Jeff Cohen
41adb0d679
Improve X86 subtarget support for Windows and AMD.
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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
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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
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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
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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
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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
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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
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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
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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.
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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
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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
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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:
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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
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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
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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:
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// 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
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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
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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
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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.
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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
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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
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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
Nate Begeman
0aed7840ec
Implement Promote for VAARG, and allow it to be custom promoted for people
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who don't want the default behavior (Alpha).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 03:14:31 +00:00
Nate Begeman
eb20ed6c86
Add a couple more things to the readme.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25724 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 01:22:10 +00:00
Nate Begeman
61af66e687
Add a missing case to the dag combiner.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25723 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 01:06:30 +00:00
Chris Lattner
0ff5c27a00
Remove the ISD::CALL and ISD::TAILCALL nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25721 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 00:18:58 +00:00
Chris Lattner
253a87d667
The 'target-independent' ISD::CALL isn't. Nuke it, making way for Nate's
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future work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25720 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 00:18:27 +00:00
Chris Lattner
34fa038f0c
Remove some dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25719 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 00:02:51 +00:00
Chris Lattner
2d90bd5f42
Switch to AlphaISD::CALL instead of ISD::CALL
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25718 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 23:39:00 +00:00
Chris Lattner
281b55ebec
Use PPCISD::CALL instead of ISD::CALL
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25717 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 23:34:02 +00:00
Chris Lattner
44ea7b1a6c
Use V8ISD::CALL instead of ISD::CALL
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25716 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 23:30:03 +00:00
Evan Cheng
d41e9e5e7a
A bit of wisdom from Chris on the last entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25715 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:54:32 +00:00
Evan Cheng
85214ba3cc
AT&T assembly convention: registers are in lower case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25714 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:53:29 +00:00
Evan Cheng
992694418b
Use Intel assembly syntax to look for ST
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25713 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:51:51 +00:00
Chris Lattner
184cc4ac60
initialize member vars
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25712 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:38:36 +00:00
Chris Lattner
104988a16a
initialize all instance vars
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25711 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:37:09 +00:00
Chris Lattner
bba534dc66
Make llvm.frame/returnaddr not crash on ppc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25710 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:25:06 +00:00
Jeff Cohen
9b0ffca478
Teach tablegen to generate code that is VC++ warning-free.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25709 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:22:28 +00:00
Evan Cheng
c15d18c501
(store (op (load ...)), ...)
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If store's chain operand is load, then use load's chain operand instead. If
it isn't (likely a TokenFactor), then do not allow the folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25708 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:13:45 +00:00
Chris Lattner
896811180f
* Eliminate FAKE_SOURCES
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* Make runtimes and projects build with the new front-end by not relying on
'llvm-gcc -c' to build a .bc file. Instead, use llvm-gcc -S -emit-llvm,
then an explicit invocation of gccas. Also, don't use llvm-gcc to link
.bc files together, use gccld directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25707 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:13:12 +00:00
Evan Cheng
e826a018b9
Added notes about a x86 isel deficiency.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25706 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:11:01 +00:00
Chris Lattner
038c2a1292
Remove out of date comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25705 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:06:50 +00:00
Chris Lattner
3880f1afd6
Remove the only use of FAKE_SOURCES
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25704 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:06:23 +00:00
Chris Lattner
1faf544c12
Remove FAKE_SOURCES
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25703 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:06:01 +00:00
Evan Cheng
dbd38d7f64
Added a temporary option -enable-x86-sse to enable sse support. It is used by
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llc-beta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25701 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:49:34 +00:00
Evan Cheng
8e44f0756f
Bye bye Pattern ISel, hello DAG ISel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25700 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:26:54 +00:00
Evan Cheng
69c543709d
X86 dag isel is now (soon) the default.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25699 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:15:22 +00:00
Evan Cheng
9bd79b17ef
These are fp stack test cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25698 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:14:23 +00:00
Evan Cheng
8cb1e2b6f4
XFAIL tailcall test cases until it's implemented.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25697 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:13:27 +00:00
Nate Begeman
ee625573b5
Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for
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the same functionality. This addresses another piece of bug 680. Next,
on to fixing Alpha VAARG, which I broke last time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25696 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 21:09:22 +00:00
Jim Laskey
da427fa5da
Using bit size of integers instead of ambiguous "long" et all.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25694 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 20:31:25 +00:00