Update to Rust master #1
Comments
thehydroimpulse
pushed a commit
that referenced
this issue
Aug 7, 2014
```Rust
struct With {
x: int,
f: NoCopy
}
#[no_mangle]
fn bar() {
let mine = With { x: 3, f: NoCopy };
match mine {
c => {
foo(c);
}
}
}
#[no_mangle]
fn foo(_: With) {}
```
Before:
```LLVM
define internal void @bar() unnamed_addr #1 {
entry-block:
%mine = alloca %"struct.With<[]>"
%__llmatch = alloca %"struct.With<[]>"*
%c = alloca %"struct.With<[]>"
%0 = getelementptr inbounds %"struct.With<[]>"* %mine, i32 0, i32 0
store i64 3, i64* %0
%1 = getelementptr inbounds %"struct.With<[]>"* %mine, i32 0, i32 1
store %"struct.With<[]>"* %mine, %"struct.With<[]>"** %__llmatch
br label %case_body
case_body: ; preds = %entry-block
%2 = load %"struct.With<[]>"** %__llmatch
%3 = bitcast %"struct.With<[]>"* %2 to i8*
%4 = bitcast %"struct.With<[]>"* %c to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %3, i64 8, i32 8, i1 false)
%5 = load %"struct.With<[]>"* %c
call void @foo(%"struct.With<[]>" %5)
br label %join
join: ; preds = %case_body
ret void
}
```
After:
```LLVM
define internal void @bar() unnamed_addr #1 {
entry-block:
%mine = alloca %"struct.With<[]>"
%c = alloca %"struct.With<[]>"*
%0 = getelementptr inbounds %"struct.With<[]>"* %mine, i32 0, i32 0
store i64 3, i64* %0
%1 = getelementptr inbounds %"struct.With<[]>"* %mine, i32 0, i32 1
store %"struct.With<[]>"* %mine, %"struct.With<[]>"** %c
br label %case_body
case_body: ; preds = %entry-block
%2 = load %"struct.With<[]>"** %c
%3 = load %"struct.With<[]>"* %2
call void @foo(%"struct.With<[]>" %3)
br label %join
join: ; preds = %case_body
ret void
}
```
r? @pcwalton
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
StrBuf->Stringyeah!The text was updated successfully, but these errors were encountered: