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
1.0 KiB
Objective-C
29 lines
1.0 KiB
Objective-C
// 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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// rdar://problem/47499250
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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(%0* noundef %foo, %1* noundef %bar)
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void test(Foo *foo, Bar *bar) {
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// CHECK: [[ADDR_FOO:%.*]] = bitcast %0* %{{.*}} to i8*
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// CHECK-NEXT: call i1 @llvm.is.constant.p0i8(i8* [[ADDR_FOO]])
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// CHECK: [[ADDR_BAR:%.*]] = bitcast %1* %{{.*}} to i8*
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// CHECK-NEXT: call i1 @llvm.is.constant.p0i8(i8* [[ADDR_BAR]])
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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(i8* noundef %object, i8* noundef %klass)
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void test_more(id object, Class klass) {
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// CHECK: call i1 @llvm.is.constant.p0i8(i8* %{{.*}})
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// CHECK: call i1 @llvm.is.constant.p0i8(i8* %{{.*}})
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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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