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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 `{{.*}} `.
15 lines
319 B
C++
15 lines
319 B
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
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// RUN: | FileCheck %s
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// PR14638; make sure this doesn't crash.
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struct A {
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bool m_sorted : 1;
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};
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void func1(bool b, A& a1)
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{
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if ((a1.m_sorted = b)) {}
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}
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// CHECK-LABEL: define{{.*}} void @_Z5func1bR1A
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// CHECK: br i1
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// CHECK: ret void
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