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fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
23 lines
1.1 KiB
C++
23 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fxray-instrument \
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// RUN: -fxray-instrumentation-bundle=function-entry -x c++ \
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// RUN: -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
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// RUN: | FileCheck --check-prefixes CHECK,SKIPEXIT %s
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// RUN: %clang_cc1 -fxray-instrument \
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// RUN: -fxray-instrumentation-bundle=function-exit -x c++ \
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// RUN: -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
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// RUN: | FileCheck --check-prefixes CHECK,SKIPENTRY %s
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// RUN: %clang_cc1 -fxray-instrument \
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// RUN: -fxray-instrumentation-bundle=function-entry,function-exit -x c++ \
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// RUN: -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
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// RUN: | FileCheck --check-prefixes CHECK,NOSKIPENTRY,NOSKIPEXIT %s
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// CHECK: define{{.*}} void @_Z13justAFunctionv() #[[ATTR:[0-9]+]] {
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void justAFunction() {
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}
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// SKIPENTRY: attributes #[[ATTR]] = {{.*}} "xray-skip-entry" {{.*}}
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// SKIPEXIT: attributes #[[ATTR]] = {{.*}} "xray-skip-exit" {{.*}}
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// NOSKIPENTRY-NOT: attributes #[[ATTR]] = {{.*}} "xray-skip-entry" {{.*}}
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// NOSKIPEXIT-NOT: attributes #[[ATTR]] = {{.*}} "xray-skip-exit" {{.*}}
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