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Author SHA1 Message Date
Chris Lattner
f1577014dd replace a loop with a constant time check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45875 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:55:10 +00:00
Chris Lattner
6e8410abf1 another minor datastructure tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45874 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:47:45 +00:00
Chris Lattner
a10145fdf6 start using smallvector to avoid vector heap thrashing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:43:58 +00:00
Chris Lattner
8874628e30 add operator==/!= to smallvector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:42:02 +00:00
Chris Lattner
5080f4d991 rename MachineInstr::setInstrDescriptor -> setDesc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45871 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:10:50 +00:00
Chris Lattner
f9b3f37abc remove xchg and shift-reg-by-1 instructions, which are dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45870 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:00:50 +00:00
Chris Lattner
047ad94fc0 add a note, remove a done deed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45869 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 18:00:13 +00:00
Arnold Schwaighofer
a51cf0f074 hrm - correct spelling. 
Actually were not riding any arguments. Sadly there is no semantic spell checker that is going to safe you from such a mistake.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 17:10:15 +00:00
Arnold Schwaighofer
c8ab8cde43 Improve tail call optimized call's argument lowering. Before this 
commit all arguments where moved to the stack slot where they would
reside on a normal function call before the lowering to the tail call
stack slot. This was done to prevent arguments overwriting each other.
Now only arguments sourcing from a FORMAL_ARGUMENTS node or a
CopyFromReg node with virtual register (could also be a caller's
argument) are lowered indirectly.

 --This line, and those below, will be ignored--

M    X86/X86ISelLowering.cpp
M    X86/README.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45867 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 16:49:42 +00:00
Arnold Schwaighofer
719eb02255 Correct a copy and paste error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 14:34:56 +00:00
Evan Cheng
588c6f8e6c Some C backend ByVal parameter attribute support. Not yet complete. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 09:12:49 +00:00
Evan Cheng
90e9d4e013 Rename Int_CVTSI642SSr* to Int_CVTSI2SS64r* for naming consistency and remove unused instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45861 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 07:37:44 +00:00
Chris Lattner
a731c9fac9 more flags set right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45860 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 07:18:17 +00:00
Chris Lattner
f77e037309 add some missing flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:59:07 +00:00
Chris Lattner
3dab223dc9 don't include loopinfo.h from this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45858 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:30:04 +00:00
Chris Lattner
fadcd4e60b Move typedef of loop to top of the file where it is more obvious. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:29:42 +00:00
Chris Lattner
131bd2ecf7 Fix 80 col violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:27:42 +00:00
Chris Lattner
47507ded8c document the byval parameter attribute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45855 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:20:47 +00:00
Chris Lattner
497b7e97c0 add some notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:17:47 +00:00
Chris Lattner
c93adca358 When inlining a functino with a byval argument, make an explicit 
copy of it in case the callee modifies the struct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45853 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:09:30 +00:00
Evan Cheng
681d2b8266 A couple of obvious off-by-one bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45852 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 03:07:46 +00:00
Scott Michel
9de5d0dd42 More CellSPU refinement and progress: 
- Cleaned up custom load/store logic, common code is now shared [see note
  below], cleaned up address modes

- More test cases: various intrinsics, structure element access (load/store
  test), updated target data strings, indirect function calls.

Note: This patch contains a refactoring of the LoadSDNode and StoreSDNode
structures: they now share a common base class, LSBaseSDNode, that
provides an interface to their common functionality. There is some hackery
to access the proper operand depending on the derived class; otherwise,
to do a proper job would require finding and rearranging the SDOperands
sent to StoreSDNode's constructor. The current refactor errs on the
side of being conservatively and backwardly compatible while providing
functionality that reduces redundant code for targets where loads and
stores are custom-lowered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45851 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 02:53:15 +00:00
Evan Cheng
c37ab63df7 Allow parameter attributes on varargs function parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 02:13:09 +00:00
Dale Johannesen
12591d70f6 Weak zeroes don't go in bss on Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 01:59:45 +00:00
Dale Johannesen
c7406ae773 Weak things initialized to 0 don't go in bss on Darwin. 
Cosmetic changes to spacing to match gcc (some dejagnu
tests actually care).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45848 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 00:54:37 +00:00
Chris Lattner
a22edc82ca Simplify the side effect stuff a bit more and make licm/sinking 
both work right according to the new flags.

This removes the TII::isReallySideEffectFree predicate, and adds
TII::isInvariantLoad. 

It removes NeverHasSideEffects+MayHaveSideEffects and adds
UnmodeledSideEffects as machine instr flags.  Now the clients
can decide everything they need.

I think isRematerializable can be implemented in terms of the
flags we have now, though I will let others tackle that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45843 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 23:08:24 +00:00
Chris Lattner
2445888208 Clamp down on sinking of lots of instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45841 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 22:35:15 +00:00
Chris Lattner
b38bec222c IMPLICIT_USE and IMPLICIT_DEF are dead, remove them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45838 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 19:27:54 +00:00
Chris Lattner
8372601521 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45837 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 18:25:41 +00:00
Duncan Sands
007f9847c4 Output sinl for a long double FSIN node, not sin. 
Likewise fix up a bunch of other libcalls.  While
there I remove NEG_F32 and NEG_F64 since they are
not used anywhere.  This fixes 9 Ada ACATS failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45833 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 10:28:30 +00:00
Evan Cheng
8480293f41 Only remat loads from immutable stack slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45831 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 08:24:38 +00:00
Evan Cheng
a07cec9e24 Simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45830 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 08:22:10 +00:00
Chris Lattner
ba7e756c22 Start inferring side effect information more aggressively, and fix many bugs in the 
x86 backend where instructions were not marked maystore/mayload, and perf issues where
instructions were not marked neverHasSideEffects.  It would be really nice if we could
write patterns for copy instructions.

I have audited all the x86 instructions down to MOVDQAmr.  The flags on others and on
other targets are probably not right in all cases, but no clients currently use this
info that are enabled by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45829 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 07:59:24 +00:00
Evan Cheng
1778a15901 Clearify the meaning of immutable StackObject. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 07:19:43 +00:00
Chris Lattner
811281e788 Fix a crash on code like: let x = 1 {x 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45827 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 07:01:53 +00:00
Chris Lattner
36fe6d2f80 rename X86InstrX86-64.td -> X86Instr64bit.td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45826 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:50:42 +00:00
Chris Lattner
b8f217fa7e add SDNPSideEffect node property declaration 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45825 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:48:23 +00:00
Chris Lattner
dd41527a7d remove explicit sets of 'neverHasSideEffects' that can now be 
inferred from the instr patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45824 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:45:39 +00:00
Chris Lattner
214884ba03 if an instr lacks a pattern, assume it has side effects (unless never has s-e is true). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45823 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:40:54 +00:00
Chris Lattner
bc0b9f70ae start inferring 'no side effects'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45822 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:39:30 +00:00
Chris Lattner
9b37aaf04c get def use info more correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45821 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:12:37 +00:00
Chris Lattner
8926038785 Infer mayload 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45819 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 04:44:48 +00:00
Chris Lattner
8947dd539e add SDNPMayLoad to the 'load' sdnode definition. This is enough to get all the x86 
instructions (with patterns) that load memory marked, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 04:44:32 +00:00
Chris Lattner
710e995889 realize that instructions who match intrinsics that read memory read memory. 
Also, instructions with any nodes that are SDNPMayLoad also read memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45817 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 04:38:57 +00:00
Chris Lattner
8794390406 verify that the frame index is immutable before remat'ing (still disabled) 
or being side-effect free.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45816 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 04:16:31 +00:00
Owen Anderson
c95f075c43 Don't use LiveVariables::VarInfo::DefInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45815 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 03:12:54 +00:00
Evan Cheng
9c9cec4372 Codegen improvement has reduced one spill. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 02:54:40 +00:00
Evan Cheng
e70bb59840 Mark byval parameter stack objects mutable for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45813 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 02:24:25 +00:00
Evan Cheng
0d0e1b58cb Add a isImmutable bit to StackObject. Fixed stack objects are immutable (in the function) unless specified otherwise. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45812 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 02:18:37 +00:00
Dale Johannesen
038129dd58 Emit unused EH frames for weak definitions on Darwin, 
because assembler/linker can't cope with weak absolutes.
PR 1880.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45811 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 02:03:30 +00:00