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 `{{.*}} `.
14 lines
413 B
C++
14 lines
413 B
C++
// RUN: %clang_cc1 -emit-llvm -triple x86_64-linux-gnu -std=c++11 -o - %s | FileCheck %s
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using size_t = decltype(sizeof(0));
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extern "C" char *something(long long x) {
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}
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// CHECK: @_Znwm ={{.*}} alias i8* (i64), i8* (i64)* @something
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void *operator new(size_t) __attribute__((alias("something")));
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// PR16715: don't assert here.
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// CHECK: call noalias nonnull i8* @_Znwm(i64 4) #3{{$}}
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int *pr16715 = new int;
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