Chris Lattner
9acddcd07e
add a note, I have no idea how important this is.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25907 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 19:16:34 +00:00
Chris Lattner
1bac941019
implemented, testcase here: test/Regression/CodeGen/X86/compare-add.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25899 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 06:36:48 +00:00
Evan Cheng
8b6e4e6e3e
Update.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25896 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 02:40:17 +00:00
Evan Cheng
d25e9e8294
Fix a erroneous comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25894 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:28:23 +00:00
Chris Lattner
4d7db40ab1
more notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25890 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:38:08 +00:00
Evan Cheng
bda54cdd47
Tell codegen MOVAPSrr and MOVAPDrr are copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25889 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:03:16 +00:00
Evan Cheng
b1b4e86a02
Added SSE entries to foldMemoryOperand().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25888 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:02:25 +00:00
Evan Cheng
78376d59ab
Rearrange code to my liking. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25887 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 23:01:57 +00:00
Chris Lattner
3e2b94a171
another note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25883 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 21:44:48 +00:00
Nate Begeman
750ac1bdfa
Fix some of the stuff in the PPC README file, and clean up legalization
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of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 07:19:44 +00:00
Chris Lattner
1f7c6302be
add a note, I'll take care of this after nate commits his big patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25873 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:40:32 +00:00
Evan Cheng
3c55c54a87
- Use xor to clear integer registers (set R, 0).
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- Added a new format for instructions where the source register is implied
and it is same as the destination register. Used for pseudo instructions
that clear the destination register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25872 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:13:50 +00:00
Evan Cheng
214a79423f
Remove another entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25871 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 06:08:48 +00:00
Chris Lattner
3e1d5e5ea3
Another regression from the pattern isel
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25867 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:44:25 +00:00
Evan Cheng
760df29881
Return's chain should be matching either the chain produced by the
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value or the chain going into the load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25863 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 01:19:32 +00:00
Evan Cheng
0d084c9e4a
When folding a load into a return of SSE value, check the chain to
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ensure the memory location has not been clobbered.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25861 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 00:20:21 +00:00
Evan Cheng
4ccf4c0d0b
Remove an item. It's done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25860 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 00:15:53 +00:00
Evan Cheng
0e8671bf4a
Be smarter about whether to store the SSE return value in memory. If
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it is already available in memory, do a fld directly from there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25859 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 23:19:54 +00:00
Chris Lattner
bb1d528aa6
turning these into 'adds' would require extra copies
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25858 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:59:46 +00:00
Evan Cheng
223547ab31
- Allow XMM load (for scalar use) to be folded into ANDP* and XORP*.
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- Use XORP* to implement fneg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:28:30 +00:00
Evan Cheng
598463fde4
Remove entries on fabs and fneg. These are done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25856 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 22:26:21 +00:00
Chris Lattner
259e97cc72
* Fix 80-column violations
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* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25854 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 19:43:35 +00:00
Evan Cheng
ef6ffb17c7
Added custom lowering of fabs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25831 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 03:14:29 +00:00
Chris Lattner
8e38ae60c7
Another high-prio selection performance bug
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25828 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 02:10:06 +00:00
Chris Lattner
594086d494
more mumbling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25826 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 00:45:37 +00:00
Chris Lattner
bdde465bcf
add some notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25825 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 00:20:38 +00:00
Evan Cheng
6dfa999c01
Don't generate complex sequence for SETOLE, SETOLT, SETULT, and SETUGT. Flip
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the order of the compare operands and generate SETOGT, SETOGE, SETUGE, and
SETULE instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25824 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 23:41:35 +00:00
Evan Cheng
02568ff48d
i64 -> f32, f32 -> i64 and some clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25818 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 22:13:22 +00:00
Evan Cheng
6dab05363f
Always use FP stack instructions to perform i64 to f64 as well as f64 to i64
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conversions. SSE does not have instructions to handle these tasks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25817 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 08:02:57 +00:00
Chris Lattner
c6fd6cd65c
Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25803 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 04:09:27 +00:00
Chris Lattner
87c890a9c2
adjust prototype
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 03:49:07 +00:00
Chris Lattner
c7097afe51
add another note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25789 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 09:46:06 +00:00
Chris Lattner
5164a313e0
add some performance notes from looking at sgefa
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25788 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 09:42:20 +00:00
Chris Lattner
6a28456e18
add a high-priority SSE issue from sgefa
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25787 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 09:14:47 +00:00
Chris Lattner
b638cd89db
add a missed optimization
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25786 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 09:08:15 +00:00
Reid Spencer
2ce5b263ba
Add a note about lowering llvm.memset, llvm.memcpy, and llvm.memmove to a
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few stores under certain conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25777 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:48:25 +00:00
Chris Lattner
0fc9c26e7d
remove now-dead code, the legalizer takes care of this for us
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:45:31 +00:00
Chris Lattner
44d9b9bb86
The FP stack doesn't support UNDEF, ask the legalizer to legalize it
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instead of lying and saying we have it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25775 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:44:22 +00:00
Chris Lattner
a54aa94197
Targets all now request ConstantFP to be legalized into TargetConstantFP.
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'fpimm' in .td files is now TargetConstantFP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25771 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:26:08 +00:00
Jeff Cohen
b8643ac476
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25760 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 03:45:35 +00:00
Jeff Cohen
c4013d6772
Flesh out AMD family/models.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25755 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 20:30:18 +00:00
Jeff Cohen
216d281d0a
Correctly determine CPU vendor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25754 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 19:48:34 +00:00
Jeff Cohen
a349640b7f
Use union instead of reinterpret_cast.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 18:47:32 +00:00
Jeff Cohen
7617717496
Fix recognition of Intel CPUs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 18:38:20 +00:00
Chris Lattner
c2fad16155
Is64Bit reflects the capability of the chip, not an aspect of the target os
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25749 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 18:23:48 +00:00
Chris Lattner
dabbc98396
Fix a bunch of JIT failures with the new isel
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25748 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 18:19:37 +00:00
Jeff Cohen
41adb0d679
Improve X86 subtarget support for Windows and AMD.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25747 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 18:09:06 +00:00
Chris Lattner
6b2469c1ad
silence a warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25745 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 10:34:47 +00:00
Chris Lattner
1e39a15b42
make this work on non-native hosts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25734 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 06:05:41 +00:00
Evan Cheng
d41e9e5e7a
A bit of wisdom from Chris on the last entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25715 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27 22:54:32 +00:00