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Author SHA1 Message Date
Bob Wilson
6bc6581ca7 Expand SELECT and SELECT_CC for NEON vector types. 
Radar 7770501.

llvm-svn: 100568
 2010-04-06 22:02:24 +00:00
Dale Johannesen
fef6eb4076 Allow for the possibility that a debug-value points 
to a SDNode that didn't have code generated for it.

llvm-svn: 100566
 2010-04-06 21:59:56 +00:00
Stuart Hastings
4f6cdc07e9 Reverting 100530 & 100531 due to regressions in the GDB test suite. 
llvm-svn: 100563
 2010-04-06 21:38:29 +00:00
Jim Grosbach
0c336a7923 Fix PR6696 and PR6663 
When a frame pointer is not otherwise required, and dynamic stack alignment
is necessary solely due to the spilling of a register with larger alignment
requirements than the default stack alignment, the frame pointer can be both
used as a general purpose register and a frame pointer. That goes poorly, for
obvious reasons. This patch brings back a bit of old logic for identifying
the use of such registers and conservatively reserves the frame pointer
during register allocation in such cases.

For now, implement for X86 only since it's 32-bit linux which is hitting this,
and we want a targeted fix for 2.7. As a follow-on, this will be expanded
to handle other targets, as theoretically the problem could arise elsewhere
as well.

llvm-svn: 100559
 2010-04-06 20:26:37 +00:00
Bill Wendling
c1bbfced8f Make this hack more specific to the Apple gcc 4.2 non-LLVM compiler. 
llvm-svn: 100556
 2010-04-06 20:07:21 +00:00
Jakob Stoklund Olesen
370a3e553f Don't try to collapse DomainValues onto an incompatible SSE domain. 
This fixes the Bullet regression on i386/nocona.

llvm-svn: 100553
 2010-04-06 19:48:56 +00:00
Gabor Greif
faa9bf800f performance: get rid of repeated dereferencing of use_iterator by caching its result 
llvm-svn: 100550
 2010-04-06 19:32:30 +00:00
Gabor Greif
2afbfcfaa4 make more two predicates constant 
llvm-svn: 100549
 2010-04-06 19:24:18 +00:00
Gabor Greif
3969e04cb9 performance: get rid of repeated dereferencing of use_iterator by caching its result 
llvm-svn: 100547
 2010-04-06 19:14:05 +00:00
Gabor Greif
6e9847b04f const-ize predicate ValueIsOnlyUsedLocallyOrStoredToOneGlobal 
llvm-svn: 100546
 2010-04-06 18:58:22 +00:00
Gabor Greif
a1fcda6242 use CallSite to access calls vs. invokes uniformly 
and remove assumptions about operand order

llvm-svn: 100544
 2010-04-06 18:45:08 +00:00
Chris Lattner
81177fa767 this accessor doesn't need to copy the string. 
llvm-svn: 100542
 2010-04-06 18:37:22 +00:00
Chris Lattner
c83a42075b enhance SMDiagnostic to also maintain a pointer to the SourceMgr. 
Add a simplified constructor for clients that don't have locations
like "file not found" errors.

llvm-svn: 100538
 2010-04-06 18:06:18 +00:00
Evan Cheng
99617bac24 Code clean up. Move includes from VirtRegRewriter.h to VirtRegRewriter.cpp. 
llvm-svn: 100532
 2010-04-06 17:19:55 +00:00
Stuart Hastings
749cf45929 Revise debug info machinery to digest nested functions and classes. 
A certain GDB testsuite case (local.cc) has a function nested inside a
class nested inside another function.  GCC presents the innermost
function to llvm-convert first.  Heretofore, the debug info mistakenly
placed the inner function at module scope.  This patch walks the GCC
context links and instantiates the outer class and function so the
debug info is properly nested.  Radar 7426545.

llvm-svn: 100530
 2010-04-06 17:19:32 +00:00
John Criswell
1360040370 Adding SAFECode to the list of projects that work with LLVM 2.7. 
llvm-svn: 100525
 2010-04-06 14:52:14 +00:00
Mon P Wang
c0da8af5c3 Remove assert to treat memmove and memset like memcpy 
llvm-svn: 100521
 2010-04-06 08:27:51 +00:00
Owen Anderson
a8a2718d7d Use a ManagedCleanup to prevent leaking the PassRegistrar map. In breaks the 
use case where someone wants to resurrect LLVM after calling llvm_shutdown,
but I'm not aware of any clients that are affected by this.

llvm-svn: 100519
 2010-04-06 04:20:48 +00:00
Jakob Stoklund Olesen
37cb8c0742 Avoid overflowing a signed integer which triggers undefined behaviour. 
Overflowing an unsigned integer is fine and behaves as you would expect.
Also fix a pasto, allowing SignExtend64 to take a 64-bit argument.

llvm-svn: 100517
 2010-04-06 03:12:43 +00:00
Dan Gohman
cbfa9139eb Add a const qualifier. 
llvm-svn: 100515
 2010-04-06 01:31:12 +00:00
Chris Lattner
960095d2c8 propagate cookie management out one layer of function calls. 
llvm-svn: 100510
 2010-04-06 00:58:50 +00:00
Chris Lattner
344a742ed1 report errors through LLVMContext's inline asm handler if available. 
llvm-svn: 100509
 2010-04-06 00:55:39 +00:00
Chris Lattner
8c1f45d90b Give MachineModuleInfo an actual Module*. 
llvm-svn: 100508
 2010-04-06 00:51:52 +00:00
Chris Lattner
b7a7cb37b6 give LLVMContext an inline asm diagnostic hook member. 
llvm-svn: 100506
 2010-04-06 00:44:45 +00:00
Devang Patel
5e0cb53223 Remove unnecessary include. 
llvm-svn: 100505
 2010-04-06 00:38:32 +00:00
Chris Lattner
48d30a3011 give the SourceMgr object a cookie. 
llvm-svn: 100504
 2010-04-06 00:33:43 +00:00
Chris Lattner
117d05ca0e Give llvm::SourceMgr the ability to have a client-specified 
diagnostic handler.

llvm-svn: 100503
 2010-04-06 00:26:48 +00:00
Douglas Gregor
41de3d792a Remove MaybeOwningPtr. We're going to use reference-counting instead. 
llvm-svn: 100499
 2010-04-05 23:53:46 +00:00
Jakob Stoklund Olesen
fcc2dfa1b4 Properly enable load clustering. 
Operand 2 on a load instruction does not have to be a RegisterSDNode for this to
work.

llvm-svn: 100497
 2010-04-05 23:48:02 +00:00
Evan Cheng
c6dc63d62c Fix an obvious copy-n-paste bug. It's not known to cause any miscompilation. 
llvm-svn: 100494
 2010-04-05 23:33:29 +00:00
Chris Lattner
f753452587 Give AsmParser an option to control whether it finalizes 
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret

llvm-svn: 100492
 2010-04-05 23:15:42 +00:00
Chris Lattner
5b4c7591ac add .o file writing for inline asm in llc. Here's a silly 
demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
	abc incl    %eax
	^
LLVM ERROR: Error parsing inline asm

Only problem seems to be that the parser finalizes OutStreamer 
at the end of the first inline asm, which isn't what we want.
For example:

$ cat asm.c
int foo(int X) {
 __asm__ ("incl    %0" : "+r" (X));
 return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
	subq	$8, %rsp
	movl	%edi, (%rsp)
	movl	%edi, %eax
	## InlineAsm Start
	incl    %eax
	## InlineAsm End
	movl	%eax, (%rsp)
	movl	%eax, 4(%rsp)
	addq	$8, %rsp
	ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
$ 

don't stop at inc!

llvm-svn: 100491
 2010-04-05 23:11:24 +00:00
Chris Lattner
c1d1549692 add a comment. 
llvm-svn: 100490
 2010-04-05 23:07:42 +00:00
Chris Lattner
8b9eaae8d5 tidy #includes. 
llvm-svn: 100489
 2010-04-05 23:07:18 +00:00
Bill Wendling
bf50ddf6ac Output floating point representations in DWARF format. This is done by outputing 
the FP encoding directly as a hex representation.

llvm-svn: 100487
 2010-04-05 22:59:21 +00:00
Chris Lattner
cf8b0d4228 update unit test for api change. 
llvm-svn: 100486
 2010-04-05 22:49:48 +00:00
Chris Lattner
269737461d stringref-ize the MemoryBuffer::get apis. This requires 
a co-committed clang patch.

llvm-svn: 100485
 2010-04-05 22:42:30 +00:00
Evan Cheng
7d177beb1d Add nounwind. 
llvm-svn: 100482
 2010-04-05 22:30:05 +00:00
Evan Cheng
d72090a658 Fix ADD32rr_alt instruction encoding bug. Patch by Marius Wachtler. 
llvm-svn: 100480
 2010-04-05 22:21:09 +00:00
Chris Lattner
e25e981494 fix a really nasty bug that Evan was tracking in SCCP. When resolving 
undefs in branches/switches, we have two cases: a branch on a literal
undef or a branch on a symbolic value which is undef.  If we have a
literal undef, the code was correct: forcing it to a constant is the
right thing to do.

If we have a branch on a symbolic value that is undef, we should force
the symbolic value to a constant, which then makes the successor block
live.  Forcing the condition of the branch to being a constant isn't 
safe if later paths become live and the value becomes overdefined.  This
is the case that 'forcedconstant' is designed to handle, so just use it.

This fixes rdar://7765019 but there is no good testcase for this, the
one I have is too insane to be useful in the future.

llvm-svn: 100478
 2010-04-05 22:14:48 +00:00
Chris Lattner
7cd9ea25c1 some code cleanups, use SwitchInst::findCaseValue, reduce indentation 
llvm-svn: 100468
 2010-04-05 21:18:32 +00:00
Evan Cheng
98db71c632 Code clean up. 
llvm-svn: 100467
 2010-04-05 21:16:25 +00:00
Eric Christopher
7205f8f510 Remove FIXME. 
llvm-svn: 100466
 2010-04-05 21:14:32 +00:00
Douglas Gregor
394c3bc02e Introduce MaybeOwningPtr, a smart pointer that may (or may not) have 
ownership over the pointer it contains. Useful when we want to
communicate ownership while still having several clients holding on to
the same pointer *without* introducing reference counting.

llvm-svn: 100463
 2010-04-05 21:09:22 +00:00
Jeffrey Yasskin
39cdeee4c3 Fix OProfileJITEventListener build for new DebugLoc. 
llvm-svn: 100461
 2010-04-05 21:09:12 +00:00
Dan Gohman
302746a632 Add a comment. 
llvm-svn: 100459
 2010-04-05 20:24:08 +00:00
Chris Lattner
7d609ea6cb lowering a volatile llvm.memcpy to a libc memcpy is ok. 
PR6779

llvm-svn: 100457
 2010-04-05 20:11:45 +00:00
Dan Gohman
2aff0055c1 Don't do code sinking on unreachable blocks. It's unprofitable and hazardous. 
llvm-svn: 100455
 2010-04-05 19:17:22 +00:00
Dan Gohman
fab42b8e7b Add an isReachableFromEntry to MachineDominators, following the one 
in Dominators.

llvm-svn: 100454
 2010-04-05 19:16:38 +00:00
Tanya Lattner
899c498b79 Update to note that clang has a baseline now. Dropping x86-32 for MacOS. 
llvm-svn: 100447
 2010-04-05 18:35:37 +00:00