r302775 - Driver must return non-zero code on errors in command line

Serge Pavlov via cfe-commits cfe-commits at lists.llvm.org
Thu May 11 01:00:34 PDT 2017


Author: sepavloff
Date: Thu May 11 03:00:33 2017
New Revision: 302775

URL: http://llvm.org/viewvc/llvm-project?rev=302775&view=rev
Log:
Driver must return non-zero code on errors in command line

Now if clang driver is given wrong arguments, in some cases it
continues execution and returns zero code. This change fixes this
behavior.

The fix revealed some errors in clang test set.

File test/Driver/gfortran.f90 added in r118203 checks forwarding
gfortran flags to GCC. Now driver reports error on this file, because
the option -working-directory implemented in clang differs from the
option with the same name implemented in gfortran, in clang the option
requires argument, in gfortran does not.

In the file test/Driver/arm-darwin-builtin.c clang is called with
options -fbuiltin-strcat and -fbuiltin-strcpy. These option were removed
in r191435 and now clang reports error on this test.

File arm-default-build-attributes.s uses option -verify, which is not
supported by driver, it is cc1 option.

Similarly, the file split-debug.h uses options -fmodules-embed-all-files
and -fmodule-format=obj, which are not supported by driver.

Other revealed errors are mainly mistypes.

Differential Revision: https://reviews.llvm.org/D33013

Removed:
    cfe/trunk/test/Driver/arm-darwin-builtin.c
Modified:
    cfe/trunk/lib/Driver/Driver.cpp
    cfe/trunk/test/Driver/aarch64-cpus.c
    cfe/trunk/test/Driver/amdgpu-features.c
    cfe/trunk/test/Driver/arm-default-build-attributes.s
    cfe/trunk/test/Driver/cl-outputs.c
    cfe/trunk/test/Driver/clang_f_opts.c
    cfe/trunk/test/Driver/cuda-external-tools.cu
    cfe/trunk/test/Driver/debug-options.c
    cfe/trunk/test/Driver/gfortran.f90
    cfe/trunk/test/Driver/split-debug.h
    cfe/trunk/test/Driver/unknown-arg.c
    cfe/trunk/test/Index/index-attrs.c
    cfe/trunk/test/Index/index-attrs.cpp
    cfe/trunk/tools/driver/driver.cpp

Modified: cfe/trunk/lib/Driver/Driver.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Driver.cpp (original)
+++ cfe/trunk/lib/Driver/Driver.cpp Thu May 11 03:00:33 2017
@@ -598,6 +598,8 @@ Compilation *Driver::BuildCompilation(Ar
   bool CCCPrintPhases;
 
   InputArgList Args = ParseArgStrings(ArgList.slice(1));
+  if (Diags.hasErrorOccurred())
+    return nullptr;
 
   // Silence driver warnings if requested
   Diags.setIgnoreAllWarnings(Args.hasArg(options::OPT_w));

Modified: cfe/trunk/test/Driver/aarch64-cpus.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/aarch64-cpus.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/aarch64-cpus.c (original)
+++ cfe/trunk/test/Driver/aarch64-cpus.c Thu May 11 03:00:33 2017
@@ -11,7 +11,7 @@
 // RUN: %clang -target arm64 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
 // RUN: %clang -target arm64 -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
 // RUN: %clang -target arm64 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
-// RUN: %clang -target arm64 -mlittle-endian -mcpu-generic -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
+// RUN: %clang -target arm64 -mlittle-endian -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
 
 // ARM64-GENERIC: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
 

Modified: cfe/trunk/test/Driver/amdgpu-features.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/amdgpu-features.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/amdgpu-features.c (original)
+++ cfe/trunk/test/Driver/amdgpu-features.c Thu May 11 03:00:33 2017
@@ -1,7 +1,7 @@
-// RUN: %clang -### -target amdgcn -x cl -S -emit-llvm -mcpu=kaveri -mamdgpu-debugger-abi=0.0 %s -o 2>&1 \
+// RUN: %clang -### -target amdgcn -x cl -S -emit-llvm -mcpu=kaveri -mamdgpu-debugger-abi=0.0 %s -o - 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-MAMDGPU-DEBUGGER-ABI-0-0 %s
 // CHECK-MAMDGPU-DEBUGGER-ABI-0-0: the clang compiler does not support '-mamdgpu-debugger-abi=0.0'
 
-// RUN: %clang -### -target amdgcn -x cl -S -emit-llvm -mcpu=kaveri -mamdgpu-debugger-abi=1.0 %s -o 2>&1 \
+// RUN: %clang -### -target amdgcn -x cl -S -emit-llvm -mcpu=kaveri -mamdgpu-debugger-abi=1.0 %s -o - 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-MAMDGPU-DEBUGGER-ABI-1-0 %s
 // CHECK-MAMDGPU-DEBUGGER-ABI-1-0: "-target-feature" "+amdgpu-debugger-insert-nops" "-target-feature" "+amdgpu-debugger-reserve-regs" "-target-feature" "+amdgpu-debugger-emit-prologue"

Removed: cfe/trunk/test/Driver/arm-darwin-builtin.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/arm-darwin-builtin.c?rev=302774&view=auto
==============================================================================
--- cfe/trunk/test/Driver/arm-darwin-builtin.c (original)
+++ cfe/trunk/test/Driver/arm-darwin-builtin.c (removed)
@@ -1,14 +0,0 @@
-// FIXME: Disable pending PR4941.
-// RUX: clang -target x86_64-apple-darwin9 -arch arm -### -fsyntax-only %s 2> %t &&
-// RUX: grep -- "-fno-builtin-strcat" %t &&
-// RUX: grep -- "-fno-builtin-strcpy" %t &&
-
-// FIXME: Disable pending PR4941.
-// RUX: clang -target x86_64-apple-darwin9 -arch arm -### -fsyntax-only %s -fbuiltin-strcat -fbuiltin-strcpy 2> %t &&
-// RUX: not grep -- "-fno-builtin-strcat" %t &&
-// RUX: not grep -- "-fno-builtin-strcpy" %t &&
-
-// RUN: %clang -target x86_64-apple-darwin9 -arch arm -### -fsyntax-only %s -fbuiltin-strcat -fbuiltin-strcpy 2> %t
-// RUN: not grep -- "-fno-builtin-strcat" %t
-// RUN: not grep -- "-fno-builtin-strcpy" %t
-

Modified: cfe/trunk/test/Driver/arm-default-build-attributes.s
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/arm-default-build-attributes.s?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/arm-default-build-attributes.s (original)
+++ cfe/trunk/test/Driver/arm-default-build-attributes.s Thu May 11 03:00:33 2017
@@ -10,9 +10,9 @@
 
 // Option ignored C/C++ (since we always emit hardware and ABI build attributes
 // during codegen).
-// RUN: %clang -target armv7--none-eabi -### -x c %s -mdefault-build-attributes -verify 2>&1 \
+// RUN: %clang -target armv7--none-eabi -### -x c %s -mdefault-build-attributes 2>&1 \
 // RUN:    | FileCheck %s -check-prefix CHECK-DISABLED
-// RUN: %clang -target armv7--none-eabi -### -x c++ %s -mdefault-build-attributes -verify 2>&1 \
+// RUN: %clang -target armv7--none-eabi -### -x c++ %s -mdefault-build-attributes 2>&1 \
 // RUN:    | FileCheck %s -check-prefix CHECK-DISABLED
 
 // CHECK-DISABLED-NOT: "-arm-add-build-attributes"

Modified: cfe/trunk/test/Driver/cl-outputs.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/cl-outputs.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/cl-outputs.c (original)
+++ cfe/trunk/test/Driver/cl-outputs.c Thu May 11 03:00:33 2017
@@ -73,7 +73,7 @@
 // RUN: %clang_cl /c /o .. -### -- %s 2>&1 | FileCheck -check-prefix=oCRAZY2 %s
 // oCRAZY2:  "-o" "..obj"
 
-// RUN: %clang_cl /c %s -### /o 2>&1 | FileCheck -check-prefix=oMISSINGARG %s
+// RUN: not %clang_cl /c %s -### /o 2>&1 | FileCheck -check-prefix=oMISSINGARG %s
 // oMISSINGARG: error: argument to '/o' is missing (expected 1 value)
 
 // RUN: %clang_cl /c /omydir/ -### -- %s %s 2>&1 | FileCheck -check-prefix=CHECK-oMULTIPLESOURCEOK1 %s
@@ -208,7 +208,7 @@
 // FeoDIRNAMEEXTDLL: "-out:foo.dir{{[/\\]+}}a.ext"
 // FeoDIRNAMEEXTDLL: "-implib:foo.dir{{[/\\]+}}a.lib"
 
-// RUN: %clang_cl -### /o 2>&1 | FileCheck -check-prefix=FeoMISSINGARG %s
+// RUN: not %clang_cl -### /o 2>&1 | FileCheck -check-prefix=FeoMISSINGARG %s
 // FeoMISSINGARG: error: argument to '/o' is missing (expected 1 value)
 
 // RUN: %clang_cl /ofoo /o bar -### -- %s 2>&1 | FileCheck -check-prefix=FeoOVERRIDE %s

Modified: cfe/trunk/test/Driver/clang_f_opts.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/clang_f_opts.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/clang_f_opts.c (original)
+++ cfe/trunk/test/Driver/clang_f_opts.c Thu May 11 03:00:33 2017
@@ -186,7 +186,7 @@
 // CHECK-NO-SLP-VECTORIZE-AGG-NOT: "-vectorize-slp-aggressive"
 
 // RUN: %clang -### -S -fextended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-EXTENDED-IDENTIFIERS %s
-// RUN: %clang -### -S -fno-extended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-NO-EXTENDED-IDENTIFIERS %s
+// RUN: not %clang -### -S -fno-extended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-NO-EXTENDED-IDENTIFIERS %s
 // CHECK-EXTENDED-IDENTIFIERS: "-cc1"
 // CHECK-EXTENDED-IDENTIFIERS-NOT: "-fextended-identifiers"
 // CHECK-NO-EXTENDED-IDENTIFIERS: error: unsupported option '-fno-extended-identifiers'

Modified: cfe/trunk/test/Driver/cuda-external-tools.cu
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/cuda-external-tools.cu?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/cuda-external-tools.cu (original)
+++ cfe/trunk/test/Driver/cuda-external-tools.cu Thu May 11 03:00:33 2017
@@ -24,8 +24,8 @@
 // RUN: | FileCheck -check-prefix ARCH64 -check-prefix SM20 -check-prefix DBG %s
 
 // --no-cuda-noopt-device-debug overrides --cuda-noopt-device-debug.
-// RUN: %clang -### -target x86_64-linux-gnu --cuda-noopt-debug \
-// RUN:   --no-cuda-noopt-debug -O2 -c %s 2>&1 \
+// RUN: %clang -### -target x86_64-linux-gnu --cuda-noopt-device-debug \
+// RUN:   --no-cuda-noopt-device-debug -O2 -c %s 2>&1 \
 // RUN: | FileCheck -check-prefix ARCH64 -check-prefix SM20 -check-prefix OPT2 %s
 
 // Regular compile without -O.  This should result in us passing -O0 to ptxas.

Modified: cfe/trunk/test/Driver/debug-options.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/debug-options.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/debug-options.c (original)
+++ cfe/trunk/test/Driver/debug-options.c Thu May 11 03:00:33 2017
@@ -80,7 +80,7 @@
 // RUN: %clang -### -c -gdwarf-2 %s 2>&1 \
 // RUN:             | FileCheck -check-prefix=G_ONLY_DWARF2 %s
 //
-// RUN: %clang -### -c -gfoo %s 2>&1 | FileCheck -check-prefix=G_NO %s
+// RUN: not %clang -### -c -gfoo %s 2>&1 | FileCheck -check-prefix=G_ERR %s
 // RUN: %clang -### -c -g -g0 %s 2>&1 | FileCheck -check-prefix=G_NO %s
 // RUN: %clang -### -c -ggdb0 %s 2>&1 | FileCheck -check-prefix=G_NO %s
 // RUN: %clang -### -c -glldb -g0 %s 2>&1 | FileCheck -check-prefix=G_NO %s
@@ -171,6 +171,8 @@
 // G_PS4: "-dwarf-version=
 // G_PS4: "-generate-arange-section"
 //
+// G_ERR: error: unknown argument:
+//
 // G_NO: "-cc1"
 // G_NO-NOT: -debug-info-kind=
 //

Modified: cfe/trunk/test/Driver/gfortran.f90
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/gfortran.f90?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/gfortran.f90 (original)
+++ cfe/trunk/test/Driver/gfortran.f90 Thu May 11 03:00:33 2017
@@ -106,7 +106,6 @@
 ! RUN:     -fsyntax-only \
 ! RUN:     -funderscoring \
 ! RUN:     -fwhole-file \
-! RUN:     -fworking-directory \
 ! RUN:     -imultilib \
 ! RUN:     -iprefix \
 ! RUN:     -iquote \
@@ -226,7 +225,6 @@
 ! CHECK: "-fstack-arrays"
 ! CHECK: "-funderscoring"
 ! CHECK: "-fwhole-file"
-! CHECK: "-fworking-directory"
 ! CHECK: "-imultilib"
 ! CHECK: "-iprefix"
 ! CHECK: "-iquote"

Modified: cfe/trunk/test/Driver/split-debug.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/split-debug.h?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/split-debug.h (original)
+++ cfe/trunk/test/Driver/split-debug.h Thu May 11 03:00:33 2017
@@ -3,13 +3,4 @@
 // RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -fmodules -### %s 2> %t
 // RUN: FileCheck -check-prefix=CHECK-NO-ACTIONS < %t %s
 //
-// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -fmodules -emit-module -fmodules-embed-all-files -fno-implicit-modules -fno-implicit-module-maps -### %s 2> %t
-// RUN: FileCheck -check-prefix=CHECK-NO-ACTIONS < %t %s
-//
-// FIXME: This should fail using clang, except that the type of the output for
-// an object output with modules is given as clang::driver::types::TY_PCH
-// rather than TY_Object.
-// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -fmodules -fmodule-format=obj -### %s 2> %t
-// RUN: FileCheck -check-prefix=CHECK-NO-ACTIONS < %t %s
-//
 // CHECK-NO-ACTIONS-NOT: objcopy

Modified: cfe/trunk/test/Driver/unknown-arg.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/unknown-arg.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Driver/unknown-arg.c (original)
+++ cfe/trunk/test/Driver/unknown-arg.c Thu May 11 03:00:33 2017
@@ -1,8 +1,8 @@
-// RUN: %clang %s -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -### 2>&1 | \
+// RUN: not %clang %s -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -### 2>&1 | \
 // RUN: FileCheck %s
 // RUN: %clang_cl -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -### -c -- %s 2>&1 | \
 // RUN: FileCheck %s --check-prefix=CL
-// RUN: %clang_cl -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -c -Werror=unknown-argument -### -- %s 2>&1 | \
+// RUN: not %clang_cl -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -c -Werror=unknown-argument -### -- %s 2>&1 | \
 // RUN: FileCheck %s --check-prefix=CL-ERROR
 // RUN: %clang_cl -cake-is-lie -%0 -%d -HHHH -munknown-to-clang-option -print-stats -funknown-to-clang-option -c -Wno-unknown-argument -### -- %s 2>&1 | \
 // RUN: FileCheck %s --check-prefix=SILENT

Modified: cfe/trunk/test/Index/index-attrs.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/index-attrs.c?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Index/index-attrs.c (original)
+++ cfe/trunk/test/Index/index-attrs.c Thu May 11 03:00:33 2017
@@ -1,16 +1,16 @@
-// RUN: c-index-test -index-file -check-prefix CHECK %s -target armv7-windows-gnu -fdeclspec
+// RUN: c-index-test -index-file %s -target armv7-windows-gnu -fdeclspec 2>&1 | FileCheck %s
 
 void __declspec(dllexport) export_function(void) {}
-// CHECK: [indexDeclaraton]: kind: function | name: export_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: export_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllexport)
 void __attribute__((dllexport)) export_gnu_attribute(void) {}
-// CHECK: [indexDeclaration] kind: function | name: export_gnu_attribute | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: export_gnu_attribute | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllexport)
 
 void __declspec(dllimport) import_function(void);
-// CHECK: [indexDeclaration] kind: function | name: import_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: import_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllimport)
 void __attribute__((dllimport)) import_gnu_attribute(void);
-// CHECK: [indexDeclaration] kind: function | name: import_gnu_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: import_gnu_attribute | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllimport)
 

Modified: cfe/trunk/test/Index/index-attrs.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/index-attrs.cpp?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/test/Index/index-attrs.cpp (original)
+++ cfe/trunk/test/Index/index-attrs.cpp Thu May 11 03:00:33 2017
@@ -1,4 +1,4 @@
-// RUN: c-index-test -index-file -check-prefix CHECK %s -target armv7-windows-gnu -fdeclspec
+// RUN: c-index-test -index-file %s -target armv7-windows-gnu -fdeclspec | FileCheck %s
 
 struct __declspec(dllexport) export_s {
   void m();
@@ -19,7 +19,7 @@ struct __declspec(dllimport) import_s {
 class __attribute__((dllexport)) export_gnu_s {
   void m();
 };
-// CHECK: [indexDeclaration]: kind: struct | name: export_gnu_s | {{.*}} | lang: C++
+// CHECK: [indexDeclaration]: kind: c++-class | name: export_gnu_s | {{.*}} | lang: C++
 // CHECK: <attribute>: attribute(dllexport)
 // CHECK: [indexDeclaration]: kind: c++-instance-method | name: m | {{.*}} | lang: C++
 // CHECK: <attribute>: attribute(dllexport)
@@ -27,24 +27,24 @@ class __attribute__((dllexport)) export_
 class __attribute__((dllimport)) import_gnu_s {
   void m();
 };
-// CHECK: [indexDeclaration]: kind: struct | name: import_gnu_s | {{.*}} | lang: C++
+// CHECK: [indexDeclaration]: kind: c++-class | name: import_gnu_s | {{.*}} | lang: C++
 // CHECK: <attribute>: attribute(dllimport)
 // CHECK: [indexDeclaration]: kind: c++-instance-method | name: m | {{.*}} | lang: C++
 // CHECK: <attribute>: attribute(dllimport)
 
 extern "C" void __declspec(dllexport) export_function(void) {}
-// CHECK: [indexDeclaraton]: kind: function | name: export_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: export_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllexport)
 extern "C" void __attribute__((dllexport)) export_gnu_function(void) {}
-// CHECK: [indexDeclaraton]: kind: function | name: export_gnu_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: export_gnu_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllexport)
 
 extern "C" {
 void __declspec(dllimport) import_function(void);
-// CHECK: [indexDeclaration] kind: function | name: import_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: import_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllimport)
 void __attribute__((dllimport)) import_gnu_function(void);
-// CHECK: [indexDeclaration] kind: function | name: import_gnu_function | {{.*}} | lang: C
+// CHECK: [indexDeclaration]: kind: function | name: import_gnu_function | {{.*}} | lang: C
 // CHECK: <attribute>: attribute(dllimport)
 }
 

Modified: cfe/trunk/tools/driver/driver.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/driver/driver.cpp?rev=302775&r1=302774&r2=302775&view=diff
==============================================================================
--- cfe/trunk/tools/driver/driver.cpp (original)
+++ cfe/trunk/tools/driver/driver.cpp Thu May 11 03:00:33 2017
@@ -454,40 +454,41 @@ int main(int argc_, const char **argv_)
   SetBackdoorDriverOutputsFromEnvVars(TheDriver);
 
   std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(argv));
-  int Res = 0;
-  SmallVector<std::pair<int, const Command *>, 4> FailingCommands;
-  if (C.get())
+  int Res = 1;
+  if (C.get()) {
+    SmallVector<std::pair<int, const Command *>, 4> FailingCommands;
     Res = TheDriver.ExecuteCompilation(*C, FailingCommands);
 
-  // Force a crash to test the diagnostics.
-  if (TheDriver.GenReproducer) {
-    Diags.Report(diag::err_drv_force_crash)
+    // Force a crash to test the diagnostics.
+    if (TheDriver.GenReproducer) {
+      Diags.Report(diag::err_drv_force_crash)
         << !::getenv("FORCE_CLANG_DIAGNOSTICS_CRASH");
 
-    // Pretend that every command failed.
-    FailingCommands.clear();
-    for (const auto &J : C->getJobs())
-      if (const Command *C = dyn_cast<Command>(&J))
-        FailingCommands.push_back(std::make_pair(-1, C));
-  }
+      // Pretend that every command failed.
+      FailingCommands.clear();
+      for (const auto &J : C->getJobs())
+        if (const Command *C = dyn_cast<Command>(&J))
+          FailingCommands.push_back(std::make_pair(-1, C));
+    }
 
-  for (const auto &P : FailingCommands) {
-    int CommandRes = P.first;
-    const Command *FailingCommand = P.second;
-    if (!Res)
-      Res = CommandRes;
-
-    // If result status is < 0, then the driver command signalled an error.
-    // If result status is 70, then the driver command reported a fatal error.
-    // On Windows, abort will return an exit code of 3.  In these cases,
-    // generate additional diagnostic information if possible.
-    bool DiagnoseCrash = CommandRes < 0 || CommandRes == 70;
+    for (const auto &P : FailingCommands) {
+      int CommandRes = P.first;
+      const Command *FailingCommand = P.second;
+      if (!Res)
+        Res = CommandRes;
+
+      // If result status is < 0, then the driver command signalled an error.
+      // If result status is 70, then the driver command reported a fatal error.
+      // On Windows, abort will return an exit code of 3.  In these cases,
+      // generate additional diagnostic information if possible.
+      bool DiagnoseCrash = CommandRes < 0 || CommandRes == 70;
 #ifdef LLVM_ON_WIN32
-    DiagnoseCrash |= CommandRes == 3;
+      DiagnoseCrash |= CommandRes == 3;
 #endif
-    if (DiagnoseCrash) {
-      TheDriver.generateCompilationDiagnostics(*C, *FailingCommand);
-      break;
+      if (DiagnoseCrash) {
+        TheDriver.generateCompilationDiagnostics(*C, *FailingCommand);
+        break;
+      }
     }
   }
 




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