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Author SHA1 Message Date
Eli Friedman
a1d8196452 Avoid undefined behavior in signed integer negation. Patch by Ahmed Charles. 
llvm-svn: 141905
 2011-10-13 22:49:56 +00:00
Eli Friedman
74b48114e3 Simplify and avoid undefined shift. Based on patch by Ahmed Charles. 
llvm-svn: 141903
 2011-10-13 22:40:23 +00:00
Michael J. Spencer
10caa055b0 ELF: Fix the section that relocations apply to. Add test to verify. Patch by Danil Malyshev! 
llvm-svn: 141901
 2011-10-13 22:30:10 +00:00
Michael J. Spencer
4ee36e15ad llvm-object: Add inline relocation information to disassembly. 
llvm-svn: 141897
 2011-10-13 22:17:18 +00:00
Eli Friedman
e702d68556 Enhance the memdep interface so that users can tell the difference between a dependency which cannot be calculated and a path reaching the entry point of the function. This patch introduces isNonFuncLocal, which replaces isUnknown in some cases. 
Patch by Xiaoyi Guo.

llvm-svn: 141896
 2011-10-13 22:14:57 +00:00
Andrew Trick
923129b028 Reapply r141870, SCEV expansion of post-inc. 
Speculatively reapply to see if this test case still crashes on
linux. I may have fixed it in my last checkin.

llvm-svn: 141895
 2011-10-13 21:55:29 +00:00
Eric Christopher
0ffa8593b3 Don't forget to reconstruct D after changing the scope that we're 
looking at.

llvm-svn: 141892
 2011-10-13 21:43:44 +00:00
Richard Osborne
72a63ff457 Update IntrinsicsXCore.td with the normal LLVM notice at the top of the file. 
llvm-svn: 141889
 2011-10-13 21:08:11 +00:00
Michael J. Spencer
309e0cb513 llvm-objdump: Fix whitespace. 
llvm-svn: 141886
 2011-10-13 20:37:20 +00:00
Michael J. Spencer
fa3f63c14a llvm-objdump: Fix dumping of multiple symbols with the same address. 
This happens in COFF because there is a symbol for the beginning of each
section.

llvm-svn: 141885
 2011-10-13 20:37:08 +00:00
Michael J. Spencer
9a10012151 COFF: Implement sectionContainsSymbol for relocatable files only. 
llvm-svn: 141884
 2011-10-13 20:36:54 +00:00
Andrew Trick
03cd1b6a5d Fix memory corruption I introduced a few checkins ago. 
Self-review easily caught this obvious bug.

llvm-svn: 141880
 2011-10-13 18:49:23 +00:00
NAKAMURA Takumi
0a86c2d187 configure: [cygming] Set --disable-embed-stdcxx by default on --enable-shared. 
Many distros provide stdc++.dll recently. --enable-embed-stdcxx might confuse people.

llvm-svn: 141875
 2011-10-13 18:04:52 +00:00
Owen Anderson
9f90e2252c SETEND is not allowed in an IT block. 
llvm-svn: 141874
 2011-10-13 17:58:39 +00:00
Andrew Trick
109f7dbd1e Revert r141870. The test case crashes on linux with data corruption. A deeper issue was exposed. 
llvm-svn: 141873
 2011-10-13 17:58:24 +00:00
NAKAMURA Takumi
ca62ac7536 docs/CMake.html: Clarify LLVM_LIT_TOOLS_DIR as :PATH. 
llvm-svn: 141872
 2011-10-13 17:36:02 +00:00
Michael J. Spencer
fe0e806423 Fix incorrect ELF typedefs. 
llvm-svn: 141871
 2011-10-13 17:33:52 +00:00
Andrew Trick
05d7cb17d5 LSR: Reuse the post-inc expansion of expressions. 
This avoids unnecessary expansion of expressions and allows the SCEV
expander to work on expression DAGs, not just trees.
Fixes PR11090.

llvm-svn: 141870
 2011-10-13 17:31:47 +00:00
Daniel Dunbar
86b464dff5 build: Remove some stray LLVMC configure variables. 
llvm-svn: 141869
 2011-10-13 17:27:34 +00:00
Andrew Trick
38d4b87695 SCEV: Rewrite TrandformForPostIncUse to handle expression DAGs, not 
just expression trees.

Partially fixes PR11090. Test case will be with the full fix.

llvm-svn: 141868
 2011-10-13 17:21:09 +00:00
Andrew Trick
5286636188 Slightly more useful tracing. 
llvm-svn: 141867
 2011-10-13 17:06:38 +00:00
Benjamin Kramer
a705595096 Force CPU type on test so it doesn't accidentally emit movbe instead of bswap on Intel Atom CPUs. 
llvm-svn: 141863
 2011-10-13 14:27:54 +00:00
Kalle Raiskila
15993a5d28 Mark 'branch indirect' instruction as an indirect branch. 
Not having it confused assembly printing of jumptables.

llvm-svn: 141862
 2011-10-13 11:40:03 +00:00
Bill Wendling
dcd9c25744 More closely follow libgcc, which has code after the `ret' instruction to 
release the stack segment and reset the stack pointer. Place the code in its own
MBB to make the verifier happy.

llvm-svn: 141859
 2011-10-13 08:24:19 +00:00
Bill Wendling
2a571af745 Revert r141854 because it was causing failures: 
http://lab.llvm.org:8011/builders/llvm-x86_64-linux/builds/101

--- Reverse-merging r141854 into '.':
U    test/MC/Disassembler/X86/x86-32.txt
U    test/MC/Disassembler/X86/simple-tests.txt
D    test/CodeGen/X86/bmi.ll
U    lib/Target/X86/X86InstrInfo.td
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86.td
U    lib/Target/X86/X86Subtarget.h

llvm-svn: 141857
 2011-10-13 07:48:07 +00:00
Bill Wendling
a6bf25f30a Should not add instructions to a BB after a return instruction. The machine instruction verifier doesn't like this, nor do I. 
llvm-svn: 141856
 2011-10-13 07:42:32 +00:00
Cameron Zwarich
fcbdff2af3 Use an existing method. 
llvm-svn: 141855
 2011-10-13 07:36:41 +00:00
Craig Topper
eb29e18c9b Add X86 TZCNT instruction and patterns to select it. Also added core-avx2 processor which is gcc's name for Haswell. 
llvm-svn: 141854
 2011-10-13 07:09:14 +00:00
Craig Topper
0d25fa802f Add 'implicit EFLAGS' to patterns for popcnt and lzcnt 
llvm-svn: 141853
 2011-10-13 06:18:52 +00:00
Nick Lewycky
70cfa65b6b Elf_Word is not POD! Stop using it in a DenseMap. 
llvm-svn: 141851
 2011-10-13 03:30:21 +00:00
Nick Lewycky
714cb9cf31 If MI is deleted then remove it from the set. If a new MI is created, it could 
have the same address as the one we deleted, and we don't want that in the set
yet. Noticed by inspection.

llvm-svn: 141849
 2011-10-13 02:16:18 +00:00
Nick Lewycky
f4037f6420 Tabs to spaces. 
llvm-svn: 141844
 2011-10-13 01:09:50 +00:00
Nick Lewycky
157477efa7 Add missing braces to pacify GCC's -Wparentheses. 
llvm-svn: 141842
 2011-10-13 00:54:59 +00:00
Michael J. Spencer
162052e2b2 Add missing ELF constants. 
llvm-svn: 141840
 2011-10-13 00:16:25 +00:00
Jakob Stoklund Olesen
f38db50fed Also inflate register classes around inline asm. 
Now that MI->getRegClassConstraint() can also handle inline assembly,
don't bail when recomputing the register class of a virtual register
used by inline asm.

This fixes PR11078.

llvm-svn: 141836
 2011-10-12 23:37:40 +00:00
Jakob Stoklund Olesen
9349890ed8 Add MachineInstr::getRegClassConstraint(). 
Most instructions have some requirements for their register operands.
Usually, this is expressed as register class constraints in the
MCInstrDesc, but for inline assembly the constraints are encoded in the
flag words.

llvm-svn: 141835
 2011-10-12 23:37:36 +00:00
Jakob Stoklund Olesen
d406c95461 Extract a method for finding the inline asm flag operand. 
llvm-svn: 141834
 2011-10-12 23:37:33 +00:00
Jakob Stoklund Olesen
3d62f52b22 Encode register class constreaints in inline asm instructions. 
The inline asm operand constraint is initially encoded in the virtual
register for the operand, but that register class may change during
coalescing, and the original constraint is lost.

Encode the original register class as part of the flag word for each
inline asm operand.  This makes it possible to recover the actual
constraint required by inline asm, just like we can for normal
instructions.

llvm-svn: 141833
 2011-10-12 23:37:29 +00:00
Eli Friedman
b70efeb6fc Attempt to fix MSVC build. 
llvm-svn: 141831
 2011-10-12 23:14:41 +00:00
Bill Wendling
60bfb5d707 We need to verify that the machine instruction we're using as a replacement for 
our current machine instruction defines a register with the same register class
as what's being replaced. This showed up in the SPEC 403.gcc benchmark, where it
would ICE because a tail call was expecting one register class but was given
another. (The machine instruction verifier catches this situation.)
<rdar://problem/10270968>

llvm-svn: 141830
 2011-10-12 23:03:40 +00:00
Eli Friedman
f6209d7abe Use a utility from MathExtras to clarify a check and avoid undefined behavior. Based on patch by Ahmed Charles. 
llvm-svn: 141829
 2011-10-12 22:46:45 +00:00
Owen Anderson
a3ffb86b9a The VMAs stored in the symbol table of a MachO file are absolute addresses, not offsets from the section. 
llvm-svn: 141828
 2011-10-12 22:37:10 +00:00
Eli Friedman
400fe75ba1 Use unsigned multiply to hash integers, so we don't end up with undefined behavior for large signed integers. Based on patch by Ahmed Charles. 
llvm-svn: 141827
 2011-10-12 22:25:45 +00:00
Lang Hames
069669eb13 Removed colons from some target datalayout strings in test, since they don't match the required format. 
llvm-svn: 141825
 2011-10-12 22:24:17 +00:00
Owen Anderson
6931df0d99 Don't label a STAB debugging symbol as a function symbol. 
llvm-svn: 141824
 2011-10-12 22:23:12 +00:00
Owen Anderson
6e41e4318d sectionContainsSymbol needs to be based on VMA's rather than section indices to properly account for files with segment load commands that contain no sections. 
llvm-svn: 141822
 2011-10-12 22:21:32 +00:00
Eli Friedman
22c39edd2e Fix a couple hash functions so that they do not depend on undefined shifts. Based on patch by Ahmed Charles. 
llvm-svn: 141820
 2011-10-12 22:00:26 +00:00
Jim Grosbach
b9dddb0d13 ARM addrmode5 represents the 'U' bit of the encoding backwards. 
The disassembler needs to use the AM5 factory methods instead of just
building up the immediate directly.

llvm-svn: 141819
 2011-10-12 21:59:02 +00:00
Eli Friedman
d9ebbc6cf5 Fix APFloat::getSmallestNormalized so the shift doesn't depend on undefined behavior. Patch from Ahmed Charles. 
llvm-svn: 141818
 2011-10-12 21:56:19 +00:00
Eli Friedman
cda27f4c18 Fix APFloat::getLargest so that it actually returns the correct value. Found by accident while reviewing a patch to nearby code. 
llvm-svn: 141816
 2011-10-12 21:51:36 +00:00