Matthias Braun abb6eea19c CC1: Add -save-stats option
This option behaves in a similar spirit as -save-temps and writes
internal llvm statistics in json format to a file.

Differential Revision: https://reviews.llvm.org/D24820

llvm-svn: 282426
2016-09-26 18:53:34 +00:00

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// RUN: %clang_cc1 -emit-llvm -o /dev/null -stats-file=%t %s
// RUN: FileCheck -input-file=%t %s
// CHECK: {
// ... here come some json values ...
// CHECK: }
// RUN: %clang_cc1 -emit-llvm -o %t -stats-file=%S/doesnotexist/bla %s 2>&1 | FileCheck -check-prefix=OUTPUTFAIL %s
// OUTPUTFAIL: warning: unable to open statistics output file '{{.*}}doesnotexist{{.}}bla': '{{[Nn]}}o such file or directory'