ff08c8e57e
When return out of __try block. In this test case, currently "false" is passed to OutlinedFinally's call. "true" should be passed to indicate abnormal terminations. The rule: Except _leave and fall-through at the end, all other exits in a _try (return/goto/continue/break) are considered as abnormal terminations, NormalCleanupDestSlot is used to indicate abnormal terminations. The problem is, during the processing abnormal terminations, the ExitSwitch is used. However, in this case, Existswitch is route out. One way to fix is to skip route it without a switch. So proper abnormal termination's code could be generated. Differential Revision: https://reviews.llvm.org/D158233
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
// RUN: %clang_cc1 -triple x86_64-windows -fasync-exceptions -fcxx-exceptions -fexceptions -fms-extensions -x c++ -Wno-implicit-function-declaration -S -emit-llvm %s -o - | FileCheck %s
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// CHECK-LABEL: @main()
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// CHECK: invoke void @llvm.seh.try.begin()
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// CHECK: invoke void @llvm.seh.try.begin()
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// CHECK: %[[src:[0-9-]+]] = load volatile i32, ptr %i
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// CHECK-NEXT: i32 noundef %[[src]]
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// CHECK: invoke void @llvm.seh.try.end()
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// CHECK: invoke void @llvm.seh.try.end()
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// CHECK: define internal void @"?fin$0@0@main@@"(i8 noundef %abnormal_termination
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// CHECK: invoke void @llvm.seh.try.begin()
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// CHECK: invoke void @llvm.seh.try.end()
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// *****************************************************************************
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// Abstract: Test __Try in __finally under SEH -EHa option
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void printf(...);
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int volatile *NullPtr = 0;
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int main() {
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for (int i = 0; i < 3; i++) {
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printf(" --- Test _Try in _finally --- i = %d \n", i);
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__try {
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__try {
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printf(" In outer _try i = %d \n", i);
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if (i == 0)
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*NullPtr = 0;
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} __finally {
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__try {
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printf(" In outer _finally i = %d \n", i);
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if (i == 1)
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*NullPtr = 0;
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} __finally {
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printf(" In Inner _finally i = %d \n", i);
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if (i == 2)
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*NullPtr = 0;
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}
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}
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} __except (1) {
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printf(" --- In outer except handler i = %d \n", i);
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}
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}
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return 0;
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}
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// CHECK-LABEL:@"?foo@@YAXXZ"()
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// CHECK: invoke.cont:
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// CHECK: invoke void @llvm.seh.try.begin()
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// CHECK: store volatile i32 1, ptr %cleanup.dest.slot
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// CHECK: invoke void @llvm.seh.try.end()
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// CHECK: invoke.cont2:
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// CHECK: %cleanup.dest = load i32, ptr %cleanup.dest.slot
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// CHECK: %1 = icmp ne i32 %cleanup.dest, 0
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// CHECK: %2 = zext i1 %1 to i8
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// CHECK: call void @"?fin$0@0@foo@@"(i8 noundef %2, ptr noundef %0)
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// CHECK: ehcleanup:
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// CHECK: call void @"?fin$0@0@foo@@"(i8 noundef 1, ptr noundef %4)
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void foo()
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{
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__try {
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return;
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}
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__finally {
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if (_abnormal_termination()) {
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printf("Passed\n");
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} else {
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printf("Failed\n");
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}
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}
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}
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