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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 `{{.*}} `.
13 lines
233 B
C++
13 lines
233 B
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=powerpc-unknown-linux | FileCheck %s
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struct S {
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S();
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~S();
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};
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void byval(S one, S two) {
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one = two;
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}
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// CHECK: define{{.*}} void @_Z5byval1SS_(%struct.S* %one, %struct.S* %two)
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