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Andrea Di Biagio 40f59e4466 [InstCombine] Teach SimplifyDemandedVectorElts how to handle ConstantVector select masks with ConstantExpr elements (PR24922)

If the mask of a select instruction is a ConstantVector, method
SimplifyDemandedVectorElts iterates over the mask elements to identify which
values are selected from the select inputs.

Before this patch, method SimplifyDemandedVectorElts always used method
Constant::isNullValue() to check if a value in the mask was zero. Unfortunately
that method always returns false when called on a ConstantExpr.

This patch fixes the problem in SimplifyDemandedVectorElts by adding an explicit
check for ConstantExpr values. Now, if a value in the mask is a ConstantExpr, we
avoid calling isNullValue() on it.

Fixes PR24922.

Differential Revision: http://reviews.llvm.org/D13219

llvm-svn: 249390

2015-10-06 10:34:53 +00:00

clang

[VFS] Port SimpleFormatContext to InMemoryFileSystem.

2015-10-06 10:23:34 +00:00

clang-tools-extra

Adding a checker (cert-dcl50-cpp) that detects the definition of a C-style variadic function in C++ code. Corresponds to the CERT C++ secure coding rule: https://www.securecoding.cert.org/confluence/display/cplusplus/DCL50-CPP.+Do+not+define+a+C-style+variadic+function

2015-10-05 20:08:59 +00:00

compiler-rt

[builtins] Enable building of the builtins library for MIPS targets.

2015-10-06 09:02:38 +00:00

debuginfo-tests

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