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Changes default for render-test to sm_6_5.
Since sm_6_5 is the new default, remove the -use-dxil option, add
-use-dxcb option
Remove -use-dxil option from all test cases.
Add -use-dxcb to two tests that needed it.
Fixes #7611
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Fixes issue #6898
The -emit-spirv-via-glsl slang-test option has been broken for
some amount of time. Tests that were using it were operating as
if using -emit-spirv-directly, leading to many duplicated tests.
After fixing the test option, there were an number of errors that
appeared as a result.
This change fixes the broken test option and the resulting test
errors. Some of the test errors revealed some legitimate issues,
such as:
-The GLSL bitCount instrinsic only supports 32-bit integers and
requires emulation for other bit widths.
-Emitting GLSL 8-bit and 16-bit glsl integer types did not emit
the proper extension requirements
-Emitting GLSL and casting for 16-bit integers was missing a
closing parenthesis.
-Missing profile for GL_EXT_shader_explicit_arithmetic_types
-Missing toType cases for UInt8/Int8 for the kIROp_BitCast case
in tryEmitInstExprImpl.
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Change adds 16-bit and 8-bit support for countbits intrinsic. In
cases where a backend's native counbits lacks support, support
is emulated.
New tests are added for 16-bit and 8-bit support. Additional testing
added for 32-bit and minor updates made to 64-bit countbits.
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Change modifies the countbits intrinsic to use generics in order to
support 64bit countbits on select platforms where this is supported.
On platforms where this is not natively supported, we emulate by
converting the 64-bit type into a uint2 (metal and spir-v).
This should align with the implementation of other uint64_t
intrinsics such as abs, min, max and clamp.
Added new countbits64 test to verify changes.
Updated documentation for 64bit-type-support.html
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