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Author SHA1 Message Date
Benjamin Kramer
a85996c235 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
047a25b0b0 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
ab87d41b43 Reapply: Add type output to llvm-dis annotations. Patch by Yuri! 
llvm-svn: 127824
 2011-03-17 19:50:04 +00:00
Richard Osborne
6bad79b514 Add XCore intrinsic for setpsc. 
llvm-svn: 127821
 2011-03-17 18:42:05 +00:00
Stuart Hastings
da553eb3ef Revert 127813 while fixing broken test. 
llvm-svn: 127814
 2011-03-17 16:54:27 +00:00
Stuart Hastings
b1ced0cb9e Add type output to llvm-dis. Patch by Yuri! 
llvm-svn: 127813
 2011-03-17 16:30:14 +00:00
Daniel Dunbar
0e9d7aeb1f 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
cea63dc052 Move more logic into getTypeForExtArgOrReturn. 
llvm-svn: 127809
 2011-03-17 14:53:37 +00:00
Cameron Zwarich
0f031dccab Change the signext language in LangRef to closer match zeroext. 
llvm-svn: 127808
 2011-03-17 14:21:58 +00:00
Cameron Zwarich
a5746339cc Rename getTypeForExtendedInteger() to getTypeForExtArgOrReturn(). 
llvm-svn: 127807
 2011-03-17 14:21:56 +00:00
Nick Lewycky
50afb5a262 Add comments for the demanglings. Correct mangled form of operator delete! 
llvm-svn: 127801
 2011-03-17 05:20:12 +00:00
NAKAMURA Takumi
0639b29656 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
9dac4ea71f Add "swi" which is an obsolete mnemonic for "svc". 
llvm-svn: 127788
 2011-03-17 01:46:14 +00:00
Eli Friedman
dcc256df41 A couple new README entries. 
llvm-svn: 127786
 2011-03-17 01:22:09 +00:00
Rafael Espindola
8dab9a762b 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
e37bdf4386 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
2786187b43 Rewrite instructions as part of ConnectedVNInfoEqClasses::Distribute. 
llvm-svn: 127779
 2011-03-17 00:23:45 +00:00
NAKAMURA Takumi
8d08700d77 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
5c0d2aecc5 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
8751b4e276 Erase virtual registers that are unused after DCE. 
llvm-svn: 127773
 2011-03-16 22:56:13 +00:00
Jakob Stoklund Olesen
940b7d46d3 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
7b60f4161a Clarify debugging output. 
llvm-svn: 127771
 2011-03-16 22:56:08 +00:00
Cameron Zwarich
2bb1e45ea3 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
005920cae9 Rename a test to be more inclusive. 
llvm-svn: 127765
 2011-03-16 22:20:12 +00:00
Cameron Zwarich
860d06739b 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
8757b8c000 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
8b90369d96 Add XCore intrinsics for setclk, setrdy. 
llvm-svn: 127761
 2011-03-16 21:56:00 +00:00
Renato Golin
bf788a5626 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
05eb0080d6 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
318e25c620 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
7fd500c31d 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
aa13f3550e test/CodeGen/X86: Add a pattern for Win64. 
llvm-svn: 127733
 2011-03-16 13:52:51 +00:00
NAKAMURA Takumi
e776f16e9d 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
bfbbe15937 test/CodeGen/X86/byval*.ll: Win64 has not supported byval yet. 
llvm-svn: 127731
 2011-03-16 13:52:20 +00:00
NAKAMURA Takumi
73a9789e43 test/CodeGen/X86/dyn-stackalloc.ll: FileCheck-ize. 
llvm-svn: 127730
 2011-03-16 13:52:08 +00:00
Cameron Zwarich
c60b47a7e2 Fix a comment. 
llvm-svn: 127728
 2011-03-16 08:13:42 +00:00
NAKAMURA Takumi
341bf54557 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
bcbcf099b4 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
042801b7d2 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
c68c99f640 Tidy up. Whitespace and 80 column. 
llvm-svn: 127721
 2011-03-16 01:21:55 +00:00
Devang Patel
f0148aca2e Do not accidently initialize NumDbgValueLost and NumDbgLineLost counts. 
llvm-svn: 127720
 2011-03-16 00:27:57 +00:00
Cameron Zwarich
7fd94ea393 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
68f72463eb Add native integer type TargetData to some existing tests. 
llvm-svn: 127717
 2011-03-16 00:13:40 +00:00
Cameron Zwarich
88790f3d4d Better use initializer lists. 
llvm-svn: 127716
 2011-03-16 00:13:37 +00:00
Cameron Zwarich
f09bb5f2f5 Add a clarifying comment. 
llvm-svn: 127715
 2011-03-16 00:13:35 +00:00
Cameron Zwarich
96e380e650 Add TargetData::fitsInLegalInteger(). 
llvm-svn: 127714
 2011-03-16 00:13:28 +00:00
Johnny Chen
e88573849d There were two issues fixed: 
1. The ARM Darwin *r9 call instructions were pseudo-ized recently.
   Modify the ARMDisassemblerCore.cpp file to accomodate the change.

2. The disassembler was unnecessarily adding 8 to the sign-extended imm24:

   imm32 = SignExtend(imm24:'00', 32); // A8.6.23 BL, BLX (immediate)
                                       // Encoding A1

   It has no business doing such.  Removed the offending logic.

Add test cases to arm-tests.txt.

llvm-svn: 127707
 2011-03-15 22:27:33 +00:00
John Thompson
da294e31da Add scei vendor 
llvm-svn: 127705
 2011-03-15 21:51:56 +00:00
Bill Wendling
c12aadb9b6 The VTBL (and VTBX) instructions are rather permissive concerning the masks they 
accept. If a value in the mask is out of range, it uses the value 0, for VTBL,
or leaves the value unchanged, for VTBX.

llvm-svn: 127700
 2011-03-15 21:15:20 +00:00
Jakob Stoklund Olesen
26ac368165 Trace back through sibling copies to hoist spills and find rematerializable defs. 
After live range splitting, an original value may be available in multiple
registers. Tracing back through the registers containing the same value, find
the best place to insert a spill, determine if the value has already been
spilled, or discover a reaching def that may be rematerialized.

This is only the analysis part. The information is not used for anything yet.

llvm-svn: 127698
 2011-03-15 21:13:25 +00:00