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102688 Commits

Author SHA1 Message Date
Rafael Espindola 7c9cc46165 Check RequiresNullTerminator first, or we might read from an invalid address. 
llvm-svn: 127853
 2011-03-18 02:55:51 +00:00
Eli Friedman 1a916a3c0c Add a target-specific branchless method for double-width relational 
comparisons on x86.  Essentially, the way this works is that SUB+SBB sets
the relevant flags the same way a double-width CMP would.

This is a substantial improvement over the generic lowering in LLVM. The output
is also shorter than the gcc-generated output; I haven't done any detailed
benchmarking, though.

llvm-svn: 127852
 2011-03-18 02:34:11 +00:00
Ted Kremenek 4422bfea50 Use CrashRecoveryContextCleanup objects to recover an ASTUnit if we crash in ASTUnit::LoadFromCommandLine() and ASTUnit::LoadFromCompilerInvocation(). 
llvm-svn: 127851
 2011-03-18 02:06:56 +00:00
Ted Kremenek 750028b6f4 Use CrashRecoveryContextCleanup objects to release resources associated with Sema during a crash while parsing. 
llvm-svn: 127850
 2011-03-18 02:06:53 +00:00
Ted Kremenek c44d3cf581 Augment CrashRecoveryContext to have registered "cleanup" objects that can be used to release resources during a crash. 
llvm-svn: 127849
 2011-03-18 02:05:11 +00:00
Ken Dyck a1b35109cf Convert alignment values to CharUnits. No change in functionality intended. 
llvm-svn: 127848
 2011-03-18 01:26:17 +00:00
Eli Friedman 84fc495599 Add some svn:ignore properties. 
llvm-svn: 127847
 2011-03-18 01:24:16 +00:00
Ken Dyck 33fa9ee4fd Convert getSizeInBytes() to getSizeInChars(), which returns its result in 
CharUnits. No change in functionality intended.

llvm-svn: 127846
 2011-03-18 01:12:13 +00:00
Eli Friedman c17c9a78aa FileCheck-ize and update test. 
llvm-svn: 127845
 2011-03-18 01:10:31 +00:00
Ken Dyck 4e54dcaca1 Convert variables to CharUnits in ConvertStructToPacked(). No change in 
functionality intended.

llvm-svn: 127844
 2011-03-18 00:55:06 +00:00
Johnny Chen e387f8a5e9 The disassembler for Thumb was wrongly adding 4 to the computed imm32 offset. 
Remove the offending logic and update the test cases.

llvm-svn: 127843
 2011-03-18 00:38:03 +00:00
Andrew Trick f8f67f0188 Remove TargetData and ValueTracking includes. I didn't mean for them to sneak in my last checkin. 
llvm-svn: 127842
 2011-03-18 00:36:39 +00:00
Jim Ingham b7603bb48d Relax the constraint on the types of ValueObjects that we'll by default try the 
ObjC runtime for print object to Pointer AND Integer (from just pointer.)

llvm-svn: 127841
 2011-03-18 00:05:18 +00:00
Owen Anderson 38aa83fa24 There are two pseudos in this case that are Thumb mode, not one. 
llvm-svn: 127840
 2011-03-17 23:52:05 +00:00
Andrew Trick 87716c93c2 Added isValidRewrite() to check the result of ScalarEvolutionExpander. 
SCEV may generate expressions composed of multiple pointers, which can
lead to invalid GEP expansion. Until we can teach SCEV to follow strict
pointer rules, make sure no bad GEPs creep into IR.
Fixes rdar://problem/9038671.

llvm-svn: 127839
 2011-03-17 23:51:11 +00:00
Caroline Tice 4c753376cb Make all the codee that attempts to read the PC consistently use 
ReadCoreReg (which 'does the right thing', adding to pc when needed);
fixed places in code where extra addition was being passed along.

Fix bug in insn tables.

llvm-svn: 127838
 2011-03-17 23:50:16 +00:00
Andrew Trick e44f0d94f6 whitespace 
llvm-svn: 127837
 2011-03-17 23:46:48 +00:00
Daniel Dunbar c44f8cf7b8 Driver/Obj-C: Be compatible with GCC behavior in that -fno-exceptions *does not* 
disable Obj-C exceptions.

llvm-svn: 127836
 2011-03-17 23:28:31 +00:00
Rafael Espindola ab959a2e68 Use RequiresNullTerminator to create buffers without a null terminator 
instead of copying.

llvm-svn: 127835
 2011-03-17 22:18:42 +00:00
Devang Patel aad34d882d Try to not lose variable's debug info during instcombine. 
This is done by lowering dbg.declare intrinsic into dbg.value intrinsic.
Radar 9143931.

llvm-svn: 127834
 2011-03-17 22:18:16 +00:00
Johnny Chen 221a014ea3 It used to be that t_addrmode_s4 was used for both: 
o A8.6.195 STR (register) -- Encoding T1
o A8.6.193 STR (immediate, Thumb) -- Encoding T1

It has been changed so that now they use different addressing modes
and thus different MC representation (Operand Infos).  Modify the
disassembler to reflect the change, and add relevant tests.

llvm-svn: 127833
 2011-03-17 22:04:05 +00:00
Devang Patel 8c0b16b0aa Refactor into a separate utility function. 
llvm-svn: 127832
 2011-03-17 21:58:19 +00:00
Jim Ingham 8268ccab60 Fix a problem where we were looking up the class pointer in the {class/sel -> implementation} cache for a objc_msgSendSuper call - where we should have looked up the class's super-class. 
llvm-svn: 127830
 2011-03-17 21:04:33 +00:00
Benjamin Kramer cfcea12fe2 BuildUDIV: If the divisor is even we can simplify the fixup of the multiplied value by introducing an early shift. 
This allows us to compile "unsigned foo(unsigned x) { return x/28; }" into
	shrl	$2, %edi
	imulq	$613566757, %rdi, %rax
	shrq	$32, %rax
	ret

instead of
	movl    %edi, %eax
	imulq   $613566757, %rax, %rcx
	shrq    $32, %rcx
	subl    %ecx, %eax
	shrl    %eax
	addl    %ecx, %eax
	shrl    $4, %eax

on x86_64

llvm-svn: 127829
 2011-03-17 20:39:14 +00:00
Benjamin Kramer 09a51bab5d Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number. 
This will come in handy soon.

llvm-svn: 127828
 2011-03-17 20:39:06 +00:00
Jakob Stoklund Olesen 8630840c30 Dead code elimination may separate the live interval into multiple connected components. 
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.

llvm-svn: 127827
 2011-03-17 20:37:07 +00:00
Jim Ingham 35944dda10 Get ObjC stepping working again when the process is not the default host architecture. 
llvm-svn: 127825
 2011-03-17 20:02:56 +00:00
Stuart Hastings ec54bd755f Reapply: Add type output to llvm-dis annotations. Patch by Yuri! 
llvm-svn: 127824
 2011-03-17 19:50:04 +00:00
Johnny Chen 0d825132c6 Tidy up the input file given to 'llvm-mc -disassemble' and also append the gdb 
assembler code to the memory dump.

llvm-svn: 127823
 2011-03-17 19:05:34 +00:00
Oscar Fuentes 73963b67c1 Fix some issues with include directories: remove a duplicate and put 
Clang binary and source directories first (on that order).

llvm-svn: 127822
 2011-03-17 19:03:04 +00:00
Richard Osborne 6120962d7d Add XCore intrinsic for setpsc. 
llvm-svn: 127821
 2011-03-17 18:42:05 +00:00
Daniel Dunbar 033a4bc49e Driver/Darwin: These are command line options, not target features. 
llvm-svn: 127820
 2011-03-17 18:29:04 +00:00
Daniel Dunbar 1d733e2d7e Driver/Darwin: Suppress spurious warning about -force_cpusubtype_ALL. 
llvm-svn: 127819
 2011-03-17 17:37:29 +00:00
Daniel Dunbar c9388c11f1 Driver/Darwin/ARM: Kernel/kext code has more strict alignment requirements. 
llvm-svn: 127815
 2011-03-17 17:10:06 +00:00
Stuart Hastings ead01c40e1 Revert 127813 while fixing broken test. 
llvm-svn: 127814
 2011-03-17 16:54:27 +00:00
Stuart Hastings 8e08a786bf Add type output to llvm-dis. Patch by Yuri! 
llvm-svn: 127813
 2011-03-17 16:30:14 +00:00
Daniel Dunbar f1d62cfc8f MC/Mach-O: Fix regression introduced in r126127, this assignment shouldn't have 
been removed.

llvm-svn: 127812
 2011-03-17 16:25:24 +00:00
Richard Smith 9647d3ca02 Fix PR9488: 'auto' type substitution can fail (for instance, if it creates a reference-to-void type). Don't crash if it does. 
Also fix an issue where type source information for the resulting type was being lost.

llvm-svn: 127811
 2011-03-17 16:11:59 +00:00
Cameron Zwarich 2ef0c69df1 Move more logic into getTypeForExtArgOrReturn. 
llvm-svn: 127809
 2011-03-17 14:53:37 +00:00
Cameron Zwarich 341c36dc8b Change the signext language in LangRef to closer match zeroext. 
llvm-svn: 127808
 2011-03-17 14:21:58 +00:00
Cameron Zwarich 34e7b3f77e Rename getTypeForExtendedInteger() to getTypeForExtArgOrReturn(). 
llvm-svn: 127807
 2011-03-17 14:21:56 +00:00
David Chisnall a9e5460f03 Remove code that was intentionally generating bad code on the GNU runtime for no reason (failing to emit .cxx_constructor / .cxx_destructor methods). 
llvm-svn: 127806
 2011-03-17 14:19:08 +00:00
Ted Kremenek 65ccd1d9b0 Fix test to test the right thing. 
llvm-svn: 127803
 2011-03-17 05:34:58 +00:00
Ted Kremenek 2551fbe928 Don't construct two CFGs just to run -Wuninitialized. While this causes new warnings to be flagged under -Wconditional-uninitialized, this is something we 
can improve over time.

llvm-svn: 127802
 2011-03-17 05:29:57 +00:00
Nick Lewycky b4d763b37d Add comments for the demanglings. Correct mangled form of operator delete! 
llvm-svn: 127801
 2011-03-17 05:20:12 +00:00
NAKAMURA Takumi bf9ff6f63b test/CodeGen/X86/h-registers-1.ll: Add explicit -mtriple=x86_64-linux. It does not need to be checked on x86_64-win32 (aka Win64). 
llvm-svn: 127800
 2011-03-17 04:24:40 +00:00
Ted Kremenek 97d8d03855 Make test more portable. 
llvm-svn: 127799
 2011-03-17 04:16:45 +00:00
Ted Kremenek 70727343cf Teach VariadicMethodTypeChecker about pointers attributed as 'NSObject'. 
llvm-svn: 127798
 2011-03-17 04:10:25 +00:00
Ted Kremenek 6fa1daede5 Teach VariadicMethodTypeChecker that CF references are valid arguments to variadic Objective-C methods. 
llvm-svn: 127797
 2011-03-17 04:01:35 +00:00
Ted Kremenek 3e5ad5932e Tweak RegionStore's handling of lazy compound values to use the 'Default' versus 'Direct' binding key, thus allowing specific elements of an array/struct to be overwritten without 
invalidating the entire binding.  Fixes PR 9455.

llvm-svn: 127796
 2011-03-17 03:51:51 +00:00