Chris Lattner
81363c3871
use chain operands to ensure the copies don't wander from the rdtsc instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24434 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 22:01:40 +00:00
Chris Lattner
33a13d4bd2
This should not be dce'd
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24433 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:46:52 +00:00
Andrew Lenharth
87420af40b
oops
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24432 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:42:49 +00:00
Andrew Lenharth
bbafae6c80
check that rdtsc is generated from readcyclecounter
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24431 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:41:59 +00:00
Andrew Lenharth
b873ff322c
The second patch of X86 support for read cycle counter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:41:10 +00:00
Andrew Lenharth
f70e30b41d
The first patch of X86 support for read cycle counter
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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,
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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
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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
3367079b0b
Initialize this variable on all paths, fixing a crasher in windows. Thanks
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to JeffC for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24426 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 07:48:33 +00:00
Chris Lattner
3aa2c74e19
Improve Selection DAG printer portability. Patch by Owen Anderson!
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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
65303d6bd7
Teach tblgen about instruction operands that have multiple MachineInstr
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operands, digging into them to find register values (used on X86). Patch
by Evan Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24424 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 07:05:57 +00:00
Chris Lattner
6adaf79ad7
Teach the x86 backend about the register constraints of its addressing mode.
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Patch by Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24423 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 07:01:30 +00:00
Chris Lattner
be7a2ff2dd
Capture more operand info, patch by Evan Cheng
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24422 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 07:00:10 +00:00
Chris Lattner
44fa764355
Teach the graph viewer to handle register operands that are zero.
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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
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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
f9ce9fb49b
Add load and other support to the dag-dag isel. Patch contributed by Evan
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Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 02:11:08 +00:00
Chris Lattner
0fb094fd60
Add some method variants, patch by Evan Cheng
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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
Chris Lattner
8f3366ad27
Add two new construction methods, patch by Evan Cheng
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 01:42:10 +00:00
Nate Begeman
5fbb5d2459
Teach LLVM how to scalarize packed types. Currently, this only works on
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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
Chris Lattner
06a4043872
testcase for recent indvars patches
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24415 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 19:38:15 +00:00
Chris Lattner
1730078d5f
Fix a crash building 176.gcc due to my recent patch, which only fixed
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half the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24414 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 18:30:47 +00:00
Andrew Lenharth
f27b6145af
prevent latent switch creation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24413 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 13:57:03 +00:00
Nate Begeman
e21ea61588
Split out the shift code from visitBinary.
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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
36ba5006df
Implement a refinement to the mem2reg algorithm for cases where an alloca
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has a single def. In this case, look for uses that are dominated by the def
and attempt to rewrite them to directly use the stored value.
This speeds up mem2reg on these values and reduces the number of phi nodes
inserted. This should address PR665.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24411 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:31:42 +00:00
Chris Lattner
fed40df846
This needs proper dominance
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24410 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:29:44 +00:00
Chris Lattner
4b5086cc71
post-dom-frontiers requires proper post-dominance
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24409 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:28:26 +00:00
Chris Lattner
a1fecc9c26
This requires proper dominance
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24408 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:27:53 +00:00
Chris Lattner
a35bef9db2
Fix the dominates method to return true if the two nodes are the same. Add
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a new properlyDominates method to do what the old one did.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24407 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 07:27:33 +00:00
Chris Lattner
f124d5e500
add more patterns, patch by Evan Cheng.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24406 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 01:04:42 +00:00
Nate Begeman
69a2cf421b
Also add the new vector value type here, for completeness.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24405 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 00:53:32 +00:00
Nate Begeman
395cba8d41
Teach the type lowering code about turning packed types into vector types.
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Next step: generating vector dag nodes, and legalizing them into scalar
code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24404 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 21:44:42 +00:00
Chris Lattner
9542f9714e
only use dyld stubs if not in ppc-static mode. This completes support for
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non-static codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24403 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 19:40:30 +00:00
Chris Lattner
ceda605fd7
This was checking the wrong GEP expression. Fixing this fixes a gccas crash
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compiling mysql reported by Ted Kremenek.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24402 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 19:35:42 +00:00
Chris Lattner
9ba13e4aef
refactor call operand handling to eliminate special cases from printOp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24401 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 19:25:59 +00:00
Chris Lattner
3e7f86a037
disentangle call operands from branch operands a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24400 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 19:16:08 +00:00
Chris Lattner
1d05cb47a9
add an option to generate completely non-pic code, corresponding to what
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gcc -static produces on PPC. This is used for building kexts and other things.
With this, materializing the address of a global looks like:
lis r2, ha16(L_H$non_lazy_ptr)
la r3, lo16(L_H$non_lazy_ptr)(r2)
we're still emitting stubs for functions, which is wrong. That is next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24399 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 18:55:48 +00:00
Chris Lattner
1df747867c
Fix a bug that resistor on IRC hit where we tried to create token factor
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nodes of load results, not of their chain results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24398 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 18:30:17 +00:00
Chris Lattner
3eef4e377c
Enable global address legalization, fixing a todo and allowing the removal
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of some code. This exposes the implicit load from the stubs to the DAG, allowing
them to be optimized by the dag combiner. It also moves darwin specific stuff
out of the isel into the legalizer, and allows more to be moved to the .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24397 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 18:26:56 +00:00
Chris Lattner
4f0f86de5f
Teach the selector to fold lo(g) into load instruction immediate fields
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24396 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 18:02:16 +00:00
Chris Lattner
490ad08097
Generate LA and ADDIS when possible.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24395 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 17:52:01 +00:00
Chris Lattner
1566613ca4
Use the right accessor to create this node
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24394 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 17:51:38 +00:00
Chris Lattner
09c033962b
Validate that the input to 'Pat' patterns is sane.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24393 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 17:43:52 +00:00
Chris Lattner
cb8346563b
Allow users to specify -Wl,-native* multiple times if they please
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24392 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 16:08:04 +00:00
Chris Lattner
b120a64e13
teach tblgen to be smart enough to handle tglobaladdr nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24391 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 07:39:45 +00:00
Chris Lattner
860e8862c1
Add an initial hack at legalizing GlobalAddress into the appropriate nodes
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on Darwin to remove smarts from the isel. This is currently disabled by
default (uncomment setOperationAction(ISD::GlobalAddress to enable it).
tblgen needs to become smarter about tglobaladdr nodes and bigger patterns
needed to be added to the .td file. However, we can currently emit stuff like
this: :)
li r2, lo16(L_x$non_lazy_ptr)
lis r3, ha16(L_x$non_lazy_ptr)
lwzx r2, r3, r2
The obvious improvements will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24390 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 07:30:41 +00:00
Chris Lattner
db40dc2d63
Add globaladdress and targetglobaladdress nodes for dag patterns
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24389 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 07:20:15 +00:00
Chris Lattner
bae5b3c1c6
LI could theoretically be used for the lo-part of a global address, just like
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lis can be used for the high part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24388 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 07:04:43 +00:00
Chris Lattner
0c8fbe33a4
Allow targets to custom legalize leaf nodes like GlobalAddress.
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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
2823b3e70e
When lowering direct calls, lower them to use a targetglobaladress directly
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instead of a globaladdress. This has no effect on the generated code at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24386 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 05:56:14 +00:00
Chris Lattner
b9debbf54c
Teach legalize about targetglobaladdress
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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