Auto merge of #52724 - alexcrichton:update-compiler-builtins, r=alexcrichton

Update the compiler-builtins submodule

Pull in a fix for japaric/libm#129
This commit is contained in:
bors 2018-07-27 03:24:16 +00:00
commit 3d0e93309d

@ -1 +1 @@
Subproject commit b4a3645cfe102a100b6ebecbe76df37bc957eda8
Subproject commit 52a6a4d7087d14a35d44a11c39c77fa79d71378d