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llvm-project/clang/test/CodeGen/xray-ignore-loops.cpp

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[clang][xray] Add -fxray-ignore-loops option XRay allows tuning by minimum function size, but also always instruments functions with loops in them. If the minimum function size is set to a large value the loop instrumention ends up causing most functions to be instrumented anyway. This adds a new flag, -fxray-ignore-loops, to disable the loop detection logic. Differential Revision: https://reviews.llvm.org/D72873
2020-01-18 05:24:16 +08:00
// RUN: %clang_cc1 -fxray-instrument -fxray-ignore-loops -x c++ -std=c++11 -emit-llvm -o - %s -triple x86_64-unknown-linux-gnu | FileCheck %s
int foo() {
return 1;
}
[xray][clang] Always add xray-skip-entry/exit and xray-ignore-loops attrs The function attributes xray-skip-entry, xray-skip-exit, and xray-ignore-loops were only being applied if a function had an xray-instrument attribute, but they should apply if xray is enabled globally too. Differential Revision: https://reviews.llvm.org/D73842
2020-02-12 05:52:45 +08:00
// CHECK: define{{.*}} i32 @_Z3foov() #[[ATTRS:[0-9]+]] {
[clang][xray] Add -fxray-ignore-loops option XRay allows tuning by minimum function size, but also always instruments functions with loops in them. If the minimum function size is set to a large value the loop instrumention ends up causing most functions to be instrumented anyway. This adds a new flag, -fxray-ignore-loops, to disable the loop detection logic. Differential Revision: https://reviews.llvm.org/D72873
2020-01-18 05:24:16 +08:00
// CHECK-DAG: attributes #[[ATTRS]] = {{.*}} "xray-ignore-loops" {{.*}}