[clang] Get rid of "%T" expansions
The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t.
This patch removes %T in clang.
Differential Revision: https://reviews.llvm.org/D36437
llvm-svn: 310950
diff --git a/clang/test/PCH/case-insensitive-include.c b/clang/test/PCH/case-insensitive-include.c
index 1dcda273..c721225 100644
--- a/clang/test/PCH/case-insensitive-include.c
+++ b/clang/test/PCH/case-insensitive-include.c
@@ -1,18 +1,19 @@
// REQUIRES: case-insensitive-filesystem
// Test this without pch.
-// RUN: cp %S/Inputs/case-insensitive-include.h %T
-// RUN: %clang_cc1 -Wno-nonportable-include-path -fsyntax-only %s -include %s -I %T -verify
+// RUN: mkdir -p %t-dir
+// RUN: cp %S/Inputs/case-insensitive-include.h %t-dir
+// RUN: %clang_cc1 -Wno-nonportable-include-path -fsyntax-only %s -include %s -I %t-dir -verify
// Test with pch.
-// RUN: %clang_cc1 -emit-pch -o %t.pch %s -I %T
+// RUN: %clang_cc1 -emit-pch -o %t.pch %s -I %t-dir
// Modify inode of the header.
-// RUN: cp %T/case-insensitive-include.h %t.copy
-// RUN: touch -r %T/case-insensitive-include.h %t.copy
-// RUN: mv %t.copy %T/case-insensitive-include.h
+// RUN: cp %t-dir/case-insensitive-include.h %t.copy
+// RUN: touch -r %t-dir/case-insensitive-include.h %t.copy
+// RUN: mv %t.copy %t-dir/case-insensitive-include.h
-// RUN: %clang_cc1 -fsyntax-only %s -include-pch %t.pch -I %T -verify
+// RUN: %clang_cc1 -fsyntax-only %s -include-pch %t.pch -I %t-dir -verify
// expected-no-diagnostics