forked from OSchip/llvm-project
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
// RUN: %clang_cc1 -fexperimental-new-pass-manager -fdebug-pass-manager -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 -fexperimental-new-pass-manager -fdebug-pass-manager -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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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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// Checks that loop unroll and icp are invoked by normal compile, but not thinlto compile.
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// SAMPLEPGO: Running pass: PGOIndirectCallPromotion on [module]
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// SAMPLEPGO: Running pass: LoopUnrollPass on bar
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// SAMPLEPGO-OLDPM: PGOIndirectCallPromotion
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// SAMPLEPGO-OLDPM: Unroll loops
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// SAMPLEPGO-OLDPM: Unroll loops
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// THINLTO-NOT: Running pass: PGOIndirectCallPromotion on [module]
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// THINLTO-NOT: Running pass: LoopUnrollPass on bar
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// THINLTO-OLDPM-NOT: PGOIndirectCallPromotion
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// The first Unroll loop pass is the createSimpleLoopUnrollPass that unrolls and peels
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// loops with small constant trip counts. The second one is skipped by ThinLTO.
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// THINLTO-OLDPM: Unroll loops
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// THINLTO-OLDPM-NOT: Unroll loops
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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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// SAMPLEPGO-LABEL: define {{(dso_local )?}}void @bar
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// THINLTO-LABEL: define {{(dso_local )?}}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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