derek.holloway
7502bf64a4
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93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
// RUN: %clang_cc1 -O2 -emit-obj -fdiagnostics-show-inlining-chain %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=HEURISTIC
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// RUN: %clang_cc1 -O2 -emit-obj -fdiagnostics-show-inlining-chain -debug-info-kind=line-directives-only %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=DEBUG
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// Verify auto-selection works between debug info and heuristic fallback. When
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// we have at least -gline-directives-only we can use DILocation for accurate
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// inline locations.
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// Without that debug info we fall back to a heuristic approach using srcloc
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// metadata.
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[[gnu::warning("dangerous function")]]
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void dangerous();
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// Non-static, non-inline functions that get inlined at -O2.
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void wrapper() {
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dangerous();
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}
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void middle() {
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wrapper();
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}
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void caller() {
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middle();
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}
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// HEURISTIC: :16:{{.*}}: warning: call to '{{.*}}dangerous{{.*}}'
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// HEURISTIC: :16:{{.*}}: note: called by function '{{.*}}wrapper{{.*}}'
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// HEURISTIC: :16:{{.*}}: note: inlined by function '{{.*}}middle{{.*}}'
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// HEURISTIC: :16:{{.*}}: note: inlined by function '{{.*}}caller{{.*}}'
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// HEURISTIC: note: use '-gline-directives-only' (implied by '-g1') or higher for more accurate inlining chain locations
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// DEBUG: :16:{{.*}}: warning: call to '{{.*}}dangerous{{.*}}'
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// DEBUG: :16:{{.*}}: note: called by function '{{.*}}wrapper{{.*}}'
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// DEBUG: :20:{{.*}}: note: inlined by function '{{.*}}middle{{.*}}'
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// DEBUG: :24:{{.*}}: note: inlined by function '{{.*}}caller{{.*}}'
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// DEBUG-NOT: note: use '-gline-directives-only'
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// Test that functions in anonymous namespaces are properly tracked for
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// inlining chain diagnostics. Anonymous namespace functions have internal
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// linkage and are prime candidates for inlining.
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[[gnu::warning("do not call")]]
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void bad_func();
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namespace {
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void anon_helper() {
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bad_func();
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}
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void anon_middle() {
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anon_helper();
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}
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} // namespace
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void public_caller() {
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anon_middle();
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}
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// HEURISTIC: :49:{{.*}}: warning: call to '{{.*}}bad_func{{.*}}'
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// HEURISTIC: :49:{{.*}}: note: called by function '{{.*}}anon_helper{{.*}}'
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// HEURISTIC: :53:{{.*}}: note: inlined by function '{{.*}}anon_middle{{.*}}'
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// HEURISTIC: :58:{{.*}}: note: inlined by function '{{.*}}public_caller{{.*}}'
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// DEBUG: :49:{{.*}}: warning: call to '{{.*}}bad_func{{.*}}'
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// DEBUG: :49:{{.*}}: note: called by function '{{.*}}anon_helper{{.*}}'
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// DEBUG: :53:{{.*}}: note: inlined by function '{{.*}}anon_middle{{.*}}'
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// DEBUG: :58:{{.*}}: note: inlined by function '{{.*}}public_caller{{.*}}'
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// always_inline forces inlining but doesn't imply
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// isInlined() in the language sense.
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[[gnu::warning("always inline warning")]]
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void always_inline_target();
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__attribute__((always_inline))
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void always_inline_wrapper() {
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always_inline_target();
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}
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void always_inline_caller() {
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always_inline_wrapper();
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}
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// HEURISTIC: :79:{{.*}}: warning: call to '{{.*}}always_inline_target{{.*}}'
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// HEURISTIC: :79:{{.*}}: note: called by function '{{.*}}always_inline_wrapper{{.*}}'
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// HEURISTIC: :83:{{.*}}: note: inlined by function '{{.*}}always_inline_caller{{.*}}'
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// DEBUG: :79:{{.*}}: warning: call to '{{.*}}always_inline_target{{.*}}'
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// DEBUG: :79:{{.*}}: note: called by function '{{.*}}always_inline_wrapper{{.*}}'
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// DEBUG: :83:{{.*}}: note: inlined by function '{{.*}}always_inline_caller{{.*}}'
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