llvm-project/clang/test/CodeGen/xray-ignore-loops.cpp
Ian Levesque 1d62be2441 [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
2020-01-17 13:32:24 -08:00

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// 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;
}
// CHECK: define i32 @_Z3foov() #[[ATTRS:[0-9]+]] {
// CHECK-DAG: attributes #[[ATTRS]] = {{.*}} "xray-ignore-loops" {{.*}}