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Author SHA1 Message Date
Johnny Chen
14f091b6ab 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
a4b86e96b1 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
Owen Anderson
0753b79795 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
07887af00c 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
Andrew Trick
17df72f60b whitespace 
llvm-svn: 127837
 2011-03-17 23:46:48 +00:00
Rafael Espindola
3ecf930d14 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
f8c3eb7368 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
41abb5b0f7 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
3506f02e33 Refactor into a separate utility function. 
llvm-svn: 127832
 2011-03-17 21:58:19 +00:00
Benjamin Kramer
52ffb6ea96 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
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