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a4055962fe
This also fixes a pessimization where the `memcmp` call would become an `invoke` if the user provides his own `memcmp` prototype in the code (the prototype would not carry the `nounwind` function attribute).
24 lines
738 B
D
24 lines
738 B
D
// Tests that memcmp array comparisons `call` memcmp instead of `invoke`.
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// RUN: %ldc -c -output-ll -of=%t.ll %s && FileCheck %s --check-prefix=LLVM < %t.ll
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// When the user defines memcmp, it overrides the prototype defined by LDC.
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// The user's prototype does not have the nounwind attribute, and a call to memcmp may become `invoke`.
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extern(C) int memcmp(void*, void*, size_t);
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void foo();
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// Test that memcmp is not `invoked`
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// LLVM-LABEL: define{{.*}} @{{.*}}never_invoke
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void never_invoke(bool[2] a, bool[2] b)
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{
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try
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{
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// LLVM: call i32 @memcmp({{.*}}, {{.*}}, i{{32|64}} 2)
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auto result = a == b;
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foo(); // Compiler has to assume that this may throw
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}
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catch (Exception e)
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{
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}
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}
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