Commit Graph

2412 Commits

Author SHA1 Message Date
Hao Liu a19a2e2da6 [ARM64]Fix a bug cannot select UQSHL/SQSHL with constant i64 shift amount.
llvm-svn: 207401
2014-04-28 07:36:12 +00:00
Saleem Abdulrasool b9f07e3dbc CodeGen: add __yield intrinsic for ARM
The __yield intrinsic generates a hint instruction to indicate that the thread
is not performing any useful operations at the moment.  This is for
compatibility with MSVC, although, the intrinsic is also part of the ACLE, and
is enabled globally as a result.

llvm-svn: 207275
2014-04-25 21:13:29 +00:00
Benjamin Kramer 1adc8c3391 Print detailed vector type information on diagnostics.
We never aka vector types because our attributed syntax for it is less
comprehensible than the typedefs. This leaves the user in the dark when
the typedef isn't named that well.

Example:
  v2s v; v4f w;
  w = v;

The naming in this cases isn't even that bad, but the error we give is
useless without looking up the actual typedefs.
t.c:6:5: error: assigning to 'v4f' from incompatible type 'v2s'

Now:
t.c:6:5: error: assigning to 'v4f' (vector of 4 'float' values) from
    incompatible type 'v2s' (vector of 2 'int' values)

We do this for all diagnostics that print a vector type.

llvm-svn: 207267
2014-04-25 20:41:38 +00:00
Saleem Abdulrasool 0fd930e86c CodeGen: replace use of @llvm.arm.sevl with @llvm.arm.hint
Use the new generic @llvm.arm.hint hint intrinsic rather than the specialised
@llvm.arm.sevl hint instruction.

llvm-svn: 207243
2014-04-25 17:25:46 +00:00
Andrea Di Biagio 7ceec07cf6 [X86] Add Clang support for intrinsics __rdtsc and __rdtscp.
This patch:
 1. Adds a definition for two new GCCBuiltins in BuiltinsX86.def:
   __builtin_ia32_rdtsc;
   __builtin_ia32_rdtscp;

 2. Replaces the already existing definition of intrinsic __rdtsc in
    ia32intrin.h with a simple call to the new GCC builtin __builtin_ia32_rdtsc.

 3. Adds a definition for the new intrinsic __rdtscp in ia32intrin.h

llvm-svn: 207132
2014-04-24 18:26:35 +00:00
Daniel Sanders 81ea601b54 [mips] Support 128-bit int in N32 ABI by overriding TargetInfo::hasInt128Type()
Summary: The condition in the base class is rather strange. It says a target has the 128-bit integer type if the size of a pointer is >= 64-bits. N32 has 32-bit pointers but 64-bit integers. I'm a bit reluctant to change this for all targets so this patch makes the method virtual and overrides it for MIPS64.

Reviewers: atanasyan

Reviewed By: atanasyan

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D3472

llvm-svn: 207121
2014-04-24 16:05:26 +00:00
Tim Northover f4aee52345 AArch64: update tests to new way of printing NEON lists.
llvm-svn: 207117
2014-04-24 14:06:31 +00:00
Michael J. Spencer 807cf41e2f Fix test to not depend on llvm optimizations.
llvm-svn: 207062
2014-04-24 02:16:29 +00:00
James Molloy 3a9a023eb6 [ARM64] Enable more CodeGen tests for ARM64. The crypto and neon intrinsics tests needed changing slightly due to the naming differences between AArch64 and ARM64.
llvm-svn: 206964
2014-04-23 10:26:23 +00:00
James Molloy 8bdd24b1a9 [ARM64] Change inline assembly constraints to be more lax, to match the behaviour of Clang/AArch64 and GCC.
GCC allows sub-64bit values to use the 'r' register constraint.

llvm-svn: 206963
2014-04-23 10:26:19 +00:00
James Molloy a7a23c1cce [ARM64] Enable the test aarch64-type-sizes.c for ARM64 BE.
This completes the port of r203918 (cpirker "AArch64_be specific clang target settings") to ARM64.

llvm-svn: 206962
2014-04-23 10:26:12 +00:00
James Molloy 7f4ba53ef0 [ARM64] Add a missed case label for arm64_be, and enable the aarch64-varargs test for arm64_be.
This ensures that r203917 (cpirker "AArch64_be varargs processing for ARM ABI") is ported to ARM64.

llvm-svn: 206961
2014-04-23 10:26:08 +00:00
Tim Northover 761aa37e3e ARM64: update NEON test to improved backend codegen
llvm-svn: 206890
2014-04-22 12:45:55 +00:00
Bob Wilson 373af73ad4 ARM64: Do not expand variadic HFA/HVA arguments with the Darwin ABI.
Unlike the standard AAPCS64 ABI, variadic arguments are always passed on the
stack with the Darwin ABI, and this was not being considered when deciding
whether to expand HFA/HVA arguments in a call. An HFA argument with a "float"
base type was being expanded into separate "float" arguments, each of which
was then extended to a double, resulting in a serious mismatch from what is
expected by the va_arg implementation. <rdar://problem/15777067>

llvm-svn: 206729
2014-04-21 01:23:39 +00:00
Tim Northover 4dab69815c ARM64: make sure the caller is expected to extend in AAPCS.
This is one of those DarwinPCS differences. It'd been caught in
arguments, but not return values.

llvm-svn: 206594
2014-04-18 13:46:08 +00:00
Tim Northover 07f1624aa2 ARM64: make sure HFAs on the stack get properly aligned.
Another AAPCS bug, part of PR19432.

llvm-svn: 206580
2014-04-18 10:47:44 +00:00
Duncan P. N. Exon Smith 85e349fd2c BackendUtil: Pass through -mdisable-tail-calls
The frontend option -fno-optimize-sibling-calls resolves to -cc1's
-mdisable-tail-calls, which is passed to the TargetMachine in the
backend.  PassManagerBuilder was adding the -tailcallelim pass anyway.

Use a new DisableTailCalls option in PassManagerBuilder to disable tail
calls harder.

Requires the matching commit in LLVM that adds DisableTailCalls.

<rdar://problem/16050591>

llvm-svn: 206543
2014-04-18 01:05:25 +00:00
Tim Northover 5ffc092700 ARM64: remove holes from *all* HFAs on the stack.
My first attempt to make sure HFAs were contiguous was in the block dealing
with padding registers, which meant it only triggered on the first stack-based
HFA. This should extend it to the rest as well.

Another part of PR19432.

llvm-svn: 206456
2014-04-17 10:20:38 +00:00
James Molloy 75f5f9e629 [ARM64] Allow the disabling of NEON and crypto instructions. Update tests to pass -target-feature +neon.
llvm-svn: 206394
2014-04-16 15:33:48 +00:00
Evgeniy Stepanov a8931a4f8c Re-enable several builtins in non-gnu modes.
This is a partial revert of 183015.
By not recognizing things like _setjmp we lose (returns_twice) attribute on
them, which leads to incorrect code generation.
Fixes PR16138.

llvm-svn: 206362
2014-04-16 08:06:33 +00:00
Quentin Colombet 9d8105130a [ARM64] Update tests to reflect the change of the default CPU in llvm.
llvm-svn: 206314
2014-04-15 19:09:58 +00:00
Tim Northover c801b4a2aa ARM64: track alignment padding registers on AAPCS targets
This implements clause C.8 of the AAPCS in the front-end, so that Clang
accurately knows when the registers run out and it has to insert padding before
the stack objects begin.

PR19432.

llvm-svn: 206296
2014-04-15 14:55:11 +00:00
Richard Smith a1a808c541 Ensure we evaluate VLA bounds if a variably-modified type is used as the
argument to __builtin_va_arg. Patch by Rahul Jain, some test massaging and
IR emission order changes by me.

llvm-svn: 206223
2014-04-14 23:47:48 +00:00
Reid Kleckner fb873af67e Update Clang for LLVM split stack API changes in r205997
Patch by Alex Crichton!

llvm-svn: 205998
2014-04-10 22:59:13 +00:00
Warren Hunt 975d58c0f9 [MS-ABI] Lit fix for r205810
On linux strings have different linkage than on windows.  This 
patch makes the lit test more general.

llvm-svn: 205812
2014-04-08 22:49:38 +00:00
Warren Hunt c3b18967ed [MS-ABI] Add support for #pragma section and related pragmas
This patch adds support for the msvc pragmas section, bss_seg, code_seg, 
const_seg and data_seg as well as support for __declspec(allocate()).

Additionally it corrects semantics and adds diagnostics for 
__attribute__((section())) and the interaction between the attribute 
and the msvc pragmas and declspec.  In general conflicts should now be 
well diganosed within and among these features.

In supporting the pragmas new machinery for uniform lexing for 
msvc pragmas was introduced.  The new machinery always lexes the 
entire pragma and stores it on an annotation token.  The parser 
is responsible for parsing the pragma when the handling the 
annotation token.

There is a known outstanding bug in this implementation in C mode.  
Because these attributes and pragmas apply _only_ to definitions, we 
process them at the time we detect a definition.  Due to tentative 
definitions in C, we end up processing the definition late.  This means 
that in C mode, everything that ends up in a BSS section will end up in 
the _last_ BSS section rather than the one that was live at the time of 
tentative definition, even if that turns out to be the point of actual 
definition.  This issue is not known to impact anything as of yet 
because we are not aware of a clear use or use case for #pragma bss_seg 
but should be fixed at some point.

Differential Revision=http://reviews.llvm.org/D3065#inline-16241 

llvm-svn: 205810
2014-04-08 22:30:47 +00:00
Reid Kleckner 0dc06b9a3d -fms-extensions: Don't define __PRETTY_FUNCTION__ to __FUNCTION__
This reverts r90596 from 2009. Having this macro definition makes Clang
strictly less useful with -fms-extensions.

llvm-svn: 205729
2014-04-07 19:27:58 +00:00
David Majnemer 54e3ba5ace CodeGen: Emit some functions as weak_odr under -fms-compatibility
Summary:
MSVC always emits inline functions marked with the extern storage class
specifier.  The result is something similar to the opposite of
__attribute__((gnu_inline)).

This extension is also available in C.

This fixes PR19264.

Reviewers: rnk, rsmith

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3207

llvm-svn: 205485
2014-04-02 23:17:29 +00:00
Tim Northover b17f9a4609 ARM64: add a few bits of polynomial intrinsic codegen.
llvm-svn: 205303
2014-04-01 12:23:08 +00:00
Tim Northover 74b2def0c5 ARM64: add missing ldN/stN intrinsics and enable tests.
llvm-svn: 205296
2014-04-01 10:37:47 +00:00
Paul Robinson f067435026 Implement the 'optnone' attribute, which suppresses most optimizations
on a function.

llvm-svn: 205255
2014-03-31 22:29:15 +00:00
Tim Northover 0c68faa455 ARM64: enable aarch64-neon-intrinsics.c test
This adds support for the various NEON intrinsics used by
aarch64-neon-intrinsics.c (originally written for AArch64) and enables the
test.

My implementations are designed to be semantically correct, the actual code
quality looks like its a wash between the two backends, and is frequently
different (hence the large number of CHECK changes).

llvm-svn: 205210
2014-03-31 15:47:09 +00:00
Chandler Carruth 1ae5a684a7 [ARM64] Use %clang_cc1 consistently in the new arm64 codegen tests.
Really, all tests outside of the Driver tree should use %clang_cc1, but
these are new and easy to fix, and many of them use buitlin headers
which don't work as well without using %clang_cc1.

llvm-svn: 205147
2014-03-30 13:40:57 +00:00
Hal Finkel ecdb454aa7 [PowerPC] Make -pg generate calls to _mcount not mcount
At least on REL6 (Linux/glibc 2.12), the proper symbol for generating gprof
data is _mcount, not mcount. Prior to this change, compiling with -pg would
generate linking errors (because of unresolved references to mcount), after
this change -pg seems at least minimally functional.

llvm-svn: 205144
2014-03-30 13:00:06 +00:00
Tim Northover a2ee433c8d ARM64: initial clang support commit.
This adds Clang support for the ARM64 backend. There are definitely
still some rough edges, so please bring up any issues you see with
this patch.

As with the LLVM commit though, we think it'll be more useful for
merging with AArch64 from within the tree.

llvm-svn: 205100
2014-03-29 15:09:45 +00:00
David Majnemer af3698066a CodeGen: Don't crash when replacing functions
The peculiarities of C99 create scenario where an LLVM IR function
declaration may need to be replaced with a definition baring a different
type because the prototype and definition are not required to agree.

However, we were not properly deferring this when it occurred.

This fixes PR19280.

llvm-svn: 205099
2014-03-29 14:19:55 +00:00
Rafael Espindola a39fc6dd2a Handle and warn on aliases to weak aliases.
This produces valid IR now that llvm rejects aliases to weak aliases and warns
the user that the resolution is not changed if the weak alias is overridden.

llvm-svn: 204935
2014-03-27 15:27:20 +00:00
Reid Kleckner 185940a765 MS asm: Filter out fpsw clobbers
When parsing MS inline assembly, we note that fpsw is an implicit def of
most x87 FP operations, and add it to the clobber list.  However, we
don't recognize fpsw as a gcc register name, and we assert.  Clang
always adds an fpsr clobber, which means the same thing to LLVM, so we
can just use that.

This test case was broken by my LLVM change r196939.

Reviewers: echristo

Differential Revision: http://llvm-reviews.chandlerc.com/D2993

llvm-svn: 204878
2014-03-27 00:00:03 +00:00
Logan Chien 74798a34e6 Fix atomic libcall.
This commit fixes a cast instruction assertion failure
due to the incompatible type cast.  This will only happen when
the target requires atomic libcalls.

llvm-svn: 204834
2014-03-26 17:35:01 +00:00
Renato Golin c491a8d457 Add support for __builtin___clear_cache in Clang
Adding the mapping between __builtin___clear_cache into @llvm.clear_cache

llvm-svn: 204820
2014-03-26 15:36:05 +00:00
David Majnemer 58e5bee17a MS ABI: Eliminate Duplicate Strings
COFF doesn't have mergeable sections so LLVM/clang's normal tactics for
string deduplication will not have any effect.

To remedy this we place each string inside it's own section and mark
the section as IMAGE_COMDAT_SELECT_ANY.  However, we can only do this if the
string has an external name that we can generate from it's contents.

To be compatible with MSVC, we must use their scheme.  Otherwise identical
strings in translation units from clang may not be deduplicated with
translation units in MSVC.

This fixes PR18248.

N.B. We will not attempt to do anything with a string literal which is not of
type 'char' or 'wchar_t' because their compiler does not support unicode
string literals as of this date.  Further, we avoid doing this if
either -fwritable-strings or -fsanitize=address are present.

This reverts commit r204596.

llvm-svn: 204675
2014-03-24 21:43:36 +00:00
Will Schmidt 0c67b7e3f2 Update DataLayout/DescriptionString for ppc64le
Update DataLayout/DescriptionString for ppc64le

Similar LLVM change made in r203664

Testcase included.

llvm-svn: 204613
2014-03-24 15:48:02 +00:00
Timur Iskhodzhanov 89f588ff73 Revert r204562,204566,204586,204587 as they broke ASan on Windows
llvm-svn: 204596
2014-03-24 10:31:09 +00:00
David Majnemer 914d8c0f48 CodeGen: Remove unneeded directives
Use two check-prefix patterns per FileCheck invocation for these tests,
this cleanly removes redundant CHECK directives.

Thanks to Richard Smith for the idea!

llvm-svn: 204587
2014-03-24 05:53:11 +00:00
David Majnemer b46a017248 CodeGen: Make string tests exercise the MS ABI
r204562 unwittingly failed tests for some bots.  Make those tests work
with both the Itanium and MS ABIs.

llvm-svn: 204566
2014-03-23 18:22:10 +00:00
David Majnemer 3843a05edf MS ABI: Eliminate Duplicate Strings
COFF doesn't have mergeable sections so LLVM/clang's normal tactics for
string deduplication will not have any effect.

To remedy this we place each string inside it's own section and mark
the section as IMAGE_COMDAT_SELECT_ANY.  However, we can only do this if the
string has an external name that we can generate from it's contents.

To be compatible with MSVC, we must use their scheme.  Otherwise identical
strings in translation units from clang may not be deduplicated with
translation units in MSVC.

This fixes PR18248.

N.B. We will not attempt to do anything with a string literal which is not of
type 'char' or 'wchar_t' because their compiler does not support unicode
string literals as of this date.

llvm-svn: 204562
2014-03-23 17:47:16 +00:00
Alexey Samsonov cb3f812b6b Kill -faddress-sanitizer, -fthread-sanitizer and -fcatch-undefined-behavior flags.
These flags are deprecated since at least Clang 3.3. Users should instead
use -fsanitize= with appropriate values.

llvm-svn: 204330
2014-03-20 10:48:29 +00:00
Christian Pirker 44f7cdc2fc clang/test/CodeGen/aarch64-varargs.c: works now regardless of assertions.
llvm-svn: 203944
2014-03-14 16:30:06 +00:00
NAKAMURA Takumi 3554912129 clang/test/CodeGen/aarch64-varargs.c: Suppress this for -Asserts, for now.
llvm-svn: 203920
2014-03-14 12:42:41 +00:00
Christian Pirker a74c7914ad AArch64_be specific clang target settings
llvm-svn: 203918
2014-03-14 12:15:45 +00:00