say why things are unsupported on MSVC

Author: barcharcraz

compiler-rt/test/asan/TestCases/Windows/dll_stack_use_after_return.cpp

@@ -3,6 +3,7 @@
 // RUN: %env_asan_opts=detect_stack_use_after_return=1 not %run %t %t.dll 2>&1 | FileCheck %s
 // RUN: %clang_cl_asan %LD %Od %s %Fe%t.dll -fsanitize-address-use-after-return=always
 // RUN: not %run %t %t.dll 2>&1 | FileCheck %s
+
 // UNSUPPORTED: msvc
 
 #include <malloc.h>

compiler-rt/test/asan/TestCases/alloca_instruments_all_paddings.cpp

@@ -2,8 +2,10 @@
 // RUN: %clangxx_asan -O3 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: %run %t 2>&1
 //
+// MSVC does not support asan-instrament-dynamic-allocas yet
 // UNSUPPORTED: msvc
 
+
 #include "sanitizer/asan_interface.h"
 #include <assert.h>
 #include <stdint.h>

compiler-rt/test/asan/TestCases/alloca_loop_unpoisoning.cpp

@@ -4,6 +4,8 @@
 // REQUIRES: stable-runtime
 
 // This testcase checks that allocas and VLAs inside loop are correctly unpoisoned.
+
+// MSVC doesn't support VLAs in the first place.
 // UNSUPPORTED: msvc
 
 #include "defines.h"

compiler-rt/test/asan/TestCases/alloca_overflow_partial.cpp

@@ -1,6 +1,7 @@
 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include <assert.h>

compiler-rt/test/asan/TestCases/alloca_overflow_right.cpp

@@ -1,6 +1,7 @@
 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include <assert.h>

compiler-rt/test/asan/TestCases/alloca_safe_access.cpp

@@ -1,6 +1,7 @@
 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: %run %t 2>&1
 //
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include <assert.h>

compiler-rt/test/asan/TestCases/alloca_underflow_left.cpp

@@ -1,6 +1,7 @@
 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include <assert.h>

compiler-rt/test/asan/TestCases/alloca_vla_interact.cpp

@@ -7,6 +7,8 @@
 // XFAIL: target=sparc{{.*}}
 
 // This testcase checks correct interaction between VLAs and allocas.
+
+// MSVC doesn't support VLA's
 // UNSUPPORTED: msvc
 
 #include <assert.h>

compiler-rt/test/asan/TestCases/speculative_load.cpp

@@ -3,6 +3,8 @@
 // RUN: %clangxx_asan -O1 %s -o %t && %run %t 2>&1
 // RUN: %clangxx_asan -O2 %s -o %t && %run %t 2>&1
 // RUN: %clangxx_asan -O3 %s -o %t && %run %t 2>&1
+
+// MSVC doesn't support GCC style inline assembly
 // UNSUPPORTED: msvc
 
 #include <sanitizer/asan_interface.h>

compiler-rt/test/asan/TestCases/stack-oob-frames.cpp

@@ -3,6 +3,8 @@
 // RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK1
 // RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK2
 // RUN: not %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK3
+
+// MSVC doesn't support GCC style inline ASM
 // UNSUPPORTED: msvc
 
 #define NOINLINE __attribute__((noinline))

compiler-rt/test/asan/TestCases/throw_call_test.cpp

@@ -1,6 +1,8 @@
 // RUN: %clangxx_asan %s -o %t && %run %t
 // http://code.google.com/p/address-sanitizer/issues/detail?id=147 (not fixed).
 // BROKEN: %clangxx_asan %s -o %t -static-libstdc++ && %run %t
+
+// MSVC doesn't support GCC style inline ASM
 // UNSUPPORTED: msvc
 
 #include "defines.h"

compiler-rt/test/asan/TestCases/vla_chrome_testcase.cpp

@@ -1,6 +1,7 @@
 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 // This is reduced testcase based on Chromium code.

compiler-rt/test/asan/TestCases/vla_condition_overflow.cpp

@@ -2,6 +2,7 @@
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
 // REQUIRES: stable-runtime
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include "defines.h"

compiler-rt/test/asan/TestCases/vla_loop_overfow.cpp

@@ -2,6 +2,8 @@
 // RUN: not %run %t 2>&1 | FileCheck %s
 //
 // REQUIRES: stable-runtime
+
+// MSVC doesn't support VLAs
 // UNSUPPORTED: msvc
 
 #include <assert.h>