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

llvm-svn: 141844

llvm-svn: 141842

llvm-svn: 141840

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

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

llvm-svn: 141834

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

llvm-svn: 141831

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

Use a utility from MathExtras to clarify a check and avoid undefined behavior.  Based on patch by Ahmed Charles.

llvm-svn: 141829

The VMAs stored in the symbol table of a MachO file are absolute addresses, not offsets from the section.

llvm-svn: 141828

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

Removed colons from some target datalayout strings in test, since they don't match the required format.

llvm-svn: 141825

llvm-svn: 141824

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

Fix a couple hash functions so that they do not depend on undefined shifts.  Based on patch by Ahmed Charles.

llvm-svn: 141820

The disassembler needs to use the AM5 factory methods instead of just
building up the immediate directly.

llvm-svn: 141819

Fix APFloat::getSmallestNormalized so the shift doesn't depend on undefined behavior.  Patch from Ahmed Charles.

llvm-svn: 141818

Fix APFloat::getLargest so that it actually returns the correct value.  Found by accident while reviewing a patch to nearby code.

llvm-svn: 141816

llvm-svn: 141815

for cpp pre-processed assembly we give correct filename and line numbers when
reporting errors in assembly files when using clang and -integrated-as on .s
files. rdar://8998895

llvm-svn: 141814

Disable machine LICM speculation check (for profitability) until I have time to investigate the regressions.

llvm-svn: 141813

rather than the previous index. If a block has a single instruction, the
previous index may be in a different basic block.

I have no clue how this used to work on all of test-suite, because now this
failure is seen quite often when trying to compile code with -strong-phi-elim.
This fixes PR10252.

llvm-svn: 141812

llvm-svn: 141811

llvm-svn: 141807

llvm-svn: 141794

llvm-svn: 141787

llvm-svn: 141786

llvm-svn: 141781

llvm-svn: 141780

intended, but only by accident.

llvm-svn: 141779

lib/Object/ELFObjectFile.cpp: Fix undefined behavior for MC/ELF/many-section.s not to fail (on msvc).

DenseMap::lookup(k) would return "default constructor value" when k was not met. It would be useless when value type were POD.

llvm-svn: 141774

containing loop's header to see if that's a landing pad. If it is, then we don't
want to hoist instructions out of the loop and above the header.

llvm-svn: 141767

llvm-svn: 141763

llvm-svn: 141761

Remove unused classes.

llvm-svn: 141757

llvm-svn: 141752

llvm-svn: 141750

llvm-svn: 141749