Chris Lattner
e214979f79
Make this work with the internalize change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23812 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:41:47 +00:00
Chris Lattner
8be1fa5dc5
Convert these cases to patterns
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23811 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:38:02 +00:00
Chris Lattner
0c0cfa741f
Nate wants to define 'Pat's which turn into instructions that don't have
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patterns. Certainly a logical request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23810 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:27:22 +00:00
Nate Begeman
8d94832394
Woo, it kinda works. We now generate this atrociously bad, but correct,
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code for long long foo(long long a, long long b) { return a + b; }
_foo:
or r2, r3, r3
or r3, r4, r4
or r4, r5, r5
or r5, r6, r6
rldicr r2, r2, 32, 31
rldicl r3, r3, 0, 32
rldicr r4, r4, 32, 31
rldicl r5, r5, 0, 32
or r2, r3, r2
or r3, r5, r4
add r4, r3, r2
rldicl r2, r4, 32, 32
or r4, r4, r4
or r3, r2, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23809 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:12:32 +00:00
Chris Lattner
07c375d6f6
Testcase that crashes llvmgcc in type layout
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23806 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 00:52:21 +00:00
Chris Lattner
e5468305a0
apply some tblgen majik to simplify the X register definitions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23805 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 00:17:55 +00:00
Nate Begeman
5dc897b0e4
Teach Legalize how to do something with EXTRACT_ELEMENT when the type of
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the pair of elements is a legal type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23804 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 00:06:56 +00:00
Nate Begeman
da32c9eed6
Make a new reg class for 64 bit regs that aliases the 32 bit regs. This
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will have to tide us over until we get real subreg support, but it prevents
the PrologEpilogInserter from spilling 8 byte GPRs on a G4 processor.
Add some initial support for TRUNCATE and ANY_EXTEND, but they don't
currently work due to issues with ScheduleDAG. Something wll have to be
figured out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23803 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 00:05:37 +00:00
Nate Begeman
4a95945fa5
Add the ability to lower return instructions to TargetLowering. This
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allows us to lower legal return types to something else, to meet ABI
requirements (such as that i64 be returned in two i32 regs on Darwin/ppc).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23802 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 23:23:37 +00:00
Chris Lattner
d222f6ab67
Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero
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sized stack object if either the array size or the type size is zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23801 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 22:14:06 +00:00
Chris Lattner
f46544cd82
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23798 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 22:13:39 +00:00
Chris Lattner
2dfa8192ab
remove hack
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23797 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 22:11:42 +00:00
Chris Lattner
a1fa8f1d8a
This was never updated for the project makefile changes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23790 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 18:50:26 +00:00
Chris Lattner
ed069fcf88
This never got updated to reflect the project makefile changes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23789 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 18:48:30 +00:00
Jim Laskey
21f587ca24
Simple edits; remove unimplimented cases and clarify long haul SLU cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23788 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 16:59:23 +00:00
Chris Lattner
841d12d9ac
Fix the JIT encoding of LWA, LD, STD, and STDU.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23787 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 16:51:22 +00:00
Jim Laskey
076866c50f
Checking in first round of scheduling tablegen files. Not tied in as yet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23786 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 16:23:40 +00:00
Chris Lattner
3d8df55fed
add a case
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23785 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 06:30:51 +00:00
Chris Lattner
fbcd54f2cb
Fix PR637
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23784 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 06:29:43 +00:00
Chris Lattner
a27ea769eb
Add an option to this pass. If it is set, we are allowed to internalize
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all but main. If it's not set, we can still internalize, but only if an
explicit symbol list is provided.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23783 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 06:29:22 +00:00
Chris Lattner
f9c6105a78
add an option to the internalize pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23782 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 06:28:16 +00:00
Chris Lattner
40c62d5069
Fold (select C, load A, load B) -> load (select C, A, B). This happens quite
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a lot throughout many programs. In particular, specfp triggers it a bunch for
constant FP nodes when you have code like cond ? 1.0 : -1.0.
If the PPC ISel exposed the loads implicit in pic references to external globals,
we would be able to eliminate a load in cases like this as well:
%X = external global int
%Y = external global int
int* %test4(bool %C) {
%G = select bool %C, int* %X, int* %Y
ret int* %G
}
Note that this breaks things that use SrcValue's (see the fixme), but since nothing
uses them yet, this is ok.
Also, simplify some code to use hasOneUse() on an SDOperand instead of hasNUsesOfValue directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23781 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 06:04:22 +00:00
Chris Lattner
b277cbc087
Duraid pointed out that it is impolite to emit PPC:: into the IA64 backend
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23780 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 04:41:01 +00:00
Nate Begeman
9d2b817fcb
Do the right thing and enable 64 bit regs under the control of a subtarget
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option. Currently the only way to enable this is to specify the
64bitregs mattr flag. It is never enabled by default on any config yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23779 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 00:56:42 +00:00
Nate Begeman
1d9d7427c4
First bits of 64 bit PowerPC stuff, currently disabled. A lot of this is
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purely mechanical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23778 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 00:28:58 +00:00
Nate Begeman
a0e221dc75
Implement some feedback from Chris re: constant canonicalization
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23777 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 00:28:13 +00:00
Nate Begeman
419f8b62f7
Legalize BUILD_PAIR appropriately for upcoming 64 bit PowerPC work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23776 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 00:27:41 +00:00
John Criswell
d41abfa1d2
Use %s instead of hard coding the input filename.
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This allows the test to work when srcdir != objdir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23775 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 21:54:18 +00:00
Nate Begeman
11af4eaa6d
fold fmul X, +2.0 -> fadd X, X;
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23774 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 20:40:11 +00:00
Chris Lattner
8532cf6258
Make this work for FP constantexprs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23773 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 20:18:38 +00:00
Chris Lattner
5e678e03b7
Oops, X+0.0 isn't foldable, but X+-0.0 is.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23772 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 17:56:38 +00:00
Chris Lattner
560a17d3bc
relax this a bit, as we only support the default rounding mode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23771 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 17:49:32 +00:00
Chris Lattner
a1ff93159a
Apparently, people object to floating pointers. Picky picky.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23770 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 15:19:24 +00:00
Jim Laskey
82d61a18d5
As requested, a blurb on sub-targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23769 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 12:19:10 +00:00
Chris Lattner
7d6915cf43
fix some grammar-o's I noticed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23768 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 04:18:41 +00:00
Chris Lattner
c38959ff77
Feedback from Nate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23767 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 03:09:31 +00:00
Chris Lattner
df921f0709
Document -view-isel-dags and -view-sched-dags
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23766 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:40:33 +00:00
Chris Lattner
f623a08441
Add notes about MF.viewCFG() and friends.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23765 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:36:23 +00:00
Chris Lattner
854077d3a5
add a trivial fold
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23764 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:07:11 +00:00
Chris Lattner
7a025c8b4d
Add a bunch of info about the isel autogenerator. Review appreciated!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23763 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 20:02:19 +00:00
Chris Lattner
32e89f2b92
Fill this out some more. Add description of MBB/MF. Fix some broken links,
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turn some broken <a name> into <a href>'s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23762 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 18:31:08 +00:00
Chris Lattner
47adebb3e3
Add a stub for the TargetSubtarget class. Jim, please fill a blurb in here
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when you get a chance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23761 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 17:06:07 +00:00
Chris Lattner
c3b05403b7
Update this significantly, mention subtarget and isel generation support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23760 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 17:03:22 +00:00
Nate Begeman
21e463b2bf
More PPC32 -> PPC changes, as well as merging some classes that were
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redundant after the change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 05:39:50 +00:00
Chris Lattner
5024d93c8b
Make the generated code significantly more memory efficient, by using
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SelectNodeTo instead of getTargetNode when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23758 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 01:41:58 +00:00
Chris Lattner
e35d3bb84e
update this a little bit to talk about the dag combiner and remove inaccuracies.
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This still doesn't talk about autogen much
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23757 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 00:36:38 +00:00
Chris Lattner
750dbd5950
Fix this logic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23756 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:35:40 +00:00
Chris Lattner
85d63bbff7
Add a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll:test3
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23755 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:18:08 +00:00
Nate Begeman
34f342e36f
Remove some dead code now that the dag combiner exists.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:08:02 +00:00
Chris Lattner
4cb5a1b896
Remove some dead code: the ORI/ORIS cases are autogen'd. This makes
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SelectIntImmediateExpr dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23753 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:06:18 +00:00