ldc/tests/codegen/llvm_used_1.d

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D

// Test that llvm.used is emitted correctly when multiple D modules are compiled into one LLVM module.
// REQUIRES: target_X86
// Explicitly use OS X triple, so that llvm.used is used for moduleinfo globals.
// RUN: %ldc -c -output-ll -O3 %S/inputs/module_ctor.d %s -of=%t.ll -mtriple=x86_64-apple-macosx && FileCheck --check-prefix=LLVM %s < %t.ll
// RUN: %ldc -O3 %S/inputs/module_ctor.d -run %s | FileCheck --check-prefix=EXECUTE %s
// There was a bug where llvm.used was emitted more than once, whose symptom was that suffixed versions would appear: e.g. `@llvm.used.3`.
// Expect 4 llvm.used entries - 2 ModuleInfos refs + ldc.dso_{c,d}tor refs.
// LLVM-NOT: @llvm.used.
// LLVM: @llvm.used = appending global [4 x i8*]
// LLVM-NOT: @llvm.used.
// EXECUTE: ctor
// EXECUTE: main
// EXECUTE: dtor
import core.stdc.stdio;
static ~this()
{
puts("dtor\n");
}
void main() {
puts("main\n");
}