forked from OSchip/llvm-project
25 lines
1.4 KiB
C
25 lines
1.4 KiB
C
// Test clang diagnositic handler works in IR file compilation.
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// REQUIRES: x86-registered-target
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// RUN: llvm-profdata merge -o %t1.profdata %S/Inputs/thinlto_expect1.proftext
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// RUN: %clang -O2 -fexperimental-new-pass-manager -flto=thin -g -fprofile-use=%t1.profdata -c -o %t1.bo %s
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// RUN: llvm-lto -thinlto -o %t %t1.bo
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// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -emit-obj -Rpass-analysis=info 2>&1 | FileCheck %s -check-prefix=CHECK-REMARK
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// RUN: llvm-profdata merge -o %t2.profdata %S/Inputs/thinlto_expect2.proftext
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// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use-path=%t2.profdata -emit-obj -Wmisexpect 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING
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// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use-path=%t2.profdata -emit-obj 2>&1 | FileCheck %s -allow-empty -check-prefix=CHECK-NOWARNING
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int sum;
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__attribute__((noinline)) void bar() {
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sum = 1234;
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}
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__attribute__((noinline)) void foo(int m) {
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if (__builtin_expect(m > 9, 1))
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bar();
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}
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// CHECK-REMARK: remark: {{.*}}.c:
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// CHECK-WARNING: warning: Potential performance regression from use of __builtin_expect(): Annotation was correct on {{.*}}.c:{{[0-9]*}}:{{[0-9]*}}: 50.00% (12 / 24) of profiled executions.
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// CHECK-NOWARNING-NOT: warning: {{.*}}.c:{{[0-9]*}}:26: 50.00% (12 / 24)
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