb7 move some code around, no change in the generated code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25758 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 02:43:35 +00:00
Chris Lattner
67a202bc42 now that we have control over emission of the code, emit the code using nested 
"if" statements (indenting it appropriately, of course) instead of using goto's.

This inverts the logic for all of the if statements, which makes things simpler
to understand in addition to making the generated code easier to read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25757 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 20:43:52 +00:00
Chris Lattner
8a0604b523 Change PatternCodeEmitter to emit code into a buffer instead of emitting it 
directly to the output file.  This makes things simple because the code doesn't
have to worry about indentation or the case when there is no goto.  It also
allows us to indent the code better without touching everything :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25756 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 20:31:24 +00:00
Jeff Cohen
c4013d6772 Flesh out AMD family/models. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25755 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 20:30:18 +00:00
Jeff Cohen
216d281d0a Correctly determine CPU vendor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25754 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 19:48:34 +00:00
Reid Spencer
24200d63fd Make long warnings wrap and have less indent so other portions of the page 
are not skewed out of view.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25753 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 19:44:48 +00:00
Chris Lattner
488580c1ed Fit to 80 columns, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25752 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 19:06:51 +00:00
Jeff Cohen
a349640b7f Use union instead of reinterpret_cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:47:32 +00:00
Jeff Cohen
7617717496 Fix recognition of Intel CPUs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25750 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:38:20 +00:00
Chris Lattner
c2fad16155 Is64Bit reflects the capability of the chip, not an aspect of the target os 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25749 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:23:48 +00:00
Chris Lattner
dabbc98396 Fix a bunch of JIT failures with the new isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25748 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:19:37 +00:00
Jeff Cohen
41adb0d679 Improve X86 subtarget support for Windows and AMD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25747 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:09:06 +00:00
Chris Lattner
c52ad4f04e Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make it 
faster.  This cuts about 120 lines of code out of the legalizer (mostly code
checking to see if operands have changed).

It also fixes an ugly performance issue, where the legalizer cloned the entire
graph after any change.  Now the "UpdateNodeOperands" method gives it a chance
to reuse nodes if the operands of a node change but not its opcode or valuetypes.

This speeds up instruction selection time on kimwitu++ by about 8.2% with a
release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25746 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 10:58:55 +00:00
Chris Lattner
6b2469c1ad silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25745 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 10:34:47 +00:00
Chris Lattner
809ec11088 add another method variant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25744 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 10:09:25 +00:00
Chris Lattner
9b88361bef add another variant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25743 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 10:08:58 +00:00
Chris Lattner
df6eb30fa9 add some methods for updating nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25742 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 09:32:45 +00:00
Chris Lattner
b9aff659e8 Add some methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25741 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 09:32:01 +00:00
Chris Lattner
948c1b1cda minor tweaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25740 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 08:31:04 +00:00
Chris Lattner
22cde6a518 move a bunch of code, no other change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25739 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 08:25:58 +00:00
Chris Lattner
7cd2997a83 remove a couple more now-extraneous legalizeop's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25738 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 08:22:56 +00:00
Chris Lattner
5c62f337fe fix a bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25737 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 07:42:08 +00:00
Chris Lattner
456a93afce Several major changes: 
1. Pull out the expand cases for BSWAP and CT* into a separate function,
   reducing the size of LegalizeOp.
2. Fix a bug where expand(bswap i64) was wrong when i64 is legal.
3. Changed LegalizeOp/PromoteOp so that the legalizer never needs to be
   iterative.  It now operates in a single pass over the nodes.
4. Simplify a LOT of code, with a net reduction of ~280 lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25736 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 07:39:30 +00:00
Chris Lattner
e00ebf0aca Fix a bug in my elimination of ISD::CALL this morning. PPC now has to 
provide the expansion for i64 calls itself


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25735 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 07:33:03 +00:00
Chris Lattner
1e39a15b42 make this work on non-native hosts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25734 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 06:05:41 +00:00
Chris Lattner
969097968c add a note about how we should implement this FIXME from the legalizer: 
// FIXME: revisit this when we have some kind of mechanism by which targets
    // can decided legality of vector constants, of which there may be very
    // many.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25733 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 05:40:47 +00:00
Chris Lattner
8137c9e41d Eliminate the need for ExpandOp to set 'needsanotheriteration', as it already 
relegalizes the stuff it returns.

Add the ability to custom expand ADD/SUB, so that targets don't need to deal
with ADD_PARTS/SUB_PARTS if they don't want.

Fix some obscure potential bugs and simplify code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25732 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 05:07:51 +00:00
Chris Lattner
9c6b4b8c3a Instead of making callers of ExpandLibCall legalize the result, make 
ExpandLibCall do it itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25731 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 04:28:26 +00:00
Chris Lattner
0e8ea71a4f Eliminate the need to do another iteration of the legalizer after inserting 
a libcall.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25730 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 04:23:12 +00:00
Chris Lattner
7e871b28a2 remove this method I just added, now is not the time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25729 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 03:43:33 +00:00
Chris Lattner
04c62c78f4 remove method I just added 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25728 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 03:43:09 +00:00
Chris Lattner
4f16e70faa add a new callback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25727 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 03:37:03 +00:00