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Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
34 lines
926 B
C++
34 lines
926 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -emit-llvm -o - %s | FileCheck %s
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struct Base {
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virtual ~Base();
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} ;
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struct Derived : Base {
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void operator delete(void *) { }
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Derived();
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};
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void foo() {
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Derived d1; // ok
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}
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// CHECK-LABEL: define internal noundef i32 @_Z1fj(
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inline unsigned f(unsigned n) { return n == 0 ? 0 : n + f(n-1); }
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unsigned g(unsigned n) { return f(n); }
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// rdar://problem/10133200: give explicit instantiations external linkage in kernel mode
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// CHECK-LABEL: define{{.*}} void @_Z3barIiEvv()
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template <typename T> void bar() {}
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template void bar<int>();
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// CHECK-LABEL: define internal noundef i32 @_Z5identIiET_S0_(
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template <typename X> X ident(X x) { return x; }
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int foo(int n) { return ident(n); }
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// CHECK-LABEL: define internal void @_ZN7DerivedD1Ev(
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// CHECK-LABEL: define internal void @_ZN7DerivedD0Ev(
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// CHECK-LABEL: define internal void @_ZN7DeriveddlEPv(
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