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| author | Xinliang David Li <davidxl@google.com> | 2017-07-12 23:28:45 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@google.com> | 2017-07-12 23:28:45 +0000 |
| commit | 1832be2ba37b2ca197edf7239eead2f5b43ed838 (patch) | |
| tree | 40fb93c1be246de441e6042ae8959906dd339932 /test/profile | |
| parent | 835fb5484f8b11c84eeb366cbc2cd4f60eff1a47 (diff) | |
[PGO] Add a test for 2-deep loop nest
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307864 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/profile')
| -rw-r--r-- | test/profile/Linux/counter_promo_nest.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/profile/Linux/counter_promo_nest.c b/test/profile/Linux/counter_promo_nest.c new file mode 100644 index 000000000..57e5c61d7 --- /dev/null +++ b/test/profile/Linux/counter_promo_nest.c @@ -0,0 +1,51 @@ +// RUN: rm -fr %t.promo.prof +// RUN: rm -fr %t.nopromo.prof +// RUN: %clang_pgogen=%t.promo.prof/ -o %t.promo.gen -O2 %s +// RUN: %clang_pgogen=%t.promo.prof/ -o %t.promo.gen.ll -emit-llvm -S -O2 %s +// RUN: cat %t.promo.gen.ll | FileCheck --check-prefix=PROMO %s +// RUN: %run %t.promo.gen +// RUN: llvm-profdata merge -o %t.promo.profdata %t.promo.prof/ +// RUN: llvm-profdata show --counts --all-functions %t.promo.profdata > %t.promo.dump +// RUN: %clang_pgogen=%t.nopromo.prof/ -mllvm -do-counter-promotion=false -o %t.nopromo.gen -O2 %s +// RUN: %run %t.nopromo.gen +// RUN: llvm-profdata merge -o %t.nopromo.profdata %t.nopromo.prof/ +// RUN: llvm-profdata show --counts --all-functions %t.nopromo.profdata > %t.nopromo.dump +// RUN: diff %t.promo.profdata %t.nopromo.profdata +int g; +__attribute__((noinline)) void bar() { + g++; +} + +extern int printf(const char*,...); + +int c = 10; + +int main() +// PROMO-LABEL: @main +// PROMO: load{{.*}}@__profc_main{{.*}} +// PROMO-NEXT: add +// PROMO-NEXT: store{{.*}}@__profc_main{{.*}} +// PROMO-NEXT: load{{.*}}@__profc_main{{.*}} +// PROMO-NEXT: add +// PROMO-NEXT: store{{.*}}@__profc_main{{.*}} +// PROMO-NEXT: load{{.*}}@__profc_main{{.*}} +// PROMO-NEXT: add +// PROMO-NEXT: store{{.*}}@__profc_main{{.*}} +{ + int i, j, k; + + g = 0; + for (i = 0; i < c; i++) + for (j = 0; j < c; j++) + for (k = 0; k < c; k++) + bar(); + + for (i = 0; i < c; i++) + for (j = 0; j < 10*c;j++) + bar(); + + for (i = 0; i < 100*c; i++) + bar(); + + return 0; +} |