4a5b444371
i32 __builtin_annotation(i32, string);
Applying it to i64 (e.g., long long) generates the following IR.
trunc i64 {{.*}} to i32
call i32 @llvm.annotation.i32
zext i32 {{.*}} to i64
The redundant truncation and extension make the result difficult to use.
This patch makes __builtin_annotation() generic.
type __builtin_annotation(type, string);
For the i64 example, it simplifies the generated IR to:
call i64 @llvm.annotation.i64
Patch by Xi Wang!
llvm-svn: 155764
12 lines
814 B
C
12 lines
814 B
C
// RUN: %clang_cc1 %s -fsyntax-only -verify
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void __attribute__((annotate("foo"))) foo(float *a) {
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__attribute__((annotate("bar"))) int x;
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__attribute__((annotate(1))) int y; // expected-error {{argument to annotate attribute was not a string literal}}
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__attribute__((annotate("bar", 1))) int z; // expected-error {{attribute takes one argument}}
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int u = __builtin_annotation(z, (char*) 0); // expected-error {{second argument to __builtin_annotation must be a non-wide string constant}}
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int v = __builtin_annotation(z, (char*) L"bar"); // expected-error {{second argument to __builtin_annotation must be a non-wide string constant}}
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int w = __builtin_annotation(z, "foo");
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float b = __builtin_annotation(*a, "foo"); // expected-error {{first argument to __builtin_annotation must be an integer}}
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}
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