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Reviewed-by: Kenneth Graunke <[email protected]>
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In optimized builds, visit(ir_expression *) experiences inlining with gcc that
leads the function to have a roughly 32KB stack frame. This is a problem given
that the function is called recursively. In non-optimized builds, the stack
frame is much smaller, hence one gets crashes that happen only in optimized
builds.
Arguably there is a compiler bug or at least severe misfeature here. In any
case, the easy thing to do for now seems to be moving the bulk of the
non-recursive code into a separate function. This is sufficient to convince my
version of gcc not to blow up the stack frame of the recursive part. Just to be
sure, add the gcc-specific noinline attribute to prevent this bug from
reoccuring if inliner heuristics change.
v2: put ATTRIBUTE_NOINLINE into macros.h
Cc: "11.1 11.2" <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95133
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95026
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92850
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: Rob Clark <[email protected]>
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These were being defined in SCons, but it's not practical:
- we actually need to include Gallium headers from external source trees, with
completely disjoint build infrastructure, and it's unsustainable to
replicate the HAVE_xxx checks or even hard-coded defines across
everywhere.
- checking compiler version via command line doesn't really work due to
Clang essentially being like a cameleon which can fake either GCC or
MSVC
There's no change for autoconf.
Reviewed-by: Roland Scheidegger <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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This is mostly for variables that are only used in asserts and cause
unused-but-set-variable warnings in release builds. Could just use
UNUSED directly, but MAYBE_UNUSED should be less confusing and is
similar to what the Linux kernel has.
And yes __attribute__((unused)) can be used on variables on both GCC 4.2
(oldest supported by mesa) and clang 3.0 (just some random old version,
not sure what's the minimum for mesa).
Signed-off-by: Grazvydas Ignotas <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>
Reviewed-by: Chad Versace <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
Acked-by: Alan Coopersmith <[email protected]>
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To avoid collission with windows.h's PURE macro.
We could consider eventually renaming to __pure, but that would require
further care, so it's left to the future.
Reviewed-by: Brian Paul <[email protected]>
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These are really useful hints to the compiler in the absence of link-time
optimization, and I'm going to use them in VC4.
I've made the const attribute be ATTRIBUTE_CONST unlike other function
attributes, because we have other things in the tree #defining CONST for
their own unrelated purposes.
v2: Alphabetize.
Reviewed-by: Kenneth Graunke <[email protected]> (v1)
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In the kernel, this is called __must_check; all our attribute macros in
Mesa appear to be uppercase, so I went with that.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Move DIV_ROUND_UP to a shared location accessible everywhere
Reviewed-by: Brian Paul <[email protected]>
Signed-off-by: Axel Davy <[email protected]>
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Suggested-by: Emil Velikov <[email protected]>
Signed-off-by: Vinson Lee <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Replace the _MSC_VER >= 1200 with defined (_MSC_VER) and compact if/else
statements. We require MSVC 2008 or later with commit 46110c5d564.
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
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Define the macro in src/util/macros.h rather than in two different
places. Note that USED isn't actually used anywhere at this time.
Reviewed-by: Jose Fonseca <[email protected]>
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This reverts commits d6eb572905e39c36168b8f5da240af961f9dde0a and
58e8468d113c7d3d4a59ea4a8d70fd45b78e85e6.
This is no longer necessary as we aren't using it in NIR anymore. Also, it
broke the build on some strange systems so let's put it back in querymatrix
where it came from.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88852
Acked-by: Matt Turner <[email protected]>
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The problem is that the fallbacks we have at the moment don't work in C++.
While we could theoretically fix the fallbacks it would also raise the
issue of correctly detecting the fpclassify function. So, for now, we'll
just disable it until we actually have a C++ user.
Reported-by: Tom Stellard <[email protected]>
Tested-by: Tom Stellard <[email protected]>
Tested-by: EdB <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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Previously, if __builtin_unreachable() was unavailable, the
unreachable macro was defined to do nothing. We do better here, by at
least still making it an assert.
Reviewed-by: Ian Romanick <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
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Based on the description of __assume at:
http://msdn.microsoft.com/en-us/library/1b3fsfxw.aspx
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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Cuts a few hundred bytes from the DRI drivers, so it must give gcc some
extra information.
Reviewed-by: Ian Romanick <[email protected]>
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Note that I had to add support for testing the packed attribute to
m4/ax_gcc_func_attribute.m4.
Reviewed-by: Jason Ekstrand <[email protected]> [C bits]
Reviewed-by: Ian Romanick <[email protected]>
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Presumbly this will let clang and other compilers use the built-ins as
well.
Notice two changes specifically:
- in _mesa_next_pow_two_64(), always use __builtin_clzll and add a
static assertion that this is safe.
- in macros.h, remove the clang-specific definition since it should
be able to detect __builtin_unreachable in configure.
Reviewed-by: Jason Ekstrand <[email protected]> [C bits]
Reviewed-by: Ian Romanick <[email protected]>
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This gathers macros that have been included across components into util so
that the include chain can be more vertical. In particular, this makes
util stand on its own without any dependence whatsoever on the rest of
mesa.
Signed-off-by: "Jason Ekstrand" <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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