9121220804
Shared objects are fairly broken for InstrProf right now -- a follow-up commit in compiler-rt will fix the rest of this. The main problem here is that at link time, profile data symbols in the shared object might get used instead of symbols from the main executable, creating invalid profile data sections. <rdar://problem/16918688> llvm-svn: 208939
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
// Test instrumentation of C++ exception handling constructs.
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// FIXME: Don't seek bb labels, like "if.else"
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// REQUIRES: asserts
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// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -target %itanium_abi_triple | FileCheck -check-prefix=PGOGEN %s
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// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -target %itanium_abi_triple | FileCheck -check-prefix=PGOGEN-EXC %s
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// RUN: llvm-profdata merge %S/Inputs/cxx-throws.proftext -o %t.profdata
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// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%t.profdata -target %itanium_abi_triple | FileCheck -check-prefix=PGOUSE %s
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// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%t.profdata -target %itanium_abi_triple | FileCheck -check-prefix=PGOUSE-EXC %s
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// PGOGEN: @[[THC:__llvm_profile_counters__Z6throwsv]] = hidden global [9 x i64] zeroinitializer
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// PGOGEN-EXC: @[[THC:__llvm_profile_counters__Z6throwsv]] = hidden global [9 x i64] zeroinitializer
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// PGOGEN-LABEL: @_Z6throwsv()
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// PGOUSE-LABEL: @_Z6throwsv()
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 0
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void throws() {
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 1
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// PGOUSE: br {{.*}} !prof ![[TH1:[0-9]+]]
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for (int i = 0; i < 100; ++i) {
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try {
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 3
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// PGOUSE: br {{.*}} !prof ![[TH2:[0-9]+]]
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if (i % 3) {
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 4
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// PGOUSE: br {{.*}} !prof ![[TH3:[0-9]+]]
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if (i < 50)
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throw 1;
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} else {
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// The catch block may be emitted after the throw above, we can skip it
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// by looking for an else block, but this will break if anyone puts an
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// else in the catch
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// PGOUSE: if.else{{.*}}:
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// PGOGEN: if.else{{.*}}:
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 5
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// PGOUSE: br {{.*}} !prof ![[TH4:[0-9]+]]
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if (i >= 50)
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throw 0;
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}
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} catch (int e) {
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// PGOUSE-EXC: catch{{.*}}:
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// PGOGEN-EXC: catch{{.*}}:
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// PGOGEN-EXC: store {{.*}} @[[THC]], i64 0, i64 6
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// PGOGEN-EXC: store {{.*}} @[[THC]], i64 0, i64 7
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// PGOUSE-EXC: br {{.*}} !prof ![[TH5:[0-9]+]]
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if (e) {}
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}
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 2
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// PGOGEN: store {{.*}} @[[THC]], i64 0, i64 8
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// PGOUSE: br {{.*}} !prof ![[TH6:[0-9]+]]
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if (i < 100) {}
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}
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// PGOUSE-NOT: br {{.*}} !prof ![0-9]+
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// PGOUSE: ret void
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}
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// PGOUSE-DAG: ![[TH1]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
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// PGOUSE-DAG: ![[TH2]] = metadata !{metadata !"branch_weights", i32 67, i32 35}
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// PGOUSE-DAG: ![[TH3]] = metadata !{metadata !"branch_weights", i32 34, i32 34}
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// PGOUSE-DAG: ![[TH4]] = metadata !{metadata !"branch_weights", i32 18, i32 18}
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// PGOUSE-EXC: ![[TH5]] = metadata !{metadata !"branch_weights", i32 34, i32 18}
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// PGOUSE-DAG: ![[TH6]] = metadata !{metadata !"branch_weights", i32 101, i32 1}
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int main(int argc, const char *argv[]) {
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throws();
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return 0;
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}
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