llvm-project

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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -O3 -disable-llvm-passes -o - %s | FileCheck %s
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// Test that can call `__builtin_constant_p` with instances of different
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// Objective-C classes.
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@class Foo;
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@class Bar;
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extern void callee(void);
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// CHECK-LABEL: define{{.*}} void @test(ptr noundef %foo, ptr noundef %bar)
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void test(Foo *foo, Bar *bar) {
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  // CHECK: call i1 @llvm.is.constant.p0(ptr %{{.*}})
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  // CHECK: call i1 @llvm.is.constant.p0(ptr %{{.*}})
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  if (__builtin_constant_p(foo) && __builtin_constant_p(bar))
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    callee();
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}
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// Test other Objective-C types.
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// CHECK-LABEL: define{{.*}} void @test_more(ptr noundef %object, ptr noundef %klass)
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void test_more(id object, Class klass) {
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  // CHECK: call i1 @llvm.is.constant.p0(ptr %{{.*}})
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  // CHECK: call i1 @llvm.is.constant.p0(ptr %{{.*}})
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  if (__builtin_constant_p(object) && __builtin_constant_p(klass))
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    callee();
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}
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