[sancov] Don't instrument MSVC CRT stdio config helpers
authorReid Kleckner <rnk@google.com>
Fri, 11 Nov 2016 19:18:45 +0000 (19:18 +0000)
committerReid Kleckner <rnk@google.com>
Fri, 11 Nov 2016 19:18:45 +0000 (19:18 +0000)
commitec80354873dab4a4b0263724f357b022bc19880a
treed7b7450fdb18f9f763555947e845934ee084f155
parentbfb371a083577b5d37e1d2918e80cae06831a634
[sancov] Don't instrument MSVC CRT stdio config helpers

They get called before initialization, which is a problem for winasan.

Test coming in compiler-rt.

llvm-svn: 286615
llvm/lib/Transforms/Instrumentation/SanitizerCoverage.cpp