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Author SHA1 Message Date
Duncan Sands
7414cc131b When turning a call to a bitcast function into a direct call, 
if this becomes a varargs call then deal correctly with any
parameter attributes on the newly vararg call arguments.

llvm-svn: 45931
 2008-01-13 08:02:44 +00:00
Chris Lattner
a20247cd7b new testcase for rdar://5685492 
llvm-svn: 45918
 2008-01-13 00:19:57 +00:00
Chris Lattner
7fa87a190a improve cygwin compatibility, patch by Sam Bishop 
llvm-svn: 45917
 2008-01-12 22:54:07 +00:00
Chris Lattner
8b29caac2c clarify a note 
llvm-svn: 45914
 2008-01-12 18:58:46 +00:00
Evan Cheng
a5183224b0 Add hasByValArgument() to test if a call instruction has byval argument(s). 
llvm-svn: 45913
 2008-01-12 18:57:32 +00:00
Chris Lattner
d90840eddc we don't have to make an explicit copy of a byval argument when 
inlining a function if we know that the function does not write
to *any* memory.  This implements test/Transforms/Inline/byval2.ll

llvm-svn: 45912
 2008-01-12 18:54:29 +00:00
Evan Cheng
1e7cbf32c2 Indirect call with byval parameter requires a cast first. 
llvm-svn: 45911
 2008-01-12 18:53:07 +00:00
Duncan Sands
3b617cbe30 Be more liberal in what parameter attributes are 
allowed on the vararg arguments of a call.

llvm-svn: 45909
 2008-01-12 16:42:01 +00:00
Chris Lattner
fb5876f0be Allow clients to specify the inline threshold when creating 
the inliner pass.  Patch by Robert Zeh.

llvm-svn: 45903
 2008-01-12 06:49:13 +00:00
Chris Lattner
e1bd3e1e72 Add support for NetBSD, patch by Krister Walfridsson! 
llvm-svn: 45902
 2008-01-12 06:46:09 +00:00
Evan Cheng
01ee195d38 Add -disable-lto optimization. 
llvm-svn: 45900
 2008-01-12 04:27:18 +00:00
Chris Lattner
c23b7b79fa this actually does pass with 4.0 
llvm-svn: 45899
 2008-01-12 01:45:22 +00:00
Evan Cheng
08584fc86a Code clean up. 
llvm-svn: 45898
 2008-01-12 01:08:07 +00:00
Evan Cheng
2e84453e5b ByVal arguments are passed on stack. Make sure to allocate a slot using size and alignment information on the parameter attribute. 
llvm-svn: 45897
 2008-01-12 01:07:41 +00:00
Chris Lattner
5e112f44c8 fix a wordo that gordon noticed :) 
llvm-svn: 45896
 2008-01-12 00:53:16 +00:00
Chris Lattner
0242c393d1 Any x86 instruction that reads from an invariant location is invariant. 
This allows us to sink things like:
	cvtsi2sd	32(%esp), %xmm1
when reading from the argument area, for example.

llvm-svn: 45895
 2008-01-12 00:35:08 +00:00
Chris Lattner
efa13b2edd implement support for sinking a load out the bottom of a block that 
has no stores between the load and the end of block.  This works 
great and sinks hundreds of stores, but we can't turn it on because
machineinstrs don't have volatility information and we don't want to
sink volatile stores :(

llvm-svn: 45894
 2008-01-12 00:17:41 +00:00
Chris Lattner
433aca5066 remove some incorrect classof's. 
llvm-svn: 45893
 2008-01-11 23:25:16 +00:00
Duncan Sands
6f49217a5e When DAE drops the varargs part of a function, ensure any 
attributes on the vararg call arguments are also dropped.

llvm-svn: 45892
 2008-01-11 23:13:45 +00:00
Evan Cheng
438d36bf7d More cbe byval fixes. 
llvm-svn: 45891
 2008-01-11 23:10:11 +00:00
Chris Lattner
3cc116abce llvm-g++ 4.0 has completely different code for this warning, 
just xfail it.

llvm-svn: 45890
 2008-01-11 23:06:56 +00:00
Chris Lattner
e330f0fe21 new testcase 
llvm-svn: 45888
 2008-01-11 23:04:14 +00:00
Duncan Sands
e55a5806ac Do not allow attributes beyond a function's last 
parameter, even if it is a varargs function.  Do
allow attributes on the varargs part of a call,
but not beyond the last argument.  Only allow
selected attributes to be on the varargs part of
a call (currently only 'byval' is allowed).  The
reasoning here is that most attributes, eg inreg,
simply make no sense here.

llvm-svn: 45887
 2008-01-11 22:36:48 +00:00
Chris Lattner
a1246ba8ed Teach argpromote to ruthlessly hack small byval structs when it can 
get away with it, which exposes opportunities to eliminate the memory
objects entirely.  For example, we now compile byval.ll to:

define internal void @f1(i32 %b.0, i64 %b.1) {
entry:
	%tmp2 = add i32 %b.0, 1		; <i32> [#uses=0]
	ret void
}

define i32 @main() nounwind  {
entry:
	call void @f1( i32 1, i64 2 )
	ret i32 0
}

This seems like it would trigger a lot for code that passes around small
structs (e.g. SDOperand's or _Complex)...

llvm-svn: 45886
 2008-01-11 22:31:41 +00:00
Duncan Sands
41029353f9 Two occurrences on one line count as one... 
llvm-svn: 45885
 2008-01-11 21:46:24 +00:00
Duncan Sands
d99973b822 If there are attributes on the varargs part of a 
call, don't discard them.

llvm-svn: 45884
 2008-01-11 21:23:39 +00:00
Scott Michel
5afa19350b More CellSPU refinements: 
- struct_2.ll: Completely unaligned load/store testing

- call_indirect.ll, struct_1.ll: Add test lines to exercise
   X-form [$reg($reg)] addressing

At this point, loads and stores should be under control (he says
in an optimistic tone of voice.)

llvm-svn: 45882
 2008-01-11 21:01:19 +00:00
Dale Johannesen
8ca78844b0 Disable for now. 
llvm-svn: 45881
 2008-01-11 20:47:33 +00:00
Chris Lattner
8644bdca87 Use smallptrset instead of std::set for efficiency. 
llvm-svn: 45878
 2008-01-11 19:36:30 +00:00
Chris Lattner
44aaf42d14 a byval argument is guaranteed to be valid to load. 
llvm-svn: 45877
 2008-01-11 19:34:32 +00:00
Chris Lattner
129a0e4f7d Update this code to use eraseFromParent where possible. Compute 
whether an argument is byval and pass into isSafeToPromoteArgument.

llvm-svn: 45876
 2008-01-11 19:20:39 +00:00
Chris Lattner
85a0b511cc replace a loop with a constant time check. 
llvm-svn: 45875
 2008-01-11 18:55:10 +00:00
Chris Lattner
c9666b967f another minor datastructure tweak. 
llvm-svn: 45874
 2008-01-11 18:47:45 +00:00
Chris Lattner
a6b0783f14 start using smallvector to avoid vector heap thrashing. 
llvm-svn: 45873
 2008-01-11 18:43:58 +00:00
Chris Lattner
89d996afce add operator==/!= to smallvector. 
llvm-svn: 45872
 2008-01-11 18:42:02 +00:00
Chris Lattner
0293fca6d8 rename MachineInstr::setInstrDescriptor -> setDesc 
llvm-svn: 45871
 2008-01-11 18:10:50 +00:00
Chris Lattner
a83f66d1bb remove xchg and shift-reg-by-1 instructions, which are dead. 
llvm-svn: 45870
 2008-01-11 18:00:50 +00:00
Chris Lattner
73e9c2c12d add a note, remove a done deed. 
llvm-svn: 45869
 2008-01-11 18:00:13 +00:00
Arnold Schwaighofer
5cc460a50e 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.

llvm-svn: 45868
 2008-01-11 17:10:15 +00:00
Arnold Schwaighofer
d58f91f376 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

llvm-svn: 45867
 2008-01-11 16:49:42 +00:00
Arnold Schwaighofer
d2318e2f41 Correct a copy and paste error. 
llvm-svn: 45865
 2008-01-11 14:34:56 +00:00
Evan Cheng
ae6d80dead Some C backend ByVal parameter attribute support. Not yet complete. 
llvm-svn: 45864
 2008-01-11 09:12:49 +00:00
Evan Cheng
b10a30578e Rename Int_CVTSI642SSr* to Int_CVTSI2SS64r* for naming consistency and remove unused instructions. 
llvm-svn: 45861
 2008-01-11 07:37:44 +00:00
Chris Lattner
20d1e419b3 more flags set right 
llvm-svn: 45860
 2008-01-11 07:18:17 +00:00
Chris Lattner
cb62477ec2 add some missing flags. 
llvm-svn: 45859
 2008-01-11 06:59:07 +00:00
Chris Lattner
ff7707de37 don't include loopinfo.h from this file. 
llvm-svn: 45858
 2008-01-11 06:30:04 +00:00
Chris Lattner
201be5f41e Move typedef of loop to top of the file where it is more obvious. 
llvm-svn: 45857
 2008-01-11 06:29:42 +00:00
Chris Lattner
b9232a8374 Fix 80 col violations 
llvm-svn: 45856
 2008-01-11 06:27:42 +00:00
Chris Lattner
6fa8e434a3 document the byval parameter attribute. 
llvm-svn: 45855
 2008-01-11 06:20:47 +00:00
Chris Lattner
08a33a998a add some notes. 
llvm-svn: 45854
 2008-01-11 06:17:47 +00:00