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0256ca3257
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12485 Commits

Author SHA1 Message Date
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
63f7e84632 add some methods for updating nodes 
llvm-svn: 25742
 2006-01-28 09:32:45 +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
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
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
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
Evan Cheng
51c1d32061 Added notes about a x86 isel deficiency. 
llvm-svn: 25706
 2006-01-27 22:11:01 +00:00
Evan Cheng
5c1d0d40dc Added a temporary option -enable-x86-sse to enable sse support. It is used by 
llc-beta.

llvm-svn: 25701
 2006-01-27 21:49:34 +00:00
Evan Cheng
746086dc97 Bye bye Pattern ISel, hello DAG ISel. 
llvm-svn: 25700
 2006-01-27 21:26:54 +00:00
Nate Begeman
d2c6fbef4a Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for 
the same functionality.  This addresses another piece of bug 680.  Next,
on to fixing Alpha VAARG, which I broke last time.

llvm-svn: 25696
 2006-01-27 21:09:22 +00:00
Jim Laskey
c8759505c4 Using bit size of integers instead of ambiguous "long" et all. 
llvm-svn: 25694
 2006-01-27 20:31:25 +00:00
Evan Cheng
577ea086c4 A better workaround 
llvm-svn: 25692
 2006-01-27 19:30:30 +00:00
Jim Laskey
2221ac79d5 Sorry - really folowing convention. 
llvm-svn: 25691
 2006-01-27 18:32:41 +00:00
Chris Lattner
932260bb64 force sse/3dnow off until they work. This fixes all the x86 failures last night 
llvm-svn: 25690
 2006-01-27 18:30:50 +00:00
Jim Laskey
479abc37ff Following convention. 
llvm-svn: 25689
 2006-01-27 18:28:31 +00:00
Chris Lattner
e1f4b9e384 Unbreak the JIT with SSE 
llvm-svn: 25688
 2006-01-27 18:27:18 +00:00
Andrew Lenharth
67e53709df fix build 
llvm-svn: 25687
 2006-01-27 18:16:17 +00:00
Chris Lattner
e4128dc8dc Fix build error that is apparently only a warning with some compilers. 
llvm-svn: 25686
 2006-01-27 17:31:30 +00:00
Jim Laskey
5ed7bc82cc Forgot the version number. 
llvm-svn: 25685
 2006-01-27 15:46:54 +00:00
Jim Laskey
89492c12bb Improve visibility/correctness of operand indices in "llvm.db" objects. 
Handle 64 in DIEs.

llvm-svn: 25684
 2006-01-27 15:20:54 +00:00
Reid Spencer
bd79be19a2 Fix auto-upgrade of intrinsics to work properly with both assembly and 
bytecode reading. This code is crufty, the result of much hacking to get things
working correctly. Cleanup patches will follow.

llvm-svn: 25682
 2006-01-27 11:49:27 +00:00
Evan Cheng
5891f49c47 x86 CPU detection and proper subtarget support 
llvm-svn: 25679
 2006-01-27 08:10:46 +00:00
Evan Cheng
77885c204d Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner
09d8aa244e Stub out a method 
llvm-svn: 25676
 2006-01-27 02:10:10 +00:00