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Author SHA1 Message Date
Gabor Greif
6022150477 back out r101364, as it trips the linux nightlybot on some clang C++ tests 
llvm-svn: 101368
 2010-04-15 12:46:56 +00:00
Benjamin Kramer
c57e4c744b Simplify ".bc" detection. 
llvm-svn: 101365
 2010-04-15 11:33:14 +00:00
Gabor Greif
428ca23bbd rotate CallInst operands, i.e. move callee to the back 
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101364
 2010-04-15 10:49:53 +00:00
Chris Lattner
1b7ecfdf60 enhance the load/store narrowing optimization to handle a 
tokenfactor in between the load/store.  This allows us to 
optimize test7 into:

_test7:                                 ## @test7
## BB#0:                                ## %entry
	movl	(%rdx), %eax
                                        ## kill: SIL<def> ESI<kill>
	movb	%sil, 5(%rdi)
	ret

instead of:

_test7:                                 ## @test7
## BB#0:                                ## %entry
	movl	4(%esp), %ecx
	movl	$-65281, %eax           ## imm = 0xFFFFFFFFFFFF00FF
	andl	4(%ecx), %eax
	movzbl	8(%esp), %edx
	shll	$8, %edx
	addl	%eax, %edx
	movl	12(%esp), %eax
	movl	(%eax), %eax
	movl	%edx, 4(%ecx)
	ret

llvm-svn: 101355
 2010-04-15 06:10:49 +00:00
Chris Lattner
8c5a5c9094 teach codegen to turn trunc(zextload) into load when possible. 
This doesn't occur much at all, it only seems to formed in the case
when the trunc optimization kicks in due to phase ordering.  In that
case it is saves a few bytes on x86-32.

llvm-svn: 101350
 2010-04-15 05:40:59 +00:00
Chris Lattner
510d19e597 add a simple dag combine to replace trivial shl+lshr with 
and.  This happens with the store->load narrowing stuff.

llvm-svn: 101348
 2010-04-15 05:28:43 +00:00
Chris Lattner
3282f3d34f Implement rdar://7860110 (also in target/readme.txt) narrowing 
a load/or/and/store sequence into a narrower store when it is
safe.  Daniel tells me that clang will start producing this sort
of thing with bitfields, and this does  trigger a few dozen times
on 176.gcc produced by llvm-gcc even now.

This compiles code like CodeGen/X86/2009-05-28-DAGCombineCrash.ll 
into:

        movl    %eax, 36(%rdi)

instead of:

        movl    $4294967295, %eax       ## imm = 0xFFFFFFFF
        andq    32(%rdi), %rax
        shlq    $32, %rcx
        addq    %rax, %rcx
        movq    %rcx, 32(%rdi)

and each of the testcases into a single store.  Each of them used
to compile into craziness like this:

_test4:
	movl	$65535, %eax            ## imm = 0xFFFF
	andl	(%rdi), %eax
	shll	$16, %esi
	addl	%eax, %esi
	movl	%esi, (%rdi)
	ret

llvm-svn: 101343
 2010-04-15 04:48:01 +00:00
Dan Gohman
64a84ceb3f Add more const qualifiers for LLVM IR pointers in CodeGen. 
llvm-svn: 101342
 2010-04-15 04:33:49 +00:00
Chris Lattner
553267e9cc further tweak this to do something useful. 
llvm-svn: 101341
 2010-04-15 04:31:42 +00:00
Chris Lattner
a4b3756baf remove undef control flow. 
llvm-svn: 101340
 2010-04-15 04:30:19 +00:00
Daniel Dunbar
3bf3e0e63a Remove unnecessary uses of <iostream>. 
llvm-svn: 101338
 2010-04-15 03:47:24 +00:00
Daniel Dunbar
cc40ce33de tests: MC/Disassembler tests depend on ARM support being compiler in. 
llvm-svn: 101337
 2010-04-15 03:47:20 +00:00
Chris Lattner
f827b4be59 fix a crash on "lli ex" or any other file whose name is exactly two 
characters long.

llvm-svn: 101336
 2010-04-15 03:32:19 +00:00
Anders Carlsson
32747b3841 Fix build. 
llvm-svn: 101335
 2010-04-15 03:11:28 +00:00
Dan Gohman
0e0b8cf9fd Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Eric Christopher
3be394d9b1 Allow lowering for palignr instructions for mmx sized vectors. Add 
patterns to handle the lowering.

llvm-svn: 101331
 2010-04-15 01:40:20 +00:00
Evan Cheng
8249affa3b More 80 violations. 
llvm-svn: 101330
 2010-04-15 01:25:27 +00:00
Johnny Chen
b74c5b564c Wrap the error msgs in DEBUG() macro so that they won't appear in NDEBUG build. 
llvm-svn: 101329
 2010-04-15 01:20:56 +00:00
Evan Cheng
263c547804 80 col violations. 
llvm-svn: 101325
 2010-04-15 01:01:55 +00:00
Devang Patel
1b457aa5cd Add comment. 
llvm-svn: 101317
 2010-04-15 00:02:49 +00:00
Devang Patel
2374ea6452 There is no need to track compile unit offsets if there is only one compile unit. 
llvm-svn: 101315
 2010-04-14 23:56:24 +00:00
Devang Patel
321a86f14b Remove dead code. 
llvm-svn: 101314
 2010-04-14 23:54:13 +00:00
Tobias Grosser
ff64e0fb16 IPO needs ScalarOpts and InstCombine in its libs 
The commit "Adding IPSCCP and Internalize passes to the C-bindings" introduced
new dependencies for IPO. Add these to the CMAKE build as otherwise the
BUILD_SHARED_LIBS=1 build fails.

llvm-svn: 101313
 2010-04-14 23:42:23 +00:00
Johnny Chen
a793a40572 Fixed another assert exposed by fuzzing. Now, the DisassembleVFPLdStMulFrm() 
function checks whether we have a valid submode for VLDM/VSTM (must be either
"ia" or "db") before calling ARM_AM::getAM5Opc(AMSubMode, unsigned char).

llvm-svn: 101306
 2010-04-14 22:37:17 +00:00
Jim Grosbach
92490b077a Add -arm-long-calls option to force calls to be indirect. This makes the 
kernel linker happier when dealing with kexts.

Radar 7805069

llvm-svn: 101303
 2010-04-14 22:28:31 +00:00
Dan Gohman
d9d73a414c Fix TrackingVH to handle const Value subclasses. 
llvm-svn: 101300
 2010-04-14 22:24:25 +00:00
Dan Gohman
a5a1f2f8d0 Remove a const here. This makes this function consistent with all the 
other getOperand wrappers, and it makes it easier to use with DebugInfo
code, which isn't currently prepared to see const MDNode *.

llvm-svn: 101299
 2010-04-14 22:23:05 +00:00
Dan Gohman
5c72d507d7 Constify GetConstantStringInfo. 
llvm-svn: 101298
 2010-04-14 22:20:45 +00:00
Nicolas Geoffray
8e94bbf2e1 Don't use DILocation when processing a DebugLoc. 
llvm-svn: 101294
 2010-04-14 22:06:37 +00:00
Johnny Chen
f609eeff77 For t2BFI disassembly, apply the same error checking as in r101205. 
Change the error msg to read "Encoding error: msb < lsb".

llvm-svn: 101293
 2010-04-14 22:04:45 +00:00
Dan Gohman
2c2f455dfa Move a bunch of methods from CallSite to CallSiteBase, so that they can 
be used in ImmutableCallSite too.

llvm-svn: 101292
 2010-04-14 21:47:32 +00:00
Johnny Chen
ad1fee5287 Fixed another assert exposed by fuzzing. The utility function getRegisterEnum() 
was asserting because the (RegClass, RegNum) combination doesn't make sense from
an encoding point of view.

Since getRegisterEnum() is used all over the place, to change the code to check
for encoding error after each call would not only bloat the code, but also make
it less readable.  An Err flag is added to the ARMBasicMCBuilder where a client
can set a non-zero value to indicate some kind of error condition while building
up the MCInst.  ARMBasicMCBuilder::BuildIt() checks this flag and returns false
if a non-zero value is detected.

llvm-svn: 101290
 2010-04-14 21:03:13 +00:00
Jakob Stoklund Olesen
7343a90490 Remove unneeded types from test. 
llvm-svn: 101286
 2010-04-14 20:56:09 +00:00
Evan Cheng
31483b8c9b - Code clean up to reduce indentation. 
- TryToOptimizeStoreOfMallocToGlobal should check if TargetData is available and bail out if it is not. The transformations being done requires TD.

llvm-svn: 101285
 2010-04-14 20:52:55 +00:00
Dan Gohman
16ea461eb9 Use FunTy instead of hard-coding Function. 
llvm-svn: 101283
 2010-04-14 20:49:44 +00:00
Bob Wilson
7b19d89e3a Don't custom lower bit converts to ARM VMOVDRRD or VMOVDRR when the operand 
does not have a legal type.  The legalizer does not know how to handle those
nodes.  Radar 7854640.

llvm-svn: 101282
 2010-04-14 20:45:23 +00:00
Dan Gohman
94f168ddbe Oops, make these public. 
llvm-svn: 101280
 2010-04-14 20:31:28 +00:00
Dan Gohman
eeaee6bbe3 Move getType() and getCaller() into CallSiteBase so that 
ImmutableCallSite can use them too.

llvm-svn: 101279
 2010-04-14 20:28:44 +00:00
Evan Cheng
a05db75002 Trim tests and convert to FileCheck. 
llvm-svn: 101277
 2010-04-14 20:22:17 +00:00
Dan Gohman
1b67547226 Delete unneeeded arguments. 
llvm-svn: 101276
 2010-04-14 20:17:22 +00:00
Dan Gohman
d5d199da5f Delete unused arguments. 
llvm-svn: 101275
 2010-04-14 20:05:00 +00:00
Dan Gohman
c64d1d02a3 Factor out EH landing pad code into a separate function, and constify 
a bunch of stuff to support it.

llvm-svn: 101273
 2010-04-14 19:53:31 +00:00
Dan Gohman
c94abce286 Reset the debug location even if the instruction was a terminator. 
llvm-svn: 101272
 2010-04-14 19:30:02 +00:00
Dan Gohman
9ed196804f Fix a missing #include. 
llvm-svn: 101270
 2010-04-14 18:57:18 +00:00
Dan Gohman
2d61a3f384 Refine #includes. 
llvm-svn: 101269
 2010-04-14 18:49:17 +00:00
Dan Gohman
d7fc9e258b Split ISD::NodeType and a few related items out of SelectionDAGNodes.h 
into a separate header to allow clients to use them without pulling in
SelectionDAG-specific declarations.

llvm-svn: 101268
 2010-04-14 18:44:34 +00:00
Dan Gohman
b0b1974ddd Pull utility routines with no SelectionDAG dependence out of 
SelectionDAGBuilder. FunctionLoweringInfo isn't an ideal place for
them to live, but it's better than SelectionDAGBuilder for now.

llvm-svn: 101267
 2010-04-14 18:31:02 +00:00
Dan Gohman
64582fc238 Fix typos in comments. 
llvm-svn: 101266
 2010-04-14 18:24:06 +00:00
Gabor Greif
8cbd9638a9 performance: cache the dereferenced use_iterator 
llvm-svn: 101265
 2010-04-14 18:13:29 +00:00
Dan Gohman
60b5b8fa20 Delete an obsolete comment. 
llvm-svn: 101264
 2010-04-14 17:40:25 +00:00