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Author SHA1 Message Date
Chris Lattner
7a06abe72b cmovle != cmovlt 
llvm-svn: 25761
 2006-01-29 03:47:30 +00:00
Jeff Cohen
28a7bd94c9 Fix typo. 
llvm-svn: 25760
 2006-01-29 03:45:35 +00:00
Chris Lattner
f94049edf9 Split out code generation from analysis from emission 
llvm-svn: 25759
 2006-01-29 02:57:39 +00:00
Chris Lattner
6be3b584f4 move some code around, no change in the generated code 
llvm-svn: 25758
 2006-01-29 02:43:35 +00:00
Chris Lattner
3cdfba635c 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.

llvm-svn: 25757
 2006-01-28 20:43:52 +00:00
Chris Lattner
b6fc7b5e71 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 :)

llvm-svn: 25756
 2006-01-28 20:31:24 +00:00
Jeff Cohen
3ef56b005a Flesh out AMD family/models. 
llvm-svn: 25755
 2006-01-28 20:30:18 +00:00
Jeff Cohen
08656fa2a6 Correctly determine CPU vendor. 
llvm-svn: 25754
 2006-01-28 19:48:34 +00:00
Reid Spencer
271ffbfa90 Make long warnings wrap and have less indent so other portions of the page 
are not skewed out of view.

llvm-svn: 25753
 2006-01-28 19:44:48 +00:00
Chris Lattner
d9026d62f8 Fit to 80 columns, no functionality change 
llvm-svn: 25752
 2006-01-28 19:06:51 +00:00
Jeff Cohen
057816014c Use union instead of reinterpret_cast. 
llvm-svn: 25751
 2006-01-28 18:47:32 +00:00
Jeff Cohen
6d330738c1 Fix recognition of Intel CPUs. 
llvm-svn: 25750
 2006-01-28 18:38:20 +00:00
Chris Lattner
e5bf55bf7b Is64Bit reflects the capability of the chip, not an aspect of the target os 
llvm-svn: 25749
 2006-01-28 18:23:48 +00:00
Chris Lattner
0256ca3257 Fix a bunch of JIT failures with the new isel 
llvm-svn: 25748
 2006-01-28 18:19:37 +00:00
Jeff Cohen
4d971bdfa7 Improve X86 subtarget support for Windows and AMD. 
llvm-svn: 25747
 2006-01-28 18:09:06 +00:00
Chris Lattner
40973347bf 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.

llvm-svn: 25746
 2006-01-28 10:58:55 +00:00
Chris Lattner
744d9a40f0 silence a warning 
llvm-svn: 25745
 2006-01-28 10:34:47 +00:00
Chris Lattner
8768eb7532 add another method variant 
llvm-svn: 25744
 2006-01-28 10:09:25 +00:00
Chris Lattner
9ecc961b8c add another variant 
llvm-svn: 25743
 2006-01-28 10:08:58 +00:00
Chris Lattner
63f7e84632 add some methods for updating nodes 
llvm-svn: 25742
 2006-01-28 09:32:45 +00:00
Chris Lattner
1761a3e6bb Add some methods 
llvm-svn: 25741
 2006-01-28 09:32:01 +00:00
Chris Lattner
99bdf26410 minor tweaks 
llvm-svn: 25740
 2006-01-28 08:31:04 +00:00
Chris Lattner
94ab3cee71 move a bunch of code, no other change. 
llvm-svn: 25739
 2006-01-28 08:25:58 +00:00
Chris Lattner
9633d61b5b remove a couple more now-extraneous legalizeop's 
llvm-svn: 25738
 2006-01-28 08:22:56 +00:00
Chris Lattner
4bc3abc3d0 fix a bug 
llvm-svn: 25737
 2006-01-28 07:42:08 +00:00
Chris Lattner
8eed1b6bda 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.

llvm-svn: 25736
 2006-01-28 07:39:30 +00:00
Chris Lattner
d2eb15f467 Fix a bug in my elimination of ISD::CALL this morning. PPC now has to 
provide the expansion for i64 calls itself

llvm-svn: 25735
 2006-01-28 07:33:03 +00:00
Chris Lattner
686a1203f0 make this work on non-native hosts 
llvm-svn: 25734
 2006-01-28 06:05:41 +00:00
Chris Lattner
170727421b 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.

llvm-svn: 25733
 2006-01-28 05:40:47 +00:00
Chris Lattner
84086fd689 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.

llvm-svn: 25732
 2006-01-28 05:07:51 +00:00
Chris Lattner
3b5a984065 Instead of making callers of ExpandLibCall legalize the result, make 
ExpandLibCall do it itself.

llvm-svn: 25731
 2006-01-28 04:28:26 +00:00
Chris Lattner
045a778e63 Eliminate the need to do another iteration of the legalizer after inserting 
a libcall.

llvm-svn: 25730
 2006-01-28 04:23:12 +00:00
Chris Lattner
2240c0df71 remove this method I just added, now is not the time. 
llvm-svn: 25729
 2006-01-28 03:43:33 +00:00
Chris Lattner
d6d4bcc419 remove method I just added 
llvm-svn: 25728
 2006-01-28 03:43:09 +00:00
Chris Lattner
063c13029b add a new callback 
llvm-svn: 25727
 2006-01-28 03:37:03 +00:00
Nate Begeman
87c2c0e66b Implement Promote for VAARG, and allow it to be custom promoted for people 
who don't want the default behavior (Alpha).

llvm-svn: 25726
 2006-01-28 03:14:31 +00:00
Nate Begeman
a46156da35 Add a couple more things to the readme. 
llvm-svn: 25724
 2006-01-28 01:22:10 +00:00
Nate Begeman
dc3fba6b6b Add a missing case to the dag combiner. 
llvm-svn: 25723
 2006-01-28 01:06:30 +00:00
Chris Lattner
e7428f436a Remove the ISD::CALL and ISD::TAILCALL nodes 
llvm-svn: 25721
 2006-01-28 00:18:58 +00:00
Chris Lattner
c9fb6af71c The 'target-independent' ISD::CALL isn't. Nuke it, making way for Nate's 
future work.

llvm-svn: 25720
 2006-01-28 00:18:27 +00:00
Chris Lattner
d467a681e9 Remove some dead code 
llvm-svn: 25719
 2006-01-28 00:02:51 +00:00
Chris Lattner
2d4f83eaaf Switch to AlphaISD::CALL instead of ISD::CALL 
llvm-svn: 25718
 2006-01-27 23:39:00 +00:00
Chris Lattner
6a5d2450a3 Use PPCISD::CALL instead of ISD::CALL 
llvm-svn: 25717
 2006-01-27 23:34:02 +00:00
Chris Lattner
ab3ad7d4ef Use V8ISD::CALL instead of ISD::CALL 
llvm-svn: 25716
 2006-01-27 23:30:03 +00:00
Evan Cheng
442713efd7 A bit of wisdom from Chris on the last entry. 
llvm-svn: 25715
 2006-01-27 22:54:32 +00:00
Evan Cheng
03aaa82992 AT&T assembly convention: registers are in lower case. 
llvm-svn: 25714
 2006-01-27 22:53:29 +00:00
Evan Cheng
1db9df37e9 Use Intel assembly syntax to look for ST 
llvm-svn: 25713
 2006-01-27 22:51:51 +00:00
Chris Lattner
c245c32022 initialize member vars 
llvm-svn: 25712
 2006-01-27 22:38:36 +00:00
Chris Lattner
35d325e8aa initialize all instance vars 
llvm-svn: 25711
 2006-01-27 22:37:09 +00:00
Chris Lattner
59a4f3f637 Make llvm.frame/returnaddr not crash on ppc 
llvm-svn: 25710
 2006-01-27 22:25:06 +00:00