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59732 Commits

Author SHA1 Message Date
Eric Christopher 206d7ce582 Silence an unused variable warning. 
llvm-svn: 101438
 2010-04-16 04:02:04 +00:00
Chris Lattner bd2d9430d6 fix comment noticed by Bob 
llvm-svn: 101437
 2010-04-16 02:32:17 +00:00
Gabor Greif 403e9694f9 back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Chris Lattner 393e08536d move comment. 
llvm-svn: 101433
 2010-04-16 01:05:52 +00:00
Chris Lattner 1146d326a7 fix PR6832: we were using the alignment of a pointer when we 
wanted the alignment of the pointee.

llvm-svn: 101432
 2010-04-16 01:05:38 +00:00
Dan Gohman 0977358509 Create an exports file, so that the plugin only exports the onload symbol. 
llvm-svn: 101431
 2010-04-16 00:43:25 +00:00
Dan Gohman ebb4ae0912 Make things static that don't need to be referenced from outside the file. 
llvm-svn: 101430
 2010-04-16 00:42:57 +00:00
Chris Lattner b73552908e improve comments. 
llvm-svn: 101429
 2010-04-16 00:38:19 +00:00
Chris Lattner 78d7dbbc30 pull all the ConvertToScalarInfo code together into one 
place.

llvm-svn: 101427
 2010-04-16 00:24:57 +00:00
Chris Lattner d69c3ee958 more refactoring: suck some stuff out of SRoA into 
ConvertToScalarInfo.

llvm-svn: 101425
 2010-04-16 00:20:00 +00:00
Gabor Greif 6af0ad846e shift intrinsic operand 
llvm-svn: 101423
 2010-04-16 00:06:45 +00:00
Chris Lattner 9ef4eae6e6 introduce a new ConvertToScalarInfo struct to simplify 
CanConvertToScalar/MergeInType.  Eliminate a pointless
LLVMContext argument to MergeInType.

llvm-svn: 101422
 2010-04-15 23:50:26 +00:00
Jakob Stoklund Olesen cdc3df4888 Avoid sinking machine instructions into a loop. 
MachineLoopInfo is already available when MachineSinking runs, so the check is
free.

There is no test case because it would require a critical edge into a loop, and
CodeGenPrepare splits those. This check is just to be extra careful.

llvm-svn: 101420
 2010-04-15 23:41:02 +00:00
Johnny Chen 1d3ee607b3 Added another test case for am3offset operand, testing Rn, #+/-imm8. 
Previous checkin tested Rn, #+/-Rm.

llvm-svn: 101418
 2010-04-15 23:23:40 +00:00
Jakob Stoklund Olesen dc6d42dbf8 Add test case for machine-sink on critical edges 
llvm-svn: 101416
 2010-04-15 23:19:16 +00:00
Johnny Chen acbc06c2a3 Fixed a bug in ARM disassembly where LDRSBT should have am3offset operand, not 
am2offset.  Modified the instruction table entry and added a new test case.

llvm-svn: 101415
 2010-04-15 23:12:47 +00:00
Dan Gohman ff9ecb2824 Make the export files absolute paths, and change Makefile.rules 
to expect them this way, to fix srcdir!=objdir builds.

llvm-svn: 101414
 2010-04-15 23:08:00 +00:00
Dan Gohman 1639265421 Add a dependency on the .dir file to make sure that the directory 
is created before the native exports file is built in a parallel build.

llvm-svn: 101413
 2010-04-15 22:46:27 +00:00
Evan Cheng f7f97b4bbd Use default lowering of DYNAMIC_STACKALLOC. As far as I can tell, ARM isle is doing the right thing and codegen looks correct for both Thumb and Thumb2. 
llvm-svn: 101410
 2010-04-15 22:20:34 +00:00
Chris Lattner 9c1172d848 tidy interface to isOnlyCopiedFromConstantGlobal 
llvm-svn: 101405
 2010-04-15 21:59:20 +00:00
Daniel Dunbar 73fa324609 Don't use absolute path for EXPORTED_SYMBOL_FILE, this breaks under the new 
system.

llvm-svn: 101404
 2010-04-15 21:57:43 +00:00
Dan Gohman 473a53f7b1 Generalize the EXPORTED_SYMBOL_FILE concept in the Makefiles to work with 
native linking export files, including running sed to prepend underscores
on darwin, and make use of it in libLTO and libEnhancedDisassembly.

Remove the leading underscores from library export files so that they
work with the new EXPORTED_SYMBOL_FILE support.

llvm-svn: 101399
 2010-04-15 20:54:25 +00:00
Gabor Greif 33ae80bff7 reapply r101364, which has been backed out in r101368 
with a fix

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: 101397
 2010-04-15 20:51:13 +00:00
Duncan Sands 626b02470b Pointed out by housel on #llvm. 
llvm-svn: 101395
 2010-04-15 20:35:54 +00:00
Jakob Stoklund Olesen b642a27525 Fix PR6847. RegScavenger should ignore DebugValues. 
llvm-svn: 101392
 2010-04-15 20:28:39 +00:00
Nicolas Geoffray 19cd1d84ad Make sure the initialization of a GC root is after its definition. 
llvm-svn: 101388
 2010-04-15 19:53:35 +00:00
Anton Korobeynikov 839cdaa70a Revert r100896 and around - this breaks the only mingw32 buildbot we have. 
llvm-svn: 101387
 2010-04-15 19:51:42 +00:00
Gabor Greif b36d07cb93 prune includes 
llvm-svn: 101385
 2010-04-15 19:44:21 +00:00
Evan Cheng 1ba1428577 ARM SelectDYN_ALLOC should emit a copy from SP rather than referencing SP directly. In cases where there are two dyn_alloc in the same BB it would have caused the old SP value to be reused and badness ensues. rdar://7493908 
llvm is generating poor code for dynamic alloca, I'll fix that later.

llvm-svn: 101383
 2010-04-15 18:42:28 +00:00
Johnny Chen 4230e35879 DEBUG() print out "Unknown format" msg. 
llvm-svn: 101382
 2010-04-15 18:13:51 +00:00
Dan Gohman 48a189280e ReuseFrameIndexVals is used in multiple files, so it can't be static. 
llvm-svn: 101379
 2010-04-15 17:34:58 +00:00
Dan Gohman 2085719a98 EnablePPC64RS and EnablePPC32RS are used in multiple files, so they 
can't be static.

llvm-svn: 101377
 2010-04-15 17:20:57 +00:00
Dan Gohman b29cda9b3c Fix a bunch of namespace polution. 
llvm-svn: 101376
 2010-04-15 17:08:50 +00:00
Dan Gohman 345356ee9a Fix namespace polution. 
llvm-svn: 101375
 2010-04-15 16:23:27 +00:00
Dan Gohman 4e3c1139a2 Make getPredecessorWithUniqueSuccessorForBB return the unique successor 
in addition to the predecessor.

llvm-svn: 101374
 2010-04-15 16:19:08 +00:00
Gabor Greif ff3c8b7eaf typos 
llvm-svn: 101371
 2010-04-15 15:14:46 +00:00
Gabor Greif 9fd00c7d25 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 a944a9a902 Simplify ".bc" detection. 
llvm-svn: 101365
 2010-04-15 11:33:14 +00:00
Gabor Greif aafd209632 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 3245afdf05 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 6ebd8674eb 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 f9b2e3c68a 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 4041ab6e00 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 913c998703 Add more const qualifiers for LLVM IR pointers in CodeGen. 
llvm-svn: 101342
 2010-04-15 04:33:49 +00:00
Chris Lattner 60bbb8c356 further tweak this to do something useful. 
llvm-svn: 101341
 2010-04-15 04:31:42 +00:00
Chris Lattner 9ebaf531ab remove undef control flow. 
llvm-svn: 101340
 2010-04-15 04:30:19 +00:00
Daniel Dunbar f43481df34 Remove unnecessary uses of <iostream>. 
llvm-svn: 101338
 2010-04-15 03:47:24 +00:00
Daniel Dunbar 5f372e2f13 tests: MC/Disassembler tests depend on ARM support being compiler in. 
llvm-svn: 101337
 2010-04-15 03:47:20 +00:00
Chris Lattner 2df4fa5bc8 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 47bccf7f28 Fix build. 
llvm-svn: 101335
 2010-04-15 03:11:28 +00:00