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| author | Ben Crocker <[email protected]> | 2017-02-10 18:08:07 -0500 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2017-02-20 18:21:22 +0000 |
| commit | b934aae36410e09892e772b26f61fed5d037fc69 (patch) | |
| tree | c31473e334f257a26ff746b63261991cdfd8aba0 /src/gallium/tests/graw | |
| parent | a8e9c630f3dc656d107c4252b90c8e991438a3c4 (diff) | |
gallivm: Override getHostCPUName() "generic" w/ "pwr8" (v4)
If llvm::sys::getHostCPUName() returns "generic", override
it with "pwr8" (on PPC64LE).
This is a work-around for a bug in LLVM: a table entry for "POWER8NVL"
is missing, resulting in (big-endian) "generic" being returned on
little-endian Power8NVL systems. The result is that code that
attempts to load the least significant 32 bits of a 64-bit quantity in
memory loads the wrong half.
This omission should be fixed in the next version of LLVM (4.0),
but this work-around should be left in place in case some
future version of POWER<n> also ends up unrepresented in LLVM's table.
This workaround fixes failures in the Piglit arb_gpu_shader_fp64 conversion
tests on POWER8NVL processors.
(V4: add similar comment in the code.)
Signed-off-by: Ben Crocker <[email protected]>
Cc: 12.0 13.0 17.0 <[email protected]>
Acked-by: Emil Velikov <[email protected]>
Diffstat (limited to 'src/gallium/tests/graw')
0 files changed, 0 insertions, 0 deletions