[cfe-commits] [PATCH] make __builtin_annotation generic

[Xi Wang]

Hi,

Currently __builtin_annotation() only annotates an i32.

	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

Please review.  Thanks.

- xi
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