feeefb214d
We'd like to remove support for terminatepad from LLVM. To do this, we need to move Clang off of it first. The intent behind terminatepad was to carefully model exception specifications for the MSVC personality. However, we don't support exception specifications for the MSVC personality and neither does MSVC. Instead, MSVC supports all-or-nothing exception specifications. We can model this limited usage using cleanuppads which call std::terminate. Differential Revision: http://reviews.llvm.org/D15478 llvm-svn: 255521
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
// RUN: %clang_cc1 %s -triple i686-pc-win32 -fms-extensions -fexceptions -fcxx-exceptions -fnew-ms-eh -emit-llvm -o - -std=c++11 | FileCheck %s
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int f(int);
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void test_catch() {
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try {
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f(1);
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} catch (int) {
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f(2);
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} catch (double) {
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f(3);
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}
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}
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// CHECK-LABEL: define void @"\01?test_catch@@YAXXZ"(
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// CHECK: invoke i32 @"\01?f@@YAHH@Z"(i32 1)
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// CHECK: to label %[[NORMAL:.*]] unwind label %[[CATCHSWITCH:.*]]
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// CHECK: [[CATCHSWITCH]]
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// CHECK: %[[CATCHSWITCHPAD:.*]] = catchswitch within none [label %[[CATCH_INT:.*]], label %[[CATCH_DOUBLE:.*]]] unwind to caller
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// CHECK: [[CATCH_INT]]
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// CHECK: %[[CATCHPAD_INT:.*]] = catchpad within %[[CATCHSWITCHPAD]] [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i8* null]
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// CHECK: call i32 @"\01?f@@YAHH@Z"(i32 2)
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// CHECK: catchret from %[[CATCHPAD_INT]] to label %[[LEAVE_INT_CATCH:.*]]
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// CHECK: [[LEAVE_INT_CATCH]]
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// CHECK: br label %[[LEAVE_FUNC:.*]]
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// CHECK: [[LEAVE_FUNC]]
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// CHECK: ret void
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// CHECK: [[CATCH_DOUBLE]]
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// CHECK: %[[CATCHPAD_DOUBLE:.*]] = catchpad within %[[CATCHSWITCHPAD]] [%rtti.TypeDescriptor2* @"\01??_R0N@8", i32 0, i8* null]
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// CHECK: call i32 @"\01?f@@YAHH@Z"(i32 3)
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// CHECK: catchret from %[[CATCHPAD_DOUBLE]] to label %[[LEAVE_DOUBLE_CATCH:.*]]
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// CHECK: [[LEAVE_DOUBLE_CATCH]]
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// CHECK: br label %[[LEAVE_FUNC]]
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// CHECK: [[NORMAL]]
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// CHECK: br label %[[LEAVE_FUNC]]
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struct Cleanup {
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~Cleanup() { f(-1); }
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};
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void test_cleanup() {
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Cleanup C;
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f(1);
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}
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// CHECK-LABEL: define {{.*}} @"\01?test_cleanup@@YAXXZ"(
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// CHECK: invoke i32 @"\01?f@@YAHH@Z"(i32 1)
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// CHECK: to label %[[LEAVE_FUNC:.*]] unwind label %[[CLEANUP:.*]]
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// CHECK: [[LEAVE_FUNC]]
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// CHECK: call x86_thiscallcc void @"\01??_DCleanup@@QAE@XZ"(
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// CHECK: ret void
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// CHECK: [[CLEANUP]]
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// CHECK: %[[CLEANUPPAD:.*]] = cleanuppad within none []
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// CHECK: call x86_thiscallcc void @"\01??_DCleanup@@QAE@XZ"(
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// CHECK: cleanupret from %[[CLEANUPPAD]] unwind to caller
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// CHECK-LABEL: define {{.*}} void @"\01??1Cleanup@@QAE@XZ"(
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// CHECK: invoke i32 @"\01?f@@YAHH@Z"(i32 -1)
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// CHECK: to label %[[LEAVE_FUNC:.*]] unwind label %[[TERMINATE:.*]]
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// CHECK: [[LEAVE_FUNC]]
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// CHECK: ret void
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// CHECK: [[TERMINATE]]
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// CHECK: cleanuppad within none []
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// CHECK-NEXT: call void @"\01?terminate@@YAXXZ"()
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