forked from OSchip/llvm-project
94 lines
3.7 KiB
C++
94 lines
3.7 KiB
C++
// Test instrumentation of C++ exception handling constructs.
|
|
|
|
// FIXME: Don't seek bb labels, like "if.else"
|
|
// REQUIRES: asserts
|
|
|
|
// RUN: %clang_cc1 -no-opaque-pointers %s -o - -emit-llvm -fprofile-instrument=clang -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOGEN %s
|
|
// RUN: %clang_cc1 -no-opaque-pointers %s -o - -emit-llvm -fprofile-instrument=clang -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOGEN-EXC %s
|
|
|
|
// RUN: llvm-profdata merge %S/Inputs/cxx-throws.proftext -o %t.profdata
|
|
// RUN: %clang_cc1 -no-opaque-pointers %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE %s
|
|
// RUN: %clang_cc1 -no-opaque-pointers %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -fexceptions -fcxx-exceptions -triple %itanium_abi_triple | FileCheck -check-prefix=PGOUSE-EXC %s
|
|
|
|
// PGOGEN: @[[THC:__profc__Z6throwsv]] = {{(private|internal)}} global [9 x i64] zeroinitializer
|
|
// PGOGEN-EXC: @[[THC:__profc__Z6throwsv]] = {{(private|internal)}} global [9 x i64] zeroinitializer
|
|
// PGOGEN: @[[UNC:__profc__Z11unreachablei]] = {{(private|internal)}} global [3 x i64] zeroinitializer
|
|
|
|
// PGOGEN-LABEL: @_Z6throwsv()
|
|
// PGOUSE-LABEL: @_Z6throwsv()
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 0
|
|
void throws() {
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 1
|
|
// PGOUSE: br {{.*}} !prof ![[TH1:[0-9]+]]
|
|
for (int i = 0; i < 100; ++i) {
|
|
try {
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 3
|
|
// PGOUSE: br {{.*}} !prof ![[TH2:[0-9]+]]
|
|
if (i % 3) {
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 4
|
|
// PGOUSE: br {{.*}} !prof ![[TH3:[0-9]+]]
|
|
if (i < 50)
|
|
throw 1;
|
|
} else {
|
|
// The catch block may be emitted after the throw above, we can skip it
|
|
// by looking for an else block, but this will break if anyone puts an
|
|
// else in the catch
|
|
// PGOUSE: if.else{{.*}}:
|
|
// PGOGEN: if.else{{.*}}:
|
|
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 5
|
|
// PGOUSE: br {{.*}} !prof ![[TH4:[0-9]+]]
|
|
if (i >= 50)
|
|
throw 0;
|
|
}
|
|
} catch (int e) {
|
|
// PGOUSE-EXC: catch{{.*}}:
|
|
// PGOGEN-EXC: catch{{.*}}:
|
|
|
|
// PGOGEN-EXC: store {{.*}} @[[THC]], i32 0, i32 6
|
|
// PGOGEN-EXC: store {{.*}} @[[THC]], i32 0, i32 7
|
|
// PGOUSE-EXC: br {{.*}} !prof ![[TH5:[0-9]+]]
|
|
if (e) {}
|
|
}
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 2
|
|
|
|
// PGOGEN: store {{.*}} @[[THC]], i32 0, i32 8
|
|
// PGOUSE: br {{.*}} !prof ![[TH6:[0-9]+]]
|
|
if (i < 100) {}
|
|
}
|
|
|
|
// PGOUSE-NOT: br {{.*}} !prof ![0-9]+
|
|
// PGOUSE: ret void
|
|
}
|
|
|
|
// PGOGEN-LABEL: @_Z11unreachablei(i32
|
|
// PGOUSE-LABEL: @_Z11unreachablei(i32
|
|
// PGOGEN: store {{.*}} @[[UNC]], i32 0, i32 0
|
|
void unreachable(int i) {
|
|
// PGOGEN: store {{.*}} @[[UNC]], i32 0, i32 1
|
|
// PGOUSE: br {{.*}} !prof ![[UN1:[0-9]+]]
|
|
if (i)
|
|
throw i;
|
|
|
|
// PGOGEN: store {{.*}} @[[UNC]], i32 0, i32 2
|
|
// Since we never reach here, the weights should all be zero (and skipped)
|
|
// PGOUSE-NOT: br {{.*}} !prof !{{.*}}
|
|
if (i) {}
|
|
}
|
|
|
|
// PGOUSE-DAG: ![[TH1]] = !{!"branch_weights", i32 101, i32 2}
|
|
// PGOUSE-DAG: ![[TH2]] = !{!"branch_weights", i32 67, i32 35}
|
|
// PGOUSE-DAG: ![[TH3]] = !{!"branch_weights", i32 34, i32 34}
|
|
// PGOUSE-DAG: ![[TH4]] = !{!"branch_weights", i32 18, i32 18}
|
|
// PGOUSE-EXC: ![[TH5]] = !{!"branch_weights", i32 34, i32 18}
|
|
// PGOUSE-DAG: ![[TH6]] = !{!"branch_weights", i32 101, i32 1}
|
|
// PGOUSE-DAG: ![[UN1]] = !{!"branch_weights", i32 2, i32 1}
|
|
|
|
int main(int argc, const char *argv[]) {
|
|
throws();
|
|
try {
|
|
unreachable(1);
|
|
} catch (int) {}
|
|
return 0;
|
|
}
|