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61 Commits

Author SHA1 Message Date
Alex Crichton
a8ba31dbf3 std: Remove usage of fmt! 2013-09-30 23:21:18 -07:00
Alex Crichton
817576ee70 Register new snapshots 2013-09-18 11:07:22 -07:00
Daniel Micay
b7435cf447 implement raw pointer comparisons in librustc 
This is mostly for consistency, as you can now compare raw pointers in
constant expressions or without the standard library.

It also reduces the number of `ptrtoint` instructions in the IR, making
tracking down culprits of what's usually an anti-pattern easier.
 2013-09-12 01:58:39 -04:00
Daniel Micay
6919cf5fe1 rename std::iterator to std::iter 
The trait will keep the `Iterator` naming, but a more concise module
name makes using the free functions less verbose. The module will define
iterables in addition to iterators, as it deals with iteration in
general.
 2013-09-09 03:21:46 -04:00
Erick Tryzelaar
91d6c60bed fix various warnings 2013-08-30 15:10:55 -07:00
Alex Crichton
e3662b1880 Remove offset_inbounds for an unsafe offset function 2013-08-27 23:22:52 -07:00
Patrick Walton
5c3504799d librustc: Remove &const and *const from the language. 
They are still present as part of the borrow check.
 2013-08-27 18:46:51 -07:00
bors
9e1e152091 auto merge of #8596 : vadimcn/rust/master, r=alexcrichton 
This resolves issue #908.  

Notable changes:
-  On Windows, LLVM integrated assembler emits bad stack unwind tables when segmented stacks are enabled.  However, unwind info directives in the assembly output are correct, so we generate assembly first and then run it through an external assembler, just like it is already done for Android builds.

- Linker is invoked  via "g++" command instead of "gcc": g++ passes the appropriate magic parameters to the linker, which ensure correct registration of stack unwind tables in dynamic libraries.
 2013-08-22 21:06:25 -07:00
Vadim Chugunov
12ecdb6381 Enabled unit tests in std and extra. 2013-08-22 20:02:20 -07:00
Niko Matsakis
ffb6404c5a Adjust callbacks in the libraries for the new type of extern fns 
cc #3678
 2013-08-21 10:50:42 -04:00
bors
3bc6858428 auto merge of #8551 : huonw/rust/speling, r=alexcrichton 
(This doesn't add/remove `u`s or change `ize` to `ise`, or anything like that.)
 2013-08-18 05:11:58 -07:00
Erick Tryzelaar
be86bc81a7 Fix warnings in tests 2013-08-17 08:41:35 -07:00
bors
680eb71564 auto merge of #8532 : kballard/rust/cstr-cleanup, r=erickt 
Implement interior null checking in `.to_c_str()`, among other changes.
 2013-08-16 06:02:14 -07:00
Huon Wilson
abe94f9b4d doc: correct spelling in documentation. 2013-08-16 15:41:28 +10:00
Daniel Micay
062747b9c9 ptr: inline the Clone implementation 2013-08-15 21:12:34 -04:00
Kevin Ballard
03ef71e262 Add ToCStr method .with_c_str() 
.with_c_str() is a replacement for the old .as_c_str(), to avoid
unnecessary boilerplate.

Replace all usages of .to_c_str().with_ref() with .with_c_str().
 2013-08-15 01:33:10 -07:00
Alex Crichton
930885d5e5 Forbid pub/priv where it has no effect 
Closes #5495
 2013-08-12 23:20:46 -07:00
Daniel Micay
0cb0ef2ca5 fix build with the new snapshot compiler 2013-08-12 17:37:46 -04:00
Erick Tryzelaar
a54476b0aa Merge remote-tracking branch 'remotes/origin/master' into remove-str-trailing-nulls 2013-08-07 14:10:39 -07:00
Daniel Micay
55f3d04101 vec: use offset_inbounds for iterators 
This allows LLVM to optimize vector iterators to an `getelementptr` and
`icmp` pair, instead of `getelementptr` and *two* comparisons.

Code snippet:

~~~
fn foo(xs: &mut [f64]) {
    for x in xs.mut_iter() {
        *x += 10.0;
    }
}
~~~

LLVM IR at stage0:

~~~
; Function Attrs: noinline uwtable
define void @"_ZN3foo17_68e1b25bca131dba7_0$x2e0E"({ i64, %tydesc*, i8*, i8*, i8 }* nocapture, { double*, i64 }* nocapture) #1 {
"function top level":
  %2 = getelementptr inbounds { double*, i64 }* %1, i64 0, i32 0
  %3 = load double** %2, align 8
  %4 = getelementptr inbounds { double*, i64 }* %1, i64 0, i32 1
  %5 = load i64* %4, align 8
  %6 = ptrtoint double* %3 to i64
  %7 = and i64 %5, -8
  %8 = add i64 %7, %6
  %9 = inttoptr i64 %8 to double*
  %10 = icmp eq double* %3, %9
  %11 = icmp eq double* %3, null
  %or.cond6 = or i1 %10, %11
  br i1 %or.cond6, label %match_case, label %match_else

match_else:                                       ; preds = %"function top level", %match_else
  %12 = phi double* [ %13, %match_else ], [ %3, %"function top level" ]
  %13 = getelementptr double* %12, i64 1
  %14 = load double* %12, align 8
  %15 = fadd double %14, 1.000000e+01
  store double %15, double* %12, align 8
  %16 = icmp eq double* %13, %9
  %17 = icmp eq double* %13, null
  %or.cond = or i1 %16, %17
  br i1 %or.cond, label %match_case, label %match_else

match_case:                                       ; preds = %match_else, %"function top level"
  ret void
}
~~~

Optimized LLVM IR at stage1/stage2:

~~~
; Function Attrs: noinline uwtable
define void @"_ZN3foo17_68e1b25bca131dba7_0$x2e0E"({ i64, %tydesc*, i8*, i8*, i8 }* nocapture, { double*, i64 }* nocapture) #1 {
"function top level":
  %2 = getelementptr inbounds { double*, i64 }* %1, i64 0, i32 0
  %3 = load double** %2, align 8
  %4 = getelementptr inbounds { double*, i64 }* %1, i64 0, i32 1
  %5 = load i64* %4, align 8
  %6 = lshr i64 %5, 3
  %7 = getelementptr inbounds double* %3, i64 %6
  %8 = icmp eq i64 %6, 0
  %9 = icmp eq double* %3, null
  %or.cond6 = or i1 %8, %9
  br i1 %or.cond6, label %match_case, label %match_else

match_else:                                       ; preds = %"function top level", %match_else
  %.sroa.0.0.in7 = phi double* [ %10, %match_else ], [ %3, %"function top level" ]
  %10 = getelementptr inbounds double* %.sroa.0.0.in7, i64 1
  %11 = load double* %.sroa.0.0.in7, align 8
  %12 = fadd double %11, 1.000000e+01
  store double %12, double* %.sroa.0.0.in7, align 8
  %13 = icmp eq double* %10, %7
  br i1 %13, label %match_case, label %match_else

match_case:                                       ; preds = %match_else, %"function top level"
  ret void
}
~~~
 2013-08-06 23:54:24 -04:00
Daniel Micay
7d115c9420 add an intrinsic for inbounds GEP 2013-08-06 23:41:20 -04:00
Erick Tryzelaar
5eaa4d1d2f Merge remote-tracking branch 'remotes/origin/master' into remove-str-trailing-nulls 2013-08-06 16:21:02 -07:00
blake2-ppc
ea9c5c405e std: Remove uint::iterate, replaced by range 2013-08-06 04:05:08 +02:00
Erick Tryzelaar
3c94b5044c Merge remote-tracking branch 'remotes/origin/master' into str-remove-null 2013-08-04 16:23:41 -07:00
Erick Tryzelaar
bd908d4c0e std and rustc: explicitly pass c strings to c functions 
When strings lose their trailing null, this pattern will become dangerous:

let foo = "bar";
let foo_ptr: *u8 = &foo[0];

Instead we should use c_strs to handle this correctly.
 2013-08-04 15:45:16 -07:00
Erick Tryzelaar
3102b1797e std: replace str::as_c_str with std::c_str 2013-08-04 14:13:17 -07:00
Daniel Micay
9f74217d80 register snapshots 2013-08-03 21:09:28 -04:00
Daniel Micay
ef870d37a5 implement pointer arithmetic with GEP 
Closes #8118, #7136

~~~rust
extern mod extra;

use std::vec;
use std::ptr;

fn bench_from_elem(b: &mut extra::test::BenchHarness) {
    do b.iter {
        let v: ~[u8] = vec::from_elem(1024, 0u8);
    }
}

fn bench_set_memory(b: &mut extra::test::BenchHarness) {
    do b.iter {
        let mut v: ~[u8] = vec::with_capacity(1024);
        unsafe {
            let vp = vec::raw::to_mut_ptr(v);
            ptr::set_memory(vp, 0, 1024);
            vec::raw::set_len(&mut v, 1024);
        }
    }
}

fn bench_vec_repeat(b: &mut extra::test::BenchHarness) {
    do b.iter {
        let v: ~[u8] = ~[0u8, ..1024];
    }
}
~~~

Before:

    test bench_from_elem ... bench: 415 ns/iter (+/- 17)
    test bench_set_memory ... bench: 85 ns/iter (+/- 4)
    test bench_vec_repeat ... bench: 83 ns/iter (+/- 3)

After:

    test bench_from_elem ... bench: 84 ns/iter (+/- 2)
    test bench_set_memory ... bench: 84 ns/iter (+/- 5)
    test bench_vec_repeat ... bench: 84 ns/iter (+/- 3)
 2013-07-30 02:50:31 -04:00
Erick Tryzelaar
7af56bb921 std: move StrUtil::as_c_str into StrSlice 2013-07-23 16:56:22 -07:00
bors
3514a5af06 auto merge of #7857 : blake2-ppc/rust/fix-test-warnings, r=alexcrichton 
Fix warnings that only show up when compiling the tests for libstd, libextra and one in librusti. Only trivial changes.
 2013-07-18 20:55:38 -07:00
bors
559d2ef925 auto merge of #7842 : thestinger/rust/closure, r=huonw 2013-07-18 08:37:39 -07:00
blake2-ppc
ff9b75f26d Fix warnings in libstd and librusti tests 2013-07-18 02:18:56 +02:00
Patrick Walton
99b33f7219 librustc: Remove all uses of "copy". 2013-07-17 14:57:51 -07:00
Daniel Micay
0bc204e74d rm unnecessary stage0 zero_memory fn 2013-07-17 14:08:54 -04:00
=Mark Sinclair
294999c350 Added overloaded Add and Sub traits for pointer arithmetic 
Implemented ptr arithmetic for *T and *mut T. Tests passing
 2013-07-10 06:34:00 -04:00
Daniel Micay
6f5be9063d ptr: optimize {swap,replace,read}_ptr 2013-07-09 22:44:11 -04:00
Niko Matsakis
59083d2c6a Address nits by @catamorphism 2013-07-08 13:55:10 -04:00
Niko Matsakis
ba13482dfa update ptr intrinsics and rewrite vec routines to be more correct. 
In particular, it is not valid to go around passing uninitialized or zero'd
memory as arguments. Rust should generally be free to assume that the arguments
it gets are valid input values, but the output of intrinsics::uninit() and
intrinsics::init() are not (e.g., an @T is just null, leading to an error
if we should try to increment the ref count).
 2013-07-08 13:53:44 -04:00
Huon Wilson
cdea73cf5b Convert vec::{as_imm_buf, as_mut_buf} to methods. 2013-07-04 00:46:50 +10:00
Alex Crichton
b29c368674 Removing a lot of usage of '&const' 2013-06-29 08:35:48 -07:00
James Miller
3bc4d1a120 Remove all #[cfg(stage0)]-protected code 
New snapshot means this can all go. Also removes places that have
comments that say they are workarounds for stage0 errors.
 2013-06-21 02:43:02 +12:00
Graydon Hoare
d904c72af8 replace #[inline(always)] with #[inline]. r=burningtree. 2013-06-18 14:48:48 -07:00
Daniel Micay
fbae011ad1 fix the docstring for copy_nonoverlapping_memory 2013-06-11 19:06:01 -04:00
Daniel Micay
107e371bf0 fix the ptr::set_memory docstring 2013-06-11 17:48:44 -04:00
Huon Wilson
98ba91f81b remove unused import warnings 2013-06-09 02:22:23 +10:00
Daniel Micay
8bcefef2f2 libc: omit memcpy, memmove and memset 
LLVM provides these functions as intrinsics, and will generate calls to
libc when appropriate. They are exposed in the `ptr` module as
`copy_nonoverlapping_memory`, `copy_memory` and `set_memory`.
 2013-06-06 15:18:45 -04:00
Daniel Micay
e900dba28a rename the Ptr trait to RawPtr 
Closes #6607
 2013-06-03 13:50:29 -04:00
Daniel Micay
454133127a ptr: split out borrowed pointer utilities 
The ptr module is intended to be for raw pointers.

Closes #3111
 2013-06-02 19:24:33 -04:00
Daniel Micay
042618da7b ptr: replace unnecessary unsafe code 2013-05-31 11:32:27 -04:00
Daniel Micay
29aba8033a mv the raw pointer {swap,replace}_ptr to std::ptr 2013-05-31 10:31:26 -04:00