[test][asan] Remove -fsanitize-address-use-after-scope

It's enabled by default in D31479.

compiler-rt/test/asan/TestCases/use-after-scope-capture.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 #include <functional>
 

compiler-rt/test/asan/TestCases/use-after-scope-conversion.cpp

@@ -1,4 +1,4 @@
-// RUN: %clangxx_asan -O0 -fsanitize-address-use-after-scope %s -o %t
+// RUN: %clangxx_asan -O0 %s -o %t
 
 // RUN: not %run %t 'A' 2>&1 | FileCheck %s
 // RUN: not %run %t 'B' 2>&1 | FileCheck %s

compiler-rt/test/asan/TestCases/use-after-scope-dtor-order.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 #include <stdio.h>
 

compiler-rt/test/asan/TestCases/use-after-scope-goto.cpp

@@ -1,4 +1,4 @@
-// RUN: %clangxx_asan -O0 -fsanitize-address-use-after-scope %s -o %t && %run %t
+// RUN: %clangxx_asan -O0 %s -o %t && %run %t
 
 // Function jumps over variable initialization making lifetime analysis
 // ambiguous. Asan should ignore such variable and program must not fail.

compiler-rt/test/asan/TestCases/use-after-scope-if.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 int *p;
 bool b = true;

compiler-rt/test/asan/TestCases/use-after-scope-inlined.cpp

@@ -2,8 +2,7 @@
 // happens. "always_inline" is not enough, as Clang doesn't emit
 // llvm.lifetime intrinsics at -O0.
 //
-// RUN: %clangxx_asan -O2 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 int *arr;
 

compiler-rt/test/asan/TestCases/use-after-scope-loop-bug.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 volatile int *p;
 

compiler-rt/test/asan/TestCases/use-after-scope-loop-removed.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 #include <stdlib.h>
 

compiler-rt/test/asan/TestCases/use-after-scope-loop.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 int *p[3];
 

compiler-rt/test/asan/TestCases/use-after-scope-nobug.cpp

@@ -1,4 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && %run %t
+// RUN: %clangxx_asan -O1 %s -o %t && %run %t
 
 #include <stdio.h>
 #include <stdlib.h>

compiler-rt/test/asan/TestCases/use-after-scope-temp.cpp

@@ -1,4 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 struct IntHolder {
   int val;

compiler-rt/test/asan/TestCases/use-after-scope-temp2.cpp

@@ -1,5 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 struct IntHolder {
   __attribute__((noinline)) const IntHolder &Self() const {

compiler-rt/test/asan/TestCases/use-after-scope-types.cpp

@@ -1,4 +1,4 @@
-// RUN: %clangxx_asan -O0 -fsanitize-address-use-after-scope %s -o %t
+// RUN: %clangxx_asan -O0 %s -o %t
 // RUN: not %run %t 0 2>&1 | FileCheck %s
 // RUN: not %run %t 1 2>&1 | FileCheck %s
 // RUN: not %run %t 2 2>&1 | FileCheck %s

compiler-rt/test/asan/TestCases/use-after-scope.cpp

@@ -1,9 +1,4 @@
-// RUN: %clangxx_asan -O1 -fsanitize-address-use-after-scope %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
-
-// -fsanitize-address-use-after-scope is now on by default:
-// RUN: %clangxx_asan -O1 %s -o %t && \
-// RUN:     not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 volatile int *p = 0;
 

llvm/cmake/modules/HandleLLVMOptions.cmake

@@ -913,10 +913,6 @@ if(LLVM_USE_SANITIZER)
   else()
     message(FATAL_ERROR "LLVM_USE_SANITIZER is not supported on this platform.")
   endif()
-  if (LLVM_USE_SANITIZER MATCHES "(Undefined;)?Address(;Undefined)?")
-    add_flag_if_supported("-fsanitize-address-use-after-scope"
-                          FSANITIZE_USE_AFTER_SCOPE_FLAG)
-  endif()
   if (LLVM_USE_SANITIZE_COVERAGE)
     append("-fsanitize=fuzzer-no-link" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
   endif()