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 `{{.*}} `.
22 lines
696 B
C++
22 lines
696 B
C++
// RUN: %clang_cc1 -std=c++03 -triple x86_64-pc-linux-gnu %s \
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// RUN: -faligned-allocation -emit-llvm -o - -Wno-c++11-extensions | FileCheck %s
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// Ensure Clang doesn't confuse std::align_val_t with the sized deallocation
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// parameter when the enum type is unscoped. Libc++ does this in C++03 in order
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// to support aligned allocation in that dialect.
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using size_t = __decltype(sizeof(0));
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namespace std {
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enum align_val_t : size_t {};
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}
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_Static_assert(__is_same(__underlying_type(std::align_val_t), size_t), "");
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// CHECK-LABEL: define{{.*}} void @_Z1fPi(
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void f(int *p) {
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// CHECK-NOT: call void @_ZdlPvSt11align_val_t(
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// CHECK: call void @_ZdlPv(
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// CHECK: ret void
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delete p;
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}
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