1b1c8d83d3
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
29 lines
910 B
C++
29 lines
910 B
C++
// Assert that the ABI switch uses the proper codegen. Fuchsia uses the
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// "return this" ABI on constructors and destructors by default, but if we
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// explicitly choose the generic itanium C++ ABI, we should not return "this" on
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// ctors/dtors.
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//
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-fuchsia -fc++-abi=itanium | FileCheck %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=aarch64-unknown-fuchsia -fc++-abi=itanium | FileCheck %s
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class A {
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public:
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virtual ~A();
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int x_;
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};
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class B : public A {
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public:
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B(int *i);
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virtual ~B();
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int *i_;
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};
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B::B(int *i) : i_(i) {}
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B::~B() {}
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// CHECK: define{{.*}} void @_ZN1BC2EPi(%class.B* {{[^,]*}} %this, i32* noundef %i)
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// CHECK: define{{.*}} void @_ZN1BC1EPi(%class.B* {{[^,]*}} %this, i32* noundef %i)
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// CHECK: define{{.*}} void @_ZN1BD2Ev(%class.B* {{[^,]*}} %this)
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// CHECK: define{{.*}} void @_ZN1BD1Ev(%class.B* {{[^,]*}} %this)
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