This is essentially the same problem as r174031: a lazy binding for the first
field of a struct may stomp on an existing default binding for the
entire struct. Because of the way RegionStore is set up, we can't help
but lose the top-level binding, but then we need to make sure that accessing
one of the other fields doesn't come back as Undefined.
In this case, RegionStore is now correctly detecting that the lazy binding
we have isn't the right type, but then failing to follow through on the
implications of that: we don't know anything about the other fields in the
aggregate. This fix adds a test when searching for other kinds of default
values to see if there's a lazy binding we rejected, and if so returns
a symbolic value instead of Undefined.
The long-term fix for this is probably a new Store model; see
<rdar://problem/12701038>.
Fixes <rdar://problem/13292559>.
llvm-svn: 176144
definition DIE, to make old GDB happy.
We have a regression for old GDB when Clang uses DW_TAG_member to declare
static members inside a class, instead of DW_TAG_variable. This patch will fix
this regression.
rdar://problem/13291234
llvm-svn: 176143
isBeforeInTranslationUnit() uses a cache to reduce the expensive work
to compute a common ancestor for two FileIDs. This work is very
expensive, so even caching the latest used FileIDs was a big win.
A closer analysis of the cache before, however, shows that the cache
access pattern would oscillate between a working set of FileIDs, and
thus caching more pairs would be profitable.
This patch adds a side table for extending caching. This side table
is bounded in size (experimentally determined in this case from
a simple Objective-C project), and when the table gets too large
we fall back to the single entry caching before as before.
On Sketch (a small example Objective-C project), this optimization
reduces -fsyntax-only time on SKTGraphicView.m by 5%. This is
for a project that is already using PCH.
Fixes <rdar://problem/13299847>
llvm-svn: 176142
Fixed an issue with clang 500's new way to represent static class variables where it emits a DW_TAG_member with a DW_AT_external(0x01) attribute and no DW_AT_data_member_location.
llvm-svn: 176140
enhancement done the trivial way; by extending inputs and truncating outputs
which is addequate for targets with little or no support for integer arithmetic
on integer types less than 32 bits.
llvm-svn: 176139
There's no need to generate a stack frame for PPC32 SVR4 when there are
no local variables assigned to the stack, i.e., when no red zone is needed.
(PPC64 supports a red zone, but PPC32 does not.)
llvm-svn: 176124
This would error in C++ mode unless the variable also had a cv
qualifier.
e.g.
__attribute__((address_space(2))) float foo = 1.0f; would error but
__attribute__((address_space(2))) const float foo = 1.0f; would not.
llvm-svn: 176121
TAG_member inside a class to the specification DIE.
Having AT_MIPS_linkage_name on TAG_member caused old gdb (GNU 6.3.50) to
error out. Also gcc 4.7 has AT_MIPS_linkage_name on the specification DIE.
rdar://problem/13291234
llvm-svn: 176120
For integer constants, allow 'L', 'UL' as well as 'ULL' and 'LL'. This provides
better support for shared headers between .s and .c files that define bunches
of constant values.
rdar://9321056
llvm-svn: 176118
Fixes PR15358 and <rdar://problem/13295437>.
Along the way, shorten path diagnostics that say "Variable 'x'" to just
be "'x'". By the context, it is obvious that we have a variable,
and so this just consumes text space.
llvm-svn: 176115
Now that implicitly hidden template arguments can make an instantiation hidden,
it is important to look at more than just the canonical decl of the argument
in order to see if an attribute is available in a more recent decl.
This has the disadvantage of exposing when getExplicitVisibility is called,
but lets us handle cases like
template <typename T>
struct __attribute__((visibility("default"))) barT {
static void zed() {}
};
class foo;
class __attribute__((visibility("default"))) foo;
template struct barT<foo>;
llvm-svn: 176112
GCC applies a pragma weak to a decl if it matches the mangled name. We used
to apply if it matched the plain name.
This patch is a compromise: we apply the pragma only if it matches the name
and the decl has C language linkage.
llvm-svn: 176110
Make it possible to map between e32 and e64 encoding opcodes.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176104
Include immediate folding and SGPR limit handling for VOP3 instructions.
v2: remove leftover hasExtraSrcRegAllocReq
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176101
v2: document why we hardcode VCC for now.
This is a candidate for the mesa-stable branch.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176099
Prevent producing real strange tablegen code by using
proper register sizes, alignments and hierarchy.
Also cleanup the unused definitions and add some comments.
v2: add SGPR 512 bit registers, stop registers from wrapping around,
fix SGPR alignment
This is a candidate for the mesa-stable branch.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176098
This is a candidate for the mesa-stable branch.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176097
Jordan Rose