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70667 Commits

Author SHA1 Message Date
Andrew Trick e44f0d94f6 whitespace 
llvm-svn: 127837
 2011-03-17 23:46:48 +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
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
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
Richard Osborne 6120962d7d Add XCore intrinsic for setpsc. 
llvm-svn: 127821
 2011-03-17 18:42:05 +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
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
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
Nick Lewycky 881e1871dd Add "swi" which is an obsolete mnemonic for "svc". 
llvm-svn: 127788
 2011-03-17 01:46:14 +00:00
Eli Friedman e8f2be0c10 A couple new README entries. 
llvm-svn: 127786
 2011-03-17 01:22:09 +00:00
Rafael Espindola b39c7c7b17 Add support in the LTO library for loading an object from the middle 
of an file.

llvm-svn: 127781
 2011-03-17 00:36:11 +00:00
Joerg Sonnenberger 07de07eeea Fix handling of @IDNTPOFF relocations, they need to get STT_TLS. 
While here, add VK_ARM_TPOFF and VK_ARM_GOTTPOFF, too.

llvm-svn: 127780
 2011-03-17 00:35:10 +00:00
Jakob Stoklund Olesen 315b42c354 Rewrite instructions as part of ConnectedVNInfoEqClasses::Distribute. 
llvm-svn: 127779
 2011-03-17 00:23:45 +00:00
NAKAMURA Takumi 5b6198dfb9 test/CodeGen/X86/constant-pool-remat-0.ll: FileCheck-ize and add explicit -mtriple=x86_64-linux. 
llvm-svn: 127775
 2011-03-16 23:01:31 +00:00
Jakob Stoklund Olesen e14b2b226f Add a LiveRangeEdit delegate callback before shrinking a live range. 
The register allocator needs to adjust its live interval unions when that happens.

llvm-svn: 127774
 2011-03-16 22:56:16 +00:00
Jakob Stoklund Olesen c738c96519 Erase virtual registers that are unused after DCE. 
llvm-svn: 127773
 2011-03-16 22:56:13 +00:00
Jakob Stoklund Olesen e29d63e98a Tag cached interference with a user-provided tag instead of the virtual register number. 
The live range of a virtual register may change which invalidates the cached
interference information.

llvm-svn: 127772
 2011-03-16 22:56:11 +00:00
Jakob Stoklund Olesen 557a82c099 Clarify debugging output. 
llvm-svn: 127771
 2011-03-16 22:56:08 +00:00
Cameron Zwarich ac106273d4 The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byte 
rather than an int. Thankfully, this only causes LLVM to miss optimizations, not
generate incorrect code.

This just fixes the zext at the return. We still insert an i32 ZextAssert when
reading a function's arguments, but it is followed by a truncate and another i8
ZextAssert so it is not optimized.

llvm-svn: 127766
 2011-03-16 22:20:18 +00:00
Cameron Zwarich 40a9200357 Rename a test to be more inclusive. 
llvm-svn: 127765
 2011-03-16 22:20:12 +00:00
Cameron Zwarich d1ad9bc277 Don't recompute something that we already have in a local variable. 
llvm-svn: 127764
 2011-03-16 22:20:07 +00:00
Daniel Dunbar fd95b016fb Revert r127757, "Patch to a fix dwarf relocation problem on ARM. One-line fix 
plus the test where it used to break.", which broke Clang self-host of a
Debug+Asserts compiler, on OS X.

llvm-svn: 127763
 2011-03-16 22:16:39 +00:00
Richard Osborne c871eff3f5 Add XCore intrinsics for setclk, setrdy. 
llvm-svn: 127761
 2011-03-16 21:56:00 +00:00
Renato Golin a3aeafeb35 Patch to a fix dwarf relocation problem on ARM. One-line fix plus the test where it used to break. 
llvm-svn: 127757
 2011-03-16 21:05:52 +00:00
Cameron Zwarich 49e354bcb6 Add a test for i1 zeroext arguments on x86-64. We currently generate code that 
conforms to the ABI, but DAGCombine could in theory recognize the sequence of
zext asserts and truncates and generate incorrect code.

llvm-svn: 127754
 2011-03-16 20:15:44 +00:00
Richard Osborne d4346f2388 Add checkevent intrinsic to check if any resources owned by the current thread 
can event.

llvm-svn: 127741
 2011-03-16 18:34:00 +00:00
NAKAMURA Takumi d60e4101e6 test/CodeGen/X86: FileCheck-ize and add actions for x86_64-linux and x86_64-win32. 
llvm-svn: 127734
 2011-03-16 13:53:07 +00:00
NAKAMURA Takumi 0b9e2b0257 test/CodeGen/X86: Add a pattern for Win64. 
llvm-svn: 127733
 2011-03-16 13:52:51 +00:00
NAKAMURA Takumi c10801e8a5 test/CodeGen/X86: FileCheck-ize and add explicit -mtriple=x86_64-linux. They are useless to Win64 target. 
llvm-svn: 127732
 2011-03-16 13:52:38 +00:00
NAKAMURA Takumi 662892df27 test/CodeGen/X86/byval*.ll: Win64 has not supported byval yet. 
llvm-svn: 127731
 2011-03-16 13:52:20 +00:00
NAKAMURA Takumi 406f02c9ea test/CodeGen/X86/dyn-stackalloc.ll: FileCheck-ize. 
llvm-svn: 127730
 2011-03-16 13:52:08 +00:00
Cameron Zwarich 7599b106b7 Fix a comment. 
llvm-svn: 127728
 2011-03-16 08:13:42 +00:00
NAKAMURA Takumi 76e68ea916 lib/Support/raw_ostream.cpp: On mingw, report_fatal_error() should not be called at dtor context. 
report_fatal_error() invokes exit(). We know report_fatal_error() might not write messages to stderr when any errors were detected on FD == 2.

llvm-svn: 127726
 2011-03-16 02:53:39 +00:00
NAKAMURA Takumi a3d4749e24 Windows/PathV2.inc: [PR8520] Recognize "NUL" as special (character) file. 
FIXME: It is a temporal hack. We should detect as many "special file name" as possible.
llvm-svn: 127724
 2011-03-16 02:53:32 +00:00
NAKAMURA Takumi aaa9b4f824 Windows/Path.inc: [PR6270] PathV1::makeUnique(): Give arbitrary initial seed for workaround. 
FIXME: We should use sys::fs::unique_file() in future.
llvm-svn: 127723
 2011-03-16 02:53:24 +00:00
Jim Grosbach c91fa6d19f Tidy up. Whitespace and 80 column. 
llvm-svn: 127721
 2011-03-16 01:21:55 +00:00
Devang Patel 39c041cae7 Do not accidently initialize NumDbgValueLost and NumDbgLineLost counts. 
llvm-svn: 127720
 2011-03-16 00:27:57 +00:00
Cameron Zwarich 0454253d7a Only convert allocas to scalars if it is profitable. The profitability metric I 
chose is having a non-memcpy/memset use and being larger than any native integer
type. Originally I chose having an access of a size smaller than the total size
of the alloca, but this caused some minor issues on the spirit benchmark where
SRoA runs again after some inlining.

This fixes <rdar://problem/8613163>.

llvm-svn: 127718
 2011-03-16 00:13:44 +00:00
Cameron Zwarich 7b0f3c6a1a Add native integer type TargetData to some existing tests. 
llvm-svn: 127717
 2011-03-16 00:13:40 +00:00
Cameron Zwarich b51c830f7c Better use initializer lists. 
llvm-svn: 127716
 2011-03-16 00:13:37 +00:00