Chris Lattner
cf8ba696b3
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41178 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20 02:14:33 +00:00
Chris Lattner
ace2e8ad0c
expand a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41021 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 18:19:07 +00:00
Chris Lattner
384f4a94f8
With evan's explicit flag representation, hopefully we will finally be
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able to 3-addressify away stuff like this:
movl %ecx, %eax
decl %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41020 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 18:16:46 +00:00
Christopher Lamb
a1eb155e52
Use subregs to improve any_extend code generation when feasible.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41013 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10 22:22:41 +00:00
Christopher Lamb
c59e52108b
Increase efficiency of sign_extend_inreg by using subregisters for truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41010 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10 21:48:46 +00:00
Christopher Lamb
6f41435879
Edit README in light of previous LEA16 commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41009 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10 21:29:05 +00:00
Chris Lattner
107f54a002
add an observation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40772 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-03 00:17:42 +00:00
Evan Cheng
7e7bbf8271
Only adjust esp around calls in presence of alloca.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40028 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 00:42:05 +00:00
Evan Cheng
b5cd24973c
New entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39998 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-18 08:21:49 +00:00
Evan Cheng
698b63862c
Update.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39977 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-17 18:39:45 +00:00
Chris Lattner
60c7a136f3
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37239 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-18 20:18:14 +00:00
Chris Lattner
0f1621bb4c
add some notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36965 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-10 00:08:04 +00:00
Chris Lattner
0258011bb9
move CodeGen/X86/overlap-add.ll here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36799 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-05 22:10:24 +00:00
Chris Lattner
56ecbf3013
SSE4 is apparently public now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36185 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 00:02:37 +00:00
Chris Lattner
7c162645ae
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36028 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 23:06:09 +00:00
Chris Lattner
b062000c23
done
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35884 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 05:34:00 +00:00
Chris Lattner
bae3bd7c19
new micro optzn
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35867 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-10 21:14:01 +00:00
Chris Lattner
8ceb0fd2d3
make a new missing features section
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35637 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 23:41:34 +00:00
Bill Wendling
92ca81601c
Updated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35634 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 23:37:20 +00:00
Chris Lattner
6ef3307062
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35435 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-28 18:17:19 +00:00
Dale Johannesen
aceaf5d26e
add generation of unnecessary push/pop around calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35241 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-21 21:16:39 +00:00
Evan Cheng
4485d3897b
Notes about codegen issues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35107 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-14 21:03:53 +00:00
Chris Lattner
9b6f57c303
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34837 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 05:04:52 +00:00
Chris Lattner
48d3c108b6
more notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34204 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 21:20:26 +00:00
Chris Lattner
08ba1de2d2
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34202 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 20:26:34 +00:00
Evan Cheng
6a9a76508c
This is done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34072 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-08 23:53:38 +00:00
Chris Lattner
66bb5b5db6
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33423 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-21 07:03:37 +00:00
Chris Lattner
7ace299bdc
add some notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33228 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-15 06:25:39 +00:00
Anton Korobeynikov
7f70559bc4
* PIC codegen for X86/Linux has been implemented
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* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33136 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 19:20:47 +00:00
Chris Lattner
ab4be63287
new note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32945 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 01:30:45 +00:00
Chris Lattner
c9d3471d07
fix testcase. It's not safe to strictly evaluate a load that should be lazy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32842 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-03 19:12:31 +00:00
Chris Lattner
b9853ebc7b
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32741 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-22 01:03:22 +00:00
Chris Lattner
9f09fa2900
Update note, with the SROA change, we now produce:
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_pairtest:
movl 8(%esp), %eax
movl 4(%esp), %ecx
movd %eax, %xmm0
movd %ecx, %xmm1
addss %xmm0, %xmm1
movl 12(%esp), %eax
movss %xmm1, (%eax)
ret
instead of:
_pairtest:
subl $12, %esp
movl 20(%esp), %eax
movl %eax, 4(%esp)
movl 16(%esp), %eax
movl %eax, (%esp)
movss (%esp), %xmm0
addss 4(%esp), %xmm0
movl 24(%esp), %eax
movss %xmm0, (%eax)
addl $12, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32427 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11 01:20:25 +00:00
Evan Cheng
ead1b801e2
New entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31976 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 19:59:25 +00:00
Chris Lattner
20ddd4a7ae
it would be nice of ctlz were lowered to bsf etc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 08:08:46 +00:00
Evan Cheng
a8d39be75b
These are done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31649 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-10 22:03:35 +00:00
Chris Lattner
ecb8d06356
this part implemented.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31122 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-22 21:40:12 +00:00
Chris Lattner
15bdc96c5b
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30921 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12 22:01:26 +00:00
Chris Lattner
6e1f1fdd35
ugly codegen
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30769 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06 17:39:34 +00:00
Evan Cheng
abc346ceda
Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30763 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-06 08:21:07 +00:00
Chris Lattner
b13f83eb23
implemented
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30559 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 06:14:54 +00:00
Chris Lattner
60e32b0776
Fit in 80-cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30556 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-21 05:46:00 +00:00
Chris Lattner
7e932de7f5
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 06:32:10 +00:00
Chris Lattner
f73fb88688
add a note. Our 64-bit shifts are ~30% slower than gcc's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30457 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-18 05:36:54 +00:00
Anton Korobeynikov
bcb9770efe
Added some eye-candy for Subtarget type checking
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Added X86 StdCall & FastCall calling conventions. Codegen will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30446 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-17 20:25:45 +00:00
Chris Lattner
88640b5ecd
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30406 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-16 03:30:19 +00:00
Chris Lattner
08c33011d1
add note about switch lowering
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30308 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-13 23:37:16 +00:00
Chris Lattner
d1468d3332
new note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30286 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-13 04:19:50 +00:00
Chris Lattner
95af34e33f
new note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30285 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-13 03:54:54 +00:00
Chris Lattner
f95705163f
Compile X > -1 -> text X,X; js dest
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This implements CodeGen/X86/jump_sign.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30283 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-13 03:22:10 +00:00