Displaying 1 result from an estimated 1 matches for "memorybuiltins_8cpp_source".
2017 Apr 30
2
allocsize: change from 3.9 to 4.0
Hi all,
I added support for the allocsize function attribute to our compiler
(LDC), thinking that that would enable removal of function calls when the
allocated memory is not used.
For example:
```
declare i8* @my_malloc(i32) allocsize(0)
define void @test_malloc() {
%1 = call i8* @my_malloc(i32 100)
ret void
}
```
I thought the my_alloc call in test_malloc would be removed, but `opt -O3`