Even if I just issue one file with /Yc and none with /Yu, it still fails. Looks like it possibly generates two processes, one to generate the pch and the other to compile and link. A temp file is generated but no final pch; an error is emitted "Unable to read pch file foo.pch".
On Sun, 7 Apr 2019, 14:19 Alexandre Ganea via Phabricator, < revi...@reviews.llvm.org> wrote: > aganea added a comment. > > That is strange. As you can’t mix /Yc and /Yu on the command line, MSBuild > should issue two different calls to clang-cl, one with /Yc and one /Yu /MP. > Can you check with ProcMon that commands are issued in the right order? > > > Repository: > rC Clang > > CHANGES SINCE LAST ACTION > https://reviews.llvm.org/D52193/new/ > > https://reviews.llvm.org/D52193 > > > >
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