"global-init", "global-init-src" and "global-init-type" were originally
used to blacklist entities in ASan init-order checker. However, they
were never documented, and later were replaced by "=init" category.
Old blacklist entries should be converted as follows:
* global-init:foo -> global:foo=init
* global-init-src:bar -> src:bar=init
* global-init-type:baz -> type:baz=init
llvm-svn: 222401
This reverts commit r222142. This is causing/exposing an execution-time regression
in spec2006/gcc and coremark on AArch64/A57/Ofast.
Conflicts:
test/Transforms/Reassociate/optional-flags.ll
llvm-svn: 222398
This reverts commit r222144. Commit r222142 is being reverted due to
a spec2006/gcc execution-time regression.
Update mips-varargs test as well.
llvm-svn: 222397
Now that LLVM's helper script GetSVN.cmake actually works consistently,
there's no reason not to use it. We avoid having to regenerate SVNVersion.inc
every time by marking it as dependent on Git's reflog or SVN's entries file.
This should end most of the issues of the AST format changing and breaking
old module files: CMake-Clang should now detect that the version changed just
like Autoconf-Clang has.
Based on r190557. Depends on LLVM r222391.
llvm-svn: 222393
This allows the logic to work with Git, and also uses the variable names
to match what Clang is actually looking for.
This is a re-application of r190556 and r190808. This changes the interface
of GetSVN.cmake. Clang change to follow.
llvm-svn: 222391
- Show "Considering..." message after flipping so you actually see the final
destination vreg as destination.
- Add a message on final join, so you can grep for "Success" messages to obtain
a list of which register got merged with which.
llvm-svn: 222382
This patch improves the lowering of v4f32 and v4i32 build_vector dag nodes
that are known to have at least two non-zero elements.
With this patch, a build_vector that performs a blend with zero is
converted into a shuffle. This is done to let the shuffle legalizer expand
the dag node in a optimal way. For example, if we know that a build_vector
performs a blend with zero, we can try to lower it as a movq/blend instead of
always selecting an insertps.
This patch also improves the logic that lowers a build_vector into a insertps
with zero masking. See for example the extra test cases added to test sse41.ll.
Differential Revision: http://reviews.llvm.org/D6311
llvm-svn: 222375
As detailed at http://llvm.org/PR20728, due to an internal overflow in
APFloat::multiplySignificand the APFloat::fusedMultiplyAdd method can return
incorrect results for x87DoubleExtended (x86_fp80) values. This commonly
manifests as incorrect constant folding of libm fmal calls on x86. E.g.
fmal(1.0L, 1.0L, 3.0L) == 0.0L (should be 4.0L)
This patch fixes PR20728 by adding an extra bit to the significand for
intermediate results of APFloat::multiplySignificand, avoiding the overflow.
llvm-svn: 222374
While emitting debug information for function forward decalrations, we
create DISubprogram objects that aran't stored in the AllSubprograms
list, and thus won't get finalized by the DIBuilder. During the DIBuilder
finalize(), the temporary MDNode allocated for the DISubprogram
Variables field gets RAUWd with a non temporary DIArray. For the forward
declarations, simply delete that temporary node before we delete the
parent node, so that it doesn't leak.
llvm-svn: 222373
A register operand that has a common sub-class with its instruction's
defined register class is not always legal. For example,
SReg_32 and M0Reg both have a common sub-class, but we can't
use an SReg_32 in instructions that expect a M0Reg.
This prevents the llvm.SI.sendmsg.ll test from failing when the fold
operand pass is added.
llvm-svn: 222368
Before:
public void union
(Object o);
public void struct
(Object o);
public void delete (Object o);
After:
public void union(Object o);
public void struct(Object o);
public void delete(Object o);
Patch by Harry Terkelsen, thank you!
llvm-svn: 222357
When the BasicBlock containing the return instrution has a PHI with 2
incoming values, FoldReturnIntoUncondBranch will remove the no longer
used incoming value and remove the no longer needed phi as well. This
leaves us with a BB that no longer has a PHI, but the subsequent call
to FoldReturnIntoUncondBranch from FoldReturnAndProcessPred will not
remove the return instruction (which still uses the result of the call
instruction). This prevents EliminateRecursiveTailCall to remove
the value, as it is still being used in a basicblock which has no
predecessors.
The basicblock can not be erased on the spot, because its iterator is
still being used in runTRE.
This issue was exposed when removing the threshold on size for lifetime
marker insertion for named temporaries in clang. The testcase is a much
reduced version of peelOffOuterExpr(const Expr*, const ExplodedNode *)
from clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp.
llvm-svn: 222354
Eric Fiselier