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Add Hardware Exception tests

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This commit is contained in:
Rafal Kupiec
2020-11-08 23:11:04 +01:00
parent ca2ba1345c
commit 1d621de2be
1 changed files with 178 additions and 0 deletions
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178
patches/llvm/11.0.0/001-hardware-exception-handling.patch
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@@ -473,6 +473,184 @@ index b34243edea3..cbc309a3d42 100644
}
// Handle errors.
diff --git a/clang/test/CodeGen/windows-seh-EHa-CppCatchDotDotDot.cpp b/clang/test/CodeGen/windows-seh-EHa-CppCatchDotDotDot.cpp
new file mode 100644
index 00000000000..4f261ab59ee
--- /dev/null
+++ b/clang/test/CodeGen/windows-seh-EHa-CppCatchDotDotDot.cpp
@@ -0,0 +1,58 @@
+// RUN: %clang_cc1 -triple x86_64-windows -feh-asynch -fcxx-exceptions -fexceptions -fms-extensions -x c++ -Wno-implicit-function-declaration -S -emit-llvm %s -o - | FileCheck %s
+
+// CHECK: define dso_local void @"?crash@@YAXH@Z
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: invoke void @llvm.eha.scope.begin()
+// CHECK: invoke void @llvm.eha.scope.end()
+
+// CHECK: %[[dst:[0-9-]+]] = catchswitch within none [label %catch] unwind to caller
+// CHECK: %[[dst1:[0-9-]+]] = catchpad within %[[dst]] [i8* null, i32 0, i8* null]
+// CHECK: "funclet"(token %[[dst1]])
+
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: %[[src:[0-9-]+]] = load volatile i32, i32* %i
+// CHECK-NEXT: invoke void @"?crash@@YAXH@Z"(i32 %[[src]])
+// CHECK: invoke void @llvm.seh.try.end()
+
+// *****************************************************************************
+// Abstract: Test CPP catch(...) under SEH -EHa option
+
+void printf(...);
+int volatile *NullPtr = 0;
+void foo() {
+ *NullPtr = 0;
+}
+int *pt1, *pt2, *pt3;
+int g;
+void crash(int i) {
+ g = i;
+ try {
+ struct A {
+ A() {
+ printf(" in A ctor \n");
+ if (g == 0)
+ *NullPtr = 0;
+ }
+ ~A() {
+ printf(" in A dtor \n");
+ }
+ } ObjA;
+ if (i == 1)
+ *NullPtr = 0;
+ } catch (...) {
+ printf(" in catch(...) funclet \n");
+ if (i == 1)
+ throw(i);
+ }
+}
+
+int main() {
+ for (int i = 0; i < 2; i++) {
+ __try {
+ crash(i);
+ } __except (1) {
+ printf(" Test CPP unwind: in except handler i = %d \n", i);
+ }
+ }
+ return 0;
+}
diff --git a/clang/test/CodeGen/windows-seh-EHa-CppDtors01.cpp b/clang/test/CodeGen/windows-seh-EHa-CppDtors01.cpp
new file mode 100644
index 00000000000..d731bbb8ad2
--- /dev/null
+++ b/clang/test/CodeGen/windows-seh-EHa-CppDtors01.cpp
@@ -0,0 +1,60 @@
+// RUN: %clang_cc1 -triple x86_64-windows -feh-asynch -fcxx-exceptions -fexceptions -fms-extensions -x c++ -Wno-implicit-function-declaration -S -emit-llvm %s -o - | FileCheck %s
+
+// CHECK: invoke void @llvm.eha.scope.begin()
+// CHECK: invoke void @llvm.eha.scope.begin()
+// CHECK: invoke void @llvm.eha.scope.begin()
+// CHECK: invoke void @llvm.eha.scope.end()
+// CHECK: invoke void @llvm.eha.scope.end()
+// CHECK: invoke void @llvm.eha.scope.end()
+
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: %[[src:[0-9-]+]] = load volatile i32, i32* %i
+// CHECK-NEXT: invoke void @"?crash@@YAXH@Z"(i32 %[[src]])
+// CHECK: invoke void @llvm.seh.try.end()
+
+// ****************************************************************************
+// Abstract: Test CPP unwind Dtoring under SEH -EHa option
+
+void printf(...);
+int volatile *NullPtr = 0;
+void crash(int i) {
+ struct A {
+ ~A() {
+ printf(" in A dtor \n");
+ }
+ } ObjA;
+ if (i == 0)
+ *NullPtr = 0;
+
+ struct B {
+ ~B() {
+ printf(" in B dtor \n");
+ }
+ } ObjB;
+ if (i == 1)
+ *NullPtr = 0;
+
+ struct C {
+ ~C() {
+ printf(" in C dtor \n");
+ }
+ } ObjC;
+ if (i == 2)
+ *NullPtr = 0;
+}
+
+#define TRY __try
+#define CATCH_ALL __except (1)
+
+int g;
+int main() {
+ for (int i = 0; i < 3; i++) {
+ TRY {
+ crash(i);
+ }
+ CATCH_ALL {
+ printf(" Test CPP unwind: in catch handler i = %d \n", i);
+ }
+ }
+ return 0;
+}
diff --git a/clang/test/CodeGen/windows-seh-EHa-TryInFinally.cpp b/clang/test/CodeGen/windows-seh-EHa-TryInFinally.cpp
new file mode 100644
index 00000000000..3efd7d6505f
--- /dev/null
+++ b/clang/test/CodeGen/windows-seh-EHa-TryInFinally.cpp
@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -triple x86_64-windows -feh-asynch -fcxx-exceptions -fexceptions -fms-extensions -x c++ -Wno-implicit-function-declaration -S -emit-llvm %s -o - | FileCheck %s
+
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: %[[src:[0-9-]+]] = load volatile i32, i32* %i
+// CHECK-NEXT: i32 %[[src]]
+// CHECK: invoke void @llvm.seh.try.end()
+// CHECK: invoke void @llvm.seh.try.end()
+
+// CHECK: define internal void @"?fin$0@0@main@@"(i8 %abnormal_termination
+// CHECK: invoke void @llvm.seh.try.begin()
+// CHECK: invoke void @llvm.seh.try.end()
+
+// *****************************************************************************
+// Abstract: Test __Try in __finally under SEH -EHa option
+void printf(...);
+int volatile *NullPtr = 0;
+int main() {
+ for (int i = 0; i < 3; i++) {
+ printf(" --- Test _Try in _finally --- i = %d \n", i);
+ __try {
+ __try {
+ printf(" In outer _try i = %d \n", i);
+ if (i == 0)
+ *NullPtr = 0;
+ } __finally {
+ __try {
+ printf(" In outer _finally i = %d \n", i);
+ if (i == 1)
+ *NullPtr = 0;
+ } __finally {
+ printf(" In Inner _finally i = %d \n", i);
+ if (i == 2)
+ *NullPtr = 0;
+ }
+ }
+ } __except (1) {
+ printf(" --- In outer except handler i = %d \n", i);
+ }
+ }
+ return 0;
+}
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 9b58b9dfb17..1738ccd94ee 100644
--- a/llvm/docs/LangRef.rst