derek.holloway
7502bf64a4
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32 lines
1.6 KiB
C++
32 lines
1.6 KiB
C++
// REQUIRES: x86-registered-target
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//
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-sample-use=%S/Inputs/profile-remap.samples -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SAMPLES
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// RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap.proftext
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
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// RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap_entry.proftext
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR
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namespace Foo {
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struct X {};
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bool cond();
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void bar();
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void baz();
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void function(X x) {
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if (cond())
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bar();
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else
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baz();
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}
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}
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// CHECK: define {{.*}} @_ZN3Foo8functionENS_1XE() {{.*}} !prof [[FUNC_ENTRY:![0-9]*]]
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// CHECK: br i1 {{.*}} !prof [[BR_WEIGHTS:![0-9]*]]
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//
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// FIXME: Laplace's rule of succession is applied to sample profiles...
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// CHECK-SAMPLES-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 1}
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// CHECK-SAMPLES-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 11, i32 91}
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//
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// ... but not to instruction profiles.
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// CHECK-INSTR-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 100}
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// CHECK-INSTR-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 10, i32 90}
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