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2dbac1fb8e
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1874 Commits

Author SHA1 Message Date
Ulrik Sverdrup
2dbac1fb8e Add intrinsics for float arithmetic with fast flag enabled 
`fast` a.k.a UnsafeAlgebra is the flag for enabling all "unsafe"
(according to llvm) float optimizations.

See LangRef for more information http://llvm.org/docs/LangRef.html#fast-math-flags

Providing these operations with less precise associativity rules (for
example) is useful to numerical applications.

For example, the summation loop:

    let sum = 0.;
    for element in data {
        sum += *element;
    }

Using the default floating point semantics, this loop expresses the
floats must be added in a sequence, one after another. This constraint
is usually completely unintended, and it means that no autovectorization
is possible.
 2016-03-18 17:31:41 +01:00
Eduard Burtescu
e177207b36 trans: Don't ignore zero-sized struct arguments on x86_64-pc-windows-gnu. 2016-03-18 14:28:11 +02:00
Eduard Burtescu
181097da33 trans: Decide whether to load volatile_store's argument based on its ArgType. 2016-03-18 05:29:53 +02:00
Eduard Burtescu
9a8b80762b trans: Pass newtypes of immediates as their inner-most type again. 2016-03-18 01:01:47 +02:00
Eduard Burtescu
02a141a550 mir: Don't memset allocas of types that do not require drop. 2016-03-17 22:48:07 +02:00
Eduard Burtescu
460e66457a mir: Store immediates used for indirect arguments in an alloca. 2016-03-17 22:48:07 +02:00
Eduard Burtescu
5739ed1f80 trans: Do not depend on having Expr's around for generic_simd_intrinsic. 2016-03-17 22:48:07 +02:00
Eduard Burtescu
7912f94b2d const_eval: Take just one set of substitutions in lookup_const_by_id. 2016-03-17 22:48:07 +02:00
Eduard Burtescu
5eeda543df mir: Use usize instead of u32 for indexing slices. 2016-03-17 21:51:55 +02:00
Eduard Burtescu
835e2bdf7d Add -Z orbit for forcing MIR for everything, unless #[rustc_no_mir] is used. 2016-03-17 21:51:55 +02:00
Eduard Burtescu
856185dbb2 hir, mir: Separate HIR expressions / MIR operands from InlineAsm. 2016-03-17 21:51:55 +02:00
Eduard Burtescu
415d95fbeb mir: Translate Rvalue::Slice without relying on tvec. 2016-03-17 21:51:55 +02:00
Eduard Burtescu
d9277b163c trans: Make everything used from within at_start Builder-friendly. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
82fad1dfc7 mir: Call set_operand_dropped in more places, specifically Unsize casts. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
3e98220a1c mir: Translate intrinsics, via old trans where possible. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
ee7687a5e5 mir: Reintroduce the temporary block after invokes, to handle critical edges. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
41fc5f7c2a mir: Trigger closure instantiations when the closure value is created. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
6c551b3766 trans: Load and cache cross-crate Mir instances in the shared context. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
47cd05c8c1 mir: Don't shadow the "args" variable in Call translation. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
9c6bfe4499 mir: Truncate bool to i1 for SwitchInt. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
38638d37f7 trans: Take a &Builder in call_memcpy, like call_memset. 2016-03-17 21:51:54 +02:00
Eduard Burtescu
b63a5eed6e mir: Support RustCall ABI functions. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
92e485874e mir: Load FatPtr constants instead of keeping them indirect. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
eb43d95211 mir: Don't load the discriminant, it's already in immediate form. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
1de6a9682f mir: Don't use ConstVal kinds that contain local NodeId's. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
b38627dafb mir: Use the right form of GEPi for indexing slices vs arrays. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
56417b3732 mir: Monomorphize LvalueTy's of projections. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
f9c06abc21 trans: Simplify "try" intrinsic. 2016-03-17 21:51:53 +02:00
Eduard Burtescu
6c0674e613 trans: Remove the foreign module. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
aec63821d0 trans: Handle all function setup for all ABIs via FnType. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
bd0a849f3b trans: datum::lvalue_scratch_datum doesn't need a move-into-closure trick. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
03993882d6 trans: Handle calls for all ABIs through FnType. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
9e036c0ff0 trans: Provide the FnType for a direct call via Callee::direct_fn_type. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
80d939fd22 trans: Handle ignored arguments/returns uniformly. 2016-03-17 21:51:52 +02:00
Eduard Burtescu
7454b5c61d trans: Set the calling convention in apply_attrs_callsite. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
77f3484148 trans: Apply all attributes through FnType. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
de5f8244f2 trans: Use llvm::Attributes directly in ArgTy. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
c7172a9935 rustc_llvm: An AttrBuilder that's not completely wasteful. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
1d7c9bd137 trans: use sizing_type_of for interacting with potentially incomplete types. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
d492d09f31 trans: Apply ZExt and StructRet attributes uniformly. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
ac60318cf5 trans: Only mutate ArgTy's in C ABI handling, don't create them. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
03942056aa trans: Handle type_of for Rust fn's via abi::FnType. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
f6bbbe1070 trans: Remove dropflag-unaware type_is_newtype_immediate shortcut. 2016-03-17 21:51:51 +02:00
Eduard Burtescu
200d001784 trans: Pass fat pointers as two arguments even for FFI. 2016-03-17 21:51:50 +02:00
Eduard Burtescu
3342da4113 trans: Don't treat closure types like function types in declare. 2016-03-17 21:51:50 +02:00
Eduard Burtescu
da66431d06 trans: Combine cabi and back::abi into abi. 2016-03-17 21:51:50 +02:00
Eduard Burtescu
cdfad40735 trans: Condense the fn instantiation logic into callee. 2016-03-17 21:51:47 +02:00
Eduard Burtescu
b05556e06d trans: Rename MonoId to Instance and start using it in more places. 2016-03-17 21:51:32 +02:00
Eduard Burtescu
d6e72c48dd trans: Don't store extra copies of intrinsics ID/substs. 2016-03-17 18:19:50 +02:00
Eduard Burtescu
89766a81ef trans: use Cell instead of RefCell where it suffices. 2016-03-17 18:19:50 +02:00