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Author SHA1 Message Date
Chris Lattner
3cd393b5ab change getQualifiedName to be a global function. 
Split the pattern parsing code out from the dag isel emitter into it's own file.

No functionality change.

llvm-svn: 45632
 2008-01-05 22:25:12 +00:00
Nate Begeman
ff49dc59ff Remove an incorrect optimization that is performed correctly by 
the target independent legalizer.

llvm-svn: 45631
 2008-01-05 20:51:30 +00:00
Nate Begeman
a6e9de35ae If custom lowering of insert element fails, the result Val will be 0. 
Don't overwrite a variable used by the fallthrough code path in this
case.

llvm-svn: 45630
 2008-01-05 20:47:37 +00:00
Chris Lattner
9f51583a6a Fix build issue on certain compilers. 
llvm-svn: 45629
 2008-01-05 20:15:42 +00:00
Gordon Henriksen
f4e137838b Refactoring the x86 and x86-64 calling convention implementations, 
unifying the copied algorithms and saving over 500 LOC. There should
be no functionality change, but please test on your favorite x86
target.

llvm-svn: 45627
 2008-01-05 16:56:59 +00:00
Bill Wendling
ecf0f85985 Chris and Evan noticed that this check was compleatly fubared. I was 
checking that there was a from a global instead of a load from the stub
for a global, which is the one that's safe to hoist.

Consider this program:

volatile char G[100];
int B(char *F, int N) {
  for (; N > 0; --N)
    F[N] = G[N];
}

In static mode, we shouldn't be hoisting the load from G:

$ llc -relocation-model=static -o - a.bc -march=x86 -machine-licm

LBB1_1: # bb.preheader
        leal    -1(%eax), %edx
        testl   %edx, %edx
        movl    $1, %edx
        cmovns  %eax, %edx
        xorl    %esi, %esi
LBB1_2: # bb
        movb    _G(%eax), %bl
        movb    %bl, (%ecx,%eax)

llvm-svn: 45626
 2008-01-05 09:18:04 +00:00
Chris Lattner
0d444b96ac The current impl is really trivial, add some comments about how it can be made better. 
llvm-svn: 45625
 2008-01-05 06:47:58 +00:00
Chris Lattner
9428a7d97f allow sinking to be enabled for the jit 
llvm-svn: 45624
 2008-01-05 06:14:16 +00:00
Chris Lattner
f1493e7b58 enable sinking and licm of loads from the argument area. I'd like to enable this 
for remat, but can't due to an RA bug.

llvm-svn: 45623
 2008-01-05 06:10:42 +00:00
Chris Lattner
aad6c09a14 simplify some code by using shorter accessors. 
llvm-svn: 45622
 2008-01-05 05:28:30 +00:00
Chris Lattner
6e948ea2e6 revert my previous patch. 
llvm-svn: 45621
 2008-01-05 05:26:26 +00:00
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