Chris Lattner
c95b5604e0
Fix a bug in previous checkin
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19769 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 03:19:13 +00:00
Chris Lattner
4454253923
Add a new method, refactored out of fpcmp
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19766 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 03:13:43 +00:00
Andrew Lenharth
304d0f3076
Let me introduce you to the early stages of the llvm backend for the alpha processor
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19764 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 23:41:55 +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
Jeff Cohen
5fb6ed4ae6
Use binary mode for reading/writing bytecode files
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19751 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 17:36:17 +00:00
Jeff Cohen
c690cc0465
Fix destroyDirectory bug
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19746 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 16:28:33 +00:00
Chris Lattner
5037a15910
Implicitly defined registers can clobber callee saved registers too!
...
This fixes the return-address-not-being-saved problem in the Alpha backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19741 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 00:49:16 +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.
...
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
45f57b8ee3
Handle comparisons of gep instructions that have different typed indices
...
as long as they are the same size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19734 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 23:06:49 +00:00
Chris Lattner
fb0f53f9c1
Speed up folding operations into loads.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19733 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 21:43:02 +00:00
Chris Lattner
67b1c3c404
The ever-important vanity pass name :)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19731 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 21:35:14 +00:00
Chris Lattner
4e7dd8f7c4
If the interpreter tries to execute an external function, kill it. Of course
...
since we are dirty, special case __main. This should fix the infinite loop
horrible stuff that happens on linux-alpha when configuring llvm-gcc. It
might also help cygwin, who knows??
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 19:59:37 +00:00
Chris Lattner
b62e1e296e
Fix a FIXME: realize that argument stores are all independent (don't alias)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19728 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-21 19:46:38 +00:00
Chris Lattner
a93ec3ebfb
Unary token factor nodes are unneeded.
...
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
19ad0620bc
Implement ADD_PARTS/SUB_PARTS so that 64-bit integer add/sub work. This
...
fixes most of the remaining llc-beta failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19716 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 18:53:00 +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
353c3e4981
Add missing entry.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19712 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 17:32:28 +00:00
Chris Lattner
bf52d49f36
Fix a crash compiling 134.perl.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19711 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-20 16:50:16 +00:00
Chris Lattner
2c49f27955
Support targets that do not use i8 shift amounts.
...
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
6fb5a4a5f8
Add two optimizations. The first folds (X+Y)-X -> Y
...
The second folds operations into selects, e.g. (select C, (X+Y), (Y+Z))
-> (Y+(select C, X, Z)
This occurs a few times across spec, e.g.
select add/sub
mesa: 83 0
povray: 5 2
gcc 4 2
parser 0 22
perlbmk 13 30
twolf 0 3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 21:50:18 +00:00
Chris Lattner
3ca6a2c72c
Add an assertion that would have made more sense to duraid
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19704 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 21:32:07 +00:00
Chris Lattner
3d9dffc586
Add support for targets that pass args in registers to calls.
...
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.
...
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.
...
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).
...
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
c3c021bcad
Fix a problem where were were literally selecting for INCREASED register
...
pressure, not decreases register pressure. Fix problem where we accidentally
swapped the operands of SHLD, which caused fourinarow to fail. This fixes
fourinarow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19697 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 17:24:34 +00:00
Chris Lattner
2a6e163edc
Just in case, handle something that is both a use and a def.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19696 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 17:11:51 +00:00
Chris Lattner
d45be36965
When an instruction moves, make sure to update the VarInfo::Kills list as
...
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19695 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 17:09:15 +00:00
Chris Lattner
a76f04828a
When commuting these instructions, make sure to actually swap the operands too.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19694 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 16:55:52 +00:00
Chris Lattner
7d719c3cd8
Fix 'raise' to work with packed types. Patch by Morten Ofstad.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19693 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 16:16:35 +00:00
Chris Lattner
4053b1e30b
Implement Regression/CodeGen/X86/rotate.ll: emit rotate instructions (which
...
typically cost 1 cycle) instead of shld/shrd instruction (which are typically
6 or more cycles). This also saves code space.
For example, instead of emitting:
rotr:
mov %EAX, DWORD PTR [%ESP + 4]
mov %CL, BYTE PTR [%ESP + 8]
shrd %EAX, %EAX, %CL
ret
rotli:
mov %EAX, DWORD PTR [%ESP + 4]
shrd %EAX, %EAX, 27
ret
Emit:
rotr32:
mov %CL, BYTE PTR [%ESP + 8]
mov %EAX, DWORD PTR [%ESP + 4]
ror %EAX, %CL
ret
rotli32:
mov %EAX, DWORD PTR [%ESP + 4]
ror %EAX, 27
ret
We also emit byte rotate instructions which do not have a sh[lr]d counterpart
at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19692 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 08:07:05 +00:00
Chris Lattner
40ff633b05
Add rotate instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19690 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 07:50:03 +00:00
Chris Lattner
30ea1e9411
Match 16-bit shld/shrd instructions as well, implementing shift-double.llx:test5
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19689 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 07:37:26 +00:00
Chris Lattner
0df53d22c3
Improve coverage of the X86 instruction set by adding 16-bit shift doubles.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 07:31:24 +00:00
Chris Lattner
41e431ba04
Teach the code generator that shrd/shld is commutable if it has an immediate.
...
This allows us to generate this:
foo:
mov %EAX, DWORD PTR [%ESP + 4]
mov %EDX, DWORD PTR [%ESP + 8]
shld %EDX, %EDX, 2
shl %EAX, 2
ret
instead of this:
foo:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
mov %EDX, %EAX
shrd %EDX, %ECX, 30
shl %EAX, 2
ret
Note the magically transmogrifying immediate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19686 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 07:11:01 +00:00
Chris Lattner
c71d6949b9
Use the TargetInstrInfo::commuteInstruction method to commute instructions
...
instead of doing it manually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19685 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 07:08:42 +00:00
Chris Lattner
167b10cba4
Finegrainify namespacification
...
Add default impl of commuteInstruction
Add notes about ugly V9 code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19684 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 06:53:34 +00:00
Chris Lattner
8571637ee9
Codegen long >> 2 to this:
...
foo:
mov %EAX, DWORD PTR [%ESP + 4]
mov %EDX, DWORD PTR [%ESP + 8]
shrd %EAX, %EDX, 2
sar %EDX, 2
ret
instead of this:
test1:
mov %ECX, DWORD PTR [%ESP + 4]
shr %ECX, 2
mov %EDX, DWORD PTR [%ESP + 8]
mov %EAX, %EDX
shl %EAX, 30
or %EAX, %ECX
sar %EDX, 2
ret
and long << 2 to this:
foo:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
*** mov %EDX, %EAX
shrd %EDX, %ECX, 30
shl %EAX, 2
ret
instead of this:
foo:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, %EAX
shr %ECX, 30
mov %EDX, DWORD PTR [%ESP + 8]
shl %EDX, 2
or %EDX, %ECX
shl %EAX, 2
ret
The extra copy (marked ***) can be eliminated when I teach the code generator
that shrd32rri8 is really commutative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19681 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 06:18:43 +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
009b55b6f6
X86 shifts mask the amount.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 03:36:30 +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.
...
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