Chris Lattner
b48da39536
Remove the 3 HACK HACK HACKs I put in before, fixing them properly with
...
the new TLI that is available.
Implement support for handling out of range shifts. This allows us to
compile this code (a 64-bit rotate):
unsigned long long f3(unsigned long long x) {
return (x << 32) | (x >> (64-32));
}
into this:
f3:
mov %EDX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP + 8]
ret
GCC produces this:
$ gcc t.c -masm=intel -O3 -S -o - -fomit-frame-pointer
..
f3:
push %ebx
mov %ebx, DWORD PTR [%esp+12]
mov %ecx, DWORD PTR [%esp+8]
mov %eax, %ebx
mov %edx, %ecx
pop %ebx
ret
The Simple ISEL produces (eww gross):
f3:
sub %ESP, 4
mov DWORD PTR [%ESP], %ESI
mov %EDX, DWORD PTR [%ESP + 8]
mov %ECX, DWORD PTR [%ESP + 12]
mov %EAX, 0
mov %ESI, 0
or %EAX, %ECX
or %EDX, %ESI
mov %ESI, DWORD PTR [%ESP]
add %ESP, 4
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19780 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 04:39:44 +00:00
Chris Lattner
ac9dc08c7f
Adjust to changes in SelectionDAG interface.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19779 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 04:36:26 +00:00
Chris Lattner
68cd65ea68
Get this to work for 64-bit systems.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19763 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 23:04:37 +00:00
Chris Lattner
7cd50cf286
More bugfixes for IA64 shifts.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19739 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 00:33:03 +00:00
Chris Lattner
27ff112948
Fix problems with non-x86 targets.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19738 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 00:31:52 +00:00
Chris Lattner
a7306db5f7
Add a nasty hack to fix Alpha/IA64 multiplies by a power of two.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19737 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 00:20:42 +00:00
Chris Lattner
9bb86f46e1
Remove unneeded line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19736 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 23:43:12 +00:00
Chris Lattner
1e7ceaf0a0
test commit
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19735 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 23:38:56 +00:00
Chris Lattner
a93ec3ebfb
Unary token factor nodes are unneeded.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19727 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 18:01:22 +00:00
Chris Lattner
77e77a6aa0
Refactor libcall code a bit. Initial implementation of expanding int -> FP
...
operations for 64-bit integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19724 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 06:05:23 +00:00
Chris Lattner
e5544f851a
Simplify the shift-expansion code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19721 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 20:29:23 +00:00
Chris Lattner
84f6788044
Expand add/sub into ADD_PARTS/SUB_PARTS instead of a non-existant libcall.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 18:52:28 +00:00
Chris Lattner
17eee18f40
implement add_parts/sub_parts.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19714 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 18:50:55 +00:00
Chris Lattner
2c49f27955
Support targets that do not use i8 shift amounts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19707 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 22:31:21 +00:00
Chris Lattner
3d9dffc586
Add support for targets that pass args in registers to calls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19703 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 20:24:35 +00:00
Chris Lattner
1e81b9e511
Fold single use token factor nodes into other token factor nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19701 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 19:10:54 +00:00
Chris Lattner
ec39a45bdb
Realize the individual pieces of an expanded copytoreg/store/load are
...
independent of each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19700 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 18:02:17 +00:00
Chris Lattner
39908e0ce0
Know some identities about tokenfactor nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19699 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 18:01:40 +00:00
Chris Lattner
88218ef706
Know some simple identities. This improves codegen for (1LL << N).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19698 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 17:29:49 +00:00
Chris Lattner
e34b396ab7
Implement a way of expanding shifts. This applies to targets that offer
...
select operations or to shifts that are by a constant. This automatically
implements (with no special code) all of the special cases for shift by 32,
shift by < 32 and shift by > 32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 04:19:40 +00:00
Chris Lattner
d6e496732b
Add a hook to find out how the target handles shift amounts that are out of
...
range. Either they are undefined (the default), they mask the shift amount
to the size of the register (X86, Alpha, etc), or they extend the shift (PPC).
This defaults to undefined, which is conservatively correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 03:36:14 +00:00
Chris Lattner
d5d5682512
Zero is cheaper than sign extend.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19675 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 21:57:59 +00:00
Chris Lattner
47e9223e06
Fix some fixmes (promoting bools for select and brcond), fix promotion
...
of zero and sign extends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19671 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 19:27:06 +00:00
Chris Lattner
4a9b4f1943
Keep track of the retval type as well.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 19:26:36 +00:00
Chris Lattner
ef5cd1d3cf
Teach legalize to promote copy(from|to)reg, instead of making the isel pass
...
do it. This results in better code on X86 for floats (because if strict
precision is not required, we can elide some more expensive double -> float
conversions like the old isel did), and allows other targets to emit
CopyFromRegs that are not legal for arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19668 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 17:54:55 +00:00
Chris Lattner
82fbfb6984
Teach legalize to promote SetCC results.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 02:59:52 +00:00
Chris Lattner
f30b73b1c6
Allow setcc operations to have nonbool types.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19656 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 02:52:03 +00:00
Chris Lattner
6e4e7652d8
Fix the completely broken FP constant folds for setcc's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19651 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18 02:11:55 +00:00
Chris Lattner
d3948116b8
Non-volatile loads can be freely reordered against each other. This fixes
...
X86/reg-pressure.ll again, and allows us to do nice things in other cases.
For example, we now codegen this sort of thing:
int %loadload(int *%X, int* %Y) {
%Z = load int* %Y
%Y = load int* %X ;; load between %Z and store
%Q = add int %Z, 1
store int %Q, int* %Y
ret int %Y
}
Into this:
loadload:
mov %EAX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%EAX]
mov %ECX, DWORD PTR [%ESP + 8]
inc DWORD PTR [%ECX]
ret
where we weren't able to form the 'inc [mem]' before. This also lets the
instruction selector emit loads in any order it wants to, which can be good
for register pressure as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17 22:19:26 +00:00
Chris Lattner
a651cf67b7
Don't call SelectionDAG.getRoot() directly, go through a forwarding method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17 19:43:36 +00:00
Chris Lattner
0afa8e348e
Implement a target independent optimization to codegen arguments only into
...
the basic block that uses them if possible. This is a big win on X86, as it
lets us fold the argument loads into instructions and reduce register pressure
(by not loading all of the arguments in the entry block).
For this (contrived to show the optimization) testcase:
int %argtest(int %A, int %B) {
%X = sub int 12345, %A
br label %L
L:
%Y = add int %X, %B
ret int %Y
}
we used to produce:
argtest:
mov %ECX, DWORD PTR [%ESP + 4]
mov %EAX, 12345
sub %EAX, %ECX
mov %EDX, DWORD PTR [%ESP + 8]
.LBBargtest_1: # L
add %EAX, %EDX
ret
now we produce:
argtest:
mov %EAX, 12345
sub %EAX, DWORD PTR [%ESP + 4]
.LBBargtest_1: # L
add %EAX, DWORD PTR [%ESP + 8]
ret
This also fixes the FIXME in the code.
BTW, this occurs in real code. 164.gzip shrinks from 8623 to 8608 lines of
.s file. The stack frame in huft_build shrinks from 1644->1628 bytes,
inflate_codes shrinks from 116->108 bytes, and inflate_block from 2620->2612,
due to fewer spills.
Take that alkis. :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19639 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17 17:55:19 +00:00
Chris Lattner
068a81e9fc
Refactor code into a new method.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19635 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17 17:15:02 +00:00
Chris Lattner
714b69d047
Shift and setcc types default to the pointer type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19619 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 23:59:48 +00:00
Chris Lattner
8ac532c55e
Implement legalize of call nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19617 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 19:46:48 +00:00
Chris Lattner
55ba8fba75
Revamp supported ops. Instead of just being supported or not, we now keep
...
track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.
Implement custom lowering for a couple of ops, implement promotion for select
operations (which x86 needs).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19613 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 07:29:19 +00:00
Chris Lattner
171453a284
add method stub
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19612 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 07:28:41 +00:00
Chris Lattner
4b7899343e
Don't mash stuff together.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19611 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 07:28:31 +00:00
Chris Lattner
cba82f9339
Use enums, move virtual dtor out of line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19610 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 07:28:11 +00:00
Chris Lattner
f8161d83f0
Implement some more missing promotions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19606 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 05:06:12 +00:00
Chris Lattner
9467497ae2
Clarify assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19597 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 02:23:34 +00:00
Chris Lattner
7636512f59
Add assertions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19596 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 02:23:22 +00:00
Chris Lattner
c8ea3c4710
Add support for promoted registers being live across blocks.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19595 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 02:23:07 +00:00
Chris Lattner
cfdfe4ce4a
Set up identity transforms.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19584 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 01:20:18 +00:00
Chris Lattner
71c42a0190
Move some information into the TargetLowering object.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19583 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 01:11:45 +00:00
Chris Lattner
98e5c0e5e4
Use the new TLI method to get this.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19582 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 01:11:19 +00:00
Chris Lattner
bb97d81cc8
Move some information out of LegalizeDAG into the generic Target interface.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19581 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 01:10:58 +00:00
Chris Lattner
1713e73b8a
legalize a bunch of operations that I missed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19580 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 00:38:00 +00:00
Chris Lattner
fb849800ea
Add support for targets that require promotions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19579 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 00:37:38 +00:00
Chris Lattner
ff3e50cc39
Fix some serious bugs in promotion.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19578 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 00:17:42 +00:00
Chris Lattner
950aa3ca2c
Eliminate unneeded extensions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19577 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-16 00:17:20 +00:00
Chris Lattner
8b6fa22e72
Implement promotion of a whole bunch more operators. I think that this is
...
basically everything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19576 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 22:16:26 +00:00
Chris Lattner
8a389bb376
Print extra type for nodes with extra type info.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19575 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 21:11:37 +00:00
Chris Lattner
45b8caf1c5
Add support for legalizing FP_ROUND_INREG, SIGN_EXTEND_INREG, and
...
ZERO_EXTEND_INREG for targets that don't support them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19573 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 07:15:18 +00:00
Chris Lattner
4ea6924444
Common code factored out.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19572 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 07:14:32 +00:00
Chris Lattner
0f69b29108
Add support for promoting ADD/MUL.
...
Add support for new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
Realize that if we do any promotions, we need to iterate SelectionDAG
construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19569 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 06:18:18 +00:00
Chris Lattner
859157daee
Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19568 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 06:17:04 +00:00
Chris Lattner
03c8546ec5
Add intitial support for promoting some operators.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19565 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-15 05:21:40 +00:00
Chris Lattner
69a52155d2
Adjust to CopyFromReg changes, implement deletion of truncating/extending
...
stores/loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19562 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-14 22:38:01 +00:00
Chris Lattner
2ee743ff9b
Start implementing truncating stores and extending loads.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-14 22:08:15 +00:00
Chris Lattner
18c2f13e0f
Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19535 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-13 20:50:02 +00:00
Chris Lattner
5a6c6d98d5
Don't forget the existing root.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19531 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-13 19:53:14 +00:00
Chris Lattner
ddb870b065
Codegen independent ops as being independent.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19528 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-13 17:59:43 +00:00
Chris Lattner
a385e9b20f
Legalize new node, add assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19527 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-13 17:59:25 +00:00
Chris Lattner
282c5cae89
Print new node.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19526 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-13 17:59:10 +00:00
Chris Lattner
2f0ca79a75
Do not fold (zero_ext (sign_ext V)) -> (sign_ext V), they are not the same.
...
This fixes llvm-test/SingleSource/Regression/C/casts.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19519 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-12 18:51:15 +00:00
Chris Lattner
5c88456227
New method
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19517 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-12 18:37:47 +00:00
Chris Lattner
2dad454af6
Fix sign extend to long. When coming from sbyte, we used to generate:
...
movsbl 4(%esp), %eax
movl %eax, %edx
sarl $7, %edx
Now we generate:
movsbl 4(%esp), %eax
movl %eax, %edx
sarl $31, %edx
Which is right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19515 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-12 18:19:52 +00:00
Reid Spencer
3bfbf4ea99
Shut up warnings with GCC 3.4.3 about uninitialized variables.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19512 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-12 14:53:45 +00:00
Chris Lattner
7944d9d995
Add an option to view the selection dags as they are generated.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19498 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-12 03:41:21 +00:00
Chris Lattner
c871e1d56f
Print the value types in the nodes of the graph
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19485 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 22:21:04 +00:00
Chris Lattner
f1fdacae8c
add an assertion, avoid creating copyfromreg/copytoreg pairs that are the
...
same for PHI nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19484 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 22:03:46 +00:00
Chris Lattner
7abf820182
Clear the whole array, always.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19482 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 20:25:26 +00:00
Chris Lattner
64da653ba9
Squelch optimized warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19475 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 17:46:49 +00:00
Chris Lattner
e1bd822ddb
Teach legalize to lower MEMSET/MEMCPY/MEMMOVE operations if the target
...
does not support them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19465 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 05:57:22 +00:00
Chris Lattner
4c633e82f6
Print new operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19464 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 05:57:01 +00:00
Chris Lattner
7041ee35ad
Turn memset/memcpy/memmove into the corresponding operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19463 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 05:56:49 +00:00
Chris Lattner
a8d9cc8705
shift X, 0 -> X
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19453 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 04:25:13 +00:00
Chris Lattner
e9c44cdf18
Print SelectionDAGs bottom up, include extra info in the node labels
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19447 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-11 00:34:33 +00:00
Chris Lattner
fc08d9c789
Add a marker for the graph root.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19445 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 23:52:04 +00:00
Chris Lattner
e0646b86e3
Put the operation name in each node, put the function name on the graph.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19444 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 23:26:00 +00:00
Chris Lattner
d75f19fa42
Split out SDNode::getOperationName into its own method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19443 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 23:25:25 +00:00
Chris Lattner
66328480bb
Implement initial selectiondag printing support. This gets us a nice
...
graph with no labels! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 23:08:40 +00:00
Chris Lattner
6b7598b995
Lower to the correct functions. This fixes FreeBench/fourinarow
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19436 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 21:02:37 +00:00
Chris Lattner
68dc310942
Implement a couple of more simplifications. This lets us codegen:
...
int test2(int * P, int* Q, int A, int B) {
return P+A == P;
}
into:
test2:
movl 4(%esp), %eax
movl 12(%esp), %eax
shll $2, %eax
cmpl $0, %eax
sete %al
movzbl %al, %eax
ret
instead of:
test2:
movl 4(%esp), %eax
movl 12(%esp), %ecx
leal (%eax,%ecx,4), %ecx
cmpl %eax, %ecx
sete %al
movzbl %al, %eax
ret
ICC is producing worse code:
test2:
movl 4(%esp), %eax #8.5
movl 12(%esp), %edx #8.5
lea (%edx,%edx), %ecx #9.9
addl %ecx, %ecx #9.9
addl %eax, %ecx #9.9
cmpl %eax, %ecx #9.16
movl $0, %eax #9.16
sete %al #9.16
ret #9.16
as is GCC (looks like our old code):
test2:
movl 4(%esp), %edx
movl 12(%esp), %eax
leal (%edx,%eax,4), %ecx
cmpl %edx, %ecx
sete %al
movzbl %al, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 02:03:02 +00:00
Chris Lattner
87ae6ae41c
Fix incorrect constant folds, fixing Stepanov after the SHR patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19429 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 01:16:03 +00:00
Chris Lattner
8136d1f8cb
Constant fold shifts, turning this loop:
...
.LBB_Z5test0PdS__3: # no_exit.1
fldl data(,%eax,8)
fldl 24(%esp)
faddp %st(1)
fstl 24(%esp)
incl %eax
movl $16000, %ecx
sarl $3, %ecx
cmpl %eax, %ecx
fstpl 16(%esp)
#FP_REG_KILL
jg .LBB_Z5test0PdS__3 # no_exit.1
into:
.LBB_Z5test0PdS__3: # no_exit.1
fldl data(,%eax,8)
fldl 24(%esp)
faddp %st(1)
fstl 24(%esp)
incl %eax
cmpl $2000, %eax
fstpl 16(%esp)
#FP_REG_KILL
jl .LBB_Z5test0PdS__3 # no_exit.1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19427 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 00:07:15 +00:00
Chris Lattner
5cdcc58d51
Add some folds for == and != comparisons. This allows us to
...
codegen this loop in stepanov:
no_exit.i: ; preds = %entry, %no_exit.i, %then.i, %_Z5checkd.exit
%i.0.0 = phi int [ 0, %entry ], [ %i.0.0, %no_exit.i ], [ %inc.0, %_Z5checkd.exit ], [ %inc.012, %then.i ] ; <int> [#uses=3]
%indvar = phi uint [ %indvar.next, %no_exit.i ], [ 0, %entry ], [ 0, %then.i ], [ 0, %_Z5checkd.exit ] ; <uint> [#uses=3]
%result_addr.i.0 = phi double [ %tmp.4.i.i, %no_exit.i ], [ 0.000000e+00, %entry ], [ 0.000000e+00, %then.i ], [ 0.000000e+00, %_Z5checkd.exit ] ; <double> [#uses=1]
%first_addr.0.i.2.rec = cast uint %indvar to int ; <int> [#uses=1]
%first_addr.0.i.2 = getelementptr [2000 x double]* %data, int 0, uint %indvar ; <double*> [#uses=1]
%inc.i.rec = add int %first_addr.0.i.2.rec, 1 ; <int> [#uses=1]
%inc.i = getelementptr [2000 x double]* %data, int 0, int %inc.i.rec ; <double*> [#uses=1]
%tmp.3.i.i = load double* %first_addr.0.i.2 ; <double> [#uses=1]
%tmp.4.i.i = add double %result_addr.i.0, %tmp.3.i.i ; <double> [#uses=2]
%tmp.2.i = seteq double* %inc.i, getelementptr ([2000 x double]* %data, int 0, int 2000) ; <bool> [#uses=1]
%indvar.next = add uint %indvar, 1 ; <uint> [#uses=1]
br bool %tmp.2.i, label %_Z10accumulateIPddET0_T_S2_S1_.exit, label %no_exit.i
To this:
.LBB_Z4testIPddEvT_S1_T0__1: # no_exit.i
fldl data(,%eax,8)
fldl 16(%esp)
faddp %st(1)
fstpl 16(%esp)
incl %eax
movl %eax, %ecx
shll $3, %ecx
cmpl $16000, %ecx
#FP_REG_KILL
jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i
instead of this:
.LBB_Z4testIPddEvT_S1_T0__1: # no_exit.i
fldl data(,%eax,8)
fldl 16(%esp)
faddp %st(1)
fstpl 16(%esp)
incl %eax
leal data(,%eax,8), %ecx
leal data+16000, %edx
cmpl %edx, %ecx
#FP_REG_KILL
jne .LBB_Z4testIPddEvT_S1_T0__1 # no_exit.i
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19425 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:52:51 +00:00
Jeff Cohen
fd161e964a
Fix VC++ compilation error
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19423 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:41:56 +00:00
Chris Lattner
ea946cdb1b
Print the DAG out more like a DAG in nested format.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19422 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:38:33 +00:00
Chris Lattner
49d24716a4
Print out nodes sorted by their address to make it easier to find them in a list.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19421 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:26:36 +00:00
Chris Lattner
abd2182875
Add a simple transformation. This allows us to compile one of the inner
...
loops in stepanov to this:
.LBB_Z5test0PdS__2: # no_exit.1
fldl data(,%eax,8)
fldl 24(%esp)
faddp %st(1)
fstl 24(%esp)
incl %eax
cmpl $2000, %eax
fstpl 16(%esp)
#FP_REG_KILL
jl .LBB_Z5test0PdS__2
instead of this:
.LBB_Z5test0PdS__2: # no_exit.1
fldl data(,%eax,8)
fldl 24(%esp)
faddp %st(1)
fstl 24(%esp)
incl %eax
movl $data, %ecx
movl %ecx, %edx
addl $16000, %edx
subl %ecx, %edx
movl %edx, %ecx
sarl $2, %ecx
shrl $29, %ecx
addl %ecx, %edx
sarl $3, %edx
cmpl %edx, %eax
fstpl 16(%esp)
#FP_REG_KILL
jl .LBB_Z5test0PdS__2
The old instruction selector produced:
.LBB_Z5test0PdS__2: # no_exit.1
fldl 24(%esp)
faddl data(,%eax,8)
fstl 24(%esp)
movl %eax, %ecx
incl %ecx
incl %eax
leal data+16000, %edx
movl $data, %edi
subl %edi, %edx
movl %edx, %edi
sarl $2, %edi
shrl $29, %edi
addl %edi, %edx
sarl $3, %edx
cmpl %edx, %ecx
fstpl 16(%esp)
#FP_REG_KILL
jl .LBB_Z5test0PdS__2 # no_exit.1
Which is even worse!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:09:57 +00:00
Chris Lattner
38d6be5d49
Fix a bug legalizing call instructions (make sure to remember all result
...
values), and eliminate some switch statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 19:43:23 +00:00
Chris Lattner
513e52ec4e
Fix a minor bug legalizing dynamic_stackalloc. This allows us to compile
...
std::__pad<wchar_t, std::char_traits<wchar_t> >::_S_pad(std::ios_base&, wchar_t, wchar_t*, wchar_t const*, int, int, bool)
from libstdc++
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 19:07:54 +00:00
Chris Lattner
fa404e8a76
Teach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19415 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 19:03:49 +00:00
Chris Lattner
ee749d7488
Handle static alloca arguments to PHI nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 01:16:24 +00:00
Chris Lattner
39ae362279
Use new interfaces to correctly lower varargs and return/frame address intrinsics.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19407 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 00:00:49 +00:00
Chris Lattner
64e14b1679
Add support for llvm.setjmp and longjmp. Only 3 SingleSource/UnitTests fail now.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19404 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 22:48:57 +00:00
Chris Lattner
e3304a3d24
Tighten up assertions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19397 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 20:35:13 +00:00
Chris Lattner
f26bc8ef48
Silence VS warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19384 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 19:52:31 +00:00
Chris Lattner
4e6c746899
Implement handling of most long operators through libcalls.
...
Fix a bug legalizing "ret (Val,Val)"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19375 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 19:27:05 +00:00
Chris Lattner
cf5734dddd
Adjust to changes in LowerCAllTo interfaces
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19374 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 19:26:18 +00:00
Chris Lattner
ae0aacb833
Add support for FP->INT conversions and back.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19369 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 08:08:56 +00:00
Chris Lattner
5d2c6c784b
Implement the 'store FPIMM, Ptr' -> 'store INTIMM, Ptr' optimization for
...
all targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19366 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 06:25:56 +00:00
Chris Lattner
623f70dd4c
1ULL << 64 is undefined, don't do it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19365 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 06:24:30 +00:00
Chris Lattner
7c68ec6b70
Fix a pointer invalidation problem. This fixes Generic/badarg6.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19361 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 23:32:00 +00:00
Chris Lattner
5351e9b172
Fold conditional branches on constants away.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19360 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 22:49:57 +00:00
Chris Lattner
4287d5e355
Fix a thinko in the reassociation code, fixing Generic/badlive.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19359 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 22:44:09 +00:00
Chris Lattner
b00a6425de
Add support for truncating integer casts from long.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 22:37:48 +00:00
Chris Lattner
8afc48e44a
Fix a bug in load expansion legalization and ret legalization. This fixes
...
CodeGen/Generic/select.ll:castconst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19357 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 22:28:47 +00:00
Chris Lattner
c7af17923e
Legalize unconditional branches too
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19356 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 22:12:08 +00:00
Chris Lattner
7cc4777a26
Implement support for long GEP indices on 32-bit archs and support for
...
int GEP indices on 64-bit archs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19354 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:56:57 +00:00
Chris Lattner
fd8c39b773
Simplify: truncate ({zero|sign}_extend (X))
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19353 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:56:24 +00:00
Chris Lattner
03c0cf822e
implement legalization of a bunch more operators.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19352 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:45:56 +00:00
Chris Lattner
fad71ebe1e
Fix another bug legalizing calls!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19350 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:35:32 +00:00
Chris Lattner
f44fd88e9c
Fix handling of dead PHI nodes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19349 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:34:19 +00:00
Chris Lattner
ebda942efc
Fix a bug legalizing calls
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19348 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:34:13 +00:00
Chris Lattner
62fd269c14
After legalizing a DAG, delete dead nodes to save space.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19346 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:09:37 +00:00
Chris Lattner
0e12e6e041
Implement RemoveDeadNodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19345 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 21:09:16 +00:00
Chris Lattner
c18ae4cb6a
Teach legalize how to handle condbranches
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19339 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 08:19:42 +00:00
Chris Lattner
1c08c714bb
Initial implementation of the SelectionDAGISel class. This contains most
...
of the code for lowering from LLVM code to a SelectionDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19331 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:47:53 +00:00
Chris Lattner
b75c12de67
This file is obsolete
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19330 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:47:23 +00:00
Chris Lattner
3e928bbd61
Initial implementation of the DAG legalization. This still has a long way
...
to go, but it does work for some non-trivial cases now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19329 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:47:09 +00:00
Chris Lattner
c3aae25116
Complete rewrite of the SelectionDAG class.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19327 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:46:32 +00:00
Chris Lattner
310968cbbb
First draft of new Target interface
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19324 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:44:53 +00:00
Reid Spencer
6cb21d443e
Change Library Names Not To Conflict With Others When Installed
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17286 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-27 23:18:45 +00:00
Reid Spencer
cac731ecbe
We won't use automake
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17155 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-22 03:35:04 +00:00
Reid Spencer
86d341b204
Initial automake generated Makefile template
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17136 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-18 23:55:41 +00:00
Reid Spencer
d96cb6eaa0
Update to reflect changes in Makefile rules.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16950 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-13 11:46:52 +00:00
Reid Spencer
9f41a5fe85
Initial version of automake Makefile.am file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16885 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10 20:43:57 +00:00
Misha Brukman
6a134dedf6
Hyphenate target-(in)dependent for more tasty grammar goodness (tm)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16854 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08 19:43:31 +00:00
Reid Spencer
954da37bb4
Add #include <iostream> since Value.h does not #include it any more.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14622 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-04 12:19:56 +00:00
Chris Lattner
f70c22b019
Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14201 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-17 18:19:28 +00:00
Chris Lattner
e25738cab6
Finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13948 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 04:28:06 +00:00
Chris Lattner
fd0f7b1131
Fix a trivial but blatant bug
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13947 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 03:57:43 +00:00
Brian Gaeke
d0fde30ce8
Put all LLVM code into the llvm namespace, as per bug 109.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11 22:41:34 +00:00
John Criswell
e488e9360b
Added LLVM copyright notice to Makefiles.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9312 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 22:26:57 +00:00
John Criswell
b576c94c15
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 19:43:21 +00:00
Chris Lattner
79ba7c1aee
rename selection directory and library to SelectionDAG
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7877 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-15 04:55:22 +00:00
Chris Lattner
7dc97ff180
Add a bunch of new node types, etc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7875 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-15 04:53:16 +00:00
Chris Lattner
78ec311bd5
Initial checkin of SelectionDAG implementation. This is still rough and
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unfinished
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7717 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-11 14:57:33 +00:00