I rewrote the algorithm a while back so it doesn't require map lookup,
but neglected to change the data structure. This was caught by
llvm-gcc self host, not because there's anything special about
llvm-gcc, but because it is the only test for nondeterminism we
currently have. Unit tests don't work well for everything; we should
always try to have a nondeterminism stress test running.
Fixes PR11133: llvm-gcc self host .o mismatch after enable-iv-rewrite=false
llvm-svn: 142036
Also note that it is actually doing much more than it should. This paves
the way for building a more generic 'Emit' routine that is the real
entry point here.
llvm-svn: 142035
This also adds a -Wc++98-compat-pedantic for warning on constructs which would
be diagnosed by -std=c++98 -pedantic (that is, it warns even on C++11 features
which we enable by default, with no warning, in C++98 mode).
llvm-svn: 142034
This isn't put into the 'clear()' method because the information needs to stick
around (at least for a little bit) after the selection DAG is built.
llvm-svn: 142032
It really doesn't, but when r141929 removed the hasSideEffects flag from
this instruction, it caused miscompilations. I am guessing that it got
moved across a stack pointer update.
Also clear isRematerializable after checking that this instruction is
in fact never rematerialized in the nightly test suite.
llvm-svn: 142030
rdar://10288916 is tracking this fix.
In the past, instcombine and other passes were promoting alloca alignment past
the natural alignment, resulting in dynamic stack realignment. Lang's work now
prevents this from happening (LLVM commit r141599). Now that this really
shouldn't happen report a fatal error rather than silently generate bad code.
llvm-svn: 142028
avoids loading data from an external source, since those lookups were
causing some "interesting" recursion in LLDB.
This code is not efficient. I plan to remedy this inefficiency in a
follow-up commit.
llvm-svn: 142023
The callee-saved registers cannot be live across an invoke call because the
control flow may continue along the exceptional edge. When this happens, all of
the callee-saved registers are no longer valid.
llvm-svn: 142018
out the latest LLDB, LLVM and Clang and makes sure
they work okay together. The buildbot is currently
Mac OS X only because it uses xcodebuild.
Right now, the portion that runs the LLDB test
suite is commented out because of code-signing
problems (specifically, on Mac OS 10.7 a UI dialog
appears asking for the user's permission to attach
to the inferior process).
You can use the buildbot like this:
./scripts/buildbot.py -b /tmp/lldb-build -l /tmp/lldb.log
/tmp/lldb-build and /tmp/lldb.log should not exist
when the script is run.
/tmp/lldb-build is a temporary directory and is
removed at the end of a normal execution.
/tmp/lldb.log is a log file that sticks around.
The buildbot does not require built versions of anything;
it will do the building itself.
llvm-svn: 142006
OCaml's int is limited to 31 bits on 32-bit architectures, so use Int32
explicitly.
Also add an unpack_attr, and {function,param,instr}_attr functions to read
the attributes.
llvm-svn: 141996
Bill Wendling