14 Commits

Author SHA1 Message Date
Paulo Matos
8d0c889752 [clang][WebAssembly] Initial support for reference type funcref in clang
This is the funcref counterpart to 890146b. We introduce a new attribute
that marks a function pointer as a funcref. It also implements builtin
__builtin_wasm_ref_null_func(), that returns a null funcref value.

Differential Revision: https://reviews.llvm.org/D128440
2023-03-17 18:31:44 +01:00
Paulo Matos
890146b192 [WebAssembly] Initial support for reference type externref in clang
This patch introduces a new type __externref_t that denotes a WebAssembly opaque
reference type. It also implements builtin __builtin_wasm_ref_null_extern(),
that returns a null value of __externref_t. This lays the ground work
for further builtins and reference types.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D122215
2023-02-17 18:48:48 -08:00
Vitaly Buka
bccf5999d3 Revert "[clang][WebAssembly] Initial support for reference type externref in clang"
Very likely breaks stage 3 of msan build bot.
Good: 764c88a50ac76a2df2d051a0eb5badc6867aabb6 https://lab.llvm.org/buildbot/#/builders/74/builds/17058
Looks unrelated: 48b5a06dfcab12cf093a1a3df42cb5b684e2be4c
Bad: 48b5a06dfcab12cf093a1a3df42cb5b684e2be4c https://lab.llvm.org/buildbot/#/builders/74/builds/17059

This reverts commit eb66833d19573df97034a81279eda31b8d19815b.
2023-02-05 21:41:48 -08:00
Paulo Matos
eb66833d19 [clang][WebAssembly] Initial support for reference type externref in clang
This patch introduces a new type __externref_t that denotes a WebAssembly opaque
reference type. It also implements builtin __builtin_wasm_ref_null_extern(),
that returns a null value of __externref_t. This lays the ground work
for further builtins and reference types.

Differential Revision: https://reviews.llvm.org/D122215
2023-01-31 17:34:01 +01:00
Xiang Li
7e04c0ad63 [HLSL] Add groupshare address space.
Added keyword, LangAS and TypeAttrbute for groupshared.

Tanslate it to LangAS with asHLSLLangAS.

Make sure it translated into address space 3 for DirectX target.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D135060
2022-10-20 09:29:09 -07:00
Aaron Ballman
2cb2cd242c Change the behavior of implicit int diagnostics
C89 allowed a type specifier to be elided with the resulting type being
int, aka implicit int behavior. This feature was subsequently removed
in C99 without a deprecation period, so implementations continued to
support the feature. Now, as with implicit function declarations, is a
good time to reevaluate the need for this support.

This patch allows -Wimplicit-int to issue warnings in C89 mode (off by
default), defaults the warning to an error in C99 through C17, and
disables support for the feature entirely in C2x. It also removes a
warning about missing declaration specifiers that really was just an
implicit int warning in disguise and other minor related cleanups.
2022-05-04 08:35:47 -04:00
Alexey Bader
2ab513cd3e [SYCL] Enable opencl_global_[host,device] attributes for SYCL
Differential Revision: https://reviews.llvm.org/D100396
2021-05-18 10:27:35 +03:00
Pratyush Das
99d63ccff0 Add type information to integral template argument if required.
Non-comprehensive list of cases:
 * Dumping template arguments;
 * Corresponding parameter contains a deduced type;
 * Template arguments are for a DeclRefExpr that hadMultipleCandidates()

Type information is added in the form of prefixes (u8, u, U, L),
suffixes (U, L, UL, LL, ULL) or explicit casts to printed integral template
argument, if MSVC codeview mode is disabled.

Differential revision: https://reviews.llvm.org/D77598
2021-05-12 19:00:08 +00:00
Alexey Bader
7818906ca1 [SYCL] Implement SYCL address space attributes handling
Default address space (applies when no explicit address space was
specified) maps to generic (4) address space.

Added SYCL named address spaces `sycl_global`, `sycl_local` and
`sycl_private` defined as sub-sets of the default address space.

Static variables without address space now reside in global address
space when compile for SPIR target, unless they have an explicit address
space qualifier in source code.

Differential Revision: https://reviews.llvm.org/D89909
2021-04-26 13:44:10 +03:00
Alexey Bader
8d27be8dba [OpenCL] Add global_device and global_host address spaces
This patch introduces 2 new address spaces in OpenCL: global_device and global_host
which are a subset of a global address space, so the address space scheme will be
looking like:

```
generic->global->host
                          ->device
             ->private
             ->local
constant
```

Justification: USM allocations may be associated with both host and device memory. We
want to give users a way to tell the compiler the allocation type of a USM pointer for
optimization purposes. (Link to the Unified Shared Memory extension:
https://github.com/intel/llvm/blob/sycl/sycl/doc/extensions/USM/cl_intel_unified_shared_memory.asciidoc)

Before this patch USM pointer could be only in opencl_global
address space, hence a device backend can't tell if a particular pointer
points to host or device memory. On FPGAs at least we can generate more
efficient hardware code if the user tells us where the pointer can point -
being able to distinguish between these types of pointers at compile time
allows us to instantiate simpler load-store units to perform memory
transactions.

Patch by Dmitry Sidorov.

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D82174
2020-07-29 17:24:53 +03:00
Amy Huang
a85f5efd95 Add support for the MS qualifiers __ptr32, __ptr64, __sptr, __uptr.
Summary:
This adds parsing of the qualifiers __ptr32, __ptr64, __sptr, and __uptr and
lowers them to the corresponding address space pointer for 32-bit and 64-bit pointers.
(32/64-bit pointers added in https://reviews.llvm.org/D69639)

A large part of this patch is making these pointers ignore the address space
when doing things like overloading and casting.

https://bugs.llvm.org/show_bug.cgi?id=42359

Reviewers: rnk, rsmith

Subscribers: jholewinski, jvesely, nhaehnle, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71039
2019-12-18 10:41:12 -08:00
Yaxun Liu
b7318e02c1 [OpenCL] Add LangAS::opencl_private to represent private address space in AST
Currently Clang uses default address space (0) to represent private address space for OpenCL
in AST. There are two issues with this:

Multiple address spaces including private address space cannot be diagnosed.
There is no mangling for default address space. For example, if private int* is emitted as
i32 addrspace(5)* in IR. It is supposed to be mangled as PUAS5i but it is mangled as
Pi instead.

This patch attempts to represent OpenCL private address space explicitly in AST. It adds
a new enum LangAS::opencl_private and adds it to the variable types which are implicitly
private:

automatic variables without address space qualifier

function parameter

pointee type without address space qualifier (OpenCL 1.2 and below)

Differential Revision: https://reviews.llvm.org/D35082

llvm-svn: 315668
2017-10-13 03:37:48 +00:00
Andrew Gozillon
25b16572e9 Dependent Address Space Support Test Fix
Modifying a non-type template integer arguement that is causing errors 
in some builds as it's too large for 32-bit longs. This hopefully (and 
seems to when testing) should fix all of the build bot errors relating 
to this test. I also modified the name of the function call to be more 
apt.

Differential Revision: https://reviews.llvm.org/D33666

llvm-svn: 314668
2017-10-02 13:32:59 +00:00
Andrew Gozillon
0cd141ba9d Dependent Address Space Support Test File
Adding regression test for Dependent Address Spaces in relation to
https://reviews.llvm.org/D33666 I forgot to svn add the test file 
before commiting the prior changes. I appologies. 

llvm-svn: 314650
2017-10-02 06:31:25 +00:00