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351241c83e
CodeGen-level implementation. Instead of adding an attribute to clang's FunctionDecl, add the IR attribute directly. This means a module built with this flag is now compatible with code built without it and vice versa. This change also results in the 'noalias' attribute no longer being added to calls to operator new in the IR; it's now only added to the declaration. It also fixes a bug where we failed to add the attribute to the 'nothrow' versions (because we didn't implicitly declare them, there was no good time to inject a fake attribute). llvm-svn: 265728
50 lines
697 B
C++
50 lines
697 B
C++
// RUN: %clang_cc1 %s -triple x86_64-unknown-unknown -emit-llvm -o - | FileCheck %s
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// PR6641
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extern "C" int printf(const char *, ...);
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struct Foo {
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Foo() : iFoo (2) {
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printf("%p\n", this);
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}
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int iFoo;
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};
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typedef Foo (*T)[3][4];
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T bar() {
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return new Foo[2][3][4];
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}
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T bug(int i) {
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return new Foo[i][3][4];
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}
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void pr(T a) {
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for (int i = 0; i < 3; i++)
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for (int j = 0; j < 4; j++)
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printf("%p\n", a[i][j]);
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}
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Foo *test() {
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return new Foo[5];
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}
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int main() {
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T f = bar();
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pr(f);
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f = bug(3);
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pr(f);
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Foo * g = test();
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for (int i = 0; i < 5; i++)
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printf("%d\n", g[i].iFoo);
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return 0;
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}
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// CHECK: call i8* @_Znam
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// CHECK: call i8* @_Znam
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// CHECK: call i8* @_Znam
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