Some code want to check that *any* call within a function has the 'returns
twice' attribute, not just that the current function has one.
llvm-svn: 142221
In machine code, you can't just replaceRegWith() the same way you can
replaceAllUsesWith() in IR. Virtual registers may have different
register classes that need to be merged first.
llvm-svn: 142201
profile metadata at the same time. Use it to preserve metadata attached
to a branch when re-writing it in InstCombine.
Add metadata to the canonicalize_branch InstCombine test, and check that
it is tranformed correctly.
Reviewed by Nick Lewycky!
llvm-svn: 142168
the X86 asmparser to produce ranges in the one case that was annoying me, for example:
test.s:10:15: error: invalid operand for instruction
movl 0(%rax), 0(%edx)
^~~~~~~
It should be straight-forward to enhance filecheck, tblgen, and/or the .ll parser to use
ranges where appropriate if someone is interested.
llvm-svn: 142106
Just because we're dealing with a GEP doesn't mean we can assert the
SCEV has a pointer type. The fix is simply to ignore the SCEV pointer
type, which we really didn't need.
Fixes PR11138 webkit crash.
llvm-svn: 142058
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
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
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
file. Since it should only be used when necessary propagate it through
the backend code generation and tweak testcases accordingly.
This helps with code like in clang's test/CodeGen/debug-info-line.c where
we have multiple #line directives within a single lexical block and want
to generate only a single block that contains each file change.
Part of rdar://10246360
llvm-svn: 141729
unused) code from .cmake to DataTypes.h.in so that the files are essentially in
sync module differences in autoconf/cmake replacement syntax.
llvm-svn: 141702
IVs.
Indvars previously chose randomly between congruent IVs. Now it will
bias the decision toward IVs that SCEVExpander likes to create. This
was not done to fix any problem, it's just a welcome side effect of
factoring code.
llvm-svn: 141633
This line, and those below, will be ignored--
M include/llvm/Linker.h
M tools/bugpoint/Miscompilation.cpp
M tools/bugpoint/BugDriver.cpp
M tools/llvm-link/llvm-link.cpp
M lib/Linker/LinkModules.cpp
llvm-svn: 141606
promoting allocas to preferred alignments that exceed the natural
alignment. This avoids some potentially expensive dynamic stack realignments.
The natural stack alignment is set in target data strings via the "S<size>"
option. Size is in bits and must be a multiple of 8. The natural stack alignment
defaults to "unspecified" (represented by a zero value), and the "unspecified"
value does not prevent any alignment promotions. Target maintainers that care
about avoiding promotions should explicitly add the "S<size>" option to their
target data strings.
llvm-svn: 141599
flags as binutils objdump but the output is different, not just in format but
also showing different sections. Compare its results against readelf, not
objdump.
llvm-svn: 141579
The difference between isPseudo and isCodeGenOnly is a bit murky, but
isCodeGenOnly should eventually go away. It is used for instructions
that are clones of real instructions with slightly different properties.
The standard pseudo-instructions never mirror real instructions, so they
are definitely in the isPseudo category.
llvm-svn: 141567
