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Author SHA1 Message Date
Alexis Hunt
24902a84b1 Fix some stylistic issues with my last commit. 
llvm-svn: 103164
 2010-05-06 05:24:38 +00:00
Dan Gohman
ff6a33e8da Revert r103157, which broke test/CodeGen/ARM/2009-11-30-LiveVariablesBug.ll. 
llvm-svn: 103163
 2010-05-06 05:08:57 +00:00
Eric Christopher
72ca6fc94e Revert r103156 since it was breaking the build bots. 
Reverse-merging r103156 into '.':
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/ARMRegisterInfo.h
U    lib/Target/ARM/ARMBaseRegisterInfo.cpp
U    lib/Target/ARM/ARMBaseInstrInfo.cpp
U    lib/Target/ARM/ARMRegisterInfo.td

llvm-svn: 103159
 2010-05-06 02:29:06 +00:00
Dan Gohman
783a114a69 Handle the case where open(2) or close(2) is interrupted by a signal when 
automatic syscall restarting is disabled.

Also, fix the build on systems which don't define EWOULDBLOCK.

llvm-svn: 103158
 2010-05-06 02:06:20 +00:00
Evan Cheng
b877797172 Fix an obvious bug in isMoveInstr. It needs to return sub-register indices. 
llvm-svn: 103157
 2010-05-06 01:54:03 +00:00
Evan Cheng
f25111f27f Adding pseudo 256-bit registers QQ0 . . . QQ7 to represent pairs of Q registers. These will be used to model VLD2 / VST2 instructions in order to get substantially better codegen for them. 
llvm-svn: 103156
 2010-05-06 01:52:03 +00:00
Evan Cheng
d02b8d33c4 Cosmetic changes. 
llvm-svn: 103155
 2010-05-06 01:34:11 +00:00
Evan Cheng
960323d4a7 storeRegToStackSlot has forgotten about QPR_8 register class. 
llvm-svn: 103154
 2010-05-06 01:32:54 +00:00
Dan Gohman
3a3eadef40 Handle EWOULDBLOCK as EAGAIN. And add a comment explaining why 
EAGAIN and EWOULDBLOCK are used here.

Also, handle the case where a write call is interrupted after
some data has already been written.

llvm-svn: 103153
 2010-05-06 01:27:36 +00:00
Chris Lattner
5fc1e951f6 make -filetype=obj default to emitting its output to foo.obj 
when on windows instead of foo.o.  Patch by Nathan Jeffords!

llvm-svn: 103150
 2010-05-06 00:54:20 +00:00
Dan Gohman
365b0e0f0f Update LabelsBeforeInsn also, when creating unknown-position labels. 
llvm-svn: 103145
 2010-05-06 00:29:41 +00:00
Chris Lattner
014a954e3d Fix PR7054 - Assertion `Symbol->isUndefined() && "Cannot define a symbol twice!"' failed. 
Users can write broken code that emits the same label twice with asm renaming,
detect this and emit a fatal backend error instead of aborting.

llvm-svn: 103140
 2010-05-06 00:05:37 +00:00
Dan Gohman
f7bc83b2ed In bottom-up mode, defer the materialization of local constant values. 
llvm-svn: 103139
 2010-05-06 00:02:14 +00:00
Dan Gohman
180422793f Add an "IsBottomUp" member function to FastISel, which will be used to 
support a new bottom-up mode.

llvm-svn: 103138
 2010-05-05 23:58:35 +00:00
Chris Lattner
ca80f41a4d fix rdar://7946934 - in some limited cases, the assembler should 
allow $ at the start of a symbol name.

llvm-svn: 103137
 2010-05-05 23:51:28 +00:00
Jim Grosbach
e04cc6cb43 Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack 
instructions to subtarget features and update tests to reflect.
PR5717.

llvm-svn: 103136
 2010-05-05 23:44:43 +00:00
Dan Gohman
2f1182c0ac Emit debug info for MachineInstrs with unknown debug locations, instead 
of just letting them inherit the debug locations of adjacent instructions.

Debug info should aim to be either accurate or absent.

llvm-svn: 103135
 2010-05-05 23:41:32 +00:00
Chris Lattner
9a067dd51f Fix some ..'s 
llvm-svn: 103134
 2010-05-05 23:29:09 +00:00
Jakob Stoklund Olesen
2e5d12acfa Fix PR6520. An earlyclobber physreg must not be allocated to anything else. 
llvm-svn: 103133
 2010-05-05 23:07:41 +00:00
Stuart Hastings
edf26ed051 Test case for pr2394 and r102979. 
llvm-svn: 103129
 2010-05-05 22:49:33 +00:00
Sean Callanan
7edf493591 Fixed a sign-extension bug in the X86 disassembler 
that was causing PC-relative branch targets to be
evaluated incorrectly.  Also added support for
checking operand values to the llvm-mc tester.

llvm-svn: 103128
 2010-05-05 22:47:27 +00:00
Devang Patel
041a8fa086 Use getValue() for PHINodes when direct NodeMap access does not work. 
llvm-svn: 103126
 2010-05-05 22:29:00 +00:00
Bob Wilson
5ee6d0b151 Select an ARM-hosted cross build with a separate makefile target instead of 
a magic project name.

llvm-svn: 103125
 2010-05-05 22:22:40 +00:00
Evan Cheng
cfe5f2dba5 Do not pre-allocate references of D registers pairs if they are extracted from the same Q register and are in the right order. 
llvm-svn: 103124
 2010-05-05 22:15:40 +00:00
Jim Grosbach
7eb0b4d646 fix copy/paste oops. 
llvm-svn: 103122
 2010-05-05 21:07:46 +00:00
Dan Gohman
87a1315fce No-ops emitted for scheduling don't correspond with anything in the 
user's source, so don't arbitrarily assign them a debug location.

llvm-svn: 103121
 2010-05-05 20:58:01 +00:00
Jim Grosbach
25fc725b2a Add tests for ARMV7M divide instruction use 
llvm-svn: 103120
 2010-05-05 20:47:15 +00:00
Jim Grosbach
3630aff780 Add initial support for ARMv7M subtarget and cortex-m3 cpu. Patch by 
Jordy <snhjordy@gmail.com>.

Followup patches will add some tests and adjust to use Subtarget features
for the instructions.

llvm-svn: 103119
 2010-05-05 20:44:35 +00:00
Bob Wilson
e4555598a2 Use the right version of "append" to combine two SmallVectors. 
This fixes the compile-time regressions seen in last night's tests.

llvm-svn: 103118
 2010-05-05 20:44:15 +00:00
Jim Grosbach
9b7ae2027f remove unneeded underscores. 
llvm-svn: 103114
 2010-05-05 19:55:58 +00:00
Jim Grosbach
7ea67d346f Convert to filecheck 
llvm-svn: 103113
 2010-05-05 19:41:11 +00:00
Daniel Dunbar
9a3d46162f MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for 
writing them.
 - <rdar://problem/7885351> integrated assembler broken for i386 objc code

llvm-svn: 103112
 2010-05-05 19:01:05 +00:00
Daniel Dunbar
139bd85642 MC: Reject attempts to define a variable symbol. 
llvm-svn: 103111
 2010-05-05 19:01:00 +00:00
Daniel Dunbar
258ede3795 MC: Make setVariableValue check the redefinition condition a bit more strongly. 
llvm-svn: 103110
 2010-05-05 19:00:56 +00:00
Evan Cheng
d7bc27a079 Move REG_SEQUENCE removal to 2addr pass. 
llvm-svn: 103109
 2010-05-05 18:45:40 +00:00
Chris Lattner
b9f858943a Implement rdar://7415680 - Twine integer support lacks greatness 
Microoptimize Twine's with unsigned and int to not pin their value to
the stack.  This saves stack space in common cases and allows mem2reg
in the caller.  A simple example is:

void foo(const Twine &);
void bar(int x) {
  foo("xyz: " + Twine(x));
}

Before:

__Z3bari:
	subq	$40, %rsp
	movl	%edi, 36(%rsp)
	leaq	L_.str3(%rip), %rax
	leaq	36(%rsp), %rcx
	leaq	8(%rsp), %rdi
	movq	%rax, 8(%rsp)
	movq	%rcx, 16(%rsp)
	movb	$3, 24(%rsp)
	movb	$7, 25(%rsp)
	callq	__Z3fooRKN4llvm5TwineE
	addq	$40, %rsp
	ret

After:

__Z3bari:
	subq	$24, %rsp
	leaq	L_.str3(%rip), %rax
	movq	%rax, (%rsp)
	movslq	%edi, %rax
	movq	%rax, 8(%rsp)
	movb	$3, 16(%rsp)
	movb	$7, 17(%rsp)
	leaq	(%rsp), %rdi
	callq	__Z3fooRKN4llvm5TwineE
	addq	$24, %rsp
	ret

It saves 16 bytes of stack and one instruction in this case.

llvm-svn: 103107
 2010-05-05 18:40:33 +00:00
Jeffrey Yasskin
421cf94ea0 Rearrange the suppressions files to be by-architecture instead of by-problem. 
ddunbar says the gcc-4.3.3 suppressions are obsolete.

llvm-svn: 103106
 2010-05-05 18:39:16 +00:00
Evan Cheng
6a76e7d9ae Model CONCAT_VECTORS of two 64-bit values as a REG_SEQUENCE. 
llvm-svn: 103104
 2010-05-05 18:28:36 +00:00
Evan Cheng
c4f818b682 Trim include. 
llvm-svn: 103103
 2010-05-05 18:27:57 +00:00
Evan Cheng
25c07ac593 Teach liveintervalanalysis about virtual registers which are defined by reg_sequence instructions that are formed by registers defined by distinct instructions. e.g. 
80      %reg1041:6<def> = VSHRNv4i16 %reg1034<kill>, 12, pred:14, pred:%reg0
. . .
120     %reg1041:5<def> = VSHRNv4i16 %reg1039<kill>, 12, pred:14, pred:%reg0

llvm-svn: 103102
 2010-05-05 18:27:40 +00:00
Jeffrey Yasskin
be201cecc8 Add a suppressions file for an intermittent "leak" under RegisterPass. 
llvm-svn: 103100
 2010-05-05 18:15:26 +00:00
Daniel Dunbar
d2ac9dc48b MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
llvm-svn: 103095
 2010-05-05 17:41:00 +00:00
Daniel Dunbar
f5dc70a7d1 MC/Mach-O/x86_64: Relocations in debug sections should use local relocations 
when possible.
 - <rdar://problem/7934873>

llvm-svn: 103092
 2010-05-05 17:22:39 +00:00
Daniel Dunbar
772b9002e7 lit: Allow test_format to be None. 
llvm-svn: 103091
 2010-05-05 17:22:35 +00:00
Benjamin Kramer
8712466dd6 Try again if write(2) reports an recoverable error. 
This should fix mysteriously crashing boost regression tests when stderr is
managed by bjam (PR7043).

llvm-svn: 103085
 2010-05-05 15:17:47 +00:00
Shantonu Sen
7e52958e05 Add newline to end of file to avoid warning 
when building llvm with clang

llvm-svn: 103084
 2010-05-05 13:56:46 +00:00
Eric Christopher
e7a5ba0051 Revert 102941, we're going to do this via attr and can just 
hack the code to turn it off when debugging.

llvm-svn: 103083
 2010-05-05 07:35:59 +00:00
Alexis Hunt
f4d5520f79 Include the right header for toupper 
llvm-svn: 103073
 2010-05-05 04:31:44 +00:00
Alexis Hunt
55ae7d6b53 Add an emitter to handle the list of clang statement nodes. 
llvm-svn: 103071
 2010-05-05 04:13:08 +00:00
Bob Wilson
e81252b747 Combine the implementations of the core part of the SSAUpdater and 
MachineSSAUpdater to avoid duplicating all the code.

llvm-svn: 103060
 2010-05-04 23:18:19 +00:00