Roll Clang 223108:228742

tools/clang/scripts/update.sh

Index: tools/clang/scripts/update.sh
diff --git a/tools/clang/scripts/update.sh b/tools/clang/scripts/update.sh
index 7b964cc17e4d7500393bfc9d5cd66d489a41a52c..faafa7b8e1f27a41f0014b3daa49b1634f50b715 100755
--- a/tools/clang/scripts/update.sh
+++ b/tools/clang/scripts/update.sh
@@ -8,7 +8,12 @@
 # Do NOT CHANGE this if you don't know what you're doing -- see
 # https://code.google.com/p/chromium/wiki/UpdatingClang
 # Reverting problematic clang rolls is safe, though.
-CLANG_REVISION=223108
+CLANG_REVISION=228742
+
+# This is incremented when pushing a new build of Clang at the same revision.
+CLANG_SUB_REVISION=1
+
+PACKAGE_VERSION="${CLANG_REVISION}-${CLANG_SUB_REVISION}"
 
 THIS_DIR="$(dirname "${0}")"
 LLVM_DIR="${THIS_DIR}/../../../third_party/llvm"
@@ -32,12 +37,6 @@ ABS_LLVM_BUILD_DIR="${PWD}/${LLVM_BUILD_DIR}"
 ABS_COMPILER_RT_DIR="${PWD}/${COMPILER_RT_DIR}"
 
 
-# Use both the clang revision and the plugin revisions to test for updates.
-BLINKGCPLUGIN_REVISION=\
-$(grep 'set(LIBRARYNAME' "$THIS_DIR"/../blink_gc_plugin/CMakeLists.txt \
-    | cut -d ' ' -f 2 | tr -cd '[0-9]')
-CLANG_AND_PLUGINS_REVISION="${CLANG_REVISION}-${BLINKGCPLUGIN_REVISION}"
-
 # ${A:-a} returns $A if it's set, a else.
 LLVM_REPO_URL=${LLVM_URL:-https://llvm.org/svn/llvm-project}
 
@@ -166,8 +165,8 @@ if [[ -f "${STAMP_FILE}" ]]; then
   PREVIOUSLY_BUILT_REVISON=$(cat "${STAMP_FILE}")
   if [[ -z "$force_local_build" ]] && \
        [[ "${PREVIOUSLY_BUILT_REVISON}" = \
-          "${CLANG_AND_PLUGINS_REVISION}" ]]; then
-    echo "Clang already at ${CLANG_AND_PLUGINS_REVISION}"
+          "${PACKAGE_VERSION}" ]]; then
+    echo "Clang already at ${PACKAGE_VERSION}"
     exit 0
   fi
 fi
@@ -179,7 +178,7 @@ if [[ -z "$force_local_build" ]]; then
   # Check if there's a prebuilt binary and if so just fetch that. That's faster,
   # and goma relies on having matching binary hashes on client and server too.
   CDS_URL=https://commondatastorage.googleapis.com/chromium-browser-clang
-  CDS_FILE="clang-${CLANG_REVISION}.tgz"
+  CDS_FILE="clang-${PACKAGE_VERSION}.tgz"
   CDS_OUT_DIR=$(mktemp -d -t clang_download.XXXXXX)
   CDS_OUTPUT="${CDS_OUT_DIR}/${CDS_FILE}"
   if [ "${OS}" = "Linux" ]; then
@@ -201,12 +200,12 @@ if [[ -z "$force_local_build" ]]; then
     rm -rf "${LLVM_BUILD_DIR}"
     mkdir -p "${LLVM_BUILD_DIR}"
     tar -xzf "${CDS_OUTPUT}" -C "${LLVM_BUILD_DIR}"
-    echo clang "${CLANG_REVISION}" unpacked
-    echo "${CLANG_AND_PLUGINS_REVISION}" > "${STAMP_FILE}"
+    echo clang "${PACKAGE_VERSION}" unpacked
+    echo "${PACKAGE_VERSION}" > "${STAMP_FILE}"
     rm -rf "${CDS_OUT_DIR}"
     exit 0
   else
-    echo Did not find prebuilt clang at r"${CLANG_REVISION}", building
+    echo Did not find prebuilt clang "${PACKAGE_VERSION}", building
   fi
 fi
 
@@ -330,349 +329,6 @@ EOF
 patch -p0
 popd
 
-# Apply r223211: "Revert r222997."
-pushd "${LLVM_DIR}"
-cat << 'EOF' |
---- a/lib/Transforms/Instrumentation/MemorySanitizer.cpp
-+++ b/lib/Transforms/Instrumentation/MemorySanitizer.cpp
-@@ -921,8 +921,6 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
-             Value *OriginPtr =
-                 getOriginPtrForArgument(&FArg, EntryIRB, ArgOffset);
-             setOrigin(A, EntryIRB.CreateLoad(OriginPtr));
--          } else {
--            setOrigin(A, getCleanOrigin());
-           }
-         }
-         ArgOffset += RoundUpToAlignment(Size, kShadowTLSAlignment);
-@@ -942,13 +940,15 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
-   /// \brief Get the origin for a value.
-   Value *getOrigin(Value *V) {
-     if (!MS.TrackOrigins) return nullptr;
--    if (!PropagateShadow) return getCleanOrigin();
--    if (isa<Constant>(V)) return getCleanOrigin();
--    assert((isa<Instruction>(V) || isa<Argument>(V)) &&
--           "Unexpected value type in getOrigin()");
--    Value *Origin = OriginMap[V];
--    assert(Origin && "Missing origin");
--    return Origin;
-+    if (isa<Instruction>(V) || isa<Argument>(V)) {
-+      Value *Origin = OriginMap[V];
-+      if (!Origin) {
-+        DEBUG(dbgs() << "NO ORIGIN: " << *V << "\n");
-+        Origin = getCleanOrigin();
-+      }
-+      return Origin;
-+    }
-+    return getCleanOrigin();
-   }
- 
-   /// \brief Get the origin for i-th argument of the instruction I.
-@@ -1088,7 +1088,6 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
-     IRB.CreateStore(getCleanShadow(&I), ShadowPtr);
- 
-     setShadow(&I, getCleanShadow(&I));
--    setOrigin(&I, getCleanOrigin());
-   }
- 
-   void visitAtomicRMWInst(AtomicRMWInst &I) {
-EOF
-patch -p1
-popd
-
-# Apply r223219: "Preserve LD_LIBRARY_PATH when using the 'env' command"
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/test/Driver/env.c
-+++ b/test/Driver/env.c
-@@ -5,12 +5,14 @@
- // REQUIRES: shell
- //
- // The PATH variable is heavily used when trying to find a linker.
--// RUN: env -i LC_ALL=C %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-+// RUN: env -i LC_ALL=C LD_LIBRARY_PATH="$LD_LIBRARY_PATH" \
-+// RUN:   %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
- // RUN:     --target=i386-unknown-linux \
- // RUN:     --sysroot=%S/Inputs/basic_linux_tree \
- // RUN:   | FileCheck --check-prefix=CHECK-LD-32 %s
- //
--// RUN: env -i LC_ALL=C PATH="" %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-+// RUN: env -i LC_ALL=C PATH="" LD_LIBRARY_PATH="$LD_LIBRARY_PATH" \
-+// RUN:   %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
- // RUN:     --target=i386-unknown-linux \
- // RUN:     --sysroot=%S/Inputs/basic_linux_tree \
- // RUN:   | FileCheck --check-prefix=CHECK-LD-32 %s
-EOF
-patch -p1
-popd
-
-# Revert r220714: "Frontend: Define __EXCEPTIONS if -fexceptions is passed"
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Frontend/InitPreprocessor.cpp
-+++ b/lib/Frontend/InitPreprocessor.cpp
-@@ -566,7 +566,7 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
-     Builder.defineMacro("__BLOCKS__");
-   }
- 
--  if (!LangOpts.MSVCCompat && LangOpts.Exceptions)
-+  if (!LangOpts.MSVCCompat && LangOpts.CXXExceptions)
-     Builder.defineMacro("__EXCEPTIONS");
-   if (!LangOpts.MSVCCompat && LangOpts.RTTI)
-     Builder.defineMacro("__GXX_RTTI");
-diff --git a/test/Frontend/exceptions.c b/test/Frontend/exceptions.c
-index 981b5b9..4bbaaa3 100644
---- a/test/Frontend/exceptions.c
-+++ b/test/Frontend/exceptions.c
-@@ -1,9 +1,6 @@
--// RUN: %clang_cc1 -fms-compatibility -fexceptions -fcxx-exceptions -DMS_MODE -verify %s
-+// RUN: %clang_cc1 -fms-compatibility -fexceptions -fcxx-exceptions -verify %s
- // expected-no-diagnostics
- 
--// RUN: %clang_cc1 -fms-compatibility -fexceptions -verify %s
--// expected-no-diagnostics
--
--#if defined(MS_MODE) && defined(__EXCEPTIONS)
-+#if defined(__EXCEPTIONS)
- #error __EXCEPTIONS should not be defined.
- #endif
-diff --git a/test/Preprocessor/predefined-exceptions.m b/test/Preprocessor/predefined-exceptions.m
-index 0791075..c13f429 100644
---- a/test/Preprocessor/predefined-exceptions.m
-+++ b/test/Preprocessor/predefined-exceptions.m
-@@ -1,6 +1,6 @@
- // RUN: %clang_cc1 -x objective-c -fobjc-exceptions -fexceptions -E -dM %s | FileCheck -check-prefix=CHECK-OBJC-NOCXX %s 
- // CHECK-OBJC-NOCXX: #define OBJC_ZEROCOST_EXCEPTIONS 1
--// CHECK-OBJC-NOCXX: #define __EXCEPTIONS 1
-+// CHECK-OBJC-NOCXX-NOT: #define __EXCEPTIONS 1
- 
- // RUN: %clang_cc1 -x objective-c++ -fobjc-exceptions -fexceptions -fcxx-exceptions -E -dM %s | FileCheck -check-prefix=CHECK-OBJC-CXX %s 
- // CHECK-OBJC-CXX: #define OBJC_ZEROCOST_EXCEPTIONS 1
-EOF
-patch -p1
-popd
-
-# Apply r223177: "Ensure typos in the default values of template parameters get diagnosed."
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Parse/ParseTemplate.cpp
-+++ b/lib/Parse/ParseTemplate.cpp
-@@ -676,7 +676,7 @@ Parser::ParseNonTypeTemplateParameter(unsigned Depth, unsigned Position) {
-     GreaterThanIsOperatorScope G(GreaterThanIsOperator, false);
-     EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated);
- 
--    DefaultArg = ParseAssignmentExpression();
-+    DefaultArg = Actions.CorrectDelayedTyposInExpr(ParseAssignmentExpression());
-     if (DefaultArg.isInvalid())
-       SkipUntil(tok::comma, tok::greater, StopAtSemi | StopBeforeMatch);
-   }
-diff --git a/test/SemaCXX/default2.cpp b/test/SemaCXX/default2.cpp
-index 1626044..c4d40b4 100644
---- a/test/SemaCXX/default2.cpp
-+++ b/test/SemaCXX/default2.cpp
-@@ -122,3 +122,9 @@ class XX {
-   void A(int length = -1 ) {  } 
-   void B() { A(); }
- };
-+
-+template <int I = (1 * I)> struct S {};  // expected-error-re {{use of undeclared identifier 'I'{{$}}}}
-+S<1> s;
-+
-+template <int I1 = I2, int I2 = 1> struct T {};  // expected-error-re {{use of undeclared identifier 'I2'{{$}}}}
-+T<0, 1> t;
-diff --git a/test/SemaCXX/typo-correction-delayed.cpp b/test/SemaCXX/typo-correction-delayed.cpp
-index bff1d76..7bf9258 100644
---- a/test/SemaCXX/typo-correction-delayed.cpp
-+++ b/test/SemaCXX/typo-correction-delayed.cpp
-@@ -102,3 +102,7 @@ void f(int *i) {
-   __atomic_load(i, i, something_something);  // expected-error-re {{use of undeclared identifier 'something_something'{{$}}}}
- }
- }
-+
-+const int DefaultArg = 9;  // expected-note {{'DefaultArg' declared here}}
-+template <int I = defaultArg> struct S {};  // expected-error {{use of undeclared identifier 'defaultArg'; did you mean 'DefaultArg'?}}
-+S<1> s;
-EOF
-patch -p1
-popd
-
-# Apply r223209: "Handle delayed corrections in a couple more error paths in ParsePostfixExpressionSuffix."
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Parse/ParseExpr.cpp
-+++ b/lib/Parse/ParseExpr.cpp
-@@ -1390,6 +1390,7 @@ Parser::ParsePostfixExpressionSuffix(ExprResult LHS) {
-         SourceLocation OpenLoc = ConsumeToken();
- 
-         if (ParseSimpleExpressionList(ExecConfigExprs, ExecConfigCommaLocs)) {
-+          (void)Actions.CorrectDelayedTyposInExpr(LHS);
-           LHS = ExprError();
-         }
- 
-@@ -1440,6 +1441,7 @@ Parser::ParsePostfixExpressionSuffix(ExprResult LHS) {
-         if (Tok.isNot(tok::r_paren)) {
-           if (ParseExpressionList(ArgExprs, CommaLocs, &Sema::CodeCompleteCall,
-                                   LHS.get())) {
-+            (void)Actions.CorrectDelayedTyposInExpr(LHS);
-             LHS = ExprError();
-           }
-         }
-diff --git a/test/SemaCXX/typo-correction-delayed.cpp b/test/SemaCXX/typo-correction-delayed.cpp
-index 7bf9258..f7ef015 100644
---- a/test/SemaCXX/typo-correction-delayed.cpp
-+++ b/test/SemaCXX/typo-correction-delayed.cpp
-@@ -106,3 +106,9 @@ void f(int *i) {
- const int DefaultArg = 9;  // expected-note {{'DefaultArg' declared here}}
- template <int I = defaultArg> struct S {};  // expected-error {{use of undeclared identifier 'defaultArg'; did you mean 'DefaultArg'?}}
- S<1> s;
-+
-+namespace foo {}
-+void test_paren_suffix() {
-+  foo::bar({5, 6});  // expected-error-re {{no member named 'bar' in namespace 'foo'{{$}}}} \
-+                     // expected-error {{expected expression}}
-+}
-EOF
-patch -p1
-popd
-
-# Apply r223705: "Handle possible TypoExprs in member initializers."
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Sema/SemaDeclCXX.cpp
-+++ b/lib/Sema/SemaDeclCXX.cpp
-@@ -2813,6 +2813,11 @@ Sema::BuildMemInitializer(Decl *ConstructorD,
-                           SourceLocation IdLoc,
-                           Expr *Init,
-                           SourceLocation EllipsisLoc) {
-+  ExprResult Res = CorrectDelayedTyposInExpr(Init);
-+  if (!Res.isUsable())
-+    return true;
-+  Init = Res.get();
-+
-   if (!ConstructorD)
-     return true;
- 
-diff --git a/test/SemaCXX/typo-correction-delayed.cpp b/test/SemaCXX/typo-correction-delayed.cpp
-index f7ef015..d303b58 100644
---- a/test/SemaCXX/typo-correction-delayed.cpp
-+++ b/test/SemaCXX/typo-correction-delayed.cpp
-@@ -112,3 +112,10 @@ void test_paren_suffix() {
-   foo::bar({5, 6});  // expected-error-re {{no member named 'bar' in namespace 'foo'{{$}}}} \
-                      // expected-error {{expected expression}}
- }
-+
-+const int kNum = 10;  // expected-note {{'kNum' declared here}}
-+class SomeClass {
-+  int Kind;
-+public:
-+  explicit SomeClass() : Kind(kSum) {}  // expected-error {{use of undeclared identifier 'kSum'; did you mean 'kNum'?}}
-+};
-EOF
-patch -p1
-popd
-
-# Apply r224172: "Typo correction: Ignore temporary binding exprs after overload resolution"
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Sema/SemaExprCXX.cpp
-+++ b/lib/Sema/SemaExprCXX.cpp
-@@ -6105,8 +6105,13 @@ public:
-     auto Result = BaseTransform::RebuildCallExpr(Callee, LParenLoc, Args,
-                                                  RParenLoc, ExecConfig);
-     if (auto *OE = dyn_cast<OverloadExpr>(Callee)) {
--      if (!Result.isInvalid() && Result.get())
--        OverloadResolution[OE] = cast<CallExpr>(Result.get())->getCallee();
-+      if (!Result.isInvalid() && Result.get()) {
-+        Expr *ResultCall = Result.get();
-+        if (auto *BE = dyn_cast<CXXBindTemporaryExpr>(ResultCall))
-+          ResultCall = BE->getSubExpr();
-+        if (auto *CE = dyn_cast<CallExpr>(ResultCall))
-+          OverloadResolution[OE] = CE->getCallee();
-+      }
-     }
-     return Result;
-   }
-diff --git a/test/SemaCXX/typo-correction-delayed.cpp b/test/SemaCXX/typo-correction-delayed.cpp
-index d303b58..d42888f 100644
---- a/test/SemaCXX/typo-correction-delayed.cpp
-+++ b/test/SemaCXX/typo-correction-delayed.cpp
-@@ -119,3 +119,23 @@ class SomeClass {
- public:
-   explicit SomeClass() : Kind(kSum) {}  // expected-error {{use of undeclared identifier 'kSum'; did you mean 'kNum'?}}
- };
-+
-+extern "C" int printf(const char *, ...);
-+
-+// There used to be an issue with typo resolution inside overloads.
-+struct AssertionResult {
-+  ~AssertionResult();
-+  operator bool();
-+  int val;
-+};
-+AssertionResult Compare(const char *a, const char *b);
-+AssertionResult Compare(int a, int b);
-+int main() {
-+  // expected-note@+1 {{'result' declared here}}
-+  const char *result;
-+  // expected-error@+1 {{use of undeclared identifier 'resulta'; did you mean 'result'?}}
-+  if (AssertionResult ar = (Compare("value1", resulta)))
-+    ;
-+  else
-+    printf("ar: %d\n", ar.val);
-+}
-EOF
-patch -p1
-popd
-
-# Apply r224173: "Implement feedback on r224172 in PR21899"
-pushd "${CLANG_DIR}"
-cat << 'EOF' |
---- a/lib/Sema/SemaExprCXX.cpp
-+++ b/lib/Sema/SemaExprCXX.cpp
-@@ -6105,7 +6105,7 @@ public:
-     auto Result = BaseTransform::RebuildCallExpr(Callee, LParenLoc, Args,
-                                                  RParenLoc, ExecConfig);
-     if (auto *OE = dyn_cast<OverloadExpr>(Callee)) {
--      if (!Result.isInvalid() && Result.get()) {
-+      if (Result.isUsable()) {
-         Expr *ResultCall = Result.get();
-         if (auto *BE = dyn_cast<CXXBindTemporaryExpr>(ResultCall))
-           ResultCall = BE->getSubExpr();
-diff --git a/test/SemaCXX/typo-correction-delayed.cpp b/test/SemaCXX/typo-correction-delayed.cpp
-index d42888f..7879d29 100644
---- a/test/SemaCXX/typo-correction-delayed.cpp
-+++ b/test/SemaCXX/typo-correction-delayed.cpp
-@@ -120,22 +120,13 @@ public:
-   explicit SomeClass() : Kind(kSum) {}  // expected-error {{use of undeclared identifier 'kSum'; did you mean 'kNum'?}}
- };
- 
--extern "C" int printf(const char *, ...);
--
- // There used to be an issue with typo resolution inside overloads.
--struct AssertionResult {
--  ~AssertionResult();
--  operator bool();
--  int val;
--};
--AssertionResult Compare(const char *a, const char *b);
--AssertionResult Compare(int a, int b);
--int main() {
-+struct AssertionResult { ~AssertionResult(); };
-+AssertionResult Overload(const char *a);
-+AssertionResult Overload(int a);
-+void UseOverload() {
-   // expected-note@+1 {{'result' declared here}}
-   const char *result;
-   // expected-error@+1 {{use of undeclared identifier 'resulta'; did you mean 'result'?}}
--  if (AssertionResult ar = (Compare("value1", resulta)))
--    ;
--  else
--    printf("ar: %d\n", ar.val);
-+  Overload(resulta);
- }
-EOF
-patch -p1
-popd
-
 
 # This Go bindings test doesn't work after the bootstrap build on Linux. (PR21552)
 pushd "${LLVM_DIR}"
@@ -941,4 +597,4 @@ if [[ -n "$run_tests" ]]; then
 fi
 
 # After everything is done, log success for this revision.
-echo "${CLANG_AND_PLUGINS_REVISION}" > "${STAMP_FILE}"
+echo "${PACKAGE_VERSION}" > "${STAMP_FILE}"