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920595a960
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21283 Commits

Author SHA1 Message Date
Duncan Sands
920595a960 Remove an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45655 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 07:43:13 +00:00
Chris Lattner
c8478d8b12 Change the 'isStore' inferrer to look for 'SDNPMayStore' 
instead of "ISD::STORE".  This allows us to mark target-specific dag
nodes as storing (such as ppc byteswap stores).  This allows us to remove
more explicit isStore flags from the .td files.

Finally, add a warning for when a .td file contains an explicit 
isStore and tblgen is able to infer it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45654 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 06:44:58 +00:00
Chris Lattner
13c6310866 remove explicit isStore flags that are now inferrable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45653 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 05:55:01 +00:00
Chris Lattner
9c9fbf8e9c remove some isStore flags that are now inferred automatically. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45652 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 05:53:26 +00:00
Bill Wendling
f995830daf Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45638 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 23:30:51 +00:00
Chris Lattner
19033bf7f8 make this build with newer gcc's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45637 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 23:29:51 +00:00
Nate Begeman
219f67f0a5 Remove an incorrect optimization that is performed correctly by 
the target independent legalizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45631 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 20:51:30 +00:00
Nate Begeman
2281a99141 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45630 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 20:47:37 +00:00
Chris Lattner
54b62f3af5 Fix build issue on certain compilers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45629 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 20:15:42 +00:00
Gordon Henriksen
86737665b8 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45627 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 16:56:59 +00:00
Bill Wendling
df303bd7f2 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)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45626 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 09:18:04 +00:00
Chris Lattner
e430e1c072 The current impl is really trivial, add some comments about how it can be made better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 06:47:58 +00:00
Chris Lattner
3c42f12118 allow sinking to be enabled for the jit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45624 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 06:14:16 +00:00
Chris Lattner
f29495a22f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 06:10:42 +00:00
Chris Lattner
3b5a221f81 simplify some code by using shorter accessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 05:28:30 +00:00
Chris Lattner
a83b34bbeb revert my previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45621 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 05:26:26 +00:00
Chris Lattner
505d4abd05 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?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45620 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 05:19:56 +00:00
Chris Lattner
e9648f8981 getting the pic base has no side effects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45618 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 03:54:32 +00:00
Chris Lattner
ba84ed7e92 don't sink anything with side effects, this makes lots of stuff work, but sinks almost nothing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 02:33:22 +00:00
Evan Cheng
2a3e08b596 X86 JIT PIC jumptable support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 02:26:58 +00:00
Chris Lattner
9bb459b554 fix a common crash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 01:39:17 +00:00
Chris Lattner
5a62d0a038 remove a couple more unsafe xforms in the face of overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 01:22:42 +00:00
Chris Lattner
b656601943 remove the (x-y) < 0 comparison xform, it miscompiles 
things that are not equality comparisons, for example:
   (2147479553+4096)-2147479553 < 0    !=   (2147479553+4096) < 2147479553


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 01:18:20 +00:00
Owen Anderson
a393cd3306 I should not be allowed to commit when sleepy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 00:48:55 +00:00
Evan Cheng
0475ab58b8 Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 00:41:47 +00:00
Owen Anderson
d94b6a16fe Move some more functionality from MRegisterInfo to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 23:57:37 +00:00
Bill Wendling
67d65bb69d Don't recalculate the loop info and loop dominators analyses if they're 
preserved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45596 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 20:54:55 +00:00
Wojciech Matyjewicz
21a715a124 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45594 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 20:02:18 +00:00
Evan Cheng
991500e329 Unbreak tailcall opt in JIT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45576 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 10:50:28 +00:00
Evan Cheng
be8c03fc66 X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45575 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 10:46:51 +00:00
Bill Wendling
2674d71df0 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45574 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 08:59:18 +00:00
Bill Wendling
d5da7048c2 Add that this preserves some analyses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45573 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 08:48:49 +00:00
Bill Wendling
cc8f603f53 Move option to enable machine LICM into LLVMTargetMachine.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45572 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 08:11:03 +00:00
Bill Wendling
b082c6f5d9 Call the parent's getAnalysisUsage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 07:50:05 +00:00
Chris Lattner
c4ce73f666 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45570 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 07:36:53 +00:00
Chris Lattner
ac69582664 remove dead #includes and reorder the rest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 06:41:45 +00:00
Chris Lattner
9027b3cc7f Fix PR1896 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 05:04:53 +00:00
Evan Cheng
165b60de0b Correct order of parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45562 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 02:22:21 +00:00
Chris Lattner
c45f5c7652 Remove symbols that don't exist, remove tabs, fix comment typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45553 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 22:15:32 +00:00
Gordon Henriksen
ae636f8e99 First steps in in X86 calling convention cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45536 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 16:47:34 +00:00
Chris Lattner
3d73bce2d0 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%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45533 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 07:25:26 +00:00
Chris Lattner
76327d9cf5 Fix PR1873, a problem finding stat-related symbols on linux, due to 
"libc_nonshared.a". Patch by Edwin Török!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 07:10:51 +00:00
Gordon Henriksen
23d9791ddd Trying that again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45529 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 03:32:33 +00:00
Gordon Henriksen
98232f5859 Fix a compile error on Windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45528 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 03:21:18 +00:00
Evan Cheng
02aabbf96b 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 02:56:28 +00:00
Chris Lattner
50cffa0107 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45525 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 01:20:12 +00:00
Chris Lattner
89e94bd00c Don't create a new ParamAttrsList (which copies the vector) just to 
get a profile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45524 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 00:29:27 +00:00
Chris Lattner
fabfde3ff0 move some code out of line, rearrange a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45519 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 00:10:22 +00:00
Chris Lattner
50ee9ddc8f Split param attr implementation out from Function.cpp into its 
own file.  Don't #include ParameterAttributes.h into any major
public header files: just move methods out of line as appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45517 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-02 23:42:30 +00:00
Chris Lattner
a114b14e5d add missing #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45516 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-02 23:41:05 +00:00