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Author SHA1 Message Date
Chris Lattner
86ca5928b5 factor some code better to avoid redundancy between 
isReallySideEffectFree and isReallyTriviallyReMaterializable.  Why is a load from
a global considered side-effect-free but not rematable?

llvm-svn: 45620
 2008-01-05 05:19:56 +00:00
Chris Lattner
6ad8e32f6b getting the pic base has no side effects. 
llvm-svn: 45618
 2008-01-05 03:54:32 +00:00
Chris Lattner
9e7943159e don't sink anything with side effects, this makes lots of stuff work, but sinks almost nothing. 
llvm-svn: 45617
 2008-01-05 02:33:22 +00:00
Evan Cheng
759f389846 X86 JIT PIC jumptable support. 
llvm-svn: 45616
 2008-01-05 02:26:58 +00:00
Chris Lattner
377c720459 fix a common crash. 
llvm-svn: 45614
 2008-01-05 01:39:17 +00:00
Chris Lattner
7e1c3aa702 remove a couple more unsafe xforms in the face of overflow. 
llvm-svn: 45613
 2008-01-05 01:22:42 +00:00
Chris Lattner
983697dfac remove the (x-y) < 0 comparison xform, it miscompiles 
things that are not equality comparisons, for example:
   (2147479553+4096)-2147479553 < 0    !=   (2147479553+4096) < 2147479553

llvm-svn: 45612
 2008-01-05 01:18:20 +00:00
Owen Anderson
8c8c5906f8 I should not be allowed to commit when sleepy. 
llvm-svn: 45608
 2008-01-05 00:48:55 +00:00
Owen Anderson
6c7beb1748 Didn't mean to commit this. 
llvm-svn: 45607
 2008-01-05 00:43:37 +00:00
Owen Anderson
4cce45354c Didn't mean to commit this. 
llvm-svn: 45606
 2008-01-05 00:42:45 +00:00
Evan Cheng
5b9282f3b5 Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed. 
llvm-svn: 45605
 2008-01-05 00:41:47 +00:00
Owen Anderson
2adf8c5533 Move some more functionality from MRegisterInfo to TargetInstrInfo. 
llvm-svn: 45603
 2008-01-04 23:57:37 +00:00
Bill Wendling
93556af6c4 Don't recalculate the loop info and loop dominators analyses if they're 
preserved.

llvm-svn: 45596
 2008-01-04 20:54:55 +00:00
Wojciech Matyjewicz
2502769cf3 fix typo 
llvm-svn: 45595
 2008-01-04 20:04:08 +00:00
Wojciech Matyjewicz
9ec15f974f fix typo 
llvm-svn: 45594
 2008-01-04 20:02:18 +00:00
Duncan Sands
8a7547d26f Testcase with non-integer "bitfields" (in quotes, 
since they didn't actually need to be bitfields,
though they are marked as such).

llvm-svn: 45588
 2008-01-04 17:31:56 +00:00
Gordon Henriksen
bc89f424b7 Fix a typo in llvm.mli noticed by Alain Frisch. 
llvm-svn: 45585
 2008-01-04 13:21:02 +00:00
Duncan Sands
93c581f2a8 Testcase for PR1386. 
llvm-svn: 45583
 2008-01-04 13:15:39 +00:00
Bill Wendling
9763bb186b doc_code-ify some code in this doc. 
llvm-svn: 45581
 2008-01-04 12:04:32 +00:00
Gordon Henriksen
35d9fcb448 Quote a path in the Ocaml makefile which is likely to include spaces on Windows. 
llvm-svn: 45580
 2008-01-04 11:55:57 +00:00
Evan Cheng
6dbcca7903 Unbreak tailcall opt in JIT. 
llvm-svn: 45576
 2008-01-04 10:50:28 +00:00
Evan Cheng
7322e4dec4 X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support. 
llvm-svn: 45575
 2008-01-04 10:46:51 +00:00
Bill Wendling
4f3a9df125 80-column violations. 
llvm-svn: 45574
 2008-01-04 08:59:18 +00:00
Bill Wendling
2017097bb8 Add that this preserves some analyses. 
llvm-svn: 45573
 2008-01-04 08:48:49 +00:00
Bill Wendling
13eb1bfc08 Move option to enable machine LICM into LLVMTargetMachine.cpp. 
llvm-svn: 45572
 2008-01-04 08:11:03 +00:00
Bill Wendling
da5d32e248 Call the parent's getAnalysisUsage. 
llvm-svn: 45571
 2008-01-04 07:50:05 +00:00
Chris Lattner
f4972fa569 Add a really quick hack at a machine code sinking pass, enabled with --enable-sinking. 
It is missing validity checks, so it is known broken.  However, it is powerful enough
to compile this contrived code:

void test1(int C, double A, double B, double *P) {
  double Tmp = A*A+B*B;
  *P = C ? Tmp : A;
}

into:

_test1:
	movsd	8(%esp), %xmm0
	cmpl	$0, 4(%esp)
	je	LBB1_2	# entry
LBB1_1:	# entry
	movsd	16(%esp), %xmm1
	mulsd	%xmm1, %xmm1
	mulsd	%xmm0, %xmm0
	addsd	%xmm1, %xmm0
LBB1_2:	# entry
	movl	24(%esp), %eax
	movsd	%xmm0, (%eax)
	ret

instead of:

_test1:
	movsd	16(%esp), %xmm0
	mulsd	%xmm0, %xmm0
	movsd	8(%esp), %xmm1
	movapd	%xmm1, %xmm2
	mulsd	%xmm2, %xmm2
	addsd	%xmm0, %xmm2
	cmpl	$0, 4(%esp)
	je	LBB1_2	# entry
LBB1_1:	# entry
	movapd	%xmm2, %xmm1
LBB1_2:	# entry
	movl	24(%esp), %eax
	movsd	%xmm1, (%eax)
	ret

woo.

llvm-svn: 45570
 2008-01-04 07:36:53 +00:00
Chris Lattner
b02b90a8f6 remove dead #includes and reorder the rest. 
llvm-svn: 45569
 2008-01-04 06:41:45 +00:00
Chris Lattner
d4c66656a1 Fix PR1896 
llvm-svn: 45568
 2008-01-04 05:04:53 +00:00
Chris Lattner
e71d6a90f1 Change the builtin matcher to emit a decision tree, which should help out 
the VC++ 'nesting depth' issue.

llvm-svn: 45567
 2008-01-04 04:38:35 +00:00
Chris Lattner
6142c837b5 fix nesting issues. 
llvm-svn: 45566
 2008-01-04 04:34:14 +00:00
Chris Lattner
056ca9d8e2 fix validation issues. 
llvm-svn: 45565
 2008-01-04 04:33:49 +00:00
Chris Lattner
3618504cc2 improve the description of types, patch by Alain Frisch 
llvm-svn: 45564
 2008-01-04 04:32:38 +00:00
Chris Lattner
17760c87aa Don't let IntrinsicID be uninitialized if it doesn't match. 
llvm-svn: 45563
 2008-01-04 03:32:52 +00:00
Evan Cheng
627a9455a6 Correct order of parameters. 
llvm-svn: 45562
 2008-01-04 02:22:21 +00:00
Bill Wendling
26e9579653 Remove the default else. This was ending in code that looked like this: 
if (!strcmp(Target, "x86")) {
  // ...
}
else
  IntrinsicID = Intrinsic::not_intrinsic;

llvm-svn: 45557
 2008-01-03 23:02:16 +00:00
Chris Lattner
40f17611cc Remove symbols that don't exist, remove tabs, fix comment typo 
llvm-svn: 45553
 2008-01-03 22:15:32 +00:00
Chuck Rose III
b3986cc208 Adding new files to win32 build 
llvm-svn: 45545
 2008-01-03 19:53:03 +00:00
Chris Lattner
5d4e5f277a add info on walking preds/succs of a block. 
llvm-svn: 45537
 2008-01-03 16:56:04 +00:00
Gordon Henriksen
d3af8e0ab3 First steps in in X86 calling convention cleanup. 
llvm-svn: 45536
 2008-01-03 16:47:34 +00:00
Duncan Sands
4f9b058e95 Test for handling of large bit offset from a 
variable field offset.

llvm-svn: 45534
 2008-01-03 11:53:52 +00:00
Chris Lattner
26b89fd30a don't hoist FP additions into unconditional adds + selects. This 
could theoretically introduce a trap, but is also a performance issue.
This speeds up ptrdist/ks by 8%.

llvm-svn: 45533
 2008-01-03 07:25:26 +00:00
Chris Lattner
a27cc48cbc Fix PR1873, a problem finding stat-related symbols on linux, due to 
"libc_nonshared.a". Patch by Edwin Török!

llvm-svn: 45532
 2008-01-03 07:10:51 +00:00
Gordon Henriksen
8e4ae9a345 Trying that again. 
llvm-svn: 45529
 2008-01-03 03:32:33 +00:00
Gordon Henriksen
b28803a63f Fix a compile error on Windows. 
llvm-svn: 45528
 2008-01-03 03:21:18 +00:00
Evan Cheng
fb2bc4fc95 Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used 
for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).

llvm-svn: 45527
 2008-01-03 02:56:28 +00:00
Chris Lattner
6c74a2cbcb don't access element zero of an array of size zero. 
llvm-svn: 45526
 2008-01-03 01:25:31 +00:00
Chris Lattner
c613164542 Remove the function attr cache for intrinsics. This does not maintain the 
refcount on these correctly, and can end up referring to deleted 
attributes.  This fixes PR1881.

llvm-svn: 45525
 2008-01-03 01:20:12 +00:00
Chris Lattner
e54252e6e1 Don't create a new ParamAttrsList (which copies the vector) just to 
get a profile.

llvm-svn: 45524
 2008-01-03 00:29:27 +00:00
Duncan Sands
cc3a49623f An example for which the TYPE_SIZE was being set from 
the initial value, while the type fields were not (this
is a qualified union type, so not all fields are always
present).  This resulted in the size of the corresponding
LLVM type being larger than the gcc TYPE_SIZE.

llvm-svn: 45522
 2008-01-03 00:26:42 +00:00