derek.holloway
7502bf64a4
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58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
// RUN: rm -fr %t.promo.prof
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// RUN: rm -fr %t.nopromo.prof
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// RUN: %clang_pgogen=%t.promo.prof/ -o %t.promo.gen -O2 %s -fno-slp-vectorize
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// RUN: %clang_pgogen=%t.promo.prof/ -o %t.promo.gen.ll -emit-llvm -S -O2 %s -fno-slp-vectorize
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// RUN: cat %t.promo.gen.ll | FileCheck --check-prefix=PROMO %s
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// RUN: %run %t.promo.gen
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// RUN: llvm-profdata merge -o %t.promo.profdata %t.promo.prof/
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// RUN: llvm-profdata show --counts --all-functions %t.promo.profdata > %t.promo.dump
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// RUN: %clang_pgogen=%t.nopromo.prof/ -mllvm -do-counter-promotion=false -mllvm -simplifycfg-sink-common=false -o %t.nopromo.gen -O2 %s -fno-slp-vectorize
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// RUN: %clang_pgogen=%t.nopromo.prof/ -mllvm -do-counter-promotion=false -mllvm -simplifycfg-sink-common=false -o %t.nopromo.gen.ll -emit-llvm -S -O2 %s -fno-slp-vectorize
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// RUN: cat %t.nopromo.gen.ll | FileCheck --check-prefix=NOPROMO %s
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// RUN: %run %t.nopromo.gen
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// RUN: llvm-profdata merge -o %t.nopromo.profdata %t.nopromo.prof/
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// RUN: llvm-profdata show --counts --all-functions %t.nopromo.profdata > %t.nopromo.dump
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// RUN: llvm-profdata show %t.promo.profdata > %t.promo.dump
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// RUN: llvm-profdata show %t.nopromo.profdata > %t.nopromo.dump
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// RUN: diff %t.promo.dump %t.nopromo.dump
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int g;
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__attribute__((noinline)) void bar(int i) { g += i; }
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__attribute__((noinline)) void foo(int n, int N) {
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// PROMO-LABEL: @foo
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// PROMO: load{{.*}}@__profc_foo, align
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// PROMO-NEXT: add
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// PROMO-NEXT: store{{.*}}@__profc_foo, align
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// PROMO-NEXT: load{{.*}}@__profc_foo{{.*}} 8){{.*}}
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// PROMO-NEXT: add
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// PROMO-NEXT: store{{.*}}@__profc_foo{{.*}} 8){{.*}}
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// PROMO-NEXT: load{{.*}}@__profc_foo{{.*}} 16){{.*}}
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// PROMO-NEXT: add
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// PROMO-NEXT: store{{.*}}@__profc_foo{{.*}} 16){{.*}}
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//
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// NOPROMO-LABEL: @foo
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// NOPROMO: load{{.*}}@__profc_foo, align
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// NOPROMO-NEXT: add
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// NOPROMO-NEXT: store{{.*}}@__profc_foo, align
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// NOPROMO: load{{.*}}@__profc_foo{{.*}} 8){{.*}}
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// NOPROMO-NEXT: add
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// NOPROMO-NEXT: store{{.*}}@__profc_foo{{.*}} 8){{.*}}
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// NOPROMO: load{{.*}}@__profc_foo{{.*}} 16){{.*}}
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// NOPROMO-NEXT: add
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// NOPROMO-NEXT: store{{.*}}@__profc_foo{{.*}} 16){{.*}}
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int i = 0;
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while (i < N) {
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if (i < n + 1)
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bar(1);
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else if (i == n - 1)
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bar(2);
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else
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bar(3);
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i++;
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}
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}
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int main() {
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foo(10, 20);
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return 0;
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}
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