47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample-thinlto-summary.prof %s -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=SAMPLEPGO
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// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample-thinlto-summary.prof %s -emit-llvm -flto=thin -o - 2>&1 | FileCheck %s -check-prefix=THINLTO
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// RUN: %clang_cc1 -O2 -fexperimental-new-pass-manager -fprofile-sample-use=%S/Inputs/pgo-sample-thinlto-summary.prof %s -emit-llvm -o - 2>&1 | FileCheck %s -check-prefix=SAMPLEPGO
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// RUN: %clang_cc1 -O2 -fexperimental-new-pass-manager -fprofile-sample-use=%S/Inputs/pgo-sample-thinlto-summary.prof %s -emit-llvm -flto=thin -o - 2>&1 | FileCheck %s -check-prefix=THINLTO
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// Checks if hot call is inlined by normal compile, but not inlined by
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// thinlto compile.
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int baz(int);
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int g;
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void foo(int n) {
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for (int i = 0; i < n; i++)
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g += baz(i);
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}
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// SAMPLEPGO-LABEL: define void @bar
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// THINLTO-LABEL: define void @bar
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// SAMPLEPGO-NOT: call{{.*}}foo
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// THINLTO: call{{.*}}foo
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void bar(int n) {
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for (int i = 0; i < n; i++)
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foo(i);
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}
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// Checks if loop unroll is invoked by normal compile, but not thinlto compile.
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// SAMPLEPGO-LABEL: define void @unroll
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// THINLTO-LABEL: define void @unroll
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// SAMPLEPGO: call{{.*}}baz
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// SAMPLEPGO: call{{.*}}baz
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// THINLTO: call{{.*}}baz
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// THINLTO-NOT: call{{.*}}baz
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void unroll() {
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for (int i = 0; i < 2; i++)
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baz(i);
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}
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// Checks that icp is not invoked for ThinLTO, but invoked for normal samplepgo.
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// SAMPLEPGO-LABEL: define void @icp
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// THINLTO-LABEL: define void @icp
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// SAMPLEPGO: if.true.direct_targ
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// FIXME: the following condition needs to be reversed once
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// LTOPreLinkDefaultPipeline is customized.
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// THINLTO-NOT: if.true.direct_targ
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void icp(void (*p)()) {
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p();
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}
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