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 `{{.*}} `.
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s
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#include "Inputs/coroutine.h"
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namespace coro = std::experimental::coroutines_v1;
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struct coro1 {
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struct promise_type {
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coro1 get_return_object();
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coro::suspend_never initial_suspend();
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coro::suspend_never final_suspend() noexcept;
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void return_void();
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};
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};
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coro1 f() {
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co_await coro::suspend_never{};
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}
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// CHECK-LABEL: define{{.*}} void @_Z1fv(
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// CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv(%"struct.std::experimental::coroutines_v1::suspend_never"*
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// CHECK: call void @_ZN5coro112promise_type11return_voidEv(%"struct.coro1::promise_type"* {{[^,]*}} %__promise)
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struct A {
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A();
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~A();
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};
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coro1 f2() {
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co_return (void) A{};
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}
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// CHECK-LABEL: define{{.*}} void @_Z2f2v(
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// CHECK: call void @_ZN1AC1Ev(%struct.A* {{[^,]*}} %[[AVar:.*]])
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// CHECK-NEXT: call void @_ZN1AD1Ev(%struct.A* {{[^,]*}} %[[AVar]])
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// CHECK-NEXT: call void @_ZN5coro112promise_type11return_voidEv(%"struct.coro1::promise_type"*
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struct coro2 {
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struct promise_type {
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coro2 get_return_object();
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coro::suspend_never initial_suspend();
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coro::suspend_never final_suspend() noexcept;
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void return_value(int);
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};
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};
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coro2 g() {
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co_return 42;
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}
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// CHECK-LABEL: define{{.*}} void @_Z1gv(
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// CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv(%"struct.std::experimental::coroutines_v1::suspend_never"*
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// CHECK: call void @_ZN5coro212promise_type12return_valueEi(%"struct.coro2::promise_type"* {{[^,]*}} %__promise, i32 42)
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