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
43 lines
950 B
C++
43 lines
950 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm %s -o - | \
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// RUN: FileCheck %s
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// RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -emit-llvm %s -o - | \
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// RUN: FileCheck %s
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extern "C" int printf(...);
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int f1(int arg) { return arg; };
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int f2(float arg) { return int(arg); };
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typedef int (*fp1)(int);
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typedef int (*fp2)(float);
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struct A {
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operator fp1() { return f1; }
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operator fp2() { return f2; }
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} a;
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// Test for function reference.
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typedef int (&fr1)(int);
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typedef int (&fr2)(float);
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struct B {
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operator fr1() { return f1; }
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operator fr2() { return f2; }
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} b;
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int main()
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{
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int i = a(10); // Calls f1 via pointer returned from conversion function
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printf("i = %d\n", i);
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int j = b(20); // Calls f1 via pointer returned from conversion function
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printf("j = %d\n", j);
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return 0;
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}
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// CHECK: call noundef i32 (i32)* @_ZN1AcvPFiiEEv
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// CHECK: call noundef nonnull i32 (i32)* @_ZN1BcvRFiiEEv
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